diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ffe864390c5a..dca917ac21d9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5828,6 +5828,14 @@
 			improve timer resolution at the expense of processing
 			more timer interrupts.
 
+	xen.event_eoi_delay=	[XEN]
+			How long to delay EOI handling in case of event
+			storms (jiffies). Default is 10.
+
+	xen.event_loop_timeout=	[XEN]
+			After which time (jiffies) the event handling loop
+			should start to delay EOI handling. Default is 2.
+
 	nopv=		[X86,XEN,KVM,HYPER_V,VMWARE]
 			Disables the PV optimizations forcing the guest to run
 			as generic guest with no PV drivers. Currently support
diff --git a/Documentation/devicetree/bindings/soc/ti/k3-ringacc.yaml b/Documentation/devicetree/bindings/soc/ti/k3-ringacc.yaml
index ae33fc957141..c3c595e235a8 100644
--- a/Documentation/devicetree/bindings/soc/ti/k3-ringacc.yaml
+++ b/Documentation/devicetree/bindings/soc/ti/k3-ringacc.yaml
@@ -62,11 +62,6 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint32
     description: TI-SCI device id of the ring accelerator
 
-  ti,dma-ring-reset-quirk:
-    $ref: /schemas/types.yaml#definitions/flag
-    description: |
-      enable ringacc/udma ring state interoperability issue software w/a
-
 required:
   - compatible
   - reg
@@ -94,7 +89,6 @@ examples:
             reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
             ti,num-rings = <818>;
             ti,sci-rm-range-gp-rings = <0x2>; /* GP ring range */
-            ti,dma-ring-reset-quirk;
             ti,sci = <&dmsc>;
             ti,sci-dev-id = <187>;
             msi-parent = <&inta_main_udmass>;
diff --git a/Documentation/userspace-api/media/v4l/colorspaces-defs.rst b/Documentation/userspace-api/media/v4l/colorspaces-defs.rst
index 01404e1f609a..4089f426258d 100644
--- a/Documentation/userspace-api/media/v4l/colorspaces-defs.rst
+++ b/Documentation/userspace-api/media/v4l/colorspaces-defs.rst
@@ -36,8 +36,7 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
 :c:type:`v4l2_hsv_encoding` specifies which encoding is used.
 
 .. note:: The default R'G'B' quantization is full range for all
-   colorspaces except for BT.2020 which uses limited range R'G'B'
-   quantization.
+   colorspaces. HSV formats are always full range.
 
 .. tabularcolumns:: |p{6.7cm}|p{10.8cm}|
 
@@ -169,8 +168,8 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
       - Details
     * - ``V4L2_QUANTIZATION_DEFAULT``
       - Use the default quantization encoding as defined by the
-	colorspace. This is always full range for R'G'B' (except for the
-	BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
+	colorspace. This is always full range for R'G'B' and HSV.
+	It is usually limited range for Y'CbCr.
     * - ``V4L2_QUANTIZATION_FULL_RANGE``
       - Use the full range quantization encoding. I.e. the range [0…1] is
 	mapped to [0…255] (with possible clipping to [1…254] to avoid the
@@ -180,4 +179,4 @@ whole range, 0-255, dividing the angular value by 1.41. The enum
     * - ``V4L2_QUANTIZATION_LIM_RANGE``
       - Use the limited range quantization encoding. I.e. the range [0…1]
 	is mapped to [16…235]. Cb and Cr are mapped from [-0.5…0.5] to
-	[16…240].
+	[16…240]. Limited Range cannot be used with HSV.
diff --git a/Documentation/userspace-api/media/v4l/colorspaces-details.rst b/Documentation/userspace-api/media/v4l/colorspaces-details.rst
index 300c5d2e7d0f..cf1b825ec34a 100644
--- a/Documentation/userspace-api/media/v4l/colorspaces-details.rst
+++ b/Documentation/userspace-api/media/v4l/colorspaces-details.rst
@@ -377,9 +377,8 @@ Colorspace BT.2020 (V4L2_COLORSPACE_BT2020)
 The :ref:`itu2020` standard defines the colorspace used by Ultra-high
 definition television (UHDTV). The default transfer function is
 ``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_BT2020``. The default R'G'B' quantization is limited
-range (!), and so is the default Y'CbCr quantization. The chromaticities
-of the primary colors and the white reference are:
+``V4L2_YCBCR_ENC_BT2020``. The default Y'CbCr quantization is limited range.
+The chromaticities of the primary colors and the white reference are:
 
 
 
diff --git a/Makefile b/Makefile
index 50e927f34853..9013118b8a57 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 9
-SUBLEVEL = 3
-EXTRAVERSION =
+SUBLEVEL = 4
+EXTRAVERSION = -rc1
 NAME = Kleptomaniac Octopus
 
 # *DOCUMENTATION*
diff --git a/arch/Kconfig b/arch/Kconfig
index af14a567b493..94821e3f94d1 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -414,6 +414,13 @@ config MMU_GATHER_NO_GATHER
 	bool
 	depends on MMU_GATHER_TABLE_FREE
 
+config ARCH_WANT_IRQS_OFF_ACTIVATE_MM
+	bool
+	help
+	  Temporary select until all architectures can be converted to have
+	  irqs disabled over activate_mm. Architectures that do IPI based TLB
+	  shootdowns should enable this.
+
 config ARCH_HAVE_NMI_SAFE_CMPXCHG
 	bool
 
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi
index 79ec27c043c1..2a151607b080 100644
--- a/arch/arc/boot/dts/axc001.dtsi
+++ b/arch/arc/boot/dts/axc001.dtsi
@@ -91,7 +91,7 @@ arcpct0: pct {
 	 * avoid duplicating the MB dtsi file given that IRQ from
 	 * this intc to cpu intc are different for axs101 and axs103
 	 */
-	mb_intc: dw-apb-ictl@e0012000 {
+	mb_intc: interrupt-controller@e0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
 		reg = < 0x0 0xe0012000 0x0 0x200 >;
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index ac8e1b463a70..cd1edcf4f95e 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -129,7 +129,7 @@ mmc@15000 {
 	 * avoid duplicating the MB dtsi file given that IRQ from
 	 * this intc to cpu intc are different for axs101 and axs103
 	 */
-	mb_intc: dw-apb-ictl@e0012000 {
+	mb_intc: interrupt-controller@e0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
 		reg = < 0x0 0xe0012000 0x0 0x200 >;
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 9da21e7fd246..70779386ca79 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -135,7 +135,7 @@ mmc@15000 {
 	 * avoid duplicating the MB dtsi file given that IRQ from
 	 * this intc to cpu intc are different for axs101 and axs103
 	 */
-	mb_intc: dw-apb-ictl@e0012000 {
+	mb_intc: interrupt-controller@e0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
 		reg = < 0x0 0xe0012000 0x0 0x200 >;
diff --git a/arch/arc/boot/dts/vdk_axc003.dtsi b/arch/arc/boot/dts/vdk_axc003.dtsi
index f8be7ba8dad4..c21d0eb07bf6 100644
--- a/arch/arc/boot/dts/vdk_axc003.dtsi
+++ b/arch/arc/boot/dts/vdk_axc003.dtsi
@@ -46,7 +46,7 @@ debug_uart: dw-apb-uart@5000 {
 
 	};
 
-	mb_intc: dw-apb-ictl@e0012000 {
+	mb_intc: interrupt-controller@e0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
 		reg = < 0xe0012000 0x200 >;
diff --git a/arch/arc/boot/dts/vdk_axc003_idu.dtsi b/arch/arc/boot/dts/vdk_axc003_idu.dtsi
index 0afa3e53a4e3..4d348853ac7c 100644
--- a/arch/arc/boot/dts/vdk_axc003_idu.dtsi
+++ b/arch/arc/boot/dts/vdk_axc003_idu.dtsi
@@ -54,7 +54,7 @@ debug_uart: dw-apb-uart@5000 {
 
 	};
 
-	mb_intc: dw-apb-ictl@e0012000 {
+	mb_intc: interrupt-controller@e0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
 		reg = < 0xe0012000 0x200 >;
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index 79849f37e782..145722f80c9b 100644
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -562,7 +562,7 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
 {
 	struct arc_reg_pct_build pct_bcr;
 	struct arc_reg_cc_build cc_bcr;
-	int i, has_interrupts, irq;
+	int i, has_interrupts, irq = -1;
 	int counter_size;	/* in bits */
 
 	union cc_name {
@@ -637,19 +637,28 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
 		.attr_groups	= arc_pmu->attr_groups,
 	};
 
-	if (has_interrupts && (irq = platform_get_irq(pdev, 0) >= 0)) {
+	if (has_interrupts) {
+		irq = platform_get_irq(pdev, 0);
+		if (irq >= 0) {
+			int ret;
 
-		arc_pmu->irq = irq;
+			arc_pmu->irq = irq;
 
-		/* intc map function ensures irq_set_percpu_devid() called */
-		request_percpu_irq(irq, arc_pmu_intr, "ARC perf counters",
-				   this_cpu_ptr(&arc_pmu_cpu));
+			/* intc map function ensures irq_set_percpu_devid() called */
+			ret = request_percpu_irq(irq, arc_pmu_intr, "ARC perf counters",
+						 this_cpu_ptr(&arc_pmu_cpu));
+
+			if (!ret)
+				on_each_cpu(arc_cpu_pmu_irq_init, &irq, 1);
+			else
+				irq = -1;
+		}
 
-		on_each_cpu(arc_cpu_pmu_irq_init, &irq, 1);
-	} else {
-		arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
 	}
 
+	if (irq == -1)
+		arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+
 	/*
 	 * perf parser doesn't really like '-' symbol in events name, so let's
 	 * use '_' in arc pct name as it goes to kernel PMU event prefix.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e00d94b16658..23e2c0dc85c1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -506,8 +506,10 @@ config ARCH_S3C24XX
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
 	select NEED_MACH_IO_H
+	select S3C2410_WATCHDOG
 	select SAMSUNG_ATAGS
 	select USE_OF
+	select WATCHDOG
 	help
 	  Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
 	  and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 9c91afb2b404..a93009aa2f04 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -425,7 +425,6 @@ vuart: serial@1e787000 {
 				interrupts = <8>;
 				clocks = <&syscon ASPEED_CLK_APB>;
 				no-loopback-test;
-				aspeed,sirq-polarity-sense = <&syscon 0x70 25>;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
index 2b760f90f38c..5375c6699843 100644
--- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
+++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -192,6 +192,7 @@ port@6 {
 					fixed-link {
 						speed = <1000>;
 						full-duplex;
+						pause;
 					};
 				};
 			};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 0282b9de3384..52e829827505 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -410,7 +410,7 @@ abb_iva: regulator-abb-iva {
 			status = "disabled";
 		};
 
-		target-module@56000000 {
+		sgx_module: target-module@56000000 {
 			compatible = "ti,sysc-omap4", "ti,sysc";
 			reg = <0x5600fe00 0x4>,
 			      <0x5600fe10 0x4>;
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index 8ed510ab00c5..cb309743de5d 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -74,3 +74,13 @@ &cpu_thermal {
 };
 
 /include/ "omap443x-clocks.dtsi"
+
+/*
+ * Use dpll_per for sgx at 153.6MHz like droid4 stock v3.0.8 Android kernel
+ */
+&sgx_module {
+	assigned-clocks = <&l3_gfx_clkctrl OMAP4_GPU_CLKCTRL 24>,
+			  <&dpll_per_m7x2_ck>;
+	assigned-clock-rates = <0>, <153600000>;
+	assigned-clock-parents = <&dpll_per_m7x2_ck>;
+};
diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 822207f63ee0..bd4450dbdcb6 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -47,6 +47,18 @@ mfc_right: region@51000000 {
 		};
 	};
 
+	pmic_ap_clk: clock-0 {
+		/* Workaround for missing clock on PMIC */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+	};
+
+	bt_codec: bt_sco {
+		compatible = "linux,bt-sco";
+		#sound-dai-cells = <0>;
+	};
+
 	vibrator_pwr: regulator-fixed-0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vibrator-en";
@@ -54,7 +66,7 @@ vibrator_pwr: regulator-fixed-0 {
 		gpio = <&gpj1 1 GPIO_ACTIVE_HIGH>;
 
 		pinctrl-names = "default";
-		pinctr-0 = <&vibrator_ena>;
+		pinctrl-0 = <&vibrator_ena>;
 	};
 
 	touchkey_vdd: regulator-fixed-1 {
@@ -533,7 +545,7 @@ poweroff: syscon-poweroff {
 		value = <0x5200>;
 	};
 
-	spi_lcd: spi-gpio-0 {
+	spi_lcd: spi-2 {
 		compatible = "spi-gpio";
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -624,6 +636,11 @@ touchscreen@4a {
 	};
 };
 
+&i2s0 {
+	dmas = <&pdma0 9>, <&pdma0 10>, <&pdma0 11>;
+	status = "okay";
+};
+
 &mfc {
 	memory-region = <&mfc_left>, <&mfc_right>;
 };
@@ -815,6 +832,11 @@ &pwm {
 	samsung,pwm-outputs = <1>;
 };
 
+&rtc {
+	clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>;
+	clock-names = "rtc", "rtc_src";
+};
+
 &sdhci1 {
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/arm/boot/dts/s5pv210-fascinate4g.dts b/arch/arm/boot/dts/s5pv210-fascinate4g.dts
index 65eed01cfced..ca064359dd30 100644
--- a/arch/arm/boot/dts/s5pv210-fascinate4g.dts
+++ b/arch/arm/boot/dts/s5pv210-fascinate4g.dts
@@ -35,6 +35,80 @@ vol-up {
 			linux,code = <KEY_VOLUMEUP>;
 		};
 	};
+
+	headset_micbias_reg: regulator-fixed-3 {
+		compatible = "regulator-fixed";
+		regulator-name = "Headset_Micbias";
+		gpio = <&gpj2 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&headset_micbias_ena>;
+	};
+
+	main_micbias_reg: regulator-fixed-4 {
+		compatible = "regulator-fixed";
+		regulator-name = "Main_Micbias";
+		gpio = <&gpj4 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&main_micbias_ena>;
+	};
+
+	sound {
+		compatible = "samsung,fascinate4g-wm8994";
+
+		model = "Fascinate4G";
+
+		extcon = <&fsa9480>;
+
+		main-micbias-supply = <&main_micbias_reg>;
+		headset-micbias-supply = <&headset_micbias_reg>;
+
+		earpath-sel-gpios = <&gpj2 6 GPIO_ACTIVE_HIGH>;
+
+		io-channels = <&adc 3>;
+		io-channel-names = "headset-detect";
+		headset-detect-gpios = <&gph0 6 GPIO_ACTIVE_HIGH>;
+		headset-key-gpios = <&gph3 6 GPIO_ACTIVE_HIGH>;
+
+		samsung,audio-routing =
+			"HP", "HPOUT1L",
+			"HP", "HPOUT1R",
+
+			"SPK", "SPKOUTLN",
+			"SPK", "SPKOUTLP",
+
+			"RCV", "HPOUT2N",
+			"RCV", "HPOUT2P",
+
+			"LINE", "LINEOUT2N",
+			"LINE", "LINEOUT2P",
+
+			"IN1LP", "Main Mic",
+			"IN1LN", "Main Mic",
+
+			"IN1RP", "Headset Mic",
+			"IN1RN", "Headset Mic",
+
+			"Modem Out", "Modem TX",
+			"Modem RX", "Modem In",
+
+			"Bluetooth SPK", "TX",
+			"RX", "Bluetooth Mic";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&headset_det &earpath_sel>;
+
+		cpu {
+			sound-dai = <&i2s0>, <&bt_codec>;
+		};
+
+		codec {
+			sound-dai = <&wm8994>;
+		};
+	};
 };
 
 &fg {
@@ -51,6 +125,12 @@ &pinctrl0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sleep_cfg>;
 
+	headset_det: headset-det {
+		samsung,pins = "gph0-6", "gph3-6";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+	};
+
 	fg_irq: fg-irq {
 		samsung,pins = "gph3-3";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
@@ -58,6 +138,24 @@ fg_irq: fg-irq {
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	headset_micbias_ena: headset-micbias-ena {
+		samsung,pins = "gpj2-5";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
+	earpath_sel: earpath-sel {
+		samsung,pins = "gpj2-6";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
+	main_micbias_ena: main-micbias-ena {
+		samsung,pins = "gpj4-2";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	/* Based on vendor kernel v2.6.35.7 */
 	sleep_cfg: sleep-cfg {
 		PIN_SLP(gpa0-0, PREV, NONE);
diff --git a/arch/arm/boot/dts/s5pv210-galaxys.dts b/arch/arm/boot/dts/s5pv210-galaxys.dts
index 5d10dd67eacc..560f830b6f6b 100644
--- a/arch/arm/boot/dts/s5pv210-galaxys.dts
+++ b/arch/arm/boot/dts/s5pv210-galaxys.dts
@@ -72,6 +72,73 @@ fmradio@10 {
 			pinctrl-0 = <&fm_irq &fm_rst>;
 		};
 	};
+
+	micbias_reg: regulator-fixed-3 {
+		compatible = "regulator-fixed";
+		regulator-name = "MICBIAS";
+		gpio = <&gpj4 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&micbias_reg_ena>;
+	};
+
+	sound {
+		compatible = "samsung,aries-wm8994";
+
+		model = "Aries";
+
+		extcon = <&fsa9480>;
+
+		main-micbias-supply = <&micbias_reg>;
+		headset-micbias-supply = <&micbias_reg>;
+
+		earpath-sel-gpios = <&gpj2 6 GPIO_ACTIVE_HIGH>;
+
+		io-channels = <&adc 3>;
+		io-channel-names = "headset-detect";
+		headset-detect-gpios = <&gph0 6 GPIO_ACTIVE_LOW>;
+		headset-key-gpios = <&gph3 6 GPIO_ACTIVE_HIGH>;
+
+		samsung,audio-routing =
+			"HP", "HPOUT1L",
+			"HP", "HPOUT1R",
+
+			"SPK", "SPKOUTLN",
+			"SPK", "SPKOUTLP",
+
+			"RCV", "HPOUT2N",
+			"RCV", "HPOUT2P",
+
+			"LINE", "LINEOUT2N",
+			"LINE", "LINEOUT2P",
+
+			"IN1LP", "Main Mic",
+			"IN1LN", "Main Mic",
+
+			"IN1RP", "Headset Mic",
+			"IN1RN", "Headset Mic",
+
+			"IN2LN", "FM In",
+			"IN2RN", "FM In",
+
+			"Modem Out", "Modem TX",
+			"Modem RX", "Modem In",
+
+			"Bluetooth SPK", "TX",
+			"RX", "Bluetooth Mic";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&headset_det &earpath_sel>;
+
+		cpu {
+			sound-dai = <&i2s0>, <&bt_codec>;
+		};
+
+		codec {
+			sound-dai = <&wm8994>;
+		};
+	};
 };
 
 &aliases {
@@ -88,6 +155,12 @@ fm_i2c_pins: fm-i2c-pins {
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	headset_det: headset-det {
+		samsung,pins = "gph0-6", "gph3-6";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+	};
+
 	fm_irq: fm-irq {
 		samsung,pins = "gpj2-4";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
@@ -102,6 +175,12 @@ fm_rst: fm-rst {
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	earpath_sel: earpath-sel {
+		samsung,pins = "gpj2-6";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	massmemory_en: massmemory-en {
 		samsung,pins = "gpj2-7";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
@@ -109,6 +188,12 @@ massmemory_en: massmemory-en {
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	micbias_reg_ena: micbias-reg-ena {
+		samsung,pins = "gpj4-2";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	/* Based on CyanogenMod 3.0.101 kernel */
 	sleep_cfg: sleep-cfg {
 		PIN_SLP(gpa0-0, PREV, NONE);
diff --git a/arch/arm/boot/dts/s5pv210.dtsi b/arch/arm/boot/dts/s5pv210.dtsi
index 1b0ee884e91d..2871351ab907 100644
--- a/arch/arm/boot/dts/s5pv210.dtsi
+++ b/arch/arm/boot/dts/s5pv210.dtsi
@@ -52,34 +52,26 @@ cpu@0 {
 		};
 	};
 
+	xxti: oscillator-0 {
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+		clock-output-names = "xxti";
+		#clock-cells = <0>;
+	};
+
+	xusbxti: oscillator-1 {
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+		clock-output-names = "xusbxti";
+		#clock-cells = <0>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
 
-		external-clocks {
-			compatible = "simple-bus";
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			xxti: oscillator@0 {
-				compatible = "fixed-clock";
-				reg = <0>;
-				clock-frequency = <0>;
-				clock-output-names = "xxti";
-				#clock-cells = <0>;
-			};
-
-			xusbxti: oscillator@1 {
-				compatible = "fixed-clock";
-				reg = <1>;
-				clock-frequency = <0>;
-				clock-output-names = "xusbxti";
-				#clock-cells = <0>;
-			};
-		};
-
 		onenand: onenand@b0600000 {
 			compatible = "samsung,s5pv210-onenand";
 			reg = <0xb0600000 0x2000>,
@@ -100,19 +92,16 @@ chipid@e0000000 {
 		};
 
 		clocks: clock-controller@e0100000 {
-			compatible = "samsung,s5pv210-clock", "simple-bus";
+			compatible = "samsung,s5pv210-clock";
 			reg = <0xe0100000 0x10000>;
 			clock-names = "xxti", "xusbxti";
 			clocks = <&xxti>, <&xusbxti>;
 			#clock-cells = <1>;
-			#address-cells = <1>;
-			#size-cells = <1>;
-			ranges;
+		};
 
-			pmu_syscon: syscon@e0108000 {
-				compatible = "samsung-s5pv210-pmu", "syscon";
-				reg = <0xe0108000 0x8000>;
-			};
+		pmu_syscon: syscon@e0108000 {
+			compatible = "samsung-s5pv210-pmu", "syscon";
+			reg = <0xe0108000 0x8000>;
 		};
 
 		pinctrl0: pinctrl@e0200000 {
@@ -128,35 +117,28 @@ wakeup-interrupt-controller {
 			};
 		};
 
-		amba {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			compatible = "simple-bus";
-			ranges;
-
-			pdma0: dma@e0900000 {
-				compatible = "arm,pl330", "arm,primecell";
-				reg = <0xe0900000 0x1000>;
-				interrupt-parent = <&vic0>;
-				interrupts = <19>;
-				clocks = <&clocks CLK_PDMA0>;
-				clock-names = "apb_pclk";
-				#dma-cells = <1>;
-				#dma-channels = <8>;
-				#dma-requests = <32>;
-			};
+		pdma0: dma@e0900000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0xe0900000 0x1000>;
+			interrupt-parent = <&vic0>;
+			interrupts = <19>;
+			clocks = <&clocks CLK_PDMA0>;
+			clock-names = "apb_pclk";
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
+		};
 
-			pdma1: dma@e0a00000 {
-				compatible = "arm,pl330", "arm,primecell";
-				reg = <0xe0a00000 0x1000>;
-				interrupt-parent = <&vic0>;
-				interrupts = <20>;
-				clocks = <&clocks CLK_PDMA1>;
-				clock-names = "apb_pclk";
-				#dma-cells = <1>;
-				#dma-channels = <8>;
-				#dma-requests = <32>;
-			};
+		pdma1: dma@e0a00000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0xe0a00000 0x1000>;
+			interrupt-parent = <&vic0>;
+			interrupts = <20>;
+			clocks = <&clocks CLK_PDMA1>;
+			clock-names = "apb_pclk";
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
 		};
 
 		adc: adc@e1700000 {
@@ -241,43 +223,36 @@ i2c2: i2c@e1a00000 {
 			status = "disabled";
 		};
 
-		audio-subsystem {
-			compatible = "samsung,s5pv210-audss", "simple-bus";
-			#address-cells = <1>;
-			#size-cells = <1>;
-			ranges;
-
-			clk_audss: clock-controller@eee10000 {
-				compatible = "samsung,s5pv210-audss-clock";
-				reg = <0xeee10000 0x1000>;
-				clock-names = "hclk", "xxti",
-						"fout_epll",
-						"sclk_audio0";
-				clocks = <&clocks DOUT_HCLKP>, <&xxti>,
-						<&clocks FOUT_EPLL>,
-						<&clocks SCLK_AUDIO0>;
-				#clock-cells = <1>;
-			};
+		clk_audss: clock-controller@eee10000 {
+			compatible = "samsung,s5pv210-audss-clock";
+			reg = <0xeee10000 0x1000>;
+			clock-names = "hclk", "xxti",
+				      "fout_epll",
+				      "sclk_audio0";
+			clocks = <&clocks DOUT_HCLKP>, <&xxti>,
+				 <&clocks FOUT_EPLL>,
+				 <&clocks SCLK_AUDIO0>;
+			#clock-cells = <1>;
+		};
 
-			i2s0: i2s@eee30000 {
-				compatible = "samsung,s5pv210-i2s";
-				reg = <0xeee30000 0x1000>;
-				interrupt-parent = <&vic2>;
-				interrupts = <16>;
-				dma-names = "rx", "tx", "tx-sec";
-				dmas = <&pdma1 9>, <&pdma1 10>, <&pdma1 11>;
-				clock-names = "iis",
-						"i2s_opclk0",
-						"i2s_opclk1";
-				clocks = <&clk_audss CLK_I2S>,
-						<&clk_audss CLK_I2S>,
-						<&clk_audss CLK_DOUT_AUD_BUS>;
-				samsung,idma-addr = <0xc0010000>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&i2s0_bus>;
-				#sound-dai-cells = <0>;
-				status = "disabled";
-			};
+		i2s0: i2s@eee30000 {
+			compatible = "samsung,s5pv210-i2s";
+			reg = <0xeee30000 0x1000>;
+			interrupt-parent = <&vic2>;
+			interrupts = <16>;
+			dma-names = "rx", "tx", "tx-sec";
+			dmas = <&pdma1 9>, <&pdma1 10>, <&pdma1 11>;
+			clock-names = "iis",
+				      "i2s_opclk0",
+				      "i2s_opclk1";
+			clocks = <&clk_audss CLK_I2S>,
+				 <&clk_audss CLK_I2S>,
+				 <&clk_audss CLK_DOUT_AUD_BUS>;
+			samsung,idma-addr = <0xc0010000>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2s0_bus>;
+			#sound-dai-cells = <0>;
+			status = "disabled";
 		};
 
 		i2s1: i2s@e2100000 {
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index 303f75a3baec..58d293b63581 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -160,7 +160,8 @@ CONFIG_SENSORS_TMP421=y
 CONFIG_SENSORS_W83773G=y
 CONFIG_WATCHDOG_SYSFS=y
 CONFIG_MEDIA_SUPPORT=y
-CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_SUPPORT_FILTER=y
+CONFIG_MEDIA_PLATFORM_SUPPORT=y
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_VIDEO_ASPEED=y
 CONFIG_DRM=y
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index b0d056d49abe..cc2449ed6e6d 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -175,7 +175,8 @@ CONFIG_SENSORS_TMP421=y
 CONFIG_SENSORS_W83773G=y
 CONFIG_WATCHDOG_SYSFS=y
 CONFIG_MEDIA_SUPPORT=y
-CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_SUPPORT_FILTER=y
+CONFIG_MEDIA_PLATFORM_SUPPORT=y
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_VIDEO_ASPEED=y
 CONFIG_DRM=y
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index 7a4853b1213a..08660ae9dcbc 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -683,6 +683,40 @@ static void disable_single_step(struct perf_event *bp)
 	arch_install_hw_breakpoint(bp);
 }
 
+/*
+ * Arm32 hardware does not always report a watchpoint hit address that matches
+ * one of the watchpoints set. It can also report an address "near" the
+ * watchpoint if a single instruction access both watched and unwatched
+ * addresses. There is no straight-forward way, short of disassembling the
+ * offending instruction, to map that address back to the watchpoint. This
+ * function computes the distance of the memory access from the watchpoint as a
+ * heuristic for the likelyhood that a given access triggered the watchpoint.
+ *
+ * See this same function in the arm64 platform code, which has the same
+ * problem.
+ *
+ * The function returns the distance of the address from the bytes watched by
+ * the watchpoint. In case of an exact match, it returns 0.
+ */
+static u32 get_distance_from_watchpoint(unsigned long addr, u32 val,
+					struct arch_hw_breakpoint_ctrl *ctrl)
+{
+	u32 wp_low, wp_high;
+	u32 lens, lene;
+
+	lens = __ffs(ctrl->len);
+	lene = __fls(ctrl->len);
+
+	wp_low = val + lens;
+	wp_high = val + lene;
+	if (addr < wp_low)
+		return wp_low - addr;
+	else if (addr > wp_high)
+		return addr - wp_high;
+	else
+		return 0;
+}
+
 static int watchpoint_fault_on_uaccess(struct pt_regs *regs,
 				       struct arch_hw_breakpoint *info)
 {
@@ -692,23 +726,25 @@ static int watchpoint_fault_on_uaccess(struct pt_regs *regs,
 static void watchpoint_handler(unsigned long addr, unsigned int fsr,
 			       struct pt_regs *regs)
 {
-	int i, access;
-	u32 val, ctrl_reg, alignment_mask;
+	int i, access, closest_match = 0;
+	u32 min_dist = -1, dist;
+	u32 val, ctrl_reg;
 	struct perf_event *wp, **slots;
 	struct arch_hw_breakpoint *info;
 	struct arch_hw_breakpoint_ctrl ctrl;
 
 	slots = this_cpu_ptr(wp_on_reg);
 
+	/*
+	 * Find all watchpoints that match the reported address. If no exact
+	 * match is found. Attribute the hit to the closest watchpoint.
+	 */
+	rcu_read_lock();
 	for (i = 0; i < core_num_wrps; ++i) {
-		rcu_read_lock();
-
 		wp = slots[i];
-
 		if (wp == NULL)
-			goto unlock;
+			continue;
 
-		info = counter_arch_bp(wp);
 		/*
 		 * The DFAR is an unknown value on debug architectures prior
 		 * to 7.1. Since we only allow a single watchpoint on these
@@ -717,33 +753,31 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
 		 */
 		if (debug_arch < ARM_DEBUG_ARCH_V7_1) {
 			BUG_ON(i > 0);
+			info = counter_arch_bp(wp);
 			info->trigger = wp->attr.bp_addr;
 		} else {
-			if (info->ctrl.len == ARM_BREAKPOINT_LEN_8)
-				alignment_mask = 0x7;
-			else
-				alignment_mask = 0x3;
-
-			/* Check if the watchpoint value matches. */
-			val = read_wb_reg(ARM_BASE_WVR + i);
-			if (val != (addr & ~alignment_mask))
-				goto unlock;
-
-			/* Possible match, check the byte address select. */
-			ctrl_reg = read_wb_reg(ARM_BASE_WCR + i);
-			decode_ctrl_reg(ctrl_reg, &ctrl);
-			if (!((1 << (addr & alignment_mask)) & ctrl.len))
-				goto unlock;
-
 			/* Check that the access type matches. */
 			if (debug_exception_updates_fsr()) {
 				access = (fsr & ARM_FSR_ACCESS_MASK) ?
 					  HW_BREAKPOINT_W : HW_BREAKPOINT_R;
 				if (!(access & hw_breakpoint_type(wp)))
-					goto unlock;
+					continue;
 			}
 
+			val = read_wb_reg(ARM_BASE_WVR + i);
+			ctrl_reg = read_wb_reg(ARM_BASE_WCR + i);
+			decode_ctrl_reg(ctrl_reg, &ctrl);
+			dist = get_distance_from_watchpoint(addr, val, &ctrl);
+			if (dist < min_dist) {
+				min_dist = dist;
+				closest_match = i;
+			}
+			/* Is this an exact match? */
+			if (dist != 0)
+				continue;
+
 			/* We have a winner. */
+			info = counter_arch_bp(wp);
 			info->trigger = addr;
 		}
 
@@ -765,13 +799,23 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
 		 * we can single-step over the watchpoint trigger.
 		 */
 		if (!is_default_overflow_handler(wp))
-			goto unlock;
-
+			continue;
 step:
 		enable_single_step(wp, instruction_pointer(regs));
-unlock:
-		rcu_read_unlock();
 	}
+
+	if (min_dist > 0 && min_dist != -1) {
+		/* No exact match found. */
+		wp = slots[closest_match];
+		info = counter_arch_bp(wp);
+		info->trigger = addr;
+		pr_debug("watchpoint fired: address = 0x%x\n", info->trigger);
+		perf_bp_event(wp, regs);
+		if (is_default_overflow_handler(wp))
+			enable_single_step(wp, instruction_pointer(regs));
+	}
+
+	rcu_read_unlock();
 }
 
 static void watchpoint_single_step_handler(unsigned long pc)
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 301e572651c0..790c87ee7271 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -241,6 +241,7 @@ config SAMSUNG_PM_DEBUG
 	depends on PM && DEBUG_KERNEL
 	depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
 	depends on DEBUG_EXYNOS_UART || DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART
+	depends on DEBUG_LL && MMU
 	help
 	  Say Y here if you want verbose debugging from the PM Suspend and
 	  Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst>
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index cd58f8495c45..5b433a7f975b 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -54,6 +54,7 @@ config ARCH_BCM_IPROC
 config ARCH_BERLIN
 	bool "Marvell Berlin SoC Family"
 	select DW_APB_ICTL
+	select DW_APB_TIMER_OF
 	select GPIOLIB
 	select PINCTRL
 	help
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7-emmc.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7-emmc.dts
index 03733fd92732..215d2f702623 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7-emmc.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7-emmc.dts
@@ -20,17 +20,23 @@ / {
 	compatible = "globalscale,espressobin-v7-emmc", "globalscale,espressobin-v7",
 		     "globalscale,espressobin", "marvell,armada3720",
 		     "marvell,armada3710";
+
+	aliases {
+		/* ethernet1 is wan port */
+		ethernet1 = &switch0port3;
+		ethernet3 = &switch0port1;
+	};
 };
 
 &switch0 {
 	ports {
-		port@1 {
+		switch0port1: port@1 {
 			reg = <1>;
 			label = "lan1";
 			phy-handle = <&switch0phy0>;
 		};
 
-		port@3 {
+		switch0port3: port@3 {
 			reg = <3>;
 			label = "wan";
 			phy-handle = <&switch0phy2>;
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7.dts
index 8570c5f47d7d..b6f4af8ebafb 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7.dts
@@ -19,17 +19,23 @@ / {
 	model = "Globalscale Marvell ESPRESSOBin Board V7";
 	compatible = "globalscale,espressobin-v7", "globalscale,espressobin",
 		     "marvell,armada3720", "marvell,armada3710";
+
+	aliases {
+		/* ethernet1 is wan port */
+		ethernet1 = &switch0port3;
+		ethernet3 = &switch0port1;
+	};
 };
 
 &switch0 {
 	ports {
-		port@1 {
+		switch0port1: port@1 {
 			reg = <1>;
 			label = "lan1";
 			phy-handle = <&switch0phy0>;
 		};
 
-		port@3 {
+		switch0port3: port@3 {
 			reg = <3>;
 			label = "wan";
 			phy-handle = <&switch0phy2>;
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
index b97218c72727..0775c16e0ec8 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
@@ -13,6 +13,10 @@
 / {
 	aliases {
 		ethernet0 = &eth0;
+		/* for dsa slave device */
+		ethernet1 = &switch0port1;
+		ethernet2 = &switch0port2;
+		ethernet3 = &switch0port3;
 		serial0 = &uart0;
 		serial1 = &uart1;
 	};
@@ -120,7 +124,7 @@ ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			port@0 {
+			switch0port0: port@0 {
 				reg = <0>;
 				label = "cpu";
 				ethernet = <&eth0>;
@@ -131,19 +135,19 @@ fixed-link {
 				};
 			};
 
-			port@1 {
+			switch0port1: port@1 {
 				reg = <1>;
 				label = "wan";
 				phy-handle = <&switch0phy0>;
 			};
 
-			port@2 {
+			switch0port2: port@2 {
 				reg = <2>;
 				label = "lan0";
 				phy-handle = <&switch0phy1>;
 			};
 
-			port@3 {
+			switch0port3: port@3 {
 				reg = <3>;
 				label = "lan1";
 				phy-handle = <&switch0phy2>;
diff --git a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
index 4032b7478f04..791f254ac3f8 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
@@ -221,7 +221,12 @@ pmi8994_regulators: pmi8994-regulators {
 };
 
 &sdhc1 {
-	status = "okay";
+	/* There is an issue with the eMMC causing permanent
+	 * damage to the card if a quirk isn't addressed.
+	 * Until it's fixed, disable the MMC so as not to brick
+	 * devices.
+	 */
+	status = "disabled";
 
 	/* Downstream pushes 2.95V to the sdhci device,
 	 * but upstream driver REALLY wants to make vmmc 1.8v
diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index ff88af8e39d3..a2e085db87c5 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -469,6 +469,7 @@ &sdhi2 {
 	mmc-hs200-1_8v;
 	mmc-hs400-1_8v;
 	non-removable;
+	full-pwr-cycle-in-suspend;
 	status = "okay";
 };
 
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 905c2b87e05a..34675109921e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -231,6 +231,7 @@ enum vcpu_sysreg {
 #define cp14_DBGWCR0	(DBGWCR0_EL1 * 2)
 #define cp14_DBGWVR0	(DBGWVR0_EL1 * 2)
 #define cp14_DBGDCCINT	(MDCCINT_EL1 * 2)
+#define cp14_DBGVCR	(DBGVCR32_EL2 * 2)
 
 #define NR_COPRO_REGS	(NR_SYS_REGS * 2)
 
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index 626ad01e83bf..dd870390d639 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -25,6 +25,9 @@ const struct cpumask *cpumask_of_node(int node);
 /* Returns a pointer to the cpumask of CPUs on Node 'node'. */
 static inline const struct cpumask *cpumask_of_node(int node)
 {
+	if (node == NUMA_NO_NODE)
+		return cpu_all_mask;
+
 	return node_to_cpumask_map[node];
 }
 #endif
diff --git a/arch/arm64/kernel/efi-header.S b/arch/arm64/kernel/efi-header.S
index df67c0f2a077..a71844fb923e 100644
--- a/arch/arm64/kernel/efi-header.S
+++ b/arch/arm64/kernel/efi-header.S
@@ -147,6 +147,6 @@ efi_debug_entry:
 	 * correctly at this alignment, we must ensure that .text is
 	 * placed at a 4k boundary in the Image to begin with.
 	 */
-	.align 12
+	.balign	SEGMENT_ALIGN
 efi_header_end:
 	.endm
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 0801a0f3c156..ff1dd1dbfe64 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -36,21 +36,23 @@ void store_cpu_topology(unsigned int cpuid)
 	if (mpidr & MPIDR_UP_BITMASK)
 		return;
 
-	/* Create cpu topology mapping based on MPIDR. */
-	if (mpidr & MPIDR_MT_BITMASK) {
-		/* Multiprocessor system : Multi-threads per core */
-		cpuid_topo->thread_id  = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-		cpuid_topo->core_id    = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-		cpuid_topo->package_id = MPIDR_AFFINITY_LEVEL(mpidr, 2) |
-					 MPIDR_AFFINITY_LEVEL(mpidr, 3) << 8;
-	} else {
-		/* Multiprocessor system : Single-thread per core */
-		cpuid_topo->thread_id  = -1;
-		cpuid_topo->core_id    = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-		cpuid_topo->package_id = MPIDR_AFFINITY_LEVEL(mpidr, 1) |
-					 MPIDR_AFFINITY_LEVEL(mpidr, 2) << 8 |
-					 MPIDR_AFFINITY_LEVEL(mpidr, 3) << 16;
-	}
+	/*
+	 * This would be the place to create cpu topology based on MPIDR.
+	 *
+	 * However, it cannot be trusted to depict the actual topology; some
+	 * pieces of the architecture enforce an artificial cap on Aff0 values
+	 * (e.g. GICv3's ICC_SGI1R_EL1 limits it to 15), leading to an
+	 * artificial cycling of Aff1, Aff2 and Aff3 values. IOW, these end up
+	 * having absolutely no relationship to the actual underlying system
+	 * topology, and cannot be reasonably used as core / package ID.
+	 *
+	 * If the MT bit is set, Aff0 *could* be used to define a thread ID, but
+	 * we still wouldn't be able to obtain a sane core ID. This means we
+	 * need to entirely ignore MPIDR for any topology deduction.
+	 */
+	cpuid_topo->thread_id  = -1;
+	cpuid_topo->core_id    = cpuid;
+	cpuid_topo->package_id = cpu_to_node(cpuid);
 
 	pr_debug("CPU%u: cluster %d core %d thread %d mpidr %#016llx\n",
 		 cpuid, cpuid_topo->package_id, cpuid_topo->core_id,
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index 550dfa3e53cd..b8e7f6c4524f 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -31,7 +31,7 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 				val = SMCCC_RET_SUCCESS;
 				break;
 			case KVM_BP_HARDEN_NOT_REQUIRED:
-				val = SMCCC_RET_NOT_REQUIRED;
+				val = SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED;
 				break;
 			}
 			break;
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 077293b5115f..de5a5a80ae99 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1881,9 +1881,9 @@ static const struct sys_reg_desc cp14_regs[] = {
 	{ Op1( 0), CRn( 0), CRm( 1), Op2( 0), trap_raz_wi },
 	DBG_BCR_BVR_WCR_WVR(1),
 	/* DBGDCCINT */
-	{ Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32 },
+	{ Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32, NULL, cp14_DBGDCCINT },
 	/* DBGDSCRext */
-	{ Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32 },
+	{ Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32, NULL, cp14_DBGDSCRext },
 	DBG_BCR_BVR_WCR_WVR(2),
 	/* DBGDTR[RT]Xint */
 	{ Op1( 0), CRn( 0), CRm( 3), Op2( 0), trap_raz_wi },
@@ -1898,7 +1898,7 @@ static const struct sys_reg_desc cp14_regs[] = {
 	{ Op1( 0), CRn( 0), CRm( 6), Op2( 2), trap_raz_wi },
 	DBG_BCR_BVR_WCR_WVR(6),
 	/* DBGVCR */
-	{ Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32 },
+	{ Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32, NULL, cp14_DBGVCR },
 	DBG_BCR_BVR_WCR_WVR(7),
 	DBG_BCR_BVR_WCR_WVR(8),
 	DBG_BCR_BVR_WCR_WVR(9),
diff --git a/arch/arm64/lib/memcpy.S b/arch/arm64/lib/memcpy.S
index e0bf83d556f2..dc8d2a216a6e 100644
--- a/arch/arm64/lib/memcpy.S
+++ b/arch/arm64/lib/memcpy.S
@@ -56,9 +56,8 @@
 	stp \reg1, \reg2, [\ptr], \val
 	.endm
 
-	.weak memcpy
 SYM_FUNC_START_ALIAS(__memcpy)
-SYM_FUNC_START_PI(memcpy)
+SYM_FUNC_START_WEAK_PI(memcpy)
 #include "copy_template.S"
 	ret
 SYM_FUNC_END_PI(memcpy)
diff --git a/arch/arm64/lib/memmove.S b/arch/arm64/lib/memmove.S
index 02cda2e33bde..1035dce4bdaf 100644
--- a/arch/arm64/lib/memmove.S
+++ b/arch/arm64/lib/memmove.S
@@ -45,9 +45,8 @@ C_h	.req	x12
 D_l	.req	x13
 D_h	.req	x14
 
-	.weak memmove
 SYM_FUNC_START_ALIAS(__memmove)
-SYM_FUNC_START_PI(memmove)
+SYM_FUNC_START_WEAK_PI(memmove)
 	cmp	dstin, src
 	b.lo	__memcpy
 	add	tmp1, src, count
diff --git a/arch/arm64/lib/memset.S b/arch/arm64/lib/memset.S
index 77c3c7ba0084..a9c1c9a01ea9 100644
--- a/arch/arm64/lib/memset.S
+++ b/arch/arm64/lib/memset.S
@@ -42,9 +42,8 @@ dst		.req	x8
 tmp3w		.req	w9
 tmp3		.req	x9
 
-	.weak memset
 SYM_FUNC_START_ALIAS(__memset)
-SYM_FUNC_START_PI(memset)
+SYM_FUNC_START_WEAK_PI(memset)
 	mov	dst, dstin	/* Preserve return value.  */
 	and	A_lw, val, #255
 	orr	A_lw, A_lw, A_lw, lsl #8
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 73f8b49d485c..88e51aade0da 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -46,7 +46,11 @@ EXPORT_SYMBOL(node_to_cpumask_map);
  */
 const struct cpumask *cpumask_of_node(int node)
 {
-	if (WARN_ON(node >= nr_node_ids))
+
+	if (node == NUMA_NO_NODE)
+		return cpu_all_mask;
+
+	if (WARN_ON(node < 0 || node >= nr_node_ids))
 		return cpu_none_mask;
 
 	if (WARN_ON(node_to_cpumask_map[node] == NULL))
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 1a8df6669eee..18d6008b151f 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -41,7 +41,7 @@ obj-y				+= esi_stub.o	# must be in kernel proper
 endif
 obj-$(CONFIG_INTEL_IOMMU)	+= pci-dma.o
 
-obj-$(CONFIG_BINFMT_ELF)	+= elfcore.o
+obj-$(CONFIG_ELF_CORE)		+= elfcore.o
 
 # fp_emulate() expects f2-f5,f16-f31 to contain the user-level state.
 CFLAGS_traps.o  += -mfixed-range=f2-f5,f16-f31
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index 7a7df944d798..fc1ff8a4d7de 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -396,83 +396,9 @@ static void kretprobe_trampoline(void)
 {
 }
 
-/*
- * At this point the target function has been tricked into
- * returning into our trampoline.  Lookup the associated instance
- * and then:
- *    - call the handler function
- *    - cleanup by marking the instance as unused
- *    - long jump back to the original return address
- */
 int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 {
-	struct kretprobe_instance *ri = NULL;
-	struct hlist_head *head, empty_rp;
-	struct hlist_node *tmp;
-	unsigned long flags, orig_ret_address = 0;
-	unsigned long trampoline_address =
-		((struct fnptr *)kretprobe_trampoline)->ip;
-
-	INIT_HLIST_HEAD(&empty_rp);
-	kretprobe_hash_lock(current, &head, &flags);
-
-	/*
-	 * It is possible to have multiple instances associated with a given
-	 * task either because an multiple functions in the call path
-	 * have a return probe installed on them, and/or more than one return
-	 * return probe was registered for a target function.
-	 *
-	 * We can handle this because:
-	 *     - instances are always inserted at the head of the list
-	 *     - when multiple return probes are registered for the same
-	 *       function, the first instance's ret_addr will point to the
-	 *       real return address, and all the rest will point to
-	 *       kretprobe_trampoline
-	 */
-	hlist_for_each_entry_safe(ri, tmp, head, hlist) {
-		if (ri->task != current)
-			/* another task is sharing our hash bucket */
-			continue;
-
-		orig_ret_address = (unsigned long)ri->ret_addr;
-		if (orig_ret_address != trampoline_address)
-			/*
-			 * This is the real return address. Any other
-			 * instances associated with this task are for
-			 * other calls deeper on the call stack
-			 */
-			break;
-	}
-
-	regs->cr_iip = orig_ret_address;
-
-	hlist_for_each_entry_safe(ri, tmp, head, hlist) {
-		if (ri->task != current)
-			/* another task is sharing our hash bucket */
-			continue;
-
-		if (ri->rp && ri->rp->handler)
-			ri->rp->handler(ri, regs);
-
-		orig_ret_address = (unsigned long)ri->ret_addr;
-		recycle_rp_inst(ri, &empty_rp);
-
-		if (orig_ret_address != trampoline_address)
-			/*
-			 * This is the real return address. Any other
-			 * instances associated with this task are for
-			 * other calls deeper on the call stack
-			 */
-			break;
-	}
-	kretprobe_assert(ri, orig_ret_address, trampoline_address);
-
-	kretprobe_hash_unlock(current, &flags);
-
-	hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
-		hlist_del(&ri->hlist);
-		kfree(ri);
-	}
+	regs->cr_iip = __kretprobe_trampoline_handler(regs, kretprobe_trampoline, NULL);
 	/*
 	 * By returning a non-zero value, we are telling
 	 * kprobe_handler() that we don't want the post_handler
@@ -485,6 +411,7 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
 	ri->ret_addr = (kprobe_opcode_t *)regs->b0;
+	ri->fp = NULL;
 
 	/* Replace the return addr with trampoline addr */
 	regs->b0 = ((struct fnptr *)kretprobe_trampoline)->ip;
diff --git a/arch/mips/configs/qi_lb60_defconfig b/arch/mips/configs/qi_lb60_defconfig
index 81bfbee72b0c..9c2c183085d1 100644
--- a/arch/mips/configs/qi_lb60_defconfig
+++ b/arch/mips/configs/qi_lb60_defconfig
@@ -8,6 +8,7 @@ CONFIG_EMBEDDED=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_SLAB=y
 CONFIG_MACH_INGENIC=y
+CONFIG_JZ4740_QI_LB60=y
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
 CONFIG_MODULES=y
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index d4e868b828e5..eaad0ed4b523 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -6,7 +6,7 @@
  * for more details.
  *
  * Copyright (C) 1998 Harald Koerfgen
- * Copyright (C) 2000, 2001, 2002, 2003, 2005  Maciej W. Rozycki
+ * Copyright (C) 2000, 2001, 2002, 2003, 2005, 2020  Maciej W. Rozycki
  */
 #include <linux/console.h>
 #include <linux/export.h>
@@ -15,6 +15,7 @@
 #include <linux/ioport.h>
 #include <linux/irq.h>
 #include <linux/irqnr.h>
+#include <linux/memblock.h>
 #include <linux/param.h>
 #include <linux/percpu-defs.h>
 #include <linux/sched.h>
@@ -22,6 +23,7 @@
 #include <linux/types.h>
 #include <linux/pm.h>
 
+#include <asm/addrspace.h>
 #include <asm/bootinfo.h>
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
@@ -29,7 +31,9 @@
 #include <asm/irq.h>
 #include <asm/irq_cpu.h>
 #include <asm/mipsregs.h>
+#include <asm/page.h>
 #include <asm/reboot.h>
+#include <asm/sections.h>
 #include <asm/time.h>
 #include <asm/traps.h>
 #include <asm/wbflush.h>
@@ -146,6 +150,9 @@ void __init plat_mem_setup(void)
 
 	ioport_resource.start = ~0UL;
 	ioport_resource.end = 0UL;
+
+	/* Stay away from the firmware working memory area for now. */
+	memblock_reserve(PHYS_OFFSET, __pa_symbol(&_text) - PHYS_OFFSET);
 }
 
 /*
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2b15b4870565..aaf069c72aa1 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -148,6 +148,7 @@ config PPC
 	select ARCH_USE_QUEUED_RWLOCKS		if PPC_QUEUED_SPINLOCKS
 	select ARCH_USE_QUEUED_SPINLOCKS	if PPC_QUEUED_SPINLOCKS
 	select ARCH_WANT_IPC_PARSE_VERSION
+	select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
 	select ARCH_WEAK_RELEASE_ACQUIRE
 	select BINFMT_ELF
 	select BUILDTIME_TABLE_SORT
@@ -1000,6 +1001,19 @@ config PPC_SECVAR_SYSFS
 	  read/write operations on these variables. Say Y if you have
 	  secure boot enabled and want to expose variables to userspace.
 
+config PPC_RTAS_FILTER
+	bool "Enable filtering of RTAS syscalls"
+	default y
+	depends on PPC_RTAS
+	help
+	  The RTAS syscall API has security issues that could be used to
+	  compromise system integrity. This option enforces restrictions on the
+	  RTAS calls and arguments passed by userspace programs to mitigate
+	  these issues.
+
+	  Say Y unless you know what you are doing and the filter is causing
+	  problems for you.
+
 endmenu
 
 config ISA_DMA_API
diff --git a/arch/powerpc/include/asm/drmem.h b/arch/powerpc/include/asm/drmem.h
index 030a19d92213..bf2402fed3e0 100644
--- a/arch/powerpc/include/asm/drmem.h
+++ b/arch/powerpc/include/asm/drmem.h
@@ -20,7 +20,7 @@ struct drmem_lmb {
 struct drmem_lmb_info {
 	struct drmem_lmb        *lmbs;
 	int                     n_lmbs;
-	u32                     lmb_size;
+	u64                     lmb_size;
 };
 
 extern struct drmem_lmb_info *drmem_info;
@@ -80,7 +80,7 @@ struct of_drconf_cell_v2 {
 #define DRCONF_MEM_RESERVED	0x00000080
 #define DRCONF_MEM_HOTREMOVABLE	0x00000100
 
-static inline u32 drmem_lmb_size(void)
+static inline u64 drmem_lmb_size(void)
 {
 	return drmem_info->lmb_size;
 }
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index 7f3658a97384..e02aa793420b 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -244,7 +244,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
  */
 static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
 {
-	switch_mm(prev, next, current);
+	switch_mm_irqs_off(prev, next, current);
 }
 
 /* We don't currently use enter_lazy_tlb() for anything */
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index f3ab94d73936..a5a612deef66 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -274,14 +274,8 @@ __secondary_hold_acknowledge:
 	DO_KVM  0x200
 MachineCheck:
 	EXCEPTION_PROLOG_0
-#ifdef CONFIG_VMAP_STACK
-	li	r11, MSR_KERNEL & ~(MSR_IR | MSR_RI) /* can take DTLB miss */
-	mtmsr	r11
-	isync
-#endif
 #ifdef CONFIG_PPC_CHRP
 	mfspr	r11, SPRN_SPRG_THREAD
-	tovirt_vmstack r11, r11
 	lwz	r11, RTAS_SP(r11)
 	cmpwi	cr1, r11, 0
 	bne	cr1, 7f
@@ -1002,7 +996,7 @@ BEGIN_MMU_FTR_SECTION
 END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
 	blr
 
-load_segment_registers:
+_GLOBAL(load_segment_registers)
 	li	r0, NUM_USER_SEGMENTS /* load up user segment register values */
 	mtctr	r0		/* for context 0 */
 	li	r3, 0		/* Kp = 0, Ks = 0, VSID = 0 */
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h
index 9abec6cd099c..cc36998c5541 100644
--- a/arch/powerpc/kernel/head_32.h
+++ b/arch/powerpc/kernel/head_32.h
@@ -40,48 +40,52 @@
 
 .macro EXCEPTION_PROLOG_1 for_rtas=0
 #ifdef CONFIG_VMAP_STACK
-	.ifeq	\for_rtas
-	li	r11, MSR_KERNEL & ~(MSR_IR | MSR_RI) /* can take DTLB miss */
-	mtmsr	r11
-	isync
-	.endif
-	subi	r11, r1, INT_FRAME_SIZE		/* use r1 if kernel */
+	mr	r11, r1
+	subi	r1, r1, INT_FRAME_SIZE		/* use r1 if kernel */
+	beq	1f
+	mfspr	r1,SPRN_SPRG_THREAD
+	lwz	r1,TASK_STACK-THREAD(r1)
+	addi	r1, r1, THREAD_SIZE - INT_FRAME_SIZE
 #else
-	tophys(r11,r1)			/* use tophys(r1) if kernel */
-	subi	r11, r11, INT_FRAME_SIZE	/* alloc exc. frame */
-#endif
+	subi	r11, r1, INT_FRAME_SIZE		/* use r1 if kernel */
 	beq	1f
 	mfspr	r11,SPRN_SPRG_THREAD
-	tovirt_vmstack r11, r11
 	lwz	r11,TASK_STACK-THREAD(r11)
 	addi	r11, r11, THREAD_SIZE - INT_FRAME_SIZE
-	tophys_novmstack r11, r11
+#endif
 1:
+	tophys_novmstack r11, r11
 #ifdef CONFIG_VMAP_STACK
-	mtcrf	0x7f, r11
+	mtcrf	0x7f, r1
 	bt	32 - THREAD_ALIGN_SHIFT, stack_overflow
 #endif
 .endm
 
 .macro EXCEPTION_PROLOG_2 handle_dar_dsisr=0
-#if defined(CONFIG_VMAP_STACK) && defined(CONFIG_PPC_BOOK3S)
-BEGIN_MMU_FTR_SECTION
+#ifdef CONFIG_VMAP_STACK
 	mtcr	r10
-FTR_SECTION_ELSE
-	stw	r10, _CCR(r11)
-ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_HPTE_TABLE)
+	li	r10, MSR_KERNEL & ~(MSR_IR | MSR_RI) /* can take DTLB miss */
+	mtmsr	r10
+	isync
 #else
 	stw	r10,_CCR(r11)		/* save registers */
 #endif
 	mfspr	r10, SPRN_SPRG_SCRATCH0
+#ifdef CONFIG_VMAP_STACK
+	stw	r11,GPR1(r1)
+	stw	r11,0(r1)
+	mr	r11, r1
+#else
+	stw	r1,GPR1(r11)
+	stw	r1,0(r11)
+	tovirt(r1, r11)		/* set new kernel sp */
+#endif
 	stw	r12,GPR12(r11)
 	stw	r9,GPR9(r11)
 	stw	r10,GPR10(r11)
-#if defined(CONFIG_VMAP_STACK) && defined(CONFIG_PPC_BOOK3S)
-BEGIN_MMU_FTR_SECTION
+#ifdef CONFIG_VMAP_STACK
 	mfcr	r10
 	stw	r10, _CCR(r11)
-END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE)
 #endif
 	mfspr	r12,SPRN_SPRG_SCRATCH1
 	stw	r12,GPR11(r11)
@@ -97,19 +101,12 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE)
 	stw	r10, _DSISR(r11)
 	.endif
 	lwz	r9, SRR1(r12)
-#if defined(CONFIG_VMAP_STACK) && defined(CONFIG_PPC_BOOK3S)
-BEGIN_MMU_FTR_SECTION
 	andi.	r10, r9, MSR_PR
-END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE)
-#endif
 	lwz	r12, SRR0(r12)
 #else
 	mfspr	r12,SPRN_SRR0
 	mfspr	r9,SPRN_SRR1
 #endif
-	stw	r1,GPR1(r11)
-	stw	r1,0(r11)
-	tovirt_novmstack r1, r11	/* set new kernel sp */
 #ifdef CONFIG_40x
 	rlwinm	r9,r9,0,14,12		/* clear MSR_WE (necessary?) */
 #else
@@ -327,20 +324,19 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE)
 .macro vmap_stack_overflow_exception
 #ifdef CONFIG_VMAP_STACK
 #ifdef CONFIG_SMP
-	mfspr	r11, SPRN_SPRG_THREAD
-	tovirt(r11, r11)
-	lwz	r11, TASK_CPU - THREAD(r11)
-	slwi	r11, r11, 3
-	addis	r11, r11, emergency_ctx@ha
+	mfspr	r1, SPRN_SPRG_THREAD
+	lwz	r1, TASK_CPU - THREAD(r1)
+	slwi	r1, r1, 3
+	addis	r1, r1, emergency_ctx@ha
 #else
-	lis	r11, emergency_ctx@ha
+	lis	r1, emergency_ctx@ha
 #endif
-	lwz	r11, emergency_ctx@l(r11)
-	cmpwi	cr1, r11, 0
+	lwz	r1, emergency_ctx@l(r1)
+	cmpwi	cr1, r1, 0
 	bne	cr1, 1f
-	lis	r11, init_thread_union@ha
-	addi	r11, r11, init_thread_union@l
-1:	addi	r11, r11, THREAD_SIZE - INT_FRAME_SIZE
+	lis	r1, init_thread_union@ha
+	addi	r1, r1, init_thread_union@l
+1:	addi	r1, r1, THREAD_SIZE - INT_FRAME_SIZE
 	EXCEPTION_PROLOG_2
 	SAVE_NVGPRS(r11)
 	addi	r3, r1, STACK_FRAME_OVERHEAD
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index ada59f6c4298..63702c0badb9 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.c
@@ -591,12 +591,11 @@ EXPORT_SYMBOL_GPL(machine_check_print_event_info);
 long notrace machine_check_early(struct pt_regs *regs)
 {
 	long handled = 0;
-	bool nested = in_nmi();
 	u8 ftrace_enabled = this_cpu_get_ftrace_enabled();
 
 	this_cpu_set_ftrace_enabled(0);
-
-	if (!nested)
+	/* Do not use nmi_enter/exit for pseries hpte guest */
+	if (radix_enabled() || !firmware_has_feature(FW_FEATURE_LPAR))
 		nmi_enter();
 
 	hv_nmi_check_nonrecoverable(regs);
@@ -607,7 +606,7 @@ long notrace machine_check_early(struct pt_regs *regs)
 	if (ppc_md.machine_check_early)
 		handled = ppc_md.machine_check_early(regs);
 
-	if (!nested)
+	if (radix_enabled() || !firmware_has_feature(FW_FEATURE_LPAR))
 		nmi_exit();
 
 	this_cpu_set_ftrace_enabled(ftrace_enabled);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 73a57043ee66..3f2dc0675ea7 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1256,15 +1256,17 @@ struct task_struct *__switch_to(struct task_struct *prev,
 		restore_math(current->thread.regs);
 
 		/*
-		 * The copy-paste buffer can only store into foreign real
-		 * addresses, so unprivileged processes can not see the
-		 * data or use it in any way unless they have foreign real
-		 * mappings. If the new process has the foreign real address
-		 * mappings, we must issue a cp_abort to clear any state and
-		 * prevent snooping, corruption or a covert channel.
+		 * On POWER9 the copy-paste buffer can only paste into
+		 * foreign real addresses, so unprivileged processes can not
+		 * see the data or use it in any way unless they have
+		 * foreign real mappings. If the new process has the foreign
+		 * real address mappings, we must issue a cp_abort to clear
+		 * any state and prevent snooping, corruption or a covert
+		 * channel. ISA v3.1 supports paste into local memory.
 		 */
 		if (current->mm &&
-			atomic_read(&current->mm->context.vas_windows))
+			(cpu_has_feature(CPU_FTR_ARCH_31) ||
+			atomic_read(&current->mm->context.vas_windows)))
 			asm volatile(PPC_CP_ABORT);
 	}
 #endif /* CONFIG_PPC_BOOK3S_64 */
diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
index 8bd8d8de5c40..a570782e954b 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
@@ -217,7 +217,7 @@ long ppc_set_hwdebug(struct task_struct *child, struct ppc_hw_breakpoint *bp_inf
 		return -EIO;
 
 	brk.address = ALIGN_DOWN(bp_info->addr, HW_BREAKPOINT_SIZE);
-	brk.type = HW_BRK_TYPE_TRANSLATE;
+	brk.type = HW_BRK_TYPE_TRANSLATE | HW_BRK_TYPE_PRIV_ALL;
 	brk.len = DABR_MAX_LEN;
 	brk.hw_len = DABR_MAX_LEN;
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_READ)
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 806d554ce357..954f41676f69 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -992,6 +992,147 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
 	return NULL;
 }
 
+#ifdef CONFIG_PPC_RTAS_FILTER
+
+/*
+ * The sys_rtas syscall, as originally designed, allows root to pass
+ * arbitrary physical addresses to RTAS calls. A number of RTAS calls
+ * can be abused to write to arbitrary memory and do other things that
+ * are potentially harmful to system integrity, and thus should only
+ * be used inside the kernel and not exposed to userspace.
+ *
+ * All known legitimate users of the sys_rtas syscall will only ever
+ * pass addresses that fall within the RMO buffer, and use a known
+ * subset of RTAS calls.
+ *
+ * Accordingly, we filter RTAS requests to check that the call is
+ * permitted, and that provided pointers fall within the RMO buffer.
+ * The rtas_filters list contains an entry for each permitted call,
+ * with the indexes of the parameters which are expected to contain
+ * addresses and sizes of buffers allocated inside the RMO buffer.
+ */
+struct rtas_filter {
+	const char *name;
+	int token;
+	/* Indexes into the args buffer, -1 if not used */
+	int buf_idx1;
+	int size_idx1;
+	int buf_idx2;
+	int size_idx2;
+
+	int fixed_size;
+};
+
+static struct rtas_filter rtas_filters[] __ro_after_init = {
+	{ "ibm,activate-firmware", -1, -1, -1, -1, -1 },
+	{ "ibm,configure-connector", -1, 0, -1, 1, -1, 4096 },	/* Special cased */
+	{ "display-character", -1, -1, -1, -1, -1 },
+	{ "ibm,display-message", -1, 0, -1, -1, -1 },
+	{ "ibm,errinjct", -1, 2, -1, -1, -1, 1024 },
+	{ "ibm,close-errinjct", -1, -1, -1, -1, -1 },
+	{ "ibm,open-errinct", -1, -1, -1, -1, -1 },
+	{ "ibm,get-config-addr-info2", -1, -1, -1, -1, -1 },
+	{ "ibm,get-dynamic-sensor-state", -1, 1, -1, -1, -1 },
+	{ "ibm,get-indices", -1, 2, 3, -1, -1 },
+	{ "get-power-level", -1, -1, -1, -1, -1 },
+	{ "get-sensor-state", -1, -1, -1, -1, -1 },
+	{ "ibm,get-system-parameter", -1, 1, 2, -1, -1 },
+	{ "get-time-of-day", -1, -1, -1, -1, -1 },
+	{ "ibm,get-vpd", -1, 0, -1, 1, 2 },
+	{ "ibm,lpar-perftools", -1, 2, 3, -1, -1 },
+	{ "ibm,platform-dump", -1, 4, 5, -1, -1 },
+	{ "ibm,read-slot-reset-state", -1, -1, -1, -1, -1 },
+	{ "ibm,scan-log-dump", -1, 0, 1, -1, -1 },
+	{ "ibm,set-dynamic-indicator", -1, 2, -1, -1, -1 },
+	{ "ibm,set-eeh-option", -1, -1, -1, -1, -1 },
+	{ "set-indicator", -1, -1, -1, -1, -1 },
+	{ "set-power-level", -1, -1, -1, -1, -1 },
+	{ "set-time-for-power-on", -1, -1, -1, -1, -1 },
+	{ "ibm,set-system-parameter", -1, 1, -1, -1, -1 },
+	{ "set-time-of-day", -1, -1, -1, -1, -1 },
+	{ "ibm,suspend-me", -1, -1, -1, -1, -1 },
+	{ "ibm,update-nodes", -1, 0, -1, -1, -1, 4096 },
+	{ "ibm,update-properties", -1, 0, -1, -1, -1, 4096 },
+	{ "ibm,physical-attestation", -1, 0, 1, -1, -1 },
+};
+
+static bool in_rmo_buf(u32 base, u32 end)
+{
+	return base >= rtas_rmo_buf &&
+		base < (rtas_rmo_buf + RTAS_RMOBUF_MAX) &&
+		base <= end &&
+		end >= rtas_rmo_buf &&
+		end < (rtas_rmo_buf + RTAS_RMOBUF_MAX);
+}
+
+static bool block_rtas_call(int token, int nargs,
+			    struct rtas_args *args)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) {
+		struct rtas_filter *f = &rtas_filters[i];
+		u32 base, size, end;
+
+		if (token != f->token)
+			continue;
+
+		if (f->buf_idx1 != -1) {
+			base = be32_to_cpu(args->args[f->buf_idx1]);
+			if (f->size_idx1 != -1)
+				size = be32_to_cpu(args->args[f->size_idx1]);
+			else if (f->fixed_size)
+				size = f->fixed_size;
+			else
+				size = 1;
+
+			end = base + size - 1;
+			if (!in_rmo_buf(base, end))
+				goto err;
+		}
+
+		if (f->buf_idx2 != -1) {
+			base = be32_to_cpu(args->args[f->buf_idx2]);
+			if (f->size_idx2 != -1)
+				size = be32_to_cpu(args->args[f->size_idx2]);
+			else if (f->fixed_size)
+				size = f->fixed_size;
+			else
+				size = 1;
+			end = base + size - 1;
+
+			/*
+			 * Special case for ibm,configure-connector where the
+			 * address can be 0
+			 */
+			if (!strcmp(f->name, "ibm,configure-connector") &&
+			    base == 0)
+				return false;
+
+			if (!in_rmo_buf(base, end))
+				goto err;
+		}
+
+		return false;
+	}
+
+err:
+	pr_err_ratelimited("sys_rtas: RTAS call blocked - exploit attempt?\n");
+	pr_err_ratelimited("sys_rtas: token=0x%x, nargs=%d (called by %s)\n",
+			   token, nargs, current->comm);
+	return true;
+}
+
+#else
+
+static bool block_rtas_call(int token, int nargs,
+			    struct rtas_args *args)
+{
+	return false;
+}
+
+#endif /* CONFIG_PPC_RTAS_FILTER */
+
 /* We assume to be passed big endian arguments */
 SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
 {
@@ -1029,6 +1170,9 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
 	args.rets = &args.args[nargs];
 	memset(args.rets, 0, nret * sizeof(rtas_arg_t));
 
+	if (block_rtas_call(token, nargs, &args))
+		return -EINVAL;
+
 	/* Need to handle ibm,suspend_me call specially */
 	if (token == ibm_suspend_me_token) {
 
@@ -1090,6 +1234,9 @@ void __init rtas_initialize(void)
 	unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
 	u32 base, size, entry;
 	int no_base, no_size, no_entry;
+#ifdef CONFIG_PPC_RTAS_FILTER
+	int i;
+#endif
 
 	/* Get RTAS dev node and fill up our "rtas" structure with infos
 	 * about it.
@@ -1129,6 +1276,12 @@ void __init rtas_initialize(void)
 #ifdef CONFIG_RTAS_ERROR_LOGGING
 	rtas_last_error_token = rtas_token("rtas-last-error");
 #endif
+
+#ifdef CONFIG_PPC_RTAS_FILTER
+	for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) {
+		rtas_filters[i].token = rtas_token(rtas_filters[i].name);
+	}
+#endif
 }
 
 int __init early_init_dt_scan_rtas(unsigned long node,
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 46b4ebc33db7..5dea98fa2f93 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -32,29 +32,27 @@
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
-/*
- * SMT snooze delay stuff, 64-bit only for now
- */
-
 #ifdef CONFIG_PPC64
 
-/* Time in microseconds we delay before sleeping in the idle loop */
-static DEFINE_PER_CPU(long, smt_snooze_delay) = { 100 };
+/*
+ * Snooze delay has not been hooked up since 3fa8cad82b94 ("powerpc/pseries/cpuidle:
+ * smt-snooze-delay cleanup.") and has been broken even longer. As was foretold in
+ * 2014:
+ *
+ *  "ppc64_util currently utilises it. Once we fix ppc64_util, propose to clean
+ *  up the kernel code."
+ *
+ * powerpc-utils stopped using it as of 1.3.8. At some point in the future this
+ * code should be removed.
+ */
 
 static ssize_t store_smt_snooze_delay(struct device *dev,
 				      struct device_attribute *attr,
 				      const char *buf,
 				      size_t count)
 {
-	struct cpu *cpu = container_of(dev, struct cpu, dev);
-	ssize_t ret;
-	long snooze;
-
-	ret = sscanf(buf, "%ld", &snooze);
-	if (ret != 1)
-		return -EINVAL;
-
-	per_cpu(smt_snooze_delay, cpu->dev.id) = snooze;
+	pr_warn_once("%s (%d) stored to unsupported smt_snooze_delay, which has no effect.\n",
+		     current->comm, current->pid);
 	return count;
 }
 
@@ -62,9 +60,9 @@ static ssize_t show_smt_snooze_delay(struct device *dev,
 				     struct device_attribute *attr,
 				     char *buf)
 {
-	struct cpu *cpu = container_of(dev, struct cpu, dev);
-
-	return sprintf(buf, "%ld\n", per_cpu(smt_snooze_delay, cpu->dev.id));
+	pr_warn_once("%s (%d) read from unsupported smt_snooze_delay\n",
+		     current->comm, current->pid);
+	return sprintf(buf, "100\n");
 }
 
 static DEVICE_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
@@ -72,16 +70,10 @@ static DEVICE_ATTR(smt_snooze_delay, 0644, show_smt_snooze_delay,
 
 static int __init setup_smt_snooze_delay(char *str)
 {
-	unsigned int cpu;
-	long snooze;
-
 	if (!cpu_has_feature(CPU_FTR_SMT))
 		return 1;
 
-	snooze = simple_strtol(str, NULL, 10);
-	for_each_possible_cpu(cpu)
-		per_cpu(smt_snooze_delay, cpu) = snooze;
-
+	pr_warn("smt-snooze-delay command line option has no effect\n");
 	return 1;
 }
 __setup("smt-snooze-delay=", setup_smt_snooze_delay);
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index d1ebe152f210..8bcbf632e95a 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -889,7 +889,7 @@ static void p9_hmi_special_emu(struct pt_regs *regs)
 {
 	unsigned int ra, rb, t, i, sel, instr, rc;
 	const void __user *addr;
-	u8 vbuf[16], *vdst;
+	u8 vbuf[16] __aligned(16), *vdst;
 	unsigned long ea, msr, msr_mask;
 	bool swap;
 
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 4ba06a2a306c..e2b476d76506 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3530,6 +3530,13 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit,
 	 */
 	asm volatile("eieio; tlbsync; ptesync");
 
+	/*
+	 * cp_abort is required if the processor supports local copy-paste
+	 * to clear the copy buffer that was under control of the guest.
+	 */
+	if (cpu_has_feature(CPU_FTR_ARCH_31))
+		asm volatile(PPC_CP_ABORT);
+
 	mtspr(SPRN_LPID, vcpu->kvm->arch.host_lpid);	/* restore host LPID */
 	isync();
 
@@ -5250,6 +5257,12 @@ static long kvm_arch_vm_ioctl_hv(struct file *filp,
 	case KVM_PPC_ALLOCATE_HTAB: {
 		u32 htab_order;
 
+		/* If we're a nested hypervisor, we currently only support radix */
+		if (kvmhv_on_pseries()) {
+			r = -EOPNOTSUPP;
+			break;
+		}
+
 		r = -EFAULT;
 		if (get_user(htab_order, (u32 __user *)argp))
 			break;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 799d6d0f4ead..cd9995ee8441 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1830,6 +1830,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_P9_RADIX_PREFETCH_BUG)
 2:
 #endif /* CONFIG_PPC_RADIX_MMU */
 
+	/*
+	 * cp_abort is required if the processor supports local copy-paste
+	 * to clear the copy buffer that was under control of the guest.
+	 */
+BEGIN_FTR_SECTION
+	PPC_CP_ABORT
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_31)
+
 	/*
 	 * POWER7/POWER8 guest -> host partition switch code.
 	 * We don't have to lock against tlbies but we do
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 26292544630f..e7ae2a2c4545 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -330,10 +330,24 @@ static void free_hugepd_range(struct mmu_gather *tlb, hugepd_t *hpdp, int pdshif
 				 get_hugepd_cache_index(pdshift - shift));
 }
 
-static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd, unsigned long addr)
+static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
+				   unsigned long addr, unsigned long end,
+				   unsigned long floor, unsigned long ceiling)
 {
+	unsigned long start = addr;
 	pgtable_t token = pmd_pgtable(*pmd);
 
+	start &= PMD_MASK;
+	if (start < floor)
+		return;
+	if (ceiling) {
+		ceiling &= PMD_MASK;
+		if (!ceiling)
+			return;
+	}
+	if (end - 1 > ceiling - 1)
+		return;
+
 	pmd_clear(pmd);
 	pte_free_tlb(tlb, token, addr);
 	mm_dec_nr_ptes(tlb->mm);
@@ -363,7 +377,7 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
 			 */
 			WARN_ON(!IS_ENABLED(CONFIG_PPC_8xx));
 
-			hugetlb_free_pte_range(tlb, pmd, addr);
+			hugetlb_free_pte_range(tlb, pmd, addr, end, floor, ceiling);
 
 			continue;
 		}
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 8459056cce67..2ae42c2a5cf0 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -162,16 +162,16 @@ static __meminit struct vmemmap_backing * vmemmap_list_alloc(int node)
 	return next++;
 }
 
-static __meminit void vmemmap_list_populate(unsigned long phys,
-					    unsigned long start,
-					    int node)
+static __meminit int vmemmap_list_populate(unsigned long phys,
+					   unsigned long start,
+					   int node)
 {
 	struct vmemmap_backing *vmem_back;
 
 	vmem_back = vmemmap_list_alloc(node);
 	if (unlikely(!vmem_back)) {
-		WARN_ON(1);
-		return;
+		pr_debug("vmemap list allocation failed\n");
+		return -ENOMEM;
 	}
 
 	vmem_back->phys = phys;
@@ -179,6 +179,7 @@ static __meminit void vmemmap_list_populate(unsigned long phys,
 	vmem_back->list = vmemmap_list;
 
 	vmemmap_list = vmem_back;
+	return 0;
 }
 
 static bool altmap_cross_boundary(struct vmem_altmap *altmap, unsigned long start,
@@ -199,6 +200,7 @@ static bool altmap_cross_boundary(struct vmem_altmap *altmap, unsigned long star
 int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
 		struct vmem_altmap *altmap)
 {
+	bool altmap_alloc;
 	unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift;
 
 	/* Align to the page size of the linear mapping. */
@@ -228,13 +230,32 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
 			p = vmemmap_alloc_block_buf(page_size, node, altmap);
 			if (!p)
 				pr_debug("altmap block allocation failed, falling back to system memory");
+			else
+				altmap_alloc = true;
 		}
-		if (!p)
+		if (!p) {
 			p = vmemmap_alloc_block_buf(page_size, node, NULL);
+			altmap_alloc = false;
+		}
 		if (!p)
 			return -ENOMEM;
 
-		vmemmap_list_populate(__pa(p), start, node);
+		if (vmemmap_list_populate(__pa(p), start, node)) {
+			/*
+			 * If we don't populate vmemap list, we don't have
+			 * the ability to free the allocated vmemmap
+			 * pages in section_deactivate. Hence free them
+			 * here.
+			 */
+			int nr_pfns = page_size >> PAGE_SHIFT;
+			unsigned long page_order = get_order(page_size);
+
+			if (altmap_alloc)
+				vmem_altmap_free(altmap, nr_pfns);
+			else
+				free_pages((unsigned long)p, page_order);
+			return -ENOMEM;
+		}
 
 		pr_debug("      * %016lx..%016lx allocated at %p\n",
 			 start, start + page_size, p);
diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
index f9a680fdd9c4..51bfdfe85058 100644
--- a/arch/powerpc/platforms/powermac/sleep.S
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -294,14 +294,7 @@ grackle_wake_up:
 	 * we do any r1 memory access as we are not sure they
 	 * are in a sane state above the first 256Mb region
 	 */
-	li	r0,16		/* load up segment register values */
-	mtctr	r0		/* for context 0 */
-	lis	r3,0x2000	/* Ku = 1, VSID = 0 */
-	li	r4,0
-3:	mtsrin	r3,r4
-	addi	r3,r3,0x111	/* increment VSID */
-	addis	r4,r4,0x1000	/* address of next segment */
-	bdnz	3b
+	bl	load_segment_registers
 	sync
 	isync
 
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
index 62ef7ad995da..5e33b1fc67c2 100644
--- a/arch/powerpc/platforms/powernv/opal-elog.c
+++ b/arch/powerpc/platforms/powernv/opal-elog.c
@@ -179,14 +179,14 @@ static ssize_t raw_attr_read(struct file *filep, struct kobject *kobj,
 	return count;
 }
 
-static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type)
+static void create_elog_obj(uint64_t id, size_t size, uint64_t type)
 {
 	struct elog_obj *elog;
 	int rc;
 
 	elog = kzalloc(sizeof(*elog), GFP_KERNEL);
 	if (!elog)
-		return NULL;
+		return;
 
 	elog->kobj.kset = elog_kset;
 
@@ -219,18 +219,37 @@ static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type)
 	rc = kobject_add(&elog->kobj, NULL, "0x%llx", id);
 	if (rc) {
 		kobject_put(&elog->kobj);
-		return NULL;
+		return;
 	}
 
+	/*
+	 * As soon as the sysfs file for this elog is created/activated there is
+	 * a chance the opal_errd daemon (or any userspace) might read and
+	 * acknowledge the elog before kobject_uevent() is called. If that
+	 * happens then there is a potential race between
+	 * elog_ack_store->kobject_put() and kobject_uevent() which leads to a
+	 * use-after-free of a kernfs object resulting in a kernel crash.
+	 *
+	 * To avoid that, we need to take a reference on behalf of the bin file,
+	 * so that our reference remains valid while we call kobject_uevent().
+	 * We then drop our reference before exiting the function, leaving the
+	 * bin file to drop the last reference (if it hasn't already).
+	 */
+
+	/* Take a reference for the bin file */
+	kobject_get(&elog->kobj);
 	rc = sysfs_create_bin_file(&elog->kobj, &elog->raw_attr);
-	if (rc) {
+	if (rc == 0) {
+		kobject_uevent(&elog->kobj, KOBJ_ADD);
+	} else {
+		/* Drop the reference taken for the bin file */
 		kobject_put(&elog->kobj);
-		return NULL;
 	}
 
-	kobject_uevent(&elog->kobj, KOBJ_ADD);
+	/* Drop our reference */
+	kobject_put(&elog->kobj);
 
-	return elog;
+	return;
 }
 
 static irqreturn_t elog_event(int irq, void *data)
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index b2ba3e95bda7..bbf361f23ae8 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -43,7 +43,7 @@
 #include <asm/udbg.h>
 #define DBG(fmt...) udbg_printf(fmt)
 #else
-#define DBG(fmt...)
+#define DBG(fmt...) do { } while (0)
 #endif
 
 static void pnv_smp_setup_cpu(int cpu)
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 0ea976d1cac4..843db91e39aa 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -277,7 +277,7 @@ static int dlpar_offline_lmb(struct drmem_lmb *lmb)
 	return dlpar_change_lmb_state(lmb, false);
 }
 
-static int pseries_remove_memblock(unsigned long base, unsigned int memblock_size)
+static int pseries_remove_memblock(unsigned long base, unsigned long memblock_size)
 {
 	unsigned long block_sz, start_pfn;
 	int sections_per_block;
@@ -308,10 +308,11 @@ static int pseries_remove_memblock(unsigned long base, unsigned int memblock_siz
 
 static int pseries_remove_mem_node(struct device_node *np)
 {
-	const __be32 *regs;
+	const __be32 *prop;
 	unsigned long base;
-	unsigned int lmb_size;
+	unsigned long lmb_size;
 	int ret = -EINVAL;
+	int addr_cells, size_cells;
 
 	/*
 	 * Check to see if we are actually removing memory
@@ -322,12 +323,19 @@ static int pseries_remove_mem_node(struct device_node *np)
 	/*
 	 * Find the base address and size of the memblock
 	 */
-	regs = of_get_property(np, "reg", NULL);
-	if (!regs)
+	prop = of_get_property(np, "reg", NULL);
+	if (!prop)
 		return ret;
 
-	base = be64_to_cpu(*(unsigned long *)regs);
-	lmb_size = be32_to_cpu(regs[3]);
+	addr_cells = of_n_addr_cells(np);
+	size_cells = of_n_size_cells(np);
+
+	/*
+	 * "reg" property represents (addr,size) tuple.
+	 */
+	base = of_read_number(prop, addr_cells);
+	prop += addr_cells;
+	lmb_size = of_read_number(prop, size_cells);
 
 	pseries_remove_memblock(base, lmb_size);
 	return 0;
@@ -564,7 +572,7 @@ static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index)
 
 #else
 static inline int pseries_remove_memblock(unsigned long base,
-					  unsigned int memblock_size)
+					  unsigned long memblock_size)
 {
 	return -EOPNOTSUPP;
 }
@@ -886,10 +894,11 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
 
 static int pseries_add_mem_node(struct device_node *np)
 {
-	const __be32 *regs;
+	const __be32 *prop;
 	unsigned long base;
-	unsigned int lmb_size;
+	unsigned long lmb_size;
 	int ret = -EINVAL;
+	int addr_cells, size_cells;
 
 	/*
 	 * Check to see if we are actually adding memory
@@ -900,12 +909,18 @@ static int pseries_add_mem_node(struct device_node *np)
 	/*
 	 * Find the base and size of the memblock
 	 */
-	regs = of_get_property(np, "reg", NULL);
-	if (!regs)
+	prop = of_get_property(np, "reg", NULL);
+	if (!prop)
 		return ret;
 
-	base = be64_to_cpu(*(unsigned long *)regs);
-	lmb_size = be32_to_cpu(regs[3]);
+	addr_cells = of_n_addr_cells(np);
+	size_cells = of_n_size_cells(np);
+	/*
+	 * "reg" property represents (addr,size) tuple.
+	 */
+	base = of_read_number(prop, addr_cells);
+	prop += addr_cells;
+	lmb_size = of_read_number(prop, size_cells);
 
 	/*
 	 * Update memory region to represent the memory add
diff --git a/arch/riscv/include/uapi/asm/auxvec.h b/arch/riscv/include/uapi/asm/auxvec.h
index d86cb17bbabe..22e0ae888406 100644
--- a/arch/riscv/include/uapi/asm/auxvec.h
+++ b/arch/riscv/include/uapi/asm/auxvec.h
@@ -10,4 +10,7 @@
 /* vDSO location */
 #define AT_SYSINFO_EHDR 33
 
+/* entries in ARCH_DLINFO */
+#define AT_VECTOR_SIZE_ARCH	1
+
 #endif /* _UAPI_ASM_RISCV_AUXVEC_H */
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index dae10961d072..1a2c2b1ed964 100644
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -360,22 +360,23 @@ ENTRY(startup_kdump)
 # the save area and does disabled wait with a faulty address.
 #
 ENTRY(startup_pgm_check_handler)
-	stmg	%r0,%r15,__LC_SAVE_AREA_SYNC
-	la	%r1,4095
-	stctg	%c0,%c15,__LC_CREGS_SAVE_AREA-4095(%r1)
-	mvc	__LC_GPREGS_SAVE_AREA-4095(128,%r1),__LC_SAVE_AREA_SYNC
-	mvc	__LC_PSW_SAVE_AREA-4095(16,%r1),__LC_PGM_OLD_PSW
+	stmg	%r8,%r15,__LC_SAVE_AREA_SYNC
+	la	%r8,4095
+	stctg	%c0,%c15,__LC_CREGS_SAVE_AREA-4095(%r8)
+	stmg	%r0,%r7,__LC_GPREGS_SAVE_AREA-4095(%r8)
+	mvc	__LC_GPREGS_SAVE_AREA-4095+64(64,%r8),__LC_SAVE_AREA_SYNC
+	mvc	__LC_PSW_SAVE_AREA-4095(16,%r8),__LC_PGM_OLD_PSW
 	mvc	__LC_RETURN_PSW(16),__LC_PGM_OLD_PSW
 	ni	__LC_RETURN_PSW,0xfc	# remove IO and EX bits
 	ni	__LC_RETURN_PSW+1,0xfb	# remove MCHK bit
 	oi	__LC_RETURN_PSW+1,0x2	# set wait state bit
-	larl	%r2,.Lold_psw_disabled_wait
-	stg	%r2,__LC_PGM_NEW_PSW+8
-	l	%r15,.Ldump_info_stack-.Lold_psw_disabled_wait(%r2)
+	larl	%r9,.Lold_psw_disabled_wait
+	stg	%r9,__LC_PGM_NEW_PSW+8
+	l	%r15,.Ldump_info_stack-.Lold_psw_disabled_wait(%r9)
 	brasl	%r14,print_pgm_check_info
 .Lold_psw_disabled_wait:
-	la	%r1,4095
-	lmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)
+	la	%r8,4095
+	lmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r8)
 	lpswe	__LC_RETURN_PSW		# disabled wait
 .Ldump_info_stack:
 	.long	0x5000 + PAGE_SIZE - STACK_FRAME_OVERHEAD
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 513e59d08a55..270f5e9d5a22 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -345,8 +345,9 @@ static DEFINE_PER_CPU(atomic_t, clock_sync_word);
 static DEFINE_MUTEX(clock_sync_mutex);
 static unsigned long clock_sync_flags;
 
-#define CLOCK_SYNC_HAS_STP	0
-#define CLOCK_SYNC_STP		1
+#define CLOCK_SYNC_HAS_STP		0
+#define CLOCK_SYNC_STP			1
+#define CLOCK_SYNC_STPINFO_VALID	2
 
 /*
  * The get_clock function for the physical clock. It will get the current
@@ -583,6 +584,22 @@ void stp_queue_work(void)
 	queue_work(time_sync_wq, &stp_work);
 }
 
+static int __store_stpinfo(void)
+{
+	int rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
+
+	if (rc)
+		clear_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+	else
+		set_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+	return rc;
+}
+
+static int stpinfo_valid(void)
+{
+	return stp_online && test_bit(CLOCK_SYNC_STPINFO_VALID, &clock_sync_flags);
+}
+
 static int stp_sync_clock(void *data)
 {
 	struct clock_sync_data *sync = data;
@@ -604,8 +621,7 @@ static int stp_sync_clock(void *data)
 			if (rc == 0) {
 				sync->clock_delta = clock_delta;
 				clock_sync_global(clock_delta);
-				rc = chsc_sstpi(stp_page, &stp_info,
-						sizeof(struct stp_sstpi));
+				rc = __store_stpinfo();
 				if (rc == 0 && stp_info.tmd != 2)
 					rc = -EAGAIN;
 			}
@@ -650,7 +666,7 @@ static void stp_work_fn(struct work_struct *work)
 	if (rc)
 		goto out_unlock;
 
-	rc = chsc_sstpi(stp_page, &stp_info, sizeof(struct stp_sstpi));
+	rc = __store_stpinfo();
 	if (rc || stp_info.c == 0)
 		goto out_unlock;
 
@@ -687,10 +703,14 @@ static ssize_t ctn_id_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online)
-		return -ENODATA;
-	return sprintf(buf, "%016llx\n",
-		       *(unsigned long long *) stp_info.ctnid);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid())
+		ret = sprintf(buf, "%016llx\n",
+			      *(unsigned long long *) stp_info.ctnid);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(ctn_id);
@@ -699,9 +719,13 @@ static ssize_t ctn_type_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online)
-		return -ENODATA;
-	return sprintf(buf, "%i\n", stp_info.ctn);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid())
+		ret = sprintf(buf, "%i\n", stp_info.ctn);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(ctn_type);
@@ -710,9 +734,13 @@ static ssize_t dst_offset_show(struct device *dev,
 				   struct device_attribute *attr,
 				   char *buf)
 {
-	if (!stp_online || !(stp_info.vbits & 0x2000))
-		return -ENODATA;
-	return sprintf(buf, "%i\n", (int)(s16) stp_info.dsto);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid() && (stp_info.vbits & 0x2000))
+		ret = sprintf(buf, "%i\n", (int)(s16) stp_info.dsto);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(dst_offset);
@@ -721,9 +749,13 @@ static ssize_t leap_seconds_show(struct device *dev,
 					struct device_attribute *attr,
 					char *buf)
 {
-	if (!stp_online || !(stp_info.vbits & 0x8000))
-		return -ENODATA;
-	return sprintf(buf, "%i\n", (int)(s16) stp_info.leaps);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid() && (stp_info.vbits & 0x8000))
+		ret = sprintf(buf, "%i\n", (int)(s16) stp_info.leaps);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(leap_seconds);
@@ -732,9 +764,13 @@ static ssize_t stratum_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online)
-		return -ENODATA;
-	return sprintf(buf, "%i\n", (int)(s16) stp_info.stratum);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid())
+		ret = sprintf(buf, "%i\n", (int)(s16) stp_info.stratum);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(stratum);
@@ -743,9 +779,13 @@ static ssize_t time_offset_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online || !(stp_info.vbits & 0x0800))
-		return -ENODATA;
-	return sprintf(buf, "%i\n", (int) stp_info.tto);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid() && (stp_info.vbits & 0x0800))
+		ret = sprintf(buf, "%i\n", (int) stp_info.tto);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(time_offset);
@@ -754,9 +794,13 @@ static ssize_t time_zone_offset_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online || !(stp_info.vbits & 0x4000))
-		return -ENODATA;
-	return sprintf(buf, "%i\n", (int)(s16) stp_info.tzo);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid() && (stp_info.vbits & 0x4000))
+		ret = sprintf(buf, "%i\n", (int)(s16) stp_info.tzo);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(time_zone_offset);
@@ -765,9 +809,13 @@ static ssize_t timing_mode_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online)
-		return -ENODATA;
-	return sprintf(buf, "%i\n", stp_info.tmd);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid())
+		ret = sprintf(buf, "%i\n", stp_info.tmd);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(timing_mode);
@@ -776,9 +824,13 @@ static ssize_t timing_state_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	if (!stp_online)
-		return -ENODATA;
-	return sprintf(buf, "%i\n", stp_info.tst);
+	ssize_t ret = -ENODATA;
+
+	mutex_lock(&stp_work_mutex);
+	if (stpinfo_valid())
+		ret = sprintf(buf, "%i\n", stp_info.tst);
+	mutex_unlock(&stp_work_mutex);
+	return ret;
 }
 
 static DEVICE_ATTR_RO(timing_state);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index e286e2badc8a..e38d8bf454e8 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1039,38 +1039,9 @@ void smp_fetch_global_pmu(void)
  * are flush_tlb_*() routines, and these run after flush_cache_*()
  * which performs the flushw.
  *
- * The SMP TLB coherency scheme we use works as follows:
- *
- * 1) mm->cpu_vm_mask is a bit mask of which cpus an address
- *    space has (potentially) executed on, this is the heuristic
- *    we use to avoid doing cross calls.
- *
- *    Also, for flushing from kswapd and also for clones, we
- *    use cpu_vm_mask as the list of cpus to make run the TLB.
- *
- * 2) TLB context numbers are shared globally across all processors
- *    in the system, this allows us to play several games to avoid
- *    cross calls.
- *
- *    One invariant is that when a cpu switches to a process, and
- *    that processes tsk->active_mm->cpu_vm_mask does not have the
- *    current cpu's bit set, that tlb context is flushed locally.
- *
- *    If the address space is non-shared (ie. mm->count == 1) we avoid
- *    cross calls when we want to flush the currently running process's
- *    tlb state.  This is done by clearing all cpu bits except the current
- *    processor's in current->mm->cpu_vm_mask and performing the
- *    flush locally only.  This will force any subsequent cpus which run
- *    this task to flush the context from the local tlb if the process
- *    migrates to another cpu (again).
- *
- * 3) For shared address spaces (threads) and swapping we bite the
- *    bullet for most cases and perform the cross call (but only to
- *    the cpus listed in cpu_vm_mask).
- *
- *    The performance gain from "optimizing" away the cross call for threads is
- *    questionable (in theory the big win for threads is the massive sharing of
- *    address space state across processors).
+ * mm->cpu_vm_mask is a bit mask of which cpus an address
+ * space has (potentially) executed on, this is the heuristic
+ * we use to limit cross calls.
  */
 
 /* This currently is only used by the hugetlb arch pre-fault
@@ -1080,18 +1051,13 @@ void smp_fetch_global_pmu(void)
 void smp_flush_tlb_mm(struct mm_struct *mm)
 {
 	u32 ctx = CTX_HWBITS(mm->context);
-	int cpu = get_cpu();
 
-	if (atomic_read(&mm->mm_users) == 1) {
-		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
-		goto local_flush_and_out;
-	}
+	get_cpu();
 
 	smp_cross_call_masked(&xcall_flush_tlb_mm,
 			      ctx, 0, 0,
 			      mm_cpumask(mm));
 
-local_flush_and_out:
 	__flush_tlb_mm(ctx, SECONDARY_CONTEXT);
 
 	put_cpu();
@@ -1114,17 +1080,15 @@ void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long
 {
 	u32 ctx = CTX_HWBITS(mm->context);
 	struct tlb_pending_info info;
-	int cpu = get_cpu();
+
+	get_cpu();
 
 	info.ctx = ctx;
 	info.nr = nr;
 	info.vaddrs = vaddrs;
 
-	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
-		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
-	else
-		smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
-				       &info, 1);
+	smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
+			       &info, 1);
 
 	__flush_tlb_pending(ctx, nr, vaddrs);
 
@@ -1134,14 +1098,13 @@ void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long
 void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
 {
 	unsigned long context = CTX_HWBITS(mm->context);
-	int cpu = get_cpu();
 
-	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
-		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
-	else
-		smp_cross_call_masked(&xcall_flush_tlb_page,
-				      context, vaddr, 0,
-				      mm_cpumask(mm));
+	get_cpu();
+
+	smp_cross_call_masked(&xcall_flush_tlb_page,
+			      context, vaddr, 0,
+			      mm_cpumask(mm));
+
 	__flush_tlb_page(context, vaddr);
 
 	put_cpu();
diff --git a/arch/um/kernel/sigio.c b/arch/um/kernel/sigio.c
index 10c99e058fca..d1cffc2a7f21 100644
--- a/arch/um/kernel/sigio.c
+++ b/arch/um/kernel/sigio.c
@@ -35,14 +35,14 @@ int write_sigio_irq(int fd)
 }
 
 /* These are called from os-Linux/sigio.c to protect its pollfds arrays. */
-static DEFINE_SPINLOCK(sigio_spinlock);
+static DEFINE_MUTEX(sigio_mutex);
 
 void sigio_lock(void)
 {
-	spin_lock(&sigio_spinlock);
+	mutex_lock(&sigio_mutex);
 }
 
 void sigio_unlock(void)
 {
-	spin_unlock(&sigio_spinlock);
+	mutex_unlock(&sigio_mutex);
 }
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index dde7cb3724df..9bd966ef7d19 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -87,8 +87,11 @@ static unsigned long get_boot_seed(void)
 static bool memmap_too_large;
 
 
-/* Store memory limit specified by "mem=nn[KMG]" or "memmap=nn[KMG]" */
-static unsigned long long mem_limit = ULLONG_MAX;
+/*
+ * Store memory limit: MAXMEM on 64-bit and KERNEL_IMAGE_SIZE on 32-bit.
+ * It may be reduced by "mem=nn[KMG]" or "memmap=nn[KMG]" command line options.
+ */
+static unsigned long long mem_limit;
 
 /* Number of immovable memory regions */
 static int num_immovable_mem;
@@ -214,7 +217,7 @@ static void mem_avoid_memmap(enum parse_mode mode, char *str)
 
 		if (start == 0) {
 			/* Store the specified memory limit if size > 0 */
-			if (size > 0)
+			if (size > 0 && size < mem_limit)
 				mem_limit = size;
 
 			continue;
@@ -302,7 +305,8 @@ static void handle_mem_options(void)
 			if (mem_size == 0)
 				goto out;
 
-			mem_limit = mem_size;
+			if (mem_size < mem_limit)
+				mem_limit = mem_size;
 		} else if (!strcmp(param, "efi_fake_mem")) {
 			mem_avoid_memmap(PARSE_EFI, val);
 		}
@@ -314,7 +318,9 @@ static void handle_mem_options(void)
 }
 
 /*
- * In theory, KASLR can put the kernel anywhere in the range of [16M, 64T).
+ * In theory, KASLR can put the kernel anywhere in the range of [16M, MAXMEM)
+ * on 64-bit, and [16M, KERNEL_IMAGE_SIZE) on 32-bit.
+ *
  * The mem_avoid array is used to store the ranges that need to be avoided
  * when KASLR searches for an appropriate random address. We must avoid any
  * regions that are unsafe to overlap with during decompression, and other
@@ -614,10 +620,6 @@ static void __process_mem_region(struct mem_vector *entry,
 	unsigned long start_orig, end;
 	struct mem_vector cur_entry;
 
-	/* On 32-bit, ignore entries entirely above our maximum. */
-	if (IS_ENABLED(CONFIG_X86_32) && entry->start >= KERNEL_IMAGE_SIZE)
-		return;
-
 	/* Ignore entries entirely below our minimum. */
 	if (entry->start + entry->size < minimum)
 		return;
@@ -650,11 +652,6 @@ static void __process_mem_region(struct mem_vector *entry,
 		/* Reduce size by any delta from the original address. */
 		region.size -= region.start - start_orig;
 
-		/* On 32-bit, reduce region size to fit within max size. */
-		if (IS_ENABLED(CONFIG_X86_32) &&
-		    region.start + region.size > KERNEL_IMAGE_SIZE)
-			region.size = KERNEL_IMAGE_SIZE - region.start;
-
 		/* Return if region can't contain decompressed kernel */
 		if (region.size < image_size)
 			return;
@@ -839,15 +836,16 @@ static void process_e820_entries(unsigned long minimum,
 static unsigned long find_random_phys_addr(unsigned long minimum,
 					   unsigned long image_size)
 {
+	/* Bail out early if it's impossible to succeed. */
+	if (minimum + image_size > mem_limit)
+		return 0;
+
 	/* Check if we had too many memmaps. */
 	if (memmap_too_large) {
 		debug_putstr("Aborted memory entries scan (more than 4 memmap= args)!\n");
 		return 0;
 	}
 
-	/* Make sure minimum is aligned. */
-	minimum = ALIGN(minimum, CONFIG_PHYSICAL_ALIGN);
-
 	if (process_efi_entries(minimum, image_size))
 		return slots_fetch_random();
 
@@ -860,8 +858,6 @@ static unsigned long find_random_virt_addr(unsigned long minimum,
 {
 	unsigned long slots, random_addr;
 
-	/* Make sure minimum is aligned. */
-	minimum = ALIGN(minimum, CONFIG_PHYSICAL_ALIGN);
 	/* Align image_size for easy slot calculations. */
 	image_size = ALIGN(image_size, CONFIG_PHYSICAL_ALIGN);
 
@@ -908,6 +904,11 @@ void choose_random_location(unsigned long input,
 	/* Prepare to add new identity pagetables on demand. */
 	initialize_identity_maps();
 
+	if (IS_ENABLED(CONFIG_X86_32))
+		mem_limit = KERNEL_IMAGE_SIZE;
+	else
+		mem_limit = MAXMEM;
+
 	/* Record the various known unsafe memory ranges. */
 	mem_avoid_init(input, input_size, *output);
 
@@ -917,6 +918,8 @@ void choose_random_location(unsigned long input,
 	 * location:
 	 */
 	min_addr = min(*output, 512UL << 20);
+	/* Make sure minimum is aligned. */
+	min_addr = ALIGN(min_addr, CONFIG_PHYSICAL_ALIGN);
 
 	/* Walk available memory entries to find a random address. */
 	random_addr = find_random_phys_addr(min_addr, output_size);
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index a023cbe21230..39169885adfa 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -335,11 +335,15 @@ static u64 get_ibs_op_count(u64 config)
 {
 	u64 count = 0;
 
+	/*
+	 * If the internal 27-bit counter rolled over, the count is MaxCnt
+	 * and the lower 7 bits of CurCnt are randomized.
+	 * Otherwise CurCnt has the full 27-bit current counter value.
+	 */
 	if (config & IBS_OP_VAL)
-		count += (config & IBS_OP_MAX_CNT) << 4; /* cnt rolled over */
-
-	if (ibs_caps & IBS_CAPS_RDWROPCNT)
-		count += (config & IBS_OP_CUR_CNT) >> 32;
+		count = (config & IBS_OP_MAX_CNT) << 4;
+	else if (ibs_caps & IBS_CAPS_RDWROPCNT)
+		count = (config & IBS_OP_CUR_CNT) >> 32;
 
 	return count;
 }
@@ -632,18 +636,24 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
 				       perf_ibs->offset_max,
 				       offset + 1);
 	} while (offset < offset_max);
+	/*
+	 * Read IbsBrTarget, IbsOpData4, and IbsExtdCtl separately
+	 * depending on their availability.
+	 * Can't add to offset_max as they are staggered
+	 */
 	if (event->attr.sample_type & PERF_SAMPLE_RAW) {
-		/*
-		 * Read IbsBrTarget and IbsOpData4 separately
-		 * depending on their availability.
-		 * Can't add to offset_max as they are staggered
-		 */
-		if (ibs_caps & IBS_CAPS_BRNTRGT) {
-			rdmsrl(MSR_AMD64_IBSBRTARGET, *buf++);
-			size++;
+		if (perf_ibs == &perf_ibs_op) {
+			if (ibs_caps & IBS_CAPS_BRNTRGT) {
+				rdmsrl(MSR_AMD64_IBSBRTARGET, *buf++);
+				size++;
+			}
+			if (ibs_caps & IBS_CAPS_OPDATA4) {
+				rdmsrl(MSR_AMD64_IBSOPDATA4, *buf++);
+				size++;
+			}
 		}
-		if (ibs_caps & IBS_CAPS_OPDATA4) {
-			rdmsrl(MSR_AMD64_IBSOPDATA4, *buf++);
+		if (perf_ibs == &perf_ibs_fetch && (ibs_caps & IBS_CAPS_FETCHCTLEXTD)) {
+			rdmsrl(MSR_AMD64_ICIBSEXTDCTL, *buf++);
 			size++;
 		}
 	}
diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
index 76400c052b0e..e7e61c8b56bd 100644
--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -181,28 +181,16 @@ static void amd_uncore_del(struct perf_event *event, int flags)
 }
 
 /*
- * Convert logical CPU number to L3 PMC Config ThreadMask format
+ * Return a full thread and slice mask until per-CPU is
+ * properly supported.
  */
-static u64 l3_thread_slice_mask(int cpu)
+static u64 l3_thread_slice_mask(void)
 {
-	u64 thread_mask, core = topology_core_id(cpu);
-	unsigned int shift, thread = 0;
+	if (boot_cpu_data.x86 <= 0x18)
+		return AMD64_L3_SLICE_MASK | AMD64_L3_THREAD_MASK;
 
-	if (topology_smt_supported() && !topology_is_primary_thread(cpu))
-		thread = 1;
-
-	if (boot_cpu_data.x86 <= 0x18) {
-		shift = AMD64_L3_THREAD_SHIFT + 2 * (core % 4) + thread;
-		thread_mask = BIT_ULL(shift);
-
-		return AMD64_L3_SLICE_MASK | thread_mask;
-	}
-
-	core = (core << AMD64_L3_COREID_SHIFT) & AMD64_L3_COREID_MASK;
-	shift = AMD64_L3_THREAD_SHIFT + thread;
-	thread_mask = BIT_ULL(shift);
-
-	return AMD64_L3_EN_ALL_SLICES | core | thread_mask;
+	return AMD64_L3_EN_ALL_SLICES | AMD64_L3_EN_ALL_CORES |
+	       AMD64_L3_F19H_THREAD_MASK;
 }
 
 static int amd_uncore_event_init(struct perf_event *event)
@@ -232,7 +220,7 @@ static int amd_uncore_event_init(struct perf_event *event)
 	 * For other events, the two fields do not affect the count.
 	 */
 	if (l3_mask && is_llc_event(event))
-		hwc->config |= l3_thread_slice_mask(event->cpu);
+		hwc->config |= l3_thread_slice_mask();
 
 	uncore = event_to_amd_uncore(event);
 	if (!uncore)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 11bbc6590f90..82bb0b716e49 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1286,11 +1286,11 @@ int x86_perf_event_set_period(struct perf_event *event)
 	wrmsrl(hwc->event_base, (u64)(-left) & x86_pmu.cntval_mask);
 
 	/*
-	 * Clear the Merge event counter's upper 16 bits since
+	 * Sign extend the Merge event counter's upper 16 bits since
 	 * we currently declare a 48-bit counter width
 	 */
 	if (is_counter_pair(hwc))
-		wrmsrl(x86_pmu_event_addr(idx + 1), 0);
+		wrmsrl(x86_pmu_event_addr(idx + 1), 0xffff);
 
 	/*
 	 * Due to erratum on certan cpu we need
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 31e6887d24f1..34b21ba66637 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -243,7 +243,7 @@ static struct extra_reg intel_skl_extra_regs[] __read_mostly = {
 
 static struct event_constraint intel_icl_event_constraints[] = {
 	FIXED_EVENT_CONSTRAINT(0x00c0, 0),	/* INST_RETIRED.ANY */
-	INTEL_UEVENT_CONSTRAINT(0x1c0, 0),	/* INST_RETIRED.PREC_DIST */
+	FIXED_EVENT_CONSTRAINT(0x01c0, 0),	/* INST_RETIRED.PREC_DIST */
 	FIXED_EVENT_CONSTRAINT(0x003c, 1),	/* CPU_CLK_UNHALTED.CORE */
 	FIXED_EVENT_CONSTRAINT(0x0300, 2),	/* CPU_CLK_UNHALTED.REF */
 	FIXED_EVENT_CONSTRAINT(0x0400, 3),	/* SLOTS */
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
index 5a42f9206138..51e2bf27cc9b 100644
--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -5,6 +5,7 @@
 #include <asm/string.h>
 #include <asm/page.h>
 #include <asm/checksum.h>
+#include <asm/mce.h>
 
 #include <asm-generic/asm-prototypes.h>
 
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 2859ee4f39a8..b08c8a2afc0e 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -464,6 +464,7 @@
 #define MSR_AMD64_IBSOP_REG_MASK	((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
 #define MSR_AMD64_IBSCTL		0xc001103a
 #define MSR_AMD64_IBSBRTARGET		0xc001103b
+#define MSR_AMD64_ICIBSEXTDCTL		0xc001103c
 #define MSR_AMD64_IBSOPDATA4		0xc001103d
 #define MSR_AMD64_IBS_REG_COUNT_MAX	8 /* includes MSR_AMD64_IBSBRTARGET */
 #define MSR_AMD64_SEV			0xc0010131
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index cdaab30880b9..cd6be6f143e8 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -807,6 +807,15 @@ static inline temp_mm_state_t use_temporary_mm(struct mm_struct *mm)
 	temp_mm_state_t temp_state;
 
 	lockdep_assert_irqs_disabled();
+
+	/*
+	 * Make sure not to be in TLB lazy mode, as otherwise we'll end up
+	 * with a stale address space WITHOUT being in lazy mode after
+	 * restoring the previous mm.
+	 */
+	if (this_cpu_read(cpu_tlbstate.is_lazy))
+		leave_mm(smp_processor_id());
+
 	temp_state.mm = this_cpu_read(cpu_tlbstate.loaded_mm);
 	switch_mm_irqs_off(NULL, mm, current);
 
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index ec88bbe08a32..4a96aa3de7d8 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -320,19 +320,12 @@ EXPORT_SYMBOL_GPL(unwind_get_return_address);
 
 unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
 {
-	struct task_struct *task = state->task;
-
 	if (unwind_done(state))
 		return NULL;
 
 	if (state->regs)
 		return &state->regs->ip;
 
-	if (task != current && state->sp == task->thread.sp) {
-		struct inactive_task_frame *frame = (void *)task->thread.sp;
-		return &frame->ret_addr;
-	}
-
 	if (state->sp)
 		return (unsigned long *)state->sp - 1;
 
@@ -662,7 +655,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
 	} else {
 		struct inactive_task_frame *frame = (void *)task->thread.sp;
 
-		state->sp = task->thread.sp;
+		state->sp = task->thread.sp + sizeof(*frame);
 		state->bp = READ_ONCE_NOCHECK(frame->bp);
 		state->ip = READ_ONCE_NOCHECK(frame->ret_addr);
 		state->signal = (void *)state->ip == ret_from_fork;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ce856e0ece84..bacfc9e94a62 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -259,13 +259,13 @@ static int kvm_msr_ignored_check(struct kvm_vcpu *vcpu, u32 msr,
 
 	if (ignore_msrs) {
 		if (report_ignored_msrs)
-			vcpu_unimpl(vcpu, "ignored %s: 0x%x data 0x%llx\n",
-				    op, msr, data);
+			kvm_pr_unimpl("ignored %s: 0x%x data 0x%llx\n",
+				      op, msr, data);
 		/* Mask the error */
 		return 0;
 	} else {
-		vcpu_debug_ratelimited(vcpu, "unhandled %s: 0x%x data 0x%llx\n",
-				       op, msr, data);
+		kvm_debug_ratelimited("unhandled %s: 0x%x data 0x%llx\n",
+				      op, msr, data);
 		return 1;
 	}
 }
diff --git a/block/bio.c b/block/bio.c
index e865ea55b9f9..58d765400226 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1046,6 +1046,7 @@ static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 	ssize_t size, left;
 	unsigned len, i;
 	size_t offset;
+	int ret = 0;
 
 	if (WARN_ON_ONCE(!max_append_sectors))
 		return 0;
@@ -1068,15 +1069,17 @@ static int __bio_iov_append_get_pages(struct bio *bio, struct iov_iter *iter)
 
 		len = min_t(size_t, PAGE_SIZE - offset, left);
 		if (bio_add_hw_page(q, bio, page, len, offset,
-				max_append_sectors, &same_page) != len)
-			return -EINVAL;
+				max_append_sectors, &same_page) != len) {
+			ret = -EINVAL;
+			break;
+		}
 		if (same_page)
 			put_page(page);
 		offset = 0;
 	}
 
-	iov_iter_advance(iter, size);
-	return 0;
+	iov_iter_advance(iter, size - left);
+	return ret;
 }
 
 /**
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 94a53d779c12..ca2fdb58e7af 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -105,7 +105,7 @@ static bool blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx,
 {
 	struct mq_inflight *mi = priv;
 
-	if (rq->part == mi->part)
+	if (rq->part == mi->part && blk_mq_rq_state(rq) == MQ_RQ_IN_FLIGHT)
 		mi->inflight[rq_data_dir(rq)]++;
 
 	return true;
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c
index 88c8af455ea3..cf91f49101ea 100644
--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -228,6 +228,7 @@ static void acpi_table_drop_item(struct config_group *group,
 
 	ACPI_INFO(("Host-directed Dynamic ACPI Table Unload"));
 	acpi_unload_table(table->index);
+	config_item_put(cfg);
 }
 
 static struct configfs_group_operations acpi_table_group_ops = {
diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c
index 6041974c7627..fb7290338593 100644
--- a/drivers/acpi/acpi_dbg.c
+++ b/drivers/acpi/acpi_dbg.c
@@ -749,6 +749,9 @@ static int __init acpi_aml_init(void)
 {
 	int ret;
 
+	if (acpi_disabled)
+		return -ENODEV;
+
 	/* Initialize AML IO interface */
 	mutex_init(&acpi_aml_io.lock);
 	init_waitqueue_head(&acpi_aml_io.wait);
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index f138e12b7b82..72f1fb77abcd 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -222,9 +222,9 @@ static int __init extlog_init(void)
 	u64 cap;
 	int rc;
 
-	rdmsrl(MSR_IA32_MCG_CAP, cap);
-
-	if (!(cap & MCG_ELOG_P) || !extlog_get_l1addr())
+	if (rdmsrl_safe(MSR_IA32_MCG_CAP, &cap) ||
+	    !(cap & MCG_ELOG_P) ||
+	    !extlog_get_l1addr())
 		return -ENODEV;
 
 	rc = -EINVAL;
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index a4eda7fe50d3..da4b125ab4c3 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -153,6 +153,7 @@ struct acpi_button {
 	int last_state;
 	ktime_t last_time;
 	bool suspended;
+	bool lid_state_initialized;
 };
 
 static struct acpi_device *lid_device;
@@ -383,6 +384,8 @@ static int acpi_lid_update_state(struct acpi_device *device,
 
 static void acpi_lid_initialize_state(struct acpi_device *device)
 {
+	struct acpi_button *button = acpi_driver_data(device);
+
 	switch (lid_init_state) {
 	case ACPI_BUTTON_LID_INIT_OPEN:
 		(void)acpi_lid_notify_state(device, 1);
@@ -394,13 +397,14 @@ static void acpi_lid_initialize_state(struct acpi_device *device)
 	default:
 		break;
 	}
+
+	button->lid_state_initialized = true;
 }
 
 static void acpi_button_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_button *button = acpi_driver_data(device);
 	struct input_dev *input;
-	int users;
 
 	switch (event) {
 	case ACPI_FIXED_HARDWARE_EVENT:
@@ -409,10 +413,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 	case ACPI_BUTTON_NOTIFY_STATUS:
 		input = button->input;
 		if (button->type == ACPI_BUTTON_TYPE_LID) {
-			mutex_lock(&button->input->mutex);
-			users = button->input->users;
-			mutex_unlock(&button->input->mutex);
-			if (users)
+			if (button->lid_state_initialized)
 				acpi_lid_update_state(device, true);
 		} else {
 			int keycode;
@@ -457,7 +458,7 @@ static int acpi_button_resume(struct device *dev)
 	struct acpi_button *button = acpi_driver_data(device);
 
 	button->suspended = false;
-	if (button->type == ACPI_BUTTON_TYPE_LID && button->input->users) {
+	if (button->type == ACPI_BUTTON_TYPE_LID) {
 		button->last_state = !!acpi_lid_evaluate_state(device);
 		button->last_time = ktime_get();
 		acpi_lid_initialize_state(device);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index fcddda3d6712..e0cb1bcfffb2 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -2011,20 +2011,16 @@ bool acpi_ec_dispatch_gpe(void)
 	if (acpi_any_gpe_status_set(first_ec->gpe))
 		return true;
 
-	if (ec_no_wakeup)
-		return false;
-
 	/*
 	 * Dispatch the EC GPE in-band, but do not report wakeup in any case
 	 * to allow the caller to process events properly after that.
 	 */
 	ret = acpi_dispatch_gpe(NULL, first_ec->gpe);
-	if (ret == ACPI_INTERRUPT_HANDLED) {
+	if (ret == ACPI_INTERRUPT_HANDLED)
 		pm_pr_dbg("ACPI EC GPE dispatched\n");
 
-		/* Flush the event and query workqueues. */
-		acpi_ec_flush_work();
-	}
+	/* Flush the event and query workqueues. */
+	acpi_ec_flush_work();
 
 	return false;
 }
diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c
index 2c32cfb72370..6a91a55229ae 100644
--- a/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -424,7 +424,8 @@ static int __init hmat_parse_proximity_domain(union acpi_subtable_headers *heade
 		pr_info("HMAT: Memory Flags:%04x Processor Domain:%u Memory Domain:%u\n",
 			p->flags, p->processor_PD, p->memory_PD);
 
-	if (p->flags & ACPI_HMAT_MEMORY_PD_VALID && hmat_revision == 1) {
+	if ((hmat_revision == 1 && p->flags & ACPI_HMAT_MEMORY_PD_VALID) ||
+	    hmat_revision > 1) {
 		target = find_mem_target(p->memory_PD);
 		if (!target) {
 			pr_debug("HMAT: Memory Domain missing from SRAT\n");
diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
index 15bbaab8500b..1fb486f46ee2 100644
--- a/drivers/acpi/numa/srat.c
+++ b/drivers/acpi/numa/srat.c
@@ -31,7 +31,7 @@ int acpi_numa __initdata;
 
 int pxm_to_node(int pxm)
 {
-	if (pxm < 0)
+	if (pxm < 0 || pxm >= MAX_PXM_DOMAINS || numa_off)
 		return NUMA_NO_NODE;
 	return pxm_to_node_map[pxm];
 }
diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
index 54b36b7ad47d..e526571e0ebd 100644
--- a/drivers/acpi/pci_mcfg.c
+++ b/drivers/acpi/pci_mcfg.c
@@ -142,6 +142,26 @@ static struct mcfg_fixup mcfg_quirks[] = {
 	XGENE_V2_ECAM_MCFG(4, 0),
 	XGENE_V2_ECAM_MCFG(4, 1),
 	XGENE_V2_ECAM_MCFG(4, 2),
+
+#define ALTRA_ECAM_QUIRK(rev, seg) \
+	{ "Ampere", "Altra   ", rev, seg, MCFG_BUS_ANY, &pci_32b_read_ops }
+
+	ALTRA_ECAM_QUIRK(1, 0),
+	ALTRA_ECAM_QUIRK(1, 1),
+	ALTRA_ECAM_QUIRK(1, 2),
+	ALTRA_ECAM_QUIRK(1, 3),
+	ALTRA_ECAM_QUIRK(1, 4),
+	ALTRA_ECAM_QUIRK(1, 5),
+	ALTRA_ECAM_QUIRK(1, 6),
+	ALTRA_ECAM_QUIRK(1, 7),
+	ALTRA_ECAM_QUIRK(1, 8),
+	ALTRA_ECAM_QUIRK(1, 9),
+	ALTRA_ECAM_QUIRK(1, 10),
+	ALTRA_ECAM_QUIRK(1, 11),
+	ALTRA_ECAM_QUIRK(1, 12),
+	ALTRA_ECAM_QUIRK(1, 13),
+	ALTRA_ECAM_QUIRK(1, 14),
+	ALTRA_ECAM_QUIRK(1, 15),
 };
 
 static char mcfg_oem_id[ACPI_OEM_ID_SIZE];
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 2499d7e3c710..36b62e9c8b69 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -282,6 +282,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"),
 		},
 	},
+	/* https://bugs.launchpad.net/bugs/1894667 */
+	{
+	 .callback = video_detect_force_video,
+	 .ident = "HP 635 Notebook",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"),
+		},
+	},
 
 	/* Non win8 machines which need native backlight nevertheless */
 	{
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index eb9dc14e5147..20190f66ced9 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -2100,7 +2100,7 @@ static int nv_swncq_sdbfis(struct ata_port *ap)
 	pp->dhfis_bits &= ~done_mask;
 	pp->dmafis_bits &= ~done_mask;
 	pp->sdbfis_bits |= done_mask;
-	ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
+	ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
 
 	if (!ap->qc_active) {
 		DPRINTK("over\n");
diff --git a/drivers/base/core.c b/drivers/base/core.c
index bb5806a2bd4c..792b92439b77 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4260,6 +4260,7 @@ static inline bool fwnode_is_primary(struct fwnode_handle *fwnode)
  */
 void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
 {
+	struct device *parent = dev->parent;
 	struct fwnode_handle *fn = dev->fwnode;
 
 	if (fwnode) {
@@ -4274,7 +4275,8 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
 	} else {
 		if (fwnode_is_primary(fn)) {
 			dev->fwnode = fn->secondary;
-			fn->secondary = NULL;
+			if (!(parent && fn == parent->fwnode))
+				fn->secondary = ERR_PTR(-ENODEV);
 		} else {
 			dev->fwnode = NULL;
 		}
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 63b9714a0154..b0ec2721f55d 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -470,14 +470,12 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv,
 	int i, len;
 	int rc = -ENOENT;
 	char *path;
-	enum kernel_read_file_id id = READING_FIRMWARE;
 	size_t msize = INT_MAX;
 	void *buffer = NULL;
 
 	/* Already populated data member means we're loading into a buffer */
 	if (!decompress && fw_priv->data) {
 		buffer = fw_priv->data;
-		id = READING_FIRMWARE_PREALLOC_BUFFER;
 		msize = fw_priv->allocated_size;
 	}
 
@@ -501,7 +499,8 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv,
 
 		/* load firmware files from the mount namespace of init */
 		rc = kernel_read_file_from_path_initns(path, &buffer,
-						       &size, msize, id);
+						       &size, msize,
+						       READING_FIRMWARE);
 		if (rc) {
 			if (rc != -ENOENT)
 				dev_warn(device, "loading %s failed with error %d\n",
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 8143210a5c54..6f605f7820bb 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -291,8 +291,7 @@ static int rpm_get_suppliers(struct device *dev)
 				device_links_read_lock_held()) {
 		int retval;
 
-		if (!(link->flags & DL_FLAG_PM_RUNTIME) ||
-		    READ_ONCE(link->status) == DL_STATE_SUPPLIER_UNBIND)
+		if (!(link->flags & DL_FLAG_PM_RUNTIME))
 			continue;
 
 		retval = pm_runtime_get_sync(link->supplier);
@@ -312,8 +311,6 @@ static void rpm_put_suppliers(struct device *dev)
 
 	list_for_each_entry_rcu(link, &dev->links.suppliers, c_node,
 				device_links_read_lock_held()) {
-		if (READ_ONCE(link->status) == DL_STATE_SUPPLIER_UNBIND)
-			continue;
 
 		while (refcount_dec_not_one(&link->rpm_active))
 			pm_runtime_put(link->supplier);
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index edf8b632e3d2..f46e26c9d9b3 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -801,9 +801,9 @@ static void recv_work(struct work_struct *work)
 		if (likely(!blk_should_fake_timeout(rq->q)))
 			blk_mq_complete_request(rq);
 	}
+	nbd_config_put(nbd);
 	atomic_dec(&config->recv_threads);
 	wake_up(&config->recv_wq);
-	nbd_config_put(nbd);
 	kfree(args);
 }
 
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h
index daed4a9c3436..28099be50395 100644
--- a/drivers/block/null_blk.h
+++ b/drivers/block/null_blk.h
@@ -44,6 +44,7 @@ struct nullb_device {
 	unsigned int nr_zones;
 	struct blk_zone *zones;
 	sector_t zone_size_sects;
+	spinlock_t zone_lock;
 
 	unsigned long size; /* device size in MB */
 	unsigned long completion_nsec; /* time in ns to complete a request */
diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c
index 3d25c9ad2383..e8d8b13aaa5a 100644
--- a/drivers/block/null_blk_zoned.c
+++ b/drivers/block/null_blk_zoned.c
@@ -45,6 +45,7 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
 	if (!dev->zones)
 		return -ENOMEM;
 
+	spin_lock_init(&dev->zone_lock);
 	if (dev->zone_nr_conv >= dev->nr_zones) {
 		dev->zone_nr_conv = dev->nr_zones - 1;
 		pr_info("changed the number of conventional zones to %u",
@@ -131,8 +132,11 @@ int null_report_zones(struct gendisk *disk, sector_t sector,
 		 * So use a local copy to avoid corruption of the device zone
 		 * array.
 		 */
+		spin_lock_irq(&dev->zone_lock);
 		memcpy(&zone, &dev->zones[first_zone + i],
 		       sizeof(struct blk_zone));
+		spin_unlock_irq(&dev->zone_lock);
+
 		error = cb(&zone, i, data);
 		if (error)
 			return error;
@@ -277,18 +281,28 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
 blk_status_t null_process_zoned_cmd(struct nullb_cmd *cmd, enum req_opf op,
 				    sector_t sector, sector_t nr_sectors)
 {
+	blk_status_t sts;
+	struct nullb_device *dev = cmd->nq->dev;
+
+	spin_lock_irq(&dev->zone_lock);
 	switch (op) {
 	case REQ_OP_WRITE:
-		return null_zone_write(cmd, sector, nr_sectors, false);
+		sts = null_zone_write(cmd, sector, nr_sectors, false);
+		break;
 	case REQ_OP_ZONE_APPEND:
-		return null_zone_write(cmd, sector, nr_sectors, true);
+		sts = null_zone_write(cmd, sector, nr_sectors, true);
+		break;
 	case REQ_OP_ZONE_RESET:
 	case REQ_OP_ZONE_RESET_ALL:
 	case REQ_OP_ZONE_OPEN:
 	case REQ_OP_ZONE_CLOSE:
 	case REQ_OP_ZONE_FINISH:
-		return null_zone_mgmt(cmd, op, sector);
+		sts = null_zone_mgmt(cmd, op, sector);
+		break;
 	default:
-		return null_process_cmd(cmd, op, sector, nr_sectors);
+		sts = null_process_cmd(cmd, op, sector, nr_sectors);
 	}
+	spin_unlock_irq(&dev->zone_lock);
+
+	return sts;
 }
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index adfc9352351d..501e9dacfff9 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -201,7 +201,7 @@ static inline void shrink_free_pagepool(struct xen_blkif_ring *ring, int num)
 
 #define vaddr(page) ((unsigned long)pfn_to_kaddr(page_to_pfn(page)))
 
-static int do_block_io_op(struct xen_blkif_ring *ring);
+static int do_block_io_op(struct xen_blkif_ring *ring, unsigned int *eoi_flags);
 static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
 				struct blkif_request *req,
 				struct pending_req *pending_req);
@@ -612,6 +612,8 @@ int xen_blkif_schedule(void *arg)
 	struct xen_vbd *vbd = &blkif->vbd;
 	unsigned long timeout;
 	int ret;
+	bool do_eoi;
+	unsigned int eoi_flags = XEN_EOI_FLAG_SPURIOUS;
 
 	set_freezable();
 	while (!kthread_should_stop()) {
@@ -636,16 +638,23 @@ int xen_blkif_schedule(void *arg)
 		if (timeout == 0)
 			goto purge_gnt_list;
 
+		do_eoi = ring->waiting_reqs;
+
 		ring->waiting_reqs = 0;
 		smp_mb(); /* clear flag *before* checking for work */
 
-		ret = do_block_io_op(ring);
+		ret = do_block_io_op(ring, &eoi_flags);
 		if (ret > 0)
 			ring->waiting_reqs = 1;
 		if (ret == -EACCES)
 			wait_event_interruptible(ring->shutdown_wq,
 						 kthread_should_stop());
 
+		if (do_eoi && !ring->waiting_reqs) {
+			xen_irq_lateeoi(ring->irq, eoi_flags);
+			eoi_flags |= XEN_EOI_FLAG_SPURIOUS;
+		}
+
 purge_gnt_list:
 		if (blkif->vbd.feature_gnt_persistent &&
 		    time_after(jiffies, ring->next_lru)) {
@@ -1121,7 +1130,7 @@ static void end_block_io_op(struct bio *bio)
  * and transmute  it to the block API to hand it over to the proper block disk.
  */
 static int
-__do_block_io_op(struct xen_blkif_ring *ring)
+__do_block_io_op(struct xen_blkif_ring *ring, unsigned int *eoi_flags)
 {
 	union blkif_back_rings *blk_rings = &ring->blk_rings;
 	struct blkif_request req;
@@ -1144,6 +1153,9 @@ __do_block_io_op(struct xen_blkif_ring *ring)
 		if (RING_REQUEST_CONS_OVERFLOW(&blk_rings->common, rc))
 			break;
 
+		/* We've seen a request, so clear spurious eoi flag. */
+		*eoi_flags &= ~XEN_EOI_FLAG_SPURIOUS;
+
 		if (kthread_should_stop()) {
 			more_to_do = 1;
 			break;
@@ -1202,13 +1214,13 @@ __do_block_io_op(struct xen_blkif_ring *ring)
 }
 
 static int
-do_block_io_op(struct xen_blkif_ring *ring)
+do_block_io_op(struct xen_blkif_ring *ring, unsigned int *eoi_flags)
 {
 	union blkif_back_rings *blk_rings = &ring->blk_rings;
 	int more_to_do;
 
 	do {
-		more_to_do = __do_block_io_op(ring);
+		more_to_do = __do_block_io_op(ring, eoi_flags);
 		if (more_to_do)
 			break;
 
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index b9aa5d1ac10b..5e7c36d73dc6 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -246,9 +246,8 @@ static int xen_blkif_map(struct xen_blkif_ring *ring, grant_ref_t *gref,
 	if (req_prod - rsp_prod > size)
 		goto fail;
 
-	err = bind_interdomain_evtchn_to_irqhandler(blkif->domid, evtchn,
-						    xen_blkif_be_int, 0,
-						    "blkif-backend", ring);
+	err = bind_interdomain_evtchn_to_irqhandler_lateeoi(blkif->domid,
+			evtchn, xen_blkif_be_int, 0, "blkif-backend", ring);
 	if (err < 0)
 		goto fail;
 	ring->irq = err;
diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c
index a30b53f1d87d..305015486b91 100644
--- a/drivers/bus/fsl-mc/mc-io.c
+++ b/drivers/bus/fsl-mc/mc-io.c
@@ -129,7 +129,12 @@ int __must_check fsl_create_mc_io(struct device *dev,
  */
 void fsl_destroy_mc_io(struct fsl_mc_io *mc_io)
 {
-	struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
+	struct fsl_mc_device *dpmcp_dev;
+
+	if (!mc_io)
+		return;
+
+	dpmcp_dev = mc_io->dpmcp_dev;
 
 	if (dpmcp_dev)
 		fsl_mc_io_unset_dpmcp(mc_io);
diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c
index 796098078083..661d704c8093 100644
--- a/drivers/bus/mhi/core/pm.c
+++ b/drivers/bus/mhi/core/pm.c
@@ -686,7 +686,8 @@ int mhi_pm_suspend(struct mhi_controller *mhi_cntrl)
 		return -EIO;
 
 	/* Return busy if there are any pending resources */
-	if (atomic_read(&mhi_cntrl->dev_wake))
+	if (atomic_read(&mhi_cntrl->dev_wake) ||
+	    atomic_read(&mhi_cntrl->pending_pkts))
 		return -EBUSY;
 
 	/* Take MHI out of M2 state */
@@ -712,7 +713,8 @@ int mhi_pm_suspend(struct mhi_controller *mhi_cntrl)
 
 	write_lock_irq(&mhi_cntrl->pm_lock);
 
-	if (atomic_read(&mhi_cntrl->dev_wake)) {
+	if (atomic_read(&mhi_cntrl->dev_wake) ||
+	    atomic_read(&mhi_cntrl->pending_pkts)) {
 		write_unlock_irq(&mhi_cntrl->pm_lock);
 		return -EBUSY;
 	}
diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c
index ee56306f79d5..700b7f44f671 100644
--- a/drivers/clk/ti/clockdomain.c
+++ b/drivers/clk/ti/clockdomain.c
@@ -148,10 +148,12 @@ static void __init of_ti_clockdomain_setup(struct device_node *node)
 		if (!omap2_clk_is_hw_omap(clk_hw)) {
 			pr_warn("can't setup clkdm for basic clk %s\n",
 				__clk_get_name(clk));
+			clk_put(clk);
 			continue;
 		}
 		to_clk_hw_omap(clk_hw)->clkdm_name = clkdm_name;
 		omap2_init_clk_clkdm(clk_hw);
+		clk_put(clk);
 	}
 }
 
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 2c7171e0b001..85de313ddec2 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -71,6 +71,7 @@ config CPU_FREQ_DEFAULT_GOV_USERSPACE
 
 config CPU_FREQ_DEFAULT_GOV_ONDEMAND
 	bool "ondemand"
+	depends on !(X86_INTEL_PSTATE && SMP)
 	select CPU_FREQ_GOV_ONDEMAND
 	select CPU_FREQ_GOV_PERFORMANCE
 	help
@@ -83,6 +84,7 @@ config CPU_FREQ_DEFAULT_GOV_ONDEMAND
 
 config CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
 	bool "conservative"
+	depends on !(X86_INTEL_PSTATE && SMP)
 	select CPU_FREQ_GOV_CONSERVATIVE
 	select CPU_FREQ_GOV_PERFORMANCE
 	help
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index e4ff681faaaa..1e4fbb002a31 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -691,7 +691,8 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		cpumask_copy(policy->cpus, topology_core_cpumask(cpu));
 	}
 
-	if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) {
+	if (check_amd_hwpstate_cpu(cpu) && boot_cpu_data.x86 < 0x19 &&
+	    !acpi_pstate_strict) {
 		cpumask_clear(policy->cpus);
 		cpumask_set_cpu(cpu, policy->cpus);
 		cpumask_copy(data->freqdomain_cpus,
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index dade36725b8f..e97ff004ac6a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1903,6 +1903,18 @@ void cpufreq_resume(void)
 	}
 }
 
+/**
+ * cpufreq_driver_test_flags - Test cpufreq driver's flags against given ones.
+ * @flags: Flags to test against the current cpufreq driver's flags.
+ *
+ * Assumes that the driver is there, so callers must ensure that this is the
+ * case.
+ */
+bool cpufreq_driver_test_flags(u16 flags)
+{
+	return !!(cpufreq_driver->flags & flags);
+}
+
 /**
  *	cpufreq_get_current_driver - return current driver's name
  *
@@ -2166,7 +2178,8 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 	 * exactly same freq is called again and so we can save on few function
 	 * calls.
 	 */
-	if (target_freq == policy->cur)
+	if (target_freq == policy->cur &&
+	    !(cpufreq_driver->flags & CPUFREQ_NEED_UPDATE_LIMITS))
 		return 0;
 
 	/* Save last value to restore later on errors */
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 9a515c460a00..ef15ec4959c5 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2550,14 +2550,12 @@ static int intel_cpufreq_update_pstate(struct cpudata *cpu, int target_pstate,
 	int old_pstate = cpu->pstate.current_pstate;
 
 	target_pstate = intel_pstate_prepare_request(cpu, target_pstate);
-	if (target_pstate != old_pstate) {
+	if (hwp_active) {
+		intel_cpufreq_adjust_hwp(cpu, target_pstate, fast_switch);
+		cpu->pstate.current_pstate = target_pstate;
+	} else if (target_pstate != old_pstate) {
+		intel_cpufreq_adjust_perf_ctl(cpu, target_pstate, fast_switch);
 		cpu->pstate.current_pstate = target_pstate;
-		if (hwp_active)
-			intel_cpufreq_adjust_hwp(cpu, target_pstate,
-						 fast_switch);
-		else
-			intel_cpufreq_adjust_perf_ctl(cpu, target_pstate,
-						      fast_switch);
 	}
 
 	intel_cpufreq_trace(cpu, fast_switch ? INTEL_PSTATE_TRACE_FAST_SWITCH :
@@ -3014,6 +3012,7 @@ static int __init intel_pstate_init(void)
 			hwp_mode_bdw = id->driver_data;
 			intel_pstate.attr = hwp_cpufreq_attrs;
 			intel_cpufreq.attr = hwp_cpufreq_attrs;
+			intel_cpufreq.flags |= CPUFREQ_NEED_UPDATE_LIMITS;
 			if (!default_driver)
 				default_driver = &intel_pstate;
 
diff --git a/drivers/cpufreq/sti-cpufreq.c b/drivers/cpufreq/sti-cpufreq.c
index a5ad96d29adc..4ac6fb23792a 100644
--- a/drivers/cpufreq/sti-cpufreq.c
+++ b/drivers/cpufreq/sti-cpufreq.c
@@ -141,7 +141,8 @@ static const struct reg_field sti_stih407_dvfs_regfields[DVFS_MAX_REGFIELDS] = {
 static const struct reg_field *sti_cpufreq_match(void)
 {
 	if (of_machine_is_compatible("st,stih407") ||
-	    of_machine_is_compatible("st,stih410"))
+	    of_machine_is_compatible("st,stih410") ||
+	    of_machine_is_compatible("st,stih418"))
 		return sti_stih407_dvfs_regfields;
 
 	return NULL;
@@ -258,7 +259,8 @@ static int sti_cpufreq_init(void)
 	int ret;
 
 	if ((!of_machine_is_compatible("st,stih407")) &&
-		(!of_machine_is_compatible("st,stih410")))
+		(!of_machine_is_compatible("st,stih410")) &&
+		(!of_machine_is_compatible("st,stih418")))
 		return -ENODEV;
 
 	ddata.cpu = get_cpu_device(0);
diff --git a/drivers/cpuidle/cpuidle-tegra.c b/drivers/cpuidle/cpuidle-tegra.c
index a12fb141875a..e8956706a291 100644
--- a/drivers/cpuidle/cpuidle-tegra.c
+++ b/drivers/cpuidle/cpuidle-tegra.c
@@ -172,7 +172,7 @@ static int tegra_cpuidle_coupled_barrier(struct cpuidle_device *dev)
 static int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
 				     int index, unsigned int cpu)
 {
-	int ret;
+	int err;
 
 	/*
 	 * CC6 state is the "CPU cluster power-off" state.  In order to
@@ -183,9 +183,9 @@ static int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
 	 * CPU cores, GIC and L2 cache).
 	 */
 	if (index == TEGRA_CC6) {
-		ret = tegra_cpuidle_coupled_barrier(dev);
-		if (ret)
-			return ret;
+		err = tegra_cpuidle_coupled_barrier(dev);
+		if (err)
+			return err;
 	}
 
 	local_fiq_disable();
@@ -194,15 +194,15 @@ static int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
 
 	switch (index) {
 	case TEGRA_C7:
-		ret = tegra_cpuidle_c7_enter();
+		err = tegra_cpuidle_c7_enter();
 		break;
 
 	case TEGRA_CC6:
-		ret = tegra_cpuidle_cc6_enter(cpu);
+		err = tegra_cpuidle_cc6_enter(cpu);
 		break;
 
 	default:
-		ret = -EINVAL;
+		err = -EINVAL;
 		break;
 	}
 
@@ -210,7 +210,7 @@ static int tegra_cpuidle_state_enter(struct cpuidle_device *dev,
 	tegra_pm_clear_cpu_in_lp2();
 	local_fiq_enable();
 
-	return ret;
+	return err ?: index;
 }
 
 static int tegra_cpuidle_adjust_state_index(int index, unsigned int cpu)
@@ -236,21 +236,27 @@ static int tegra_cpuidle_enter(struct cpuidle_device *dev,
 			       int index)
 {
 	unsigned int cpu = cpu_logical_map(dev->cpu);
-	int err;
+	int ret;
 
 	index = tegra_cpuidle_adjust_state_index(index, cpu);
 	if (dev->states_usage[index].disable)
 		return -1;
 
 	if (index == TEGRA_C1)
-		err = arm_cpuidle_simple_enter(dev, drv, index);
+		ret = arm_cpuidle_simple_enter(dev, drv, index);
 	else
-		err = tegra_cpuidle_state_enter(dev, index, cpu);
+		ret = tegra_cpuidle_state_enter(dev, index, cpu);
 
-	if (err && (err != -EINTR || index != TEGRA_CC6))
-		pr_err_once("failed to enter state %d err: %d\n", index, err);
+	if (ret < 0) {
+		if (ret != -EINTR || index != TEGRA_CC6)
+			pr_err_once("failed to enter state %d err: %d\n",
+				    index, ret);
+		index = -1;
+	} else {
+		index = ret;
+	}
 
-	return err ? -1 : index;
+	return index;
 }
 
 static int tegra114_enter_s2idle(struct cpuidle_device *dev,
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 8beed91428bd..a608efaa435f 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -639,11 +639,11 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
 	unsigned long flags;
 	unsigned long residue = 0;
 
+	spin_lock_irqsave(&jzchan->vchan.lock, flags);
+
 	status = dma_cookie_status(chan, cookie, txstate);
 	if ((status == DMA_COMPLETE) || (txstate == NULL))
-		return status;
-
-	spin_lock_irqsave(&jzchan->vchan.lock, flags);
+		goto out_unlock_irqrestore;
 
 	vdesc = vchan_find_desc(&jzchan->vchan, cookie);
 	if (vdesc) {
@@ -660,6 +660,7 @@ static enum dma_status jz4780_dma_tx_status(struct dma_chan *chan,
 	    && jzchan->desc->status & (JZ_DMA_DCS_AR | JZ_DMA_DCS_HLT))
 		status = DMA_ERROR;
 
+out_unlock_irqrestore:
 	spin_unlock_irqrestore(&jzchan->vchan.lock, flags);
 	return status;
 }
diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
index d1c997599390..5f5252752644 100644
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -127,7 +127,7 @@ static void ptn5150_irq_work(struct work_struct *work)
 			case PTN5150_DFP_ATTACHED:
 				extcon_set_state_sync(info->edev,
 						EXTCON_USB_HOST, false);
-				gpiod_set_value(info->vbus_gpiod, 0);
+				gpiod_set_value_cansleep(info->vbus_gpiod, 0);
 				extcon_set_state_sync(info->edev, EXTCON_USB,
 						true);
 				break;
@@ -138,9 +138,9 @@ static void ptn5150_irq_work(struct work_struct *work)
 					PTN5150_REG_CC_VBUS_DETECTION_MASK) >>
 					PTN5150_REG_CC_VBUS_DETECTION_SHIFT);
 				if (vbus)
-					gpiod_set_value(info->vbus_gpiod, 0);
+					gpiod_set_value_cansleep(info->vbus_gpiod, 0);
 				else
-					gpiod_set_value(info->vbus_gpiod, 1);
+					gpiod_set_value_cansleep(info->vbus_gpiod, 1);
 
 				extcon_set_state_sync(info->edev,
 						EXTCON_USB_HOST, true);
@@ -156,7 +156,7 @@ static void ptn5150_irq_work(struct work_struct *work)
 					EXTCON_USB_HOST, false);
 			extcon_set_state_sync(info->edev,
 					EXTCON_USB, false);
-			gpiod_set_value(info->vbus_gpiod, 0);
+			gpiod_set_value_cansleep(info->vbus_gpiod, 0);
 		}
 	}
 
diff --git a/drivers/firmware/arm_scmi/base.c b/drivers/firmware/arm_scmi/base.c
index 9853bd3c4d45..017e5d8bd869 100644
--- a/drivers/firmware/arm_scmi/base.c
+++ b/drivers/firmware/arm_scmi/base.c
@@ -197,6 +197,8 @@ static int scmi_base_implementation_list_get(const struct scmi_handle *handle,
 			protocols_imp[tot_num_ret + loop] = *(list + loop);
 
 		tot_num_ret += loop_num_ret;
+
+		scmi_reset_rx_to_maxsz(handle, t);
 	} while (loop_num_ret);
 
 	scmi_xfer_put(handle, t);
diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c
index db55c43a2cbd..1377ec76a45d 100644
--- a/drivers/firmware/arm_scmi/bus.c
+++ b/drivers/firmware/arm_scmi/bus.c
@@ -230,7 +230,7 @@ static void scmi_devices_unregister(void)
 	bus_for_each_dev(&scmi_bus_type, NULL, NULL, __scmi_devices_unregister);
 }
 
-static int __init scmi_bus_init(void)
+int __init scmi_bus_init(void)
 {
 	int retval;
 
@@ -240,12 +240,10 @@ static int __init scmi_bus_init(void)
 
 	return retval;
 }
-subsys_initcall(scmi_bus_init);
 
-static void __exit scmi_bus_exit(void)
+void __exit scmi_bus_exit(void)
 {
 	scmi_devices_unregister();
 	bus_unregister(&scmi_bus_type);
 	ida_destroy(&scmi_bus_id);
 }
-module_exit(scmi_bus_exit);
diff --git a/drivers/firmware/arm_scmi/clock.c b/drivers/firmware/arm_scmi/clock.c
index 75e39882746e..fa3ad3a150c3 100644
--- a/drivers/firmware/arm_scmi/clock.c
+++ b/drivers/firmware/arm_scmi/clock.c
@@ -192,6 +192,8 @@ scmi_clock_describe_rates_get(const struct scmi_handle *handle, u32 clk_id,
 		}
 
 		tot_rate_cnt += num_returned;
+
+		scmi_reset_rx_to_maxsz(handle, t);
 		/*
 		 * check for both returned and remaining to avoid infinite
 		 * loop due to buggy firmware
diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index c113e578cc6c..124080955c4a 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -147,6 +147,8 @@ int scmi_do_xfer_with_response(const struct scmi_handle *h,
 			       struct scmi_xfer *xfer);
 int scmi_xfer_get_init(const struct scmi_handle *h, u8 msg_id, u8 prot_id,
 		       size_t tx_size, size_t rx_size, struct scmi_xfer **p);
+void scmi_reset_rx_to_maxsz(const struct scmi_handle *handle,
+			    struct scmi_xfer *xfer);
 int scmi_handle_put(const struct scmi_handle *handle);
 struct scmi_handle *scmi_handle_get(struct device *dev);
 void scmi_set_handle(struct scmi_device *scmi_dev);
@@ -156,6 +158,9 @@ void scmi_setup_protocol_implemented(const struct scmi_handle *handle,
 
 int scmi_base_protocol_init(struct scmi_handle *h);
 
+int __init scmi_bus_init(void);
+void __exit scmi_bus_exit(void);
+
 /* SCMI Transport */
 /**
  * struct scmi_chan_info - Structure representing a SCMI channel information
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 03ec74242c14..5c2f4fab4099 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -402,6 +402,14 @@ int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer)
 	return ret;
 }
 
+void scmi_reset_rx_to_maxsz(const struct scmi_handle *handle,
+			    struct scmi_xfer *xfer)
+{
+	struct scmi_info *info = handle_to_scmi_info(handle);
+
+	xfer->rx.len = info->desc->max_msg_size;
+}
+
 #define SCMI_MAX_RESPONSE_TIMEOUT	(2 * MSEC_PER_SEC)
 
 /**
@@ -928,7 +936,21 @@ static struct platform_driver scmi_driver = {
 	.remove = scmi_remove,
 };
 
-module_platform_driver(scmi_driver);
+static int __init scmi_driver_init(void)
+{
+	scmi_bus_init();
+
+	return platform_driver_register(&scmi_driver);
+}
+module_init(scmi_driver_init);
+
+static void __exit scmi_driver_exit(void)
+{
+	scmi_bus_exit();
+
+	platform_driver_unregister(&scmi_driver);
+}
+module_exit(scmi_driver_exit);
 
 MODULE_ALIAS("platform: arm-scmi");
 MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
diff --git a/drivers/firmware/arm_scmi/notify.c b/drivers/firmware/arm_scmi/notify.c
index 4731daaacd19..51c5a376fb47 100644
--- a/drivers/firmware/arm_scmi/notify.c
+++ b/drivers/firmware/arm_scmi/notify.c
@@ -1403,15 +1403,21 @@ static void scmi_protocols_late_init(struct work_struct *work)
 				"finalized PENDING handler - key:%X\n",
 				hndl->key);
 			ret = scmi_event_handler_enable_events(hndl);
+			if (ret) {
+				dev_dbg(ni->handle->dev,
+					"purging INVALID handler - key:%X\n",
+					hndl->key);
+				scmi_put_active_handler(ni, hndl);
+			}
 		} else {
 			ret = scmi_valid_pending_handler(ni, hndl);
-		}
-		if (ret) {
-			dev_dbg(ni->handle->dev,
-				"purging PENDING handler - key:%X\n",
-				hndl->key);
-			/* this hndl can be only a pending one */
-			scmi_put_handler_unlocked(ni, hndl);
+			if (ret) {
+				dev_dbg(ni->handle->dev,
+					"purging PENDING handler - key:%X\n",
+					hndl->key);
+				/* this hndl can be only a pending one */
+				scmi_put_handler_unlocked(ni, hndl);
+			}
 		}
 	}
 	mutex_unlock(&ni->pending_mtx);
@@ -1468,7 +1474,7 @@ int scmi_notification_init(struct scmi_handle *handle)
 	ni->gid = gid;
 	ni->handle = handle;
 
-	ni->notify_wq = alloc_workqueue("scmi_notify",
+	ni->notify_wq = alloc_workqueue(dev_name(handle->dev),
 					WQ_UNBOUND | WQ_FREEZABLE | WQ_SYSFS,
 					0);
 	if (!ni->notify_wq)
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 3e1e87012c95..3e8b548a12b6 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -304,6 +304,8 @@ scmi_perf_describe_levels_get(const struct scmi_handle *handle, u32 domain,
 		}
 
 		tot_opp_cnt += num_returned;
+
+		scmi_reset_rx_to_maxsz(handle, t);
 		/*
 		 * check for both returned and remaining to avoid infinite
 		 * loop due to buggy firmware
diff --git a/drivers/firmware/arm_scmi/reset.c b/drivers/firmware/arm_scmi/reset.c
index 3691bafca057..86bda46de8eb 100644
--- a/drivers/firmware/arm_scmi/reset.c
+++ b/drivers/firmware/arm_scmi/reset.c
@@ -36,9 +36,7 @@ struct scmi_msg_reset_domain_reset {
 #define EXPLICIT_RESET_ASSERT	BIT(1)
 #define ASYNCHRONOUS_RESET	BIT(2)
 	__le32 reset_state;
-#define ARCH_RESET_TYPE		BIT(31)
-#define COLD_RESET_STATE	BIT(0)
-#define ARCH_COLD_RESET		(ARCH_RESET_TYPE | COLD_RESET_STATE)
+#define ARCH_COLD_RESET		0
 };
 
 struct scmi_msg_reset_notify {
diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c
index 1af0ad362e82..4beee439b84b 100644
--- a/drivers/firmware/arm_scmi/sensors.c
+++ b/drivers/firmware/arm_scmi/sensors.c
@@ -166,6 +166,8 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle,
 		}
 
 		desc_index += num_returned;
+
+		scmi_reset_rx_to_maxsz(handle, t);
 		/*
 		 * check for both returned and remaining to avoid infinite
 		 * loop due to buggy firmware
diff --git a/drivers/firmware/arm_scmi/smc.c b/drivers/firmware/arm_scmi/smc.c
index a1537d123e38..22f83af6853a 100644
--- a/drivers/firmware/arm_scmi/smc.c
+++ b/drivers/firmware/arm_scmi/smc.c
@@ -149,6 +149,6 @@ static struct scmi_transport_ops scmi_smc_ops = {
 const struct scmi_desc scmi_smc_desc = {
 	.ops = &scmi_smc_ops,
 	.max_rx_timeout_ms = 30,
-	.max_msg = 1,
+	.max_msg = 20,
 	.max_msg_size = 128,
 };
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 8842c55d4490..fc695126b6e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -46,7 +46,7 @@ const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM] = {
 static int amdgpu_ctx_priority_permit(struct drm_file *filp,
 				      enum drm_sched_priority priority)
 {
-	if (priority < 0 || priority >= DRM_SCHED_PRIORITY_MAX)
+	if (priority < 0 || priority >= DRM_SCHED_PRIORITY_COUNT)
 		return -EINVAL;
 
 	/* NORMAL and below are accessible by everyone */
@@ -65,7 +65,7 @@ static int amdgpu_ctx_priority_permit(struct drm_file *filp,
 static enum gfx_pipe_priority amdgpu_ctx_sched_prio_to_compute_prio(enum drm_sched_priority prio)
 {
 	switch (prio) {
-	case DRM_SCHED_PRIORITY_HIGH_HW:
+	case DRM_SCHED_PRIORITY_HIGH:
 	case DRM_SCHED_PRIORITY_KERNEL:
 		return AMDGPU_GFX_PIPE_PRIO_HIGH;
 	default:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index d0b8d0d341af..b4a8da8fc8fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3316,10 +3316,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 		flush_delayed_work(&adev->delayed_init_work);
 
 	r = sysfs_create_files(&adev->dev->kobj, amdgpu_dev_attributes);
-	if (r) {
+	if (r)
 		dev_err(adev->dev, "Could not create amdgpu device attr\n");
-		return r;
-	}
 
 	if (IS_ENABLED(CONFIG_PERF_EVENTS))
 		r = amdgpu_pmu_init(adev);
@@ -4376,7 +4374,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
 retry:	/* Rest of adevs pre asic reset from XGMI hive. */
 	list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
 		r = amdgpu_device_pre_asic_reset(tmp_adev,
-						 NULL,
+						 (tmp_adev == adev) ? job : NULL,
 						 &need_full_reset);
 		/*TODO Should we stop ?*/
 		if (r) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7f9e50247413..fb3fa9b27d53 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -596,6 +596,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 	struct ww_acquire_ctx ticket;
 	struct list_head list, duplicates;
 	uint64_t va_flags;
+	uint64_t vm_size;
 	int r = 0;
 
 	if (args->va_address < AMDGPU_VA_RESERVED_SIZE) {
@@ -616,6 +617,15 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 
 	args->va_address &= AMDGPU_GMC_HOLE_MASK;
 
+	vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
+	vm_size -= AMDGPU_VA_RESERVED_SIZE;
+	if (args->va_address + args->map_size > vm_size) {
+		dev_dbg(&dev->pdev->dev,
+			"va_address 0x%llx is in top reserved area 0x%llx\n",
+			args->va_address + args->map_size, vm_size);
+		return -EINVAL;
+	}
+
 	if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) {
 		dev_dbg(&dev->pdev->dev, "invalid flags combination 0x%08X\n",
 			args->flags);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 937029ad5271..dcfe8a3b03ff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -251,7 +251,7 @@ void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
 	int i;
 
 	/* Signal all jobs not yet scheduled */
-	for (i = DRM_SCHED_PRIORITY_MAX - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
+	for (i = DRM_SCHED_PRIORITY_COUNT - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
 		struct drm_sched_rq *rq = &sched->sched_rq[i];
 
 		if (!rq)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 06757681b2ce..f1cae42dcc36 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -206,7 +206,8 @@ static int psp_sw_fini(void *handle)
 		adev->psp.ta_fw = NULL;
 	}
 
-	if (adev->asic_type == CHIP_NAVI10)
+	if (adev->asic_type == CHIP_NAVI10 ||
+	    adev->asic_type == CHIP_SIENNA_CICHLID)
 		psp_sysfs_fini(adev);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 1bedb416eebd..b4fb5a473df5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -367,12 +367,19 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user *
 static ssize_t amdgpu_ras_debugfs_eeprom_write(struct file *f, const char __user *buf,
 		size_t size, loff_t *pos)
 {
-	struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+	struct amdgpu_device *adev =
+		(struct amdgpu_device *)file_inode(f)->i_private;
 	int ret;
 
-	ret = amdgpu_ras_eeprom_reset_table(&adev->psp.ras.ras->eeprom_control);
+	ret = amdgpu_ras_eeprom_reset_table(
+			&(amdgpu_ras_get_context(adev)->eeprom_control));
 
-	return ret == 1 ? size : -EIO;
+	if (ret == 1) {
+		amdgpu_ras_get_context(adev)->flags = RAS_DEFAULT_FLAGS;
+		return size;
+	} else {
+		return -EIO;
+	}
 }
 
 static const struct file_operations amdgpu_ras_debugfs_ctrl_ops = {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 13ea8ebc421c..6d4fc79bf84a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -267,7 +267,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 			&ring->sched;
 	}
 
-	for (i = 0; i < DRM_SCHED_PRIORITY_MAX; ++i)
+	for (i = DRM_SCHED_PRIORITY_MIN; i < DRM_SCHED_PRIORITY_COUNT; ++i)
 		atomic_set(&ring->num_jobs[i], 0);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index da871d84b742..7112137689db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -243,7 +243,7 @@ struct amdgpu_ring {
 	bool			has_compute_vm_bug;
 	bool			no_scheduler;
 
-	atomic_t		num_jobs[DRM_SCHED_PRIORITY_MAX];
+	atomic_t		num_jobs[DRM_SCHED_PRIORITY_COUNT];
 	struct mutex		priority_mutex;
 	/* protected by priority_mutex */
 	int			priority;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
index c799691dfa84..17661ede9488 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
@@ -36,14 +36,14 @@ enum drm_sched_priority amdgpu_to_sched_priority(int amdgpu_priority)
 {
 	switch (amdgpu_priority) {
 	case AMDGPU_CTX_PRIORITY_VERY_HIGH:
-		return DRM_SCHED_PRIORITY_HIGH_HW;
+		return DRM_SCHED_PRIORITY_HIGH;
 	case AMDGPU_CTX_PRIORITY_HIGH:
-		return DRM_SCHED_PRIORITY_HIGH_SW;
+		return DRM_SCHED_PRIORITY_HIGH;
 	case AMDGPU_CTX_PRIORITY_NORMAL:
 		return DRM_SCHED_PRIORITY_NORMAL;
 	case AMDGPU_CTX_PRIORITY_LOW:
 	case AMDGPU_CTX_PRIORITY_VERY_LOW:
-		return DRM_SCHED_PRIORITY_LOW;
+		return DRM_SCHED_PRIORITY_MIN;
 	case AMDGPU_CTX_PRIORITY_UNSET:
 		return DRM_SCHED_PRIORITY_UNSET;
 	default:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 978bae731398..b7fd0cdffce0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2101,7 +2101,7 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
 		ring = adev->mman.buffer_funcs_ring;
 		sched = &ring->sched;
 		r = drm_sched_entity_init(&adev->mman.entity,
-				          DRM_SCHED_PRIORITY_KERNEL, &sched,
+					  DRM_SCHED_PRIORITY_KERNEL, &sched,
 					  1, NULL);
 		if (r) {
 			DRM_ERROR("Failed setting up TTM BO move entity (%d)\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 495c3d7bb2b2..f3b7287e84c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -68,6 +68,7 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
 
 	INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler);
 	mutex_init(&adev->vcn.vcn_pg_lock);
+	mutex_init(&adev->vcn.vcn1_jpeg1_workaround);
 	atomic_set(&adev->vcn.total_submission_cnt, 0);
 	for (i = 0; i < adev->vcn.num_vcn_inst; i++)
 		atomic_set(&adev->vcn.inst[i].dpg_enc_submission_cnt, 0);
@@ -237,6 +238,7 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
 	}
 
 	release_firmware(adev->vcn.fw);
+	mutex_destroy(&adev->vcn.vcn1_jpeg1_workaround);
 	mutex_destroy(&adev->vcn.vcn_pg_lock);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index 7a9b804bc988..17691158f783 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -220,6 +220,7 @@ struct amdgpu_vcn {
 	struct amdgpu_vcn_inst	 inst[AMDGPU_MAX_VCN_INSTANCES];
 	struct amdgpu_vcn_reg	 internal;
 	struct mutex		 vcn_pg_lock;
+	struct mutex		vcn1_jpeg1_workaround;
 	atomic_t		 total_submission_cnt;
 
 	unsigned	harvest_config;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 770025a5e500..5b6788fb540a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -112,8 +112,8 @@ struct amdgpu_bo_list_entry;
 #define AMDGPU_MMHUB_0				1
 #define AMDGPU_MMHUB_1				2
 
-/* hardcode that limit for now */
-#define AMDGPU_VA_RESERVED_SIZE			(1ULL << 20)
+/* Reserve 2MB at top/bottom of address space for kernel use */
+#define AMDGPU_VA_RESERVED_SIZE			(2ULL << 20)
 
 /* max vmids dedicated for process */
 #define AMDGPU_VM_MAX_RESERVED_VMID	1
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index f73ce9721233..b1cbb958d5cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -112,6 +112,22 @@
 #define mmCP_HYP_ME_UCODE_DATA			0x5817
 #define mmCP_HYP_ME_UCODE_DATA_BASE_IDX		1
 
+//CC_GC_SA_UNIT_DISABLE
+#define mmCC_GC_SA_UNIT_DISABLE                 0x0fe9
+#define mmCC_GC_SA_UNIT_DISABLE_BASE_IDX        0
+#define CC_GC_SA_UNIT_DISABLE__SA_DISABLE__SHIFT	0x8
+#define CC_GC_SA_UNIT_DISABLE__SA_DISABLE_MASK		0x0000FF00L
+//GC_USER_SA_UNIT_DISABLE
+#define mmGC_USER_SA_UNIT_DISABLE               0x0fea
+#define mmGC_USER_SA_UNIT_DISABLE_BASE_IDX      0
+#define GC_USER_SA_UNIT_DISABLE__SA_DISABLE__SHIFT	0x8
+#define GC_USER_SA_UNIT_DISABLE__SA_DISABLE_MASK	0x0000FF00L
+//PA_SC_ENHANCE_3
+#define mmPA_SC_ENHANCE_3                       0x1085
+#define mmPA_SC_ENHANCE_3_BASE_IDX              0
+#define PA_SC_ENHANCE_3__FORCE_PBB_WORKLOAD_MODE_TO_ZERO__SHIFT 0x3
+#define PA_SC_ENHANCE_3__FORCE_PBB_WORKLOAD_MODE_TO_ZERO_MASK   0x00000008L
+
 MODULE_FIRMWARE("amdgpu/navi10_ce.bin");
 MODULE_FIRMWARE("amdgpu/navi10_pfp.bin");
 MODULE_FIRMWARE("amdgpu/navi10_me.bin");
@@ -3091,6 +3107,7 @@ static const struct soc15_reg_golden golden_settings_gc_10_3[] =
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmGL2C_ADDR_MATCH_MASK, 0xffffffff, 0xffffffcf),
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmGL2C_CM_CTRL1, 0xff8fff0f, 0x580f1008),
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmGL2C_CTRL3, 0xf7ffffff, 0x10f80988),
+	SOC15_REG_GOLDEN_VALUE(GC, 0, mmLDS_CONFIG,  0x00000020, 0x00000020),
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmPA_CL_ENHANCE, 0xf17fffff, 0x01200007),
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmPA_SC_BINNER_TIMEOUT_COUNTER, 0xffffffff, 0x00000800),
 	SOC15_REG_GOLDEN_VALUE(GC, 0, mmPA_SC_ENHANCE_2, 0xffffffbf, 0x00000820),
@@ -3188,6 +3205,8 @@ static int gfx_v10_0_wait_for_rlc_autoload_complete(struct amdgpu_device *adev);
 static void gfx_v10_0_ring_emit_ce_meta(struct amdgpu_ring *ring, bool resume);
 static void gfx_v10_0_ring_emit_de_meta(struct amdgpu_ring *ring, bool resume);
 static void gfx_v10_0_ring_emit_frame_cntl(struct amdgpu_ring *ring, bool start, bool secure);
+static u32 gfx_v10_3_get_disabled_sa(struct amdgpu_device *adev);
+static void gfx_v10_3_program_pbb_mode(struct amdgpu_device *adev);
 
 static void gfx10_kiq_set_resources(struct amdgpu_ring *kiq_ring, uint64_t queue_mask)
 {
@@ -4518,12 +4537,17 @@ static void gfx_v10_0_setup_rb(struct amdgpu_device *adev)
 	int i, j;
 	u32 data;
 	u32 active_rbs = 0;
+	u32 bitmap;
 	u32 rb_bitmap_width_per_sh = adev->gfx.config.max_backends_per_se /
 					adev->gfx.config.max_sh_per_se;
 
 	mutex_lock(&adev->grbm_idx_mutex);
 	for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
 		for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
+			bitmap = i * adev->gfx.config.max_sh_per_se + j;
+			if ((adev->asic_type == CHIP_SIENNA_CICHLID) &&
+			    ((gfx_v10_3_get_disabled_sa(adev) >> bitmap) & 1))
+				continue;
 			gfx_v10_0_select_se_sh(adev, i, j, 0xffffffff);
 			data = gfx_v10_0_get_rb_active_bitmap(adev);
 			active_rbs |= data << ((i * adev->gfx.config.max_sh_per_se + j) *
@@ -6928,6 +6952,9 @@ static int gfx_v10_0_hw_init(void *handle)
 	if (r)
 		return r;
 
+	if (adev->asic_type == CHIP_SIENNA_CICHLID)
+		gfx_v10_3_program_pbb_mode(adev);
+
 	return r;
 }
 
@@ -8739,6 +8766,10 @@ static int gfx_v10_0_get_cu_info(struct amdgpu_device *adev,
 	mutex_lock(&adev->grbm_idx_mutex);
 	for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
 		for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
+			bitmap = i * adev->gfx.config.max_sh_per_se + j;
+			if ((adev->asic_type == CHIP_SIENNA_CICHLID) &&
+			    ((gfx_v10_3_get_disabled_sa(adev) >> bitmap) & 1))
+				continue;
 			mask = 1;
 			ao_bitmap = 0;
 			counter = 0;
@@ -8773,6 +8804,47 @@ static int gfx_v10_0_get_cu_info(struct amdgpu_device *adev,
 	return 0;
 }
 
+static u32 gfx_v10_3_get_disabled_sa(struct amdgpu_device *adev)
+{
+	uint32_t efuse_setting, vbios_setting, disabled_sa, max_sa_mask;
+
+	efuse_setting = RREG32_SOC15(GC, 0, mmCC_GC_SA_UNIT_DISABLE);
+	efuse_setting &= CC_GC_SA_UNIT_DISABLE__SA_DISABLE_MASK;
+	efuse_setting >>= CC_GC_SA_UNIT_DISABLE__SA_DISABLE__SHIFT;
+
+	vbios_setting = RREG32_SOC15(GC, 0, mmGC_USER_SA_UNIT_DISABLE);
+	vbios_setting &= GC_USER_SA_UNIT_DISABLE__SA_DISABLE_MASK;
+	vbios_setting >>= GC_USER_SA_UNIT_DISABLE__SA_DISABLE__SHIFT;
+
+	max_sa_mask = amdgpu_gfx_create_bitmask(adev->gfx.config.max_sh_per_se *
+						adev->gfx.config.max_shader_engines);
+	disabled_sa = efuse_setting | vbios_setting;
+	disabled_sa &= max_sa_mask;
+
+	return disabled_sa;
+}
+
+static void gfx_v10_3_program_pbb_mode(struct amdgpu_device *adev)
+{
+	uint32_t max_sa_per_se, max_sa_per_se_mask, max_shader_engines;
+	uint32_t disabled_sa_mask, se_index, disabled_sa_per_se;
+
+	disabled_sa_mask = gfx_v10_3_get_disabled_sa(adev);
+
+	max_sa_per_se = adev->gfx.config.max_sh_per_se;
+	max_sa_per_se_mask = (1 << max_sa_per_se) - 1;
+	max_shader_engines = adev->gfx.config.max_shader_engines;
+
+	for (se_index = 0; max_shader_engines > se_index; se_index++) {
+		disabled_sa_per_se = disabled_sa_mask >> (se_index * max_sa_per_se);
+		disabled_sa_per_se &= max_sa_per_se_mask;
+		if (disabled_sa_per_se == max_sa_per_se_mask) {
+			WREG32_FIELD15(GC, 0, PA_SC_ENHANCE_3, FORCE_PBB_WORKLOAD_MODE_TO_ZERO, 1);
+			break;
+		}
+	}
+}
+
 const struct amdgpu_ip_block_version gfx_v10_0_ip_block =
 {
 	.type = AMD_IP_BLOCK_TYPE_GFX,
diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v1_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v1_0.c
index bc300283b6ab..c600b61b5f45 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v1_0.c
@@ -33,6 +33,7 @@
 
 static void jpeg_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
 static void jpeg_v1_0_set_irq_funcs(struct amdgpu_device *adev);
+static void jpeg_v1_0_ring_begin_use(struct amdgpu_ring *ring);
 
 static void jpeg_v1_0_decode_ring_patch_wreg(struct amdgpu_ring *ring, uint32_t *ptr, uint32_t reg_offset, uint32_t val)
 {
@@ -564,8 +565,8 @@ static const struct amdgpu_ring_funcs jpeg_v1_0_decode_ring_vm_funcs = {
 	.insert_start = jpeg_v1_0_decode_ring_insert_start,
 	.insert_end = jpeg_v1_0_decode_ring_insert_end,
 	.pad_ib = amdgpu_ring_generic_pad_ib,
-	.begin_use = vcn_v1_0_ring_begin_use,
-	.end_use = amdgpu_vcn_ring_end_use,
+	.begin_use = jpeg_v1_0_ring_begin_use,
+	.end_use = vcn_v1_0_ring_end_use,
 	.emit_wreg = jpeg_v1_0_decode_ring_emit_wreg,
 	.emit_reg_wait = jpeg_v1_0_decode_ring_emit_reg_wait,
 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
@@ -586,3 +587,22 @@ static void jpeg_v1_0_set_irq_funcs(struct amdgpu_device *adev)
 {
 	adev->jpeg.inst->irq.funcs = &jpeg_v1_0_irq_funcs;
 }
+
+static void jpeg_v1_0_ring_begin_use(struct amdgpu_ring *ring)
+{
+	struct	amdgpu_device *adev = ring->adev;
+	bool	set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
+	int		cnt = 0;
+
+	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
+
+	if (amdgpu_fence_wait_empty(&adev->vcn.inst->ring_dec))
+		DRM_ERROR("JPEG dec: vcn dec ring may not be empty\n");
+
+	for (cnt = 0; cnt < adev->vcn.num_enc_rings; cnt++) {
+		if (amdgpu_fence_wait_empty(&adev->vcn.inst->ring_enc[cnt]))
+			DRM_ERROR("JPEG dec: vcn enc ring[%d] may not be empty\n", cnt);
+	}
+
+	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 927c330fad21..ec4ce8746d5e 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -54,6 +54,7 @@ static int vcn_v1_0_pause_dpg_mode(struct amdgpu_device *adev,
 				int inst_idx, struct dpg_pause_state *new_state);
 
 static void vcn_v1_0_idle_work_handler(struct work_struct *work);
+static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring);
 
 /**
  * vcn_v1_0_early_init - set function pointers
@@ -1804,11 +1805,24 @@ static void vcn_v1_0_idle_work_handler(struct work_struct *work)
 	}
 }
 
-void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
+static void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
 {
-	struct amdgpu_device *adev = ring->adev;
+	struct	amdgpu_device *adev = ring->adev;
 	bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
 
+	mutex_lock(&adev->vcn.vcn1_jpeg1_workaround);
+
+	if (amdgpu_fence_wait_empty(&ring->adev->jpeg.inst->ring_dec))
+		DRM_ERROR("VCN dec: jpeg dec ring may not be empty\n");
+
+	vcn_v1_0_set_pg_for_begin_use(ring, set_clocks);
+
+}
+
+void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks)
+{
+	struct amdgpu_device *adev = ring->adev;
+
 	if (set_clocks) {
 		amdgpu_gfx_off_ctrl(adev, false);
 		if (adev->pm.dpm_enabled)
@@ -1844,6 +1858,12 @@ void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring)
 	}
 }
 
+void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring)
+{
+	schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+	mutex_unlock(&ring->adev->vcn.vcn1_jpeg1_workaround);
+}
+
 static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
 	.name = "vcn_v1_0",
 	.early_init = vcn_v1_0_early_init,
@@ -1891,7 +1911,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_dec_ring_vm_funcs = {
 	.insert_end = vcn_v1_0_dec_ring_insert_end,
 	.pad_ib = amdgpu_ring_generic_pad_ib,
 	.begin_use = vcn_v1_0_ring_begin_use,
-	.end_use = amdgpu_vcn_ring_end_use,
+	.end_use = vcn_v1_0_ring_end_use,
 	.emit_wreg = vcn_v1_0_dec_ring_emit_wreg,
 	.emit_reg_wait = vcn_v1_0_dec_ring_emit_reg_wait,
 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
@@ -1923,7 +1943,7 @@ static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
 	.insert_end = vcn_v1_0_enc_ring_insert_end,
 	.pad_ib = amdgpu_ring_generic_pad_ib,
 	.begin_use = vcn_v1_0_ring_begin_use,
-	.end_use = amdgpu_vcn_ring_end_use,
+	.end_use = vcn_v1_0_ring_end_use,
 	.emit_wreg = vcn_v1_0_enc_ring_emit_wreg,
 	.emit_reg_wait = vcn_v1_0_enc_ring_emit_reg_wait,
 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.h b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.h
index f67d7391fc21..1f1cc7f0ece7 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.h
@@ -24,7 +24,8 @@
 #ifndef __VCN_V1_0_H__
 #define __VCN_V1_0_H__
 
-void vcn_v1_0_ring_begin_use(struct amdgpu_ring *ring);
+void vcn_v1_0_ring_end_use(struct amdgpu_ring *ring);
+void vcn_v1_0_set_pg_for_begin_use(struct amdgpu_ring *ring, bool set_clocks);
 
 extern const struct amdgpu_ip_block_version vcn_v1_0_ip_block;
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
index 72e4d61ac752..ad0593342333 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
@@ -58,8 +58,9 @@ static int update_qpd_v10(struct device_queue_manager *dqm,
 	/* check if sh_mem_config register already configured */
 	if (qpd->sh_mem_config == 0) {
 		qpd->sh_mem_config =
-				SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
-					SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
+			(SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+				SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT) |
+			(3 << SH_MEM_CONFIG__INITIAL_INST_PREFETCH__SHIFT);
 #if 0
 		/* TODO:
 		 *    This shouldn't be an issue with Navi10.  Verify.
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 5474f7e4c75b..6beccd5a0941 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4882,6 +4882,13 @@ static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
 	struct amdgpu_device *adev = connector->dev->dev_private;
 	struct amdgpu_display_manager *dm = &adev->dm;
 
+	/*
+	 * Call only if mst_mgr was iniitalized before since it's not done
+	 * for all connector types.
+	 */
+	if (aconnector->mst_mgr.dev)
+		drm_dp_mst_topology_mgr_destroy(&aconnector->mst_mgr);
+
 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
 	defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
 
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
index d031bd3d3072..807dca8f7d7a 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce112/dce112_clk_mgr.c
@@ -79,8 +79,7 @@ int dce112_set_clock(struct clk_mgr *clk_mgr_base, int requested_clk_khz)
 	memset(&dce_clk_params, 0, sizeof(dce_clk_params));
 
 	/* Make sure requested clock isn't lower than minimum threshold*/
-	if (requested_clk_khz > 0)
-		requested_clk_khz = max(requested_clk_khz,
+	requested_clk_khz = max(requested_clk_khz,
 				clk_mgr_dce->base.dentist_vco_freq_khz / 62);
 
 	dce_clk_params.target_clock_frequency = requested_clk_khz;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index 21a3073c8929..2f8fee05547a 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -761,6 +761,7 @@ void rn_clk_mgr_construct(
 {
 	struct dc_debug_options *debug = &ctx->dc->debug;
 	struct dpm_clocks clock_table = { 0 };
+	enum pp_smu_status status = 0;
 
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->base.funcs = &dcn21_funcs;
@@ -817,8 +818,10 @@ void rn_clk_mgr_construct(
 	clk_mgr->base.bw_params = &rn_bw_params;
 
 	if (pp_smu && pp_smu->rn_funcs.get_dpm_clock_table) {
-		pp_smu->rn_funcs.get_dpm_clock_table(&pp_smu->rn_funcs.pp_smu, &clock_table);
-		if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
+		status = pp_smu->rn_funcs.get_dpm_clock_table(&pp_smu->rn_funcs.pp_smu, &clock_table);
+
+		if (status == PP_SMU_RESULT_OK &&
+		    ctx->dc_bios && ctx->dc_bios->integrated_info) {
 			rn_clk_mgr_helper_populate_bw_params (clk_mgr->base.bw_params, &clock_table, ctx->dc_bios->integrated_info);
 		}
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 437d1a7a16fe..b0f8bfd48d10 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -2441,7 +2441,7 @@ enum dc_status dc_link_validate_mode_timing(
 	/* A hack to avoid failing any modes for EDID override feature on
 	 * topology change such as lower quality cable for DP or different dongle
 	 */
-	if (link->remote_sinks[0])
+	if (link->remote_sinks[0] && link->remote_sinks[0]->sink_signal == SIGNAL_TYPE_VIRTUAL)
 		return DC_OK;
 
 	/* Passive Dongle */
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.h b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.h
index 99c68ca9c7e0..967d04d75b98 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.h
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.h
@@ -54,7 +54,7 @@
 	SR(BL_PWM_CNTL2), \
 	SR(BL_PWM_PERIOD_CNTL), \
 	SR(BL_PWM_GRP1_REG_LOCK), \
-	SR(BIOS_SCRATCH_2)
+	NBIO_SR(BIOS_SCRATCH_2)
 
 #define DCE_PANEL_CNTL_SF(reg_name, field_name, post_fix)\
 	.field_name = reg_name ## __ ## field_name ## post_fix
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c
index 842abb4c475b..62651d0041fd 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c
@@ -896,10 +896,10 @@ void enc1_stream_encoder_dp_blank(
 	 */
 	REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_DIS_DEFER, 2);
 	/* Larger delay to wait until VBLANK - use max retry of
-	 * 10us*5000=50ms. This covers 41.7ms of minimum 24 Hz mode +
+	 * 10us*10200=102ms. This covers 100.0ms of minimum 10 Hz mode +
 	 * a little more because we may not trust delay accuracy.
 	 */
-	max_retries = DP_BLANK_MAX_RETRY * 250;
+	max_retries = DP_BLANK_MAX_RETRY * 501;
 
 	/* disable DP stream */
 	REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, 0);
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c b/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c
index f67c18375bfd..dac427b68fd7 100644
--- a/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c
+++ b/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c
@@ -63,13 +63,13 @@ enum gpio_result dal_gpio_open_ex(
 	enum gpio_mode mode)
 {
 	if (gpio->pin) {
-		ASSERT_CRITICAL(false);
+		BREAK_TO_DEBUGGER();
 		return GPIO_RESULT_ALREADY_OPENED;
 	}
 
 	// No action if allocation failed during gpio construct
 	if (!gpio->hw_container.ddc) {
-		ASSERT_CRITICAL(false);
+		BREAK_TO_DEBUGGER();
 		return GPIO_RESULT_NON_SPECIFIC_ERROR;
 	}
 	gpio->mode = mode;
diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
index c3bbfe397e8d..aee98b1d7ebf 100644
--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
@@ -90,7 +90,7 @@
  * general debug capabilities
  *
  */
-#if defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB)
+#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
 #define ASSERT_CRITICAL(expr) do {	\
 	if (WARN_ON(!(expr))) { \
 		kgdb_breakpoint(); \
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 4a3b64aa21ce..fc63d9e32e1f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -2873,7 +2873,7 @@ static int smu7_vblank_too_short(struct pp_hwmgr *hwmgr,
 		if (hwmgr->is_kicker)
 			switch_limit_us = data->is_memory_gddr5 ? 450 : 150;
 		else
-			switch_limit_us = data->is_memory_gddr5 ? 190 : 150;
+			switch_limit_us = data->is_memory_gddr5 ? 200 : 150;
 		break;
 	case CHIP_VEGAM:
 		switch_limit_us = 30;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_types.h b/drivers/gpu/drm/amd/powerplay/inc/smu_types.h
index 7b585e205a5a..3b868f2adc12 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_types.h
@@ -217,6 +217,7 @@ enum smu_clk_type {
        __SMU_DUMMY_MAP(DPM_MP0CLK),                    	\
        __SMU_DUMMY_MAP(DPM_LINK),                      	\
        __SMU_DUMMY_MAP(DPM_DCEFCLK),                   	\
+       __SMU_DUMMY_MAP(DPM_XGMI),			\
        __SMU_DUMMY_MAP(DS_GFXCLK),                     	\
        __SMU_DUMMY_MAP(DS_SOCCLK),                     	\
        __SMU_DUMMY_MAP(DS_LCLK),                       	\
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index b1547a83e721..e0992cd7914e 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -2463,37 +2463,11 @@ static const struct i2c_algorithm navi10_i2c_algo = {
 	.functionality = navi10_i2c_func,
 };
 
-static int navi10_i2c_control_init(struct smu_context *smu, struct i2c_adapter *control)
-{
-	struct amdgpu_device *adev = to_amdgpu_device(control);
-	int res;
-
-	control->owner = THIS_MODULE;
-	control->class = I2C_CLASS_SPD;
-	control->dev.parent = &adev->pdev->dev;
-	control->algo = &navi10_i2c_algo;
-	snprintf(control->name, sizeof(control->name), "AMDGPU SMU");
-
-	res = i2c_add_adapter(control);
-	if (res)
-		DRM_ERROR("Failed to register hw i2c, err: %d\n", res);
-
-	return res;
-}
-
-static void navi10_i2c_control_fini(struct smu_context *smu, struct i2c_adapter *control)
-{
-	i2c_del_adapter(control);
-}
-
-
 static const struct pptable_funcs navi10_ppt_funcs = {
 	.get_allowed_feature_mask = navi10_get_allowed_feature_mask,
 	.set_default_dpm_table = navi10_set_default_dpm_table,
 	.dpm_set_vcn_enable = navi10_dpm_set_vcn_enable,
 	.dpm_set_jpeg_enable = navi10_dpm_set_jpeg_enable,
-	.i2c_init = navi10_i2c_control_init,
-	.i2c_fini = navi10_i2c_control_fini,
 	.print_clk_levels = navi10_print_clk_levels,
 	.force_clk_levels = navi10_force_clk_levels,
 	.populate_umd_state_clk = navi10_populate_umd_state_clk,
diff --git a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
index ace682fde22f..8f41496630a5 100644
--- a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
@@ -150,14 +150,17 @@ static struct cmn2asic_mapping sienna_cichlid_feature_mask_map[SMU_FEATURE_COUNT
 	FEA_MAP(DPM_GFXCLK),
 	FEA_MAP(DPM_GFX_GPO),
 	FEA_MAP(DPM_UCLK),
+	FEA_MAP(DPM_FCLK),
 	FEA_MAP(DPM_SOCCLK),
 	FEA_MAP(DPM_MP0CLK),
 	FEA_MAP(DPM_LINK),
 	FEA_MAP(DPM_DCEFCLK),
+	FEA_MAP(DPM_XGMI),
 	FEA_MAP(MEM_VDDCI_SCALING),
 	FEA_MAP(MEM_MVDD_SCALING),
 	FEA_MAP(DS_GFXCLK),
 	FEA_MAP(DS_SOCCLK),
+	FEA_MAP(DS_FCLK),
 	FEA_MAP(DS_LCLK),
 	FEA_MAP(DS_DCEFCLK),
 	FEA_MAP(DS_UCLK),
@@ -447,6 +450,9 @@ static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
 	case METRICS_CURR_DCEFCLK:
 		*value = metrics->CurrClock[PPCLK_DCEFCLK];
 		break;
+	case METRICS_CURR_FCLK:
+		*value = metrics->CurrClock[PPCLK_FCLK];
+		break;
 	case METRICS_AVERAGE_GFXCLK:
 		if (metrics->AverageGfxActivity <= SMU_11_0_7_GFX_BUSY_THRESHOLD)
 			*value = metrics->AverageGfxclkFrequencyPostDs;
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 0b58f7aee6b0..9d04f2b5225c 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -43,9 +43,33 @@ int ast_modeset = -1;
 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 module_param_named(modeset, ast_modeset, int, 0400);
 
-#define PCI_VENDOR_ASPEED 0x1a03
+/*
+ * DRM driver
+ */
+
+DEFINE_DRM_GEM_FOPS(ast_fops);
+
+static struct drm_driver ast_driver = {
+	.driver_features = DRIVER_ATOMIC |
+			   DRIVER_GEM |
+			   DRIVER_MODESET,
+
+	.fops = &ast_fops,
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = DRIVER_DATE,
+	.major = DRIVER_MAJOR,
+	.minor = DRIVER_MINOR,
+	.patchlevel = DRIVER_PATCHLEVEL,
 
-static struct drm_driver driver;
+	DRM_GEM_VRAM_DRIVER
+};
+
+/*
+ * PCI driver
+ */
+
+#define PCI_VENDOR_ASPEED 0x1a03
 
 #define AST_VGA_DEVICE(id, info) {		\
 	.class = PCI_BASE_CLASS_DISPLAY << 16,	\
@@ -56,13 +80,13 @@ static struct drm_driver driver;
 	.subdevice = PCI_ANY_ID,		\
 	.driver_data = (unsigned long) info }
 
-static const struct pci_device_id pciidlist[] = {
+static const struct pci_device_id ast_pciidlist[] = {
 	AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
 	AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
 	{0, 0, 0},
 };
 
-MODULE_DEVICE_TABLE(pci, pciidlist);
+MODULE_DEVICE_TABLE(pci, ast_pciidlist);
 
 static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
 {
@@ -94,7 +118,7 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		return ret;
 
-	dev = drm_dev_alloc(&driver, &pdev->dev);
+	dev = drm_dev_alloc(&ast_driver, &pdev->dev);
 	if (IS_ERR(dev))
 		return  PTR_ERR(dev);
 
@@ -118,11 +142,9 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 err_drm_dev_put:
 	drm_dev_put(dev);
 	return ret;
-
 }
 
-static void
-ast_pci_remove(struct pci_dev *pdev)
+static void ast_pci_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
@@ -217,30 +239,12 @@ static const struct dev_pm_ops ast_pm_ops = {
 
 static struct pci_driver ast_pci_driver = {
 	.name = DRIVER_NAME,
-	.id_table = pciidlist,
+	.id_table = ast_pciidlist,
 	.probe = ast_pci_probe,
 	.remove = ast_pci_remove,
 	.driver.pm = &ast_pm_ops,
 };
 
-DEFINE_DRM_GEM_FOPS(ast_fops);
-
-static struct drm_driver driver = {
-	.driver_features = DRIVER_ATOMIC |
-			   DRIVER_GEM |
-			   DRIVER_MODESET,
-
-	.fops = &ast_fops,
-	.name = DRIVER_NAME,
-	.desc = DRIVER_DESC,
-	.date = DRIVER_DATE,
-	.major = DRIVER_MAJOR,
-	.minor = DRIVER_MINOR,
-	.patchlevel = DRIVER_PATCHLEVEL,
-
-	DRM_GEM_VRAM_DRIVER
-};
-
 static int __init ast_init(void)
 {
 	if (vgacon_text_force() && ast_modeset == -1)
@@ -261,4 +265,3 @@ module_exit(ast_exit);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
-
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 6200f12a37e6..ab8174831cf4 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -302,8 +302,12 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
 				       const struct i2c_device_id *id)
 {
 	struct device *dev = &stdp4028_i2c->dev;
+	int ret;
+
+	ret = ge_b850v3_lvds_init(dev);
 
-	ge_b850v3_lvds_init(dev);
+	if (ret)
+		return ret;
 
 	ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
 	i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
@@ -361,8 +365,12 @@ static int stdp2690_ge_b850v3_fw_probe(struct i2c_client *stdp2690_i2c,
 				       const struct i2c_device_id *id)
 {
 	struct device *dev = &stdp2690_i2c->dev;
+	int ret;
+
+	ret = ge_b850v3_lvds_init(dev);
 
-	ge_b850v3_lvds_init(dev);
+	if (ret)
+		return ret;
 
 	ge_b850v3_lvds_ptr->stdp2690_i2c = stdp2690_i2c;
 	i2c_set_clientdata(stdp2690_i2c, ge_b850v3_lvds_ptr);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index d580b2aa4ce9..979acaa90d00 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -365,7 +365,6 @@ static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,
 	if (lpm)
 		val |= CMD_MODE_ALL_LP;
 
-	dsi_write(dsi, DSI_LPCLK_CTRL, lpm ? 0 : PHY_TXREQUESTCLKHS);
 	dsi_write(dsi, DSI_CMD_MODE_CFG, val);
 }
 
@@ -541,16 +540,22 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
 static void dw_mipi_dsi_set_mode(struct dw_mipi_dsi *dsi,
 				 unsigned long mode_flags)
 {
+	u32 val;
+
 	dsi_write(dsi, DSI_PWR_UP, RESET);
 
 	if (mode_flags & MIPI_DSI_MODE_VIDEO) {
 		dsi_write(dsi, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
 		dw_mipi_dsi_video_mode_config(dsi);
-		dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
 	} else {
 		dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
 	}
 
+	val = PHY_TXREQUESTCLKHS;
+	if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+		val |= AUTO_CLKLANE_CTRL;
+	dsi_write(dsi, DSI_LPCLK_CTRL, val);
+
 	dsi_write(dsi, DSI_PWR_UP, POWERUP);
 }
 
diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index c6994fe673f3..a58cbde59c34 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -187,6 +187,7 @@ drm_bridge_connector_detect(struct drm_connector *connector, bool force)
 		case DRM_MODE_CONNECTOR_DPI:
 		case DRM_MODE_CONNECTOR_LVDS:
 		case DRM_MODE_CONNECTOR_DSI:
+		case DRM_MODE_CONNECTOR_eDP:
 			status = connector_status_connected;
 			break;
 		default:
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 19d73868490e..69c2c079d803 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1085,6 +1085,8 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
 	 */
 	drm_gem_object_get(obj);
 
+	vma->vm_private_data = obj;
+
 	if (obj->funcs && obj->funcs->mmap) {
 		ret = obj->funcs->mmap(obj, vma);
 		if (ret) {
@@ -1107,8 +1109,6 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
 		vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
 	}
 
-	vma->vm_private_data = obj;
-
 	return 0;
 }
 EXPORT_SYMBOL(drm_gem_mmap_obj);
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 4b7cfbac4daa..22a5d58a7eaa 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -594,8 +594,13 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
 	/* Remove the fake offset */
 	vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node);
 
-	if (obj->import_attach)
+	if (obj->import_attach) {
+		/* Drop the reference drm_gem_mmap_obj() acquired.*/
+		drm_gem_object_put(obj);
+		vma->vm_private_data = NULL;
+
 		return dma_buf_mmap(obj->dma_buf, vma, 0);
+	}
 
 	shmem = to_drm_gem_shmem_obj(obj);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 03be31427181..967a5cdc120e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -395,8 +395,8 @@ static void g2d_userptr_put_dma_addr(struct g2d_data *g2d,
 		return;
 
 out:
-	dma_unmap_sg(to_dma_dev(g2d->drm_dev), g2d_userptr->sgt->sgl,
-			g2d_userptr->sgt->nents, DMA_BIDIRECTIONAL);
+	dma_unmap_sgtable(to_dma_dev(g2d->drm_dev), g2d_userptr->sgt,
+			  DMA_BIDIRECTIONAL, 0);
 
 	pages = frame_vector_pages(g2d_userptr->vec);
 	if (!IS_ERR(pages)) {
@@ -511,10 +511,10 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d,
 
 	g2d_userptr->sgt = sgt;
 
-	if (!dma_map_sg(to_dma_dev(g2d->drm_dev), sgt->sgl, sgt->nents,
-				DMA_BIDIRECTIONAL)) {
+	ret = dma_map_sgtable(to_dma_dev(g2d->drm_dev), sgt,
+			      DMA_BIDIRECTIONAL, 0);
+	if (ret) {
 		DRM_DEV_ERROR(g2d->dev, "failed to map sgt with dma region.\n");
-		ret = -ENOMEM;
 		goto err_sg_free_table;
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e4f7f6518945..37e6f2abab00 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -33,6 +33,8 @@
 #include <uapi/drm/i915_drm.h>
 #include <uapi/drm/drm_fourcc.h>
 
+#include <asm/hypervisor.h>
+
 #include <linux/io-mapping.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
@@ -1716,7 +1718,9 @@ static inline bool intel_vtd_active(void)
 	if (intel_iommu_gfx_mapped)
 		return true;
 #endif
-	return false;
+
+	/* Running as a guest, we assume the host is enforcing VT'd */
+	return !hypervisor_is_type(X86_HYPER_NATIVE);
 }
 
 static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index 155f2b4b4030..11223fe348df 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -69,8 +69,7 @@ int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm)
 		return ret;
 
 	if (bo->base.sgt) {
-		dma_unmap_sg(dev, bo->base.sgt->sgl,
-			     bo->base.sgt->nents, DMA_BIDIRECTIONAL);
+		dma_unmap_sgtable(dev, bo->base.sgt, DMA_BIDIRECTIONAL, 0);
 		sg_free_table(bo->base.sgt);
 	} else {
 		bo->base.sgt = kmalloc(sizeof(*bo->base.sgt), GFP_KERNEL);
@@ -80,7 +79,13 @@ int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm)
 		}
 	}
 
-	dma_map_sg(dev, sgt.sgl, sgt.nents, DMA_BIDIRECTIONAL);
+	ret = dma_map_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
+	if (ret) {
+		sg_free_table(&sgt);
+		kfree(bo->base.sgt);
+		bo->base.sgt = NULL;
+		return ret;
+	}
 
 	*bo->base.sgt = sgt;
 
diff --git a/drivers/gpu/drm/lima/lima_vm.c b/drivers/gpu/drm/lima/lima_vm.c
index 5b92fb82674a..2b2739adc7f5 100644
--- a/drivers/gpu/drm/lima/lima_vm.c
+++ b/drivers/gpu/drm/lima/lima_vm.c
@@ -124,7 +124,7 @@ int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create)
 	if (err)
 		goto err_out1;
 
-	for_each_sg_dma_page(bo->base.sgt->sgl, &sg_iter, bo->base.sgt->nents, 0) {
+	for_each_sgtable_dma_page(bo->base.sgt, &sg_iter, 0) {
 		err = lima_vm_map_page(vm, sg_page_iter_dma_address(&sg_iter),
 				       bo_va->node.start + offset);
 		if (err)
@@ -298,8 +298,7 @@ int lima_vm_map_bo(struct lima_vm *vm, struct lima_bo *bo, int pageoff)
 	mutex_lock(&vm->lock);
 
 	base = bo_va->node.start + (pageoff << PAGE_SHIFT);
-	for_each_sg_dma_page(bo->base.sgt->sgl, &sg_iter,
-			     bo->base.sgt->nents, pageoff) {
+	for_each_sgtable_dma_page(bo->base.sgt, &sg_iter, pageoff) {
 		err = lima_vm_map_page(vm, sg_page_iter_dma_address(&sg_iter),
 				       base + offset);
 		if (err)
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 33355dd302f1..1a6cea0e0bd7 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -41,8 +41,8 @@ static void panfrost_gem_free_object(struct drm_gem_object *obj)
 
 		for (i = 0; i < n_sgt; i++) {
 			if (bo->sgts[i].sgl) {
-				dma_unmap_sg(pfdev->dev, bo->sgts[i].sgl,
-					     bo->sgts[i].nents, DMA_BIDIRECTIONAL);
+				dma_unmap_sgtable(pfdev->dev, &bo->sgts[i],
+						  DMA_BIDIRECTIONAL, 0);
 				sg_free_table(&bo->sgts[i]);
 			}
 		}
diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c
index e8f7b11352d2..776448c527ea 100644
--- a/drivers/gpu/drm/panfrost/panfrost_mmu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c
@@ -253,7 +253,7 @@ static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu,
 	struct io_pgtable_ops *ops = mmu->pgtbl_ops;
 	u64 start_iova = iova;
 
-	for_each_sg(sgt->sgl, sgl, sgt->nents, count) {
+	for_each_sgtable_dma_sg(sgt, sgl, count) {
 		unsigned long paddr = sg_dma_address(sgl);
 		size_t len = sg_dma_len(sgl);
 
@@ -517,10 +517,9 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as,
 	if (ret)
 		goto err_pages;
 
-	if (!dma_map_sg(pfdev->dev, sgt->sgl, sgt->nents, DMA_BIDIRECTIONAL)) {
-		ret = -EINVAL;
+	ret = dma_map_sgtable(pfdev->dev, sgt, DMA_BIDIRECTIONAL, 0);
+	if (ret)
 		goto err_map;
-	}
 
 	mmu_map_sg(pfdev, bomapping->mmu, addr,
 		   IOMMU_WRITE | IOMMU_READ | IOMMU_NOEXEC, sgt);
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 96f763d888af..9a0d77a68018 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -625,7 +625,7 @@ drm_sched_select_entity(struct drm_gpu_scheduler *sched)
 		return NULL;
 
 	/* Kernel run queue has higher priority than normal run queue*/
-	for (i = DRM_SCHED_PRIORITY_MAX - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
+	for (i = DRM_SCHED_PRIORITY_COUNT - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
 		entity = drm_sched_rq_select_entity(&sched->sched_rq[i]);
 		if (entity)
 			break;
@@ -852,7 +852,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
 	sched->name = name;
 	sched->timeout = timeout;
 	sched->hang_limit = hang_limit;
-	for (i = DRM_SCHED_PRIORITY_MIN; i < DRM_SCHED_PRIORITY_MAX; i++)
+	for (i = DRM_SCHED_PRIORITY_MIN; i < DRM_SCHED_PRIORITY_COUNT; i++)
 		drm_sched_rq_init(sched, &sched->sched_rq[i]);
 
 	init_waitqueue_head(&sched->wake_up_worker);
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index cc6a4e7551e3..760a8c102af3 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -694,7 +694,7 @@ bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
 	/* Don't evict this BO if it's outside of the
 	 * requested placement range
 	 */
-	if (place->fpfn >= (bo->mem.start + bo->mem.size) ||
+	if (place->fpfn >= (bo->mem.start + bo->mem.num_pages) ||
 	    (place->lpfn && place->lpfn <= bo->mem.start))
 		return false;
 
diff --git a/drivers/gpu/drm/vkms/vkms_crtc.c b/drivers/gpu/drm/vkms/vkms_crtc.c
index ac85e17428f8..09c012d54d58 100644
--- a/drivers/gpu/drm/vkms/vkms_crtc.c
+++ b/drivers/gpu/drm/vkms/vkms_crtc.c
@@ -86,6 +86,11 @@ static bool vkms_get_vblank_timestamp(struct drm_crtc *crtc,
 	struct vkms_output *output = &vkmsdev->output;
 	struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
 
+	if (!READ_ONCE(vblank->enabled)) {
+		*vblank_time = ktime_get();
+		return true;
+	}
+
 	*vblank_time = READ_ONCE(output->vblank_hrtimer.node.expires);
 
 	if (WARN_ON(*vblank_time == vblank->time))
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 83dfec327c42..1bd0eb71559c 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2773,7 +2773,9 @@ static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *repo
 	if (report->type != HID_INPUT_REPORT)
 		return -1;
 
-	if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
+	if (WACOM_PAD_FIELD(field))
+		return 0;
+	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
 		wacom_wac_pen_report(hdev, report);
 	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
 		wacom_wac_finger_report(hdev, report);
diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c
index de04dff28945..34f42589d90d 100644
--- a/drivers/hwmon/pmbus/max34440.c
+++ b/drivers/hwmon/pmbus/max34440.c
@@ -31,6 +31,13 @@ enum chips { max34440, max34441, max34446, max34451, max34460, max34461 };
 #define MAX34440_STATUS_OT_FAULT	BIT(5)
 #define MAX34440_STATUS_OT_WARN		BIT(6)
 
+/*
+ * The whole max344* family have IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT
+ * swapped from the standard pmbus spec addresses.
+ */
+#define MAX34440_IOUT_OC_WARN_LIMIT	0x46
+#define MAX34440_IOUT_OC_FAULT_LIMIT	0x4A
+
 #define MAX34451_MFR_CHANNEL_CONFIG	0xe4
 #define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK	0x3f
 
@@ -49,6 +56,14 @@ static int max34440_read_word_data(struct i2c_client *client, int page,
 	const struct max34440_data *data = to_max34440_data(info);
 
 	switch (reg) {
+	case PMBUS_IOUT_OC_FAULT_LIMIT:
+		ret = pmbus_read_word_data(client, page, phase,
+					   MAX34440_IOUT_OC_FAULT_LIMIT);
+		break;
+	case PMBUS_IOUT_OC_WARN_LIMIT:
+		ret = pmbus_read_word_data(client, page, phase,
+					   MAX34440_IOUT_OC_WARN_LIMIT);
+		break;
 	case PMBUS_VIRT_READ_VOUT_MIN:
 		ret = pmbus_read_word_data(client, page, phase,
 					   MAX34440_MFR_VOUT_MIN);
@@ -115,6 +130,14 @@ static int max34440_write_word_data(struct i2c_client *client, int page,
 	int ret;
 
 	switch (reg) {
+	case PMBUS_IOUT_OC_FAULT_LIMIT:
+		ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_FAULT_LIMIT,
+					    word);
+		break;
+	case PMBUS_IOUT_OC_WARN_LIMIT:
+		ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_WARN_LIMIT,
+					    word);
+		break;
 	case PMBUS_VIRT_RESET_POUT_HISTORY:
 		ret = pmbus_write_word_data(client, page,
 					    MAX34446_MFR_POUT_PEAK, 0);
diff --git a/drivers/hwtracing/coresight/coresight-cti-sysfs.c b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
index 392757f3a019..7ff7e7780bbf 100644
--- a/drivers/hwtracing/coresight/coresight-cti-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
@@ -1065,6 +1065,13 @@ static int cti_create_con_sysfs_attr(struct device *dev,
 	}
 	eattr->var = con;
 	con->con_attrs[attr_idx] = &eattr->attr.attr;
+	/*
+	 * Initialize the dynamically allocated attribute
+	 * to avoid LOCKDEP splat. See include/linux/sysfs.h
+	 * for more details.
+	 */
+	sysfs_attr_init(con->con_attrs[attr_idx]);
+
 	return 0;
 }
 
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index f2dc625ea585..5fe773c4d6cc 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -148,7 +148,8 @@ static inline void coresight_write_reg_pair(void __iomem *addr, u64 val,
 void coresight_disable_path(struct list_head *path);
 int coresight_enable_path(struct list_head *path, u32 mode, void *sink_data);
 struct coresight_device *coresight_get_sink(struct list_head *path);
-struct coresight_device *coresight_get_enabled_sink(bool reset);
+struct coresight_device *
+coresight_get_enabled_sink(struct coresight_device *source);
 struct coresight_device *coresight_get_sink_by_id(u32 id);
 struct coresight_device *
 coresight_find_default_sink(struct coresight_device *csdev);
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index cdcb1917216f..fd4621666944 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -540,50 +540,46 @@ struct coresight_device *coresight_get_sink(struct list_head *path)
 	return csdev;
 }
 
-static int coresight_enabled_sink(struct device *dev, const void *data)
+static struct coresight_device *
+coresight_find_enabled_sink(struct coresight_device *csdev)
 {
-	const bool *reset = data;
-	struct coresight_device *csdev = to_coresight_device(dev);
+	int i;
+	struct coresight_device *sink;
 
 	if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
 	     csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) &&
-	     csdev->activated) {
-		/*
-		 * Now that we have a handle on the sink for this session,
-		 * disable the sysFS "enable_sink" flag so that possible
-		 * concurrent perf session that wish to use another sink don't
-		 * trip on it.  Doing so has no ramification for the current
-		 * session.
-		 */
-		if (*reset)
-			csdev->activated = false;
+	     csdev->activated)
+		return csdev;
 
-		return 1;
+	/*
+	 * Recursively explore each port found on this element.
+	 */
+	for (i = 0; i < csdev->pdata->nr_outport; i++) {
+		struct coresight_device *child_dev;
+
+		child_dev = csdev->pdata->conns[i].child_dev;
+		if (child_dev)
+			sink = coresight_find_enabled_sink(child_dev);
+		if (sink)
+			return sink;
 	}
 
-	return 0;
+	return NULL;
 }
 
 /**
- * coresight_get_enabled_sink - returns the first enabled sink found on the bus
- * @deactivate:	Whether the 'enable_sink' flag should be reset
- *
- * When operated from perf the deactivate parameter should be set to 'true'.
- * That way the "enabled_sink" flag of the sink that was selected can be reset,
- * allowing for other concurrent perf sessions to choose a different sink.
+ * coresight_get_enabled_sink - returns the first enabled sink using
+ * connection based search starting from the source reference
  *
- * When operated from sysFS users have full control and as such the deactivate
- * parameter should be set to 'false', hence mandating users to explicitly
- * clear the flag.
+ * @source: Coresight source device reference
  */
-struct coresight_device *coresight_get_enabled_sink(bool deactivate)
+struct coresight_device *
+coresight_get_enabled_sink(struct coresight_device *source)
 {
-	struct device *dev = NULL;
-
-	dev = bus_find_device(&coresight_bustype, NULL, &deactivate,
-			      coresight_enabled_sink);
+	if (!source)
+		return NULL;
 
-	return dev ? to_coresight_device(dev) : NULL;
+	return coresight_find_enabled_sink(source);
 }
 
 static int coresight_sink_by_id(struct device *dev, const void *data)
@@ -988,11 +984,7 @@ int coresight_enable(struct coresight_device *csdev)
 		goto out;
 	}
 
-	/*
-	 * Search for a valid sink for this session but don't reset the
-	 * "enable_sink" flag in sysFS.  Users get to do that explicitly.
-	 */
-	sink = coresight_get_enabled_sink(false);
+	sink = coresight_get_enabled_sink(csdev);
 	if (!sink) {
 		ret = -EINVAL;
 		goto out;
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 0ab5381aa012..7e7257c6f83f 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1171,14 +1171,6 @@ static int i2c_imx_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	/* Request IRQ */
-	ret = devm_request_irq(&pdev->dev, irq, i2c_imx_isr, IRQF_SHARED,
-				pdev->name, i2c_imx);
-	if (ret) {
-		dev_err(&pdev->dev, "can't claim irq %d\n", irq);
-		goto clk_disable;
-	}
-
 	/* Init queue */
 	init_waitqueue_head(&i2c_imx->queue);
 
@@ -1197,6 +1189,14 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto rpm_disable;
 
+	/* Request IRQ */
+	ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
+				   pdev->name, i2c_imx);
+	if (ret) {
+		dev_err(&pdev->dev, "can't claim irq %d\n", irq);
+		goto rpm_disable;
+	}
+
 	/* Set up clock divider */
 	i2c_imx->bitrate = I2C_MAX_STANDARD_MODE_FREQ;
 	ret = of_property_read_u32(pdev->dev.of_node,
@@ -1239,13 +1239,12 @@ static int i2c_imx_probe(struct platform_device *pdev)
 
 clk_notifier_unregister:
 	clk_notifier_unregister(i2c_imx->clk, &i2c_imx->clk_change_nb);
+	free_irq(irq, i2c_imx);
 rpm_disable:
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
-
-clk_disable:
 	clk_disable_unprepare(i2c_imx->clk);
 	return ret;
 }
@@ -1253,7 +1252,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
 static int i2c_imx_remove(struct platform_device *pdev)
 {
 	struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev);
-	int ret;
+	int irq, ret;
 
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0)
@@ -1273,6 +1272,9 @@ static int i2c_imx_remove(struct platform_device *pdev)
 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_I2SR);
 
 	clk_notifier_unregister(i2c_imx->clk, &i2c_imx->clk_change_nb);
+	irq = platform_get_irq(pdev, 0);
+	if (irq >= 0)
+		free_irq(irq, i2c_imx);
 	clk_disable_unprepare(i2c_imx->clk);
 
 	pm_runtime_put_noidle(&pdev->dev);
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 9a810e4a7946..d09b807e1c3a 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1212,14 +1212,13 @@ static bool __init intel_idle_acpi_cst_extract(void)
 		if (!intel_idle_cst_usable())
 			continue;
 
-		if (!acpi_processor_claim_cst_control()) {
-			acpi_state_table.count = 0;
-			return false;
-		}
+		if (!acpi_processor_claim_cst_control())
+			break;
 
 		return true;
 	}
 
+	acpi_state_table.count = 0;
 	pr_debug("ACPI _CST not found or not usable\n");
 	return false;
 }
@@ -1236,7 +1235,7 @@ static void __init intel_idle_init_cstates_acpi(struct cpuidle_driver *drv)
 		struct acpi_processor_cx *cx;
 		struct cpuidle_state *state;
 
-		if (intel_idle_max_cstate_reached(cstate))
+		if (intel_idle_max_cstate_reached(cstate - 1))
 			break;
 
 		cx = &acpi_state_table.states[cstate];
diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
index 2eafbe7ac7c7..ab204e9199e9 100644
--- a/drivers/iio/adc/ad7292.c
+++ b/drivers/iio/adc/ad7292.c
@@ -310,8 +310,10 @@ static int ad7292_probe(struct spi_device *spi)
 
 	for_each_available_child_of_node(spi->dev.of_node, child) {
 		diff_channels = of_property_read_bool(child, "diff-channels");
-		if (diff_channels)
+		if (diff_channels) {
+			of_node_put(child);
 			break;
+		}
 	}
 
 	if (diff_channels) {
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index de9583d6cddd..f94641193b98 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -884,7 +884,7 @@ static bool at91_adc_current_chan_is_touch(struct iio_dev *indio_dev)
 			       AT91_SAMA5D2_MAX_CHAN_IDX + 1);
 }
 
-static int at91_adc_buffer_preenable(struct iio_dev *indio_dev)
+static int at91_adc_buffer_prepare(struct iio_dev *indio_dev)
 {
 	int ret;
 	u8 bit;
@@ -901,7 +901,7 @@ static int at91_adc_buffer_preenable(struct iio_dev *indio_dev)
 	/* we continue with the triggered buffer */
 	ret = at91_adc_dma_start(indio_dev);
 	if (ret) {
-		dev_err(&indio_dev->dev, "buffer postenable failed\n");
+		dev_err(&indio_dev->dev, "buffer prepare failed\n");
 		return ret;
 	}
 
@@ -989,7 +989,6 @@ static int at91_adc_buffer_postdisable(struct iio_dev *indio_dev)
 }
 
 static const struct iio_buffer_setup_ops at91_buffer_setup_ops = {
-	.preenable = &at91_adc_buffer_preenable,
 	.postdisable = &at91_adc_buffer_postdisable,
 };
 
@@ -1563,6 +1562,7 @@ static void at91_adc_dma_disable(struct platform_device *pdev)
 static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)
 {
 	struct at91_adc_state *st = iio_priv(indio_dev);
+	int ret;
 
 	if (val > AT91_HWFIFO_MAX_SIZE)
 		return -EINVAL;
@@ -1586,7 +1586,15 @@ static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)
 	else if (val > 1)
 		at91_adc_dma_init(to_platform_device(&indio_dev->dev));
 
-	return 0;
+	/*
+	 * We can start the DMA only after setting the watermark and
+	 * having the DMA initialization completed
+	 */
+	ret = at91_adc_buffer_prepare(indio_dev);
+	if (ret)
+		at91_adc_dma_disable(to_platform_device(&indio_dev->dev));
+
+	return ret;
 }
 
 static int at91_adc_update_scan_mode(struct iio_dev *indio_dev,
diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index d2c1419e72a0..34fa189e9b5e 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -357,7 +357,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3);
 			break;
 		default:
-			return -EINVAL;
+			goto err_e_inval;
 		}
 
 		/*
@@ -374,7 +374,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 				dev_err(dev,
 					"Failed to get child reg property of ADC \"%pOFn\".\n",
 					child);
-				return ret;
+				goto err_of_node_put;
 			}
 
 			/* Channel number is too high. */
@@ -382,7 +382,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 				dev_err(dev,
 					"Only %i channels supported with %pOFn, but reg = <%i>.\n",
 					num_channels, child, reg);
-				return -EINVAL;
+				goto err_e_inval;
 			}
 		}
 
@@ -391,7 +391,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			dev_err(dev,
 				"Channel %i uses different ADC mode than the rest.\n",
 				reg);
-			return -EINVAL;
+			goto err_e_inval;
 		}
 
 		/* Channel is valid, grab the regulator. */
@@ -401,7 +401,8 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 		if (IS_ERR(vref)) {
 			dev_dbg(dev, "Channel %i 'vref' supply not connected.\n",
 				reg);
-			return PTR_ERR(vref);
+			ret = PTR_ERR(vref);
+			goto err_of_node_put;
 		}
 
 		priv->vref[reg] = vref;
@@ -425,8 +426,10 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 		 * attached to the GyroADC at a time, so if we found it,
 		 * we can stop parsing here.
 		 */
-		if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A)
+		if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) {
+			of_node_put(child);
 			break;
+		}
 	}
 
 	if (first) {
@@ -435,6 +438,12 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 	}
 
 	return 0;
+
+err_e_inval:
+	ret = -EINVAL;
+err_of_node_put:
+	of_node_put(child);
+	return ret;
 }
 
 static void rcar_gyroadc_deinit_supplies(struct iio_dev *indio_dev)
diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c
index c7a085dce1f4..0261b3cfc92b 100644
--- a/drivers/iio/adc/ti-adc0832.c
+++ b/drivers/iio/adc/ti-adc0832.c
@@ -29,6 +29,12 @@ struct adc0832 {
 	struct regulator *reg;
 	struct mutex lock;
 	u8 mux_bits;
+	/*
+	 * Max size needed: 16x 1 byte ADC data + 8 bytes timestamp
+	 * May be shorter if not all channels are enabled subject
+	 * to the timestamp remaining 8 byte aligned.
+	 */
+	u8 data[24] __aligned(8);
 
 	u8 tx_buf[2] ____cacheline_aligned;
 	u8 rx_buf[2];
@@ -200,7 +206,6 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adc0832 *adc = iio_priv(indio_dev);
-	u8 data[24] = { }; /* 16x 1 byte ADC data + 8 bytes timestamp */
 	int scan_index;
 	int i = 0;
 
@@ -218,10 +223,10 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
 			goto out;
 		}
 
-		data[i] = ret;
+		adc->data[i] = ret;
 		i++;
 	}
-	iio_push_to_buffers_with_timestamp(indio_dev, data,
+	iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
 					   iio_get_time_ns(indio_dev));
 out:
 	mutex_unlock(&adc->lock);
diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c
index e485719cd2c4..fcd5d39dd03e 100644
--- a/drivers/iio/adc/ti-adc12138.c
+++ b/drivers/iio/adc/ti-adc12138.c
@@ -47,6 +47,12 @@ struct adc12138 {
 	struct completion complete;
 	/* The number of cclk periods for the S/H's acquisition time */
 	unsigned int acquisition_time;
+	/*
+	 * Maximum size needed: 16x 2 bytes ADC data + 8 bytes timestamp.
+	 * Less may be need if not all channels are enabled, as long as
+	 * the 8 byte alignment of the timestamp is maintained.
+	 */
+	__be16 data[20] __aligned(8);
 
 	u8 tx_buf[2] ____cacheline_aligned;
 	u8 rx_buf[2];
@@ -329,7 +335,6 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adc12138 *adc = iio_priv(indio_dev);
-	__be16 data[20] = { }; /* 16x 2 bytes ADC data + 8 bytes timestamp */
 	__be16 trash;
 	int ret;
 	int scan_index;
@@ -345,7 +350,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 		reinit_completion(&adc->complete);
 
 		ret = adc12138_start_and_read_conv(adc, scan_chan,
-						   i ? &data[i - 1] : &trash);
+					i ? &adc->data[i - 1] : &trash);
 		if (ret) {
 			dev_warn(&adc->spi->dev,
 				 "failed to start conversion\n");
@@ -362,7 +367,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 	}
 
 	if (i) {
-		ret = adc12138_read_conv_data(adc, &data[i - 1]);
+		ret = adc12138_read_conv_data(adc, &adc->data[i - 1]);
 		if (ret) {
 			dev_warn(&adc->spi->dev,
 				 "failed to get conversion data\n");
@@ -370,7 +375,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 		}
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data,
+	iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
 					   iio_get_time_ns(indio_dev));
 out:
 	mutex_unlock(&adc->lock);
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index d3fbe9d86467..1c3c1bd53374 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -46,13 +46,20 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct itg3200 *st = iio_priv(indio_dev);
-	__be16 buf[ITG3200_SCAN_ELEMENTS + sizeof(s64)/sizeof(u16)];
-
-	int ret = itg3200_read_all_channels(st->i2c, buf);
+	/*
+	 * Ensure correct alignment and padding including for the
+	 * timestamp that may be inserted.
+	 */
+	struct {
+		__be16 buf[ITG3200_SCAN_ELEMENTS];
+		s64 ts __aligned(8);
+	} scan;
+
+	int ret = itg3200_read_all_channels(st->i2c, scan.buf);
 	if (ret < 0)
 		goto error_ret;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp);
+	iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index cd38b3fccc7b..eb522b38acf3 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -122,6 +122,13 @@ struct inv_mpu6050_chip_config {
 	u8 user_ctrl;
 };
 
+/*
+ * Maximum of 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8.
+ * May be less if fewer channels are enabled, as long as the timestamp
+ * remains 8 byte aligned
+ */
+#define INV_MPU6050_OUTPUT_DATA_SIZE         32
+
 /**
  *  struct inv_mpu6050_hw - Other important hardware information.
  *  @whoami:	Self identification byte from WHO_AM_I register
@@ -165,6 +172,7 @@ struct inv_mpu6050_hw {
  *  @magn_raw_to_gauss:	coefficient to convert mag raw value to Gauss.
  *  @magn_orient:       magnetometer sensor chip orientation if available.
  *  @suspended_sensors:	sensors mask of sensors turned off for suspend
+ *  @data:		dma safe buffer used for bulk reads.
  */
 struct inv_mpu6050_state {
 	struct mutex lock;
@@ -190,6 +198,7 @@ struct inv_mpu6050_state {
 	s32 magn_raw_to_gauss[3];
 	struct iio_mount_matrix magn_orient;
 	unsigned int suspended_sensors;
+	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] ____cacheline_aligned;
 };
 
 /*register and associated bit definition*/
@@ -334,9 +343,6 @@ struct inv_mpu6050_state {
 #define INV_ICM20608_TEMP_OFFSET	     8170
 #define INV_ICM20608_TEMP_SCALE		     3059976
 
-/* 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8 */
-#define INV_MPU6050_OUTPUT_DATA_SIZE         32
-
 #define INV_MPU6050_REG_INT_PIN_CFG	0x37
 #define INV_MPU6050_ACTIVE_HIGH		0x00
 #define INV_MPU6050_ACTIVE_LOW		0x80
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index b533fa2dad0a..d8e6b88ddffc 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -13,7 +13,6 @@
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/math64.h>
-#include <asm/unaligned.h>
 #include "inv_mpu_iio.h"
 
 /**
@@ -121,7 +120,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	struct inv_mpu6050_state *st = iio_priv(indio_dev);
 	size_t bytes_per_datum;
 	int result;
-	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE];
 	u16 fifo_count;
 	s64 timestamp;
 	int int_status;
@@ -160,11 +158,11 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	 * read fifo_count register to know how many bytes are inside the FIFO
 	 * right now
 	 */
-	result = regmap_bulk_read(st->map, st->reg->fifo_count_h, data,
-				  INV_MPU6050_FIFO_COUNT_BYTE);
+	result = regmap_bulk_read(st->map, st->reg->fifo_count_h,
+				  st->data, INV_MPU6050_FIFO_COUNT_BYTE);
 	if (result)
 		goto end_session;
-	fifo_count = get_unaligned_be16(&data[0]);
+	fifo_count = be16_to_cpup((__be16 *)&st->data[0]);
 
 	/*
 	 * Handle fifo overflow by resetting fifo.
@@ -182,7 +180,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	inv_mpu6050_update_period(st, pf->timestamp, nb);
 	for (i = 0; i < nb; ++i) {
 		result = regmap_bulk_read(st->map, st->reg->fifo_r_w,
-					  data, bytes_per_datum);
+					  st->data, bytes_per_datum);
 		if (result)
 			goto flush_fifo;
 		/* skip first samples if needed */
@@ -191,7 +189,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 			continue;
 		}
 		timestamp = inv_mpu6050_get_timestamp(st);
-		iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp);
+		iio_push_to_buffers_with_timestamp(indio_dev, st->data, timestamp);
 	}
 
 end_session:
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index d80ba2e688ed..9275346a9cc1 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -383,6 +383,7 @@ struct st_lsm6dsx_sensor {
  * @iio_devs: Pointers to acc/gyro iio_dev instances.
  * @settings: Pointer to the specific sensor settings in use.
  * @orientation: sensor chip orientation relative to main hardware.
+ * @scan: Temporary buffers used to align data before iio_push_to_buffers()
  */
 struct st_lsm6dsx_hw {
 	struct device *dev;
@@ -411,6 +412,11 @@ struct st_lsm6dsx_hw {
 	const struct st_lsm6dsx_settings *settings;
 
 	struct iio_mount_matrix orientation;
+	/* Ensure natural alignment of buffer elements */
+	struct {
+		__le16 channels[3];
+		s64 ts __aligned(8);
+	} scan[3];
 };
 
 static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = {
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 7de10bd636ea..12ed0a2e55e4 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -353,9 +353,6 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 	int err, sip, acc_sip, gyro_sip, ts_sip, ext_sip, read_len, offset;
 	u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE;
 	u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask;
-	u8 gyro_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
-	u8 acc_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
-	u8 ext_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
 	bool reset_ts = false;
 	__le16 fifo_status;
 	s64 ts = 0;
@@ -416,19 +413,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 
 		while (acc_sip > 0 || gyro_sip > 0 || ext_sip > 0) {
 			if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) {
-				memcpy(gyro_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_GYRO].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels);
 			}
 			if (acc_sip > 0 && !(sip % acc_sensor->decimator)) {
-				memcpy(acc_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_ACC].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels);
 			}
 			if (ext_sip > 0 && !(sip % ext_sensor->decimator)) {
-				memcpy(ext_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_EXT0].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels);
 			}
 
 			if (ts_sip-- > 0) {
@@ -458,19 +458,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 			if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_GYRO],
-					gyro_buff, gyro_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_GYRO],
+					gyro_sensor->ts_ref + ts);
 				gyro_sip--;
 			}
 			if (acc_sip > 0 && !(sip % acc_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_ACC],
-					acc_buff, acc_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_ACC],
+					acc_sensor->ts_ref + ts);
 				acc_sip--;
 			}
 			if (ext_sip > 0 && !(sip % ext_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_EXT0],
-					ext_buff, ext_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_EXT0],
+					ext_sensor->ts_ref + ts);
 				ext_sip--;
 			}
 			sip++;
@@ -555,7 +558,14 @@ int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw)
 {
 	u16 pattern_len = hw->sip * ST_LSM6DSX_TAGGED_SAMPLE_SIZE;
 	u16 fifo_len, fifo_diff_mask;
-	u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE], tag;
+	/*
+	 * Alignment needed as this can ultimately be passed to a
+	 * call to iio_push_to_buffers_with_timestamp() which
+	 * must be passed a buffer that is aligned to 8 bytes so
+	 * as to allow insertion of a naturally aligned timestamp.
+	 */
+	u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE] __aligned(8);
+	u8 tag;
 	bool reset_ts = false;
 	int i, err, read_len;
 	__le16 fifo_status;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
index ed83471dc7dd..8c8d8870ca07 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
@@ -313,6 +313,8 @@ st_lsm6dsx_shub_read(struct st_lsm6dsx_sensor *sensor, u8 addr,
 
 	err = st_lsm6dsx_shub_read_output(hw, data,
 					  len & ST_LS6DSX_READ_OP_MASK);
+	if (err < 0)
+		return err;
 
 	st_lsm6dsx_shub_master_enable(sensor, false);
 
diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index 8f5f857c2e7d..b304801c7916 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -168,6 +168,7 @@ struct si1145_part_info {
  * @part_info:	Part information
  * @trig:	Pointer to iio trigger
  * @meas_rate:	Value of MEAS_RATE register. Only set in HW in auto mode
+ * @buffer:	Used to pack data read from sensor.
  */
 struct si1145_data {
 	struct i2c_client *client;
@@ -179,6 +180,14 @@ struct si1145_data {
 	bool autonomous;
 	struct iio_trigger *trig;
 	int meas_rate;
+	/*
+	 * Ensure timestamp will be naturally aligned if present.
+	 * Maximum buffer size (may be only partly used if not all
+	 * channels are enabled):
+	 *   6*2 bytes channels data + 4 bytes alignment +
+	 *   8 bytes timestamp
+	 */
+	u8 buffer[24] __aligned(8);
 };
 
 /*
@@ -440,12 +449,6 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 	struct iio_poll_func *pf = private;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct si1145_data *data = iio_priv(indio_dev);
-	/*
-	 * Maximum buffer size:
-	 *   6*2 bytes channels data + 4 bytes alignment +
-	 *   8 bytes timestamp
-	 */
-	u8 buffer[24];
 	int i, j = 0;
 	int ret;
 	u8 irq_status = 0;
@@ -478,7 +481,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 
 		ret = i2c_smbus_read_i2c_block_data_or_emulated(
 				data->client, indio_dev->channels[i].address,
-				sizeof(u16) * run, &buffer[j]);
+				sizeof(u16) * run, &data->buffer[j]);
 		if (ret < 0)
 			goto done;
 		j += run * sizeof(u16);
@@ -493,7 +496,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 			goto done;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
 		iio_get_time_ns(indio_dev));
 
 done:
diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 55ff28a0f1c7..3b5ba26d7d86 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -1285,18 +1285,20 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 		ret = of_property_read_u32(child, "reg", &sensor.chan);
 		if (ret) {
 			dev_err(dev, "reg property must given for child nodes\n");
-			return ret;
+			goto put_child;
 		}
 
 		/* check if we have a valid channel */
 		if (sensor.chan < LTC2983_MIN_CHANNELS_NR ||
 		    sensor.chan > LTC2983_MAX_CHANNELS_NR) {
+			ret = -EINVAL;
 			dev_err(dev,
 				"chan:%d must be from 1 to 20\n", sensor.chan);
-			return -EINVAL;
+			goto put_child;
 		} else if (channel_avail_mask & BIT(sensor.chan)) {
+			ret = -EINVAL;
 			dev_err(dev, "chan:%d already in use\n", sensor.chan);
-			return -EINVAL;
+			goto put_child;
 		}
 
 		ret = of_property_read_u32(child, "adi,sensor-type",
@@ -1304,7 +1306,7 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 		if (ret) {
 			dev_err(dev,
 				"adi,sensor-type property must given for child nodes\n");
-			return ret;
+			goto put_child;
 		}
 
 		dev_dbg(dev, "Create new sensor, type %u, chann %u",
@@ -1334,13 +1336,15 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 			st->sensors[chan] = ltc2983_adc_new(child, st, &sensor);
 		} else {
 			dev_err(dev, "Unknown sensor type %d\n", sensor.type);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto put_child;
 		}
 
 		if (IS_ERR(st->sensors[chan])) {
 			dev_err(dev, "Failed to create sensor %ld",
 				PTR_ERR(st->sensors[chan]));
-			return PTR_ERR(st->sensors[chan]);
+			ret = PTR_ERR(st->sensors[chan]);
+			goto put_child;
 		}
 		/* set generic sensor parameters */
 		st->sensors[chan]->chan = sensor.chan;
@@ -1351,6 +1355,9 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 	}
 
 	return 0;
+put_child:
+	of_node_put(child);
+	return ret;
 }
 
 static int ltc2983_setup(struct ltc2983_data *st, bool assign_iio)
diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 6d3ed7c6e19e..3962da54ffbf 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -130,17 +130,6 @@ static int uverbs_destroy_uobject(struct ib_uobject *uobj,
 	lockdep_assert_held(&ufile->hw_destroy_rwsem);
 	assert_uverbs_usecnt(uobj, UVERBS_LOOKUP_WRITE);
 
-	if (reason == RDMA_REMOVE_ABORT_HWOBJ) {
-		reason = RDMA_REMOVE_ABORT;
-		ret = uobj->uapi_object->type_class->destroy_hw(uobj, reason,
-								attrs);
-		/*
-		 * Drivers are not permitted to ignore RDMA_REMOVE_ABORT, see
-		 * ib_is_destroy_retryable, cleanup_retryable == false here.
-		 */
-		WARN_ON(ret);
-	}
-
 	if (reason == RDMA_REMOVE_ABORT) {
 		WARN_ON(!list_empty(&uobj->list));
 		WARN_ON(!uobj->context);
@@ -674,11 +663,22 @@ void rdma_alloc_abort_uobject(struct ib_uobject *uobj,
 			      bool hw_obj_valid)
 {
 	struct ib_uverbs_file *ufile = uobj->ufile;
+	int ret;
+
+	if (hw_obj_valid) {
+		ret = uobj->uapi_object->type_class->destroy_hw(
+			uobj, RDMA_REMOVE_ABORT, attrs);
+		/*
+		 * If the driver couldn't destroy the object then go ahead and
+		 * commit it. Leaking objects that can't be destroyed is only
+		 * done during FD close after the driver has a few more tries to
+		 * destroy it.
+		 */
+		if (WARN_ON(ret))
+			return rdma_alloc_commit_uobject(uobj, attrs);
+	}
 
-	uverbs_destroy_uobject(uobj,
-			       hw_obj_valid ? RDMA_REMOVE_ABORT_HWOBJ :
-					      RDMA_REMOVE_ABORT,
-			       attrs);
+	uverbs_destroy_uobject(uobj, RDMA_REMOVE_ABORT, attrs);
 
 	/* Matches the down_read in rdma_alloc_begin_uobject */
 	up_read(&ufile->hw_destroy_rwsem);
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index b805cc812465..2a7b5ffb2a2e 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3318,7 +3318,8 @@ static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev, u8 port_num)
 	int err;
 
 	dev->port[port_num].roce.nb.notifier_call = mlx5_netdev_event;
-	err = register_netdevice_notifier(&dev->port[port_num].roce.nb);
+	err = register_netdevice_notifier_net(mlx5_core_net(dev->mdev),
+					      &dev->port[port_num].roce.nb);
 	if (err) {
 		dev->port[port_num].roce.nb.notifier_call = NULL;
 		return err;
@@ -3330,7 +3331,8 @@ static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev, u8 port_num)
 static void mlx5_remove_netdev_notifier(struct mlx5_ib_dev *dev, u8 port_num)
 {
 	if (dev->port[port_num].roce.nb.notifier_call) {
-		unregister_netdevice_notifier(&dev->port[port_num].roce.nb);
+		unregister_netdevice_notifier_net(mlx5_core_net(dev->mdev),
+						  &dev->port[port_num].roce.nb);
 		dev->port[port_num].roce.nb.notifier_call = NULL;
 	}
 }
diff --git a/drivers/infiniband/hw/qedr/qedr_iw_cm.c b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
index c7169d2c69e5..c4bc58736e48 100644
--- a/drivers/infiniband/hw/qedr/qedr_iw_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
@@ -727,6 +727,7 @@ int qedr_iw_destroy_listen(struct iw_cm_id *cm_id)
 						    listener->qed_handle);
 
 	cm_id->rem_ref(cm_id);
+	kfree(listener);
 	return rc;
 }
 
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 65f4e9d62a67..d36e89d6fc54 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -74,7 +74,7 @@ EXPORT_SYMBOL(hil_mlc_unregister);
 static LIST_HEAD(hil_mlcs);
 static DEFINE_RWLOCK(hil_mlcs_lock);
 static struct timer_list	hil_mlcs_kicker;
-static int			hil_mlcs_probe;
+static int			hil_mlcs_probe, hil_mlc_stop;
 
 static void hil_mlcs_process(unsigned long unused);
 static DECLARE_TASKLET_DISABLED_OLD(hil_mlcs_tasklet, hil_mlcs_process);
@@ -702,9 +702,13 @@ static int hilse_donode(hil_mlc *mlc)
 		if (!mlc->ostarted) {
 			mlc->ostarted = 1;
 			mlc->opacket = pack;
-			mlc->out(mlc);
+			rc = mlc->out(mlc);
 			nextidx = HILSEN_DOZE;
 			write_unlock_irqrestore(&mlc->lock, flags);
+			if (rc) {
+				hil_mlc_stop = 1;
+				return 1;
+			}
 			break;
 		}
 		mlc->ostarted = 0;
@@ -715,8 +719,13 @@ static int hilse_donode(hil_mlc *mlc)
 
 	case HILSE_CTS:
 		write_lock_irqsave(&mlc->lock, flags);
-		nextidx = mlc->cts(mlc) ? node->bad : node->good;
+		rc = mlc->cts(mlc);
+		nextidx = rc ? node->bad : node->good;
 		write_unlock_irqrestore(&mlc->lock, flags);
+		if (rc) {
+			hil_mlc_stop = 1;
+			return 1;
+		}
 		break;
 
 	default:
@@ -780,6 +789,12 @@ static void hil_mlcs_process(unsigned long unused)
 
 static void hil_mlcs_timer(struct timer_list *unused)
 {
+	if (hil_mlc_stop) {
+		/* could not send packet - stop immediately. */
+		pr_warn(PREFIX "HIL seems stuck - Disabling HIL MLC.\n");
+		return;
+	}
+
 	hil_mlcs_probe = 1;
 	tasklet_schedule(&hil_mlcs_tasklet);
 	/* Re-insert the periodic task. */
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index 232d30c825bd..3e85e9039374 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -210,7 +210,7 @@ static int hp_sdc_mlc_cts(hil_mlc *mlc)
 	priv->tseq[2] = 1;
 	priv->tseq[3] = 0;
 	priv->tseq[4] = 0;
-	__hp_sdc_enqueue_transaction(&priv->trans);
+	return __hp_sdc_enqueue_transaction(&priv->trans);
  busy:
 	return 1;
  done:
@@ -219,7 +219,7 @@ static int hp_sdc_mlc_cts(hil_mlc *mlc)
 	return 0;
 }
 
-static void hp_sdc_mlc_out(hil_mlc *mlc)
+static int hp_sdc_mlc_out(hil_mlc *mlc)
 {
 	struct hp_sdc_mlc_priv_s *priv;
 
@@ -234,7 +234,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
  do_data:
 	if (priv->emtestmode) {
 		up(&mlc->osem);
-		return;
+		return 0;
 	}
 	/* Shouldn't be sending commands when loop may be busy */
 	BUG_ON(down_trylock(&mlc->csem));
@@ -296,7 +296,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
 		BUG_ON(down_trylock(&mlc->csem));
 	}
  enqueue:
-	hp_sdc_enqueue_transaction(&priv->trans);
+	return hp_sdc_enqueue_transaction(&priv->trans);
 }
 
 static int __init hp_sdc_mlc_init(void)
diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c
index f6c7b969520d..86f08c0f4c41 100644
--- a/drivers/interconnect/qcom/sdm845.c
+++ b/drivers/interconnect/qcom/sdm845.c
@@ -151,7 +151,7 @@ DEFINE_QBCM(bcm_mc0, "MC0", true, &ebi);
 DEFINE_QBCM(bcm_sh0, "SH0", true, &qns_llcc);
 DEFINE_QBCM(bcm_mm0, "MM0", false, &qns_mem_noc_hf);
 DEFINE_QBCM(bcm_sh1, "SH1", false, &qns_apps_io);
-DEFINE_QBCM(bcm_mm1, "MM1", false, &qxm_camnoc_hf0_uncomp, &qxm_camnoc_hf1_uncomp, &qxm_camnoc_sf_uncomp, &qxm_camnoc_hf0, &qxm_camnoc_hf1, &qxm_mdp0, &qxm_mdp1);
+DEFINE_QBCM(bcm_mm1, "MM1", true, &qxm_camnoc_hf0_uncomp, &qxm_camnoc_hf1_uncomp, &qxm_camnoc_sf_uncomp, &qxm_camnoc_hf0, &qxm_camnoc_hf1, &qxm_mdp0, &qxm_mdp1);
 DEFINE_QBCM(bcm_sh2, "SH2", false, &qns_memnoc_snoc);
 DEFINE_QBCM(bcm_mm2, "MM2", false, &qns2_mem_noc);
 DEFINE_QBCM(bcm_sh3, "SH3", false, &acm_tcu);
diff --git a/drivers/irqchip/irq-loongson-htvec.c b/drivers/irqchip/irq-loongson-htvec.c
index 13e6016fe464..6392aafb9a63 100644
--- a/drivers/irqchip/irq-loongson-htvec.c
+++ b/drivers/irqchip/irq-loongson-htvec.c
@@ -151,7 +151,7 @@ static void htvec_reset(struct htvec *priv)
 	/* Clear IRQ cause registers, mask all interrupts */
 	for (idx = 0; idx < priv->num_parents; idx++) {
 		writel_relaxed(0x0, priv->base + HTVEC_EN_OFF + 4 * idx);
-		writel_relaxed(0xFFFFFFFF, priv->base);
+		writel_relaxed(0xFFFFFFFF, priv->base + 4 * idx);
 	}
 }
 
@@ -172,7 +172,7 @@ static int htvec_of_init(struct device_node *node,
 		goto free_priv;
 	}
 
-	/* Interrupt may come from any of the 4 interrupt line */
+	/* Interrupt may come from any of the 8 interrupt lines */
 	for (i = 0; i < HTVEC_MAX_PARENT_IRQ; i++) {
 		parent_irq[i] = irq_of_parse_and_map(node, i);
 		if (parent_irq[i] <= 0)
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index bad7efb75112..df385c1d8a22 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -383,7 +383,7 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
 	led->cdev.brightness_set = bcm6328_led_set;
 	led->cdev.blink_set = bcm6328_blink_set;
 
-	rc = led_classdev_register(dev, &led->cdev);
+	rc = devm_led_classdev_register(dev, &led->cdev);
 	if (rc < 0)
 		return rc;
 
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index 94fefd456ba0..80145f9d7c14 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -137,7 +137,7 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
 
 	led->cdev.brightness_set = bcm6358_led_set;
 
-	rc = led_classdev_register(dev, &led->cdev);
+	rc = devm_led_classdev_register(dev, &led->cdev);
 	if (rc < 0)
 		return rc;
 
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index c61ab86a28b5..d910833feeb4 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1367,7 +1367,7 @@ __acquires(bitmap->lock)
 	if (bitmap->bp[page].hijacked ||
 	    bitmap->bp[page].map == NULL)
 		csize = ((sector_t)1) << (bitmap->chunkshift +
-					  PAGE_COUNTER_SHIFT - 1);
+					  PAGE_COUNTER_SHIFT);
 	else
 		csize = ((sector_t)1) << bitmap->chunkshift;
 	*blocks = csize - (offset & (csize - 1));
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 607278207023..cd3c249d8609 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -9545,7 +9545,7 @@ static int __init md_init(void)
 		goto err_misc_wq;
 
 	md_rdev_misc_wq = alloc_workqueue("md_rdev_misc", 0, 0);
-	if (!md_misc_wq)
+	if (!md_rdev_misc_wq)
 		goto err_rdev_misc_wq;
 
 	if ((ret = register_blkdev(MD_MAJOR, "md")) < 0)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 225380efd1e2..4839f41f0ada 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2429,8 +2429,6 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 	} else
 		err = -ENOMEM;
 
-	mutex_unlock(&conf->cache_size_mutex);
-
 	conf->slab_cache = sc;
 	conf->active_name = 1-conf->active_name;
 
@@ -2453,6 +2451,8 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 
 	if (!err)
 		conf->pool_size = newsize;
+	mutex_unlock(&conf->cache_size_mutex);
+
 	return err;
 }
 
diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c
index 6011cec5e351..e6aa9f32b6a8 100644
--- a/drivers/media/i2c/imx274.c
+++ b/drivers/media/i2c/imx274.c
@@ -1235,6 +1235,8 @@ static int imx274_s_frame_interval(struct v4l2_subdev *sd,
 	ret = imx274_set_frame_interval(imx274, fi->interval);
 
 	if (!ret) {
+		fi->interval = imx274->frame_interval;
+
 		/*
 		 * exposure time range is decided by frame interval
 		 * need to update it after frame interval changes
@@ -1730,9 +1732,9 @@ static int imx274_set_frame_interval(struct stimx274 *priv,
 		__func__, frame_interval.numerator,
 		frame_interval.denominator);
 
-	if (frame_interval.numerator == 0) {
-		err = -EINVAL;
-		goto fail;
+	if (frame_interval.numerator == 0 || frame_interval.denominator == 0) {
+		frame_interval.denominator = IMX274_DEF_FRAME_RATE;
+		frame_interval.numerator = 1;
 	}
 
 	req_frame_rate = (u32)(frame_interval.denominator
diff --git a/drivers/media/pci/tw5864/tw5864-video.c b/drivers/media/pci/tw5864/tw5864-video.c
index ec1e06da7e4f..a65114e7ca34 100644
--- a/drivers/media/pci/tw5864/tw5864-video.c
+++ b/drivers/media/pci/tw5864/tw5864-video.c
@@ -767,6 +767,9 @@ static int tw5864_enum_frameintervals(struct file *file, void *priv,
 	fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
 
 	ret = tw5864_frameinterval_get(input, &frameinterval);
+	if (ret)
+		return ret;
+
 	fintv->stepwise.step = frameinterval;
 	fintv->stepwise.min = frameinterval;
 	fintv->stepwise.max = frameinterval;
@@ -785,6 +788,9 @@ static int tw5864_g_parm(struct file *file, void *priv,
 	cp->capability = V4L2_CAP_TIMEPERFRAME;
 
 	ret = tw5864_frameinterval_get(input, &cp->timeperframe);
+	if (ret)
+		return ret;
+
 	cp->timeperframe.numerator *= input->frame_interval;
 	cp->capturemode = 0;
 	cp->readbuffers = 2;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 61fed1e35a00..b1ca4e3adae3 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -571,6 +571,13 @@ static int mtk_jpeg_queue_setup(struct vb2_queue *q,
 	if (!q_data)
 		return -EINVAL;
 
+	if (*num_planes) {
+		for (i = 0; i < *num_planes; i++)
+			if (sizes[i] < q_data->sizeimage[i])
+				return -EINVAL;
+		return 0;
+	}
+
 	*num_planes = q_data->fmt->colplanes;
 	for (i = 0; i < q_data->fmt->colplanes; i++) {
 		sizes[i] = q_data->sizeimage[i];
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index a30a8a731eda..36abe47997b0 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -1848,30 +1848,35 @@ int uvc_xu_ctrl_query(struct uvc_video_chain *chain,
 {
 	struct uvc_entity *entity;
 	struct uvc_control *ctrl;
-	unsigned int i, found = 0;
+	unsigned int i;
+	bool found;
 	u32 reqflags;
 	u16 size;
 	u8 *data = NULL;
 	int ret;
 
 	/* Find the extension unit. */
+	found = false;
 	list_for_each_entry(entity, &chain->entities, chain) {
 		if (UVC_ENTITY_TYPE(entity) == UVC_VC_EXTENSION_UNIT &&
-		    entity->id == xqry->unit)
+		    entity->id == xqry->unit) {
+			found = true;
 			break;
+		}
 	}
 
-	if (entity->id != xqry->unit) {
+	if (!found) {
 		uvc_trace(UVC_TRACE_CONTROL, "Extension unit %u not found.\n",
 			xqry->unit);
 		return -ENOENT;
 	}
 
 	/* Find the control and perform delayed initialization if needed. */
+	found = false;
 	for (i = 0; i < entity->ncontrols; ++i) {
 		ctrl = &entity->controls[i];
 		if (ctrl->index == xqry->selector - 1) {
-			found = 1;
+			found = true;
 			break;
 		}
 	}
@@ -2028,13 +2033,6 @@ static int uvc_ctrl_add_info(struct uvc_device *dev, struct uvc_control *ctrl,
 		goto done;
 	}
 
-	/*
-	 * Retrieve control flags from the device. Ignore errors and work with
-	 * default flag values from the uvc_ctrl array when the device doesn't
-	 * properly implement GET_INFO on standard controls.
-	 */
-	uvc_ctrl_get_flags(dev, ctrl, &ctrl->info);
-
 	ctrl->initialized = 1;
 
 	uvc_trace(UVC_TRACE_CONTROL, "Added control %pUl/%u to device %s "
@@ -2257,6 +2255,13 @@ static void uvc_ctrl_init_ctrl(struct uvc_device *dev, struct uvc_control *ctrl)
 		if (uvc_entity_match_guid(ctrl->entity, info->entity) &&
 		    ctrl->index == info->index) {
 			uvc_ctrl_add_info(dev, ctrl, info);
+			/*
+			 * Retrieve control flags from the device. Ignore errors
+			 * and work with default flag values from the uvc_ctrl
+			 * array when the device doesn't properly implement
+			 * GET_INFO on standard controls.
+			 */
+			uvc_ctrl_get_flags(dev, ctrl, &ctrl->info);
 			break;
 		 }
 	}
diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c
index ddff687c79ea..dcf50bb8dd69 100644
--- a/drivers/memory/brcmstb_dpfe.c
+++ b/drivers/memory/brcmstb_dpfe.c
@@ -656,8 +656,10 @@ static int brcmstb_dpfe_download_firmware(struct brcmstb_dpfe_priv *priv)
 		return (ret == -ENOENT) ? -EPROBE_DEFER : ret;
 
 	ret = __verify_firmware(&init, fw);
-	if (ret)
-		return -EFAULT;
+	if (ret) {
+		ret = -EFAULT;
+		goto release_fw;
+	}
 
 	__disable_dcpu(priv);
 
@@ -676,18 +678,20 @@ static int brcmstb_dpfe_download_firmware(struct brcmstb_dpfe_priv *priv)
 
 	ret = __write_firmware(priv->dmem, dmem, dmem_size, is_big_endian);
 	if (ret)
-		return ret;
+		goto release_fw;
 	ret = __write_firmware(priv->imem, imem, imem_size, is_big_endian);
 	if (ret)
-		return ret;
+		goto release_fw;
 
 	ret = __verify_fw_checksum(&init, priv, header, init.chksum);
 	if (ret)
-		return ret;
+		goto release_fw;
 
 	__enable_dcpu(priv);
 
-	return 0;
+release_fw:
+	release_firmware(fw);
+	return ret;
 }
 
 static ssize_t generic_show(unsigned int command, u32 response[],
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index bb6a71d26798..5c4d8319c9cf 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -163,35 +163,12 @@ static const struct file_operations emif_mr4_fops = {
 
 static int __init_or_module emif_debugfs_init(struct emif_data *emif)
 {
-	struct dentry	*dentry;
-	int		ret;
-
-	dentry = debugfs_create_dir(dev_name(emif->dev), NULL);
-	if (!dentry) {
-		ret = -ENOMEM;
-		goto err0;
-	}
-	emif->debugfs_root = dentry;
-
-	dentry = debugfs_create_file("regcache_dump", S_IRUGO,
-			emif->debugfs_root, emif, &emif_regdump_fops);
-	if (!dentry) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	dentry = debugfs_create_file("mr4", S_IRUGO,
-			emif->debugfs_root, emif, &emif_mr4_fops);
-	if (!dentry) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
+	emif->debugfs_root = debugfs_create_dir(dev_name(emif->dev), NULL);
+	debugfs_create_file("regcache_dump", S_IRUGO, emif->debugfs_root, emif,
+			    &emif_regdump_fops);
+	debugfs_create_file("mr4", S_IRUGO, emif->debugfs_root, emif,
+			    &emif_mr4_fops);
 	return 0;
-err1:
-	debugfs_remove_recursive(emif->debugfs_root);
-err0:
-	return ret;
 }
 
 static void __exit emif_debugfs_exit(struct emif_data *emif)
diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index 493b5dc3a4b3..0cede24479bf 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -957,7 +957,6 @@ static const struct tegra_smmu_swgroup tegra124_swgroups[] = {
 static const unsigned int tegra124_group_drm[] = {
 	TEGRA_SWGROUP_DC,
 	TEGRA_SWGROUP_DCB,
-	TEGRA_SWGROUP_GPU,
 	TEGRA_SWGROUP_VIC,
 };
 
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 8543f0324d5a..0d1b2b0eb843 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1176,8 +1176,10 @@ mptscsih_remove(struct pci_dev *pdev)
 	MPT_SCSI_HOST		*hd;
 	int sz1;
 
-	if((hd = shost_priv(host)) == NULL)
-		return;
+	if (host == NULL)
+		hd = NULL;
+	else
+		hd = shost_priv(host);
 
 	mptscsih_shutdown(pdev);
 
@@ -1193,14 +1195,15 @@ mptscsih_remove(struct pci_dev *pdev)
 	    "Free'd ScsiLookup (%d) memory\n",
 	    ioc->name, sz1));
 
-	kfree(hd->info_kbuf);
+	if (hd)
+		kfree(hd->info_kbuf);
 
 	/* NULL the Scsi_Host pointer
 	 */
 	ioc->sh = NULL;
 
-	scsi_host_put(host);
-
+	if (host)
+		scsi_host_put(host);
 	mpt_detach(pdev);
 
 }
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 7939c55daceb..9d6867749316 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -518,7 +518,7 @@ fastrpc_map_dma_buf(struct dma_buf_attachment *attachment,
 
 	table = &a->sgt;
 
-	if (!dma_map_sg(attachment->dev, table->sgl, table->nents, dir))
+	if (!dma_map_sgtable(attachment->dev, table, dir, 0))
 		return ERR_PTR(-ENOMEM);
 
 	return table;
@@ -528,7 +528,7 @@ static void fastrpc_unmap_dma_buf(struct dma_buf_attachment *attach,
 				  struct sg_table *table,
 				  enum dma_data_direction dir)
 {
-	dma_unmap_sg(attach->dev, table->sgl, table->nents, dir);
+	dma_unmap_sgtable(attach->dev, table, dir, 0);
 }
 
 static void fastrpc_release(struct dma_buf *dmabuf)
diff --git a/drivers/misc/habanalabs/gaudi/gaudi_security.c b/drivers/misc/habanalabs/gaudi/gaudi_security.c
index 8d5d6ddee6ed..615b547ad2b7 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi_security.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi_security.c
@@ -831,8 +831,7 @@ static void gaudi_init_mme_protection_bits(struct hl_device *hdev)
 			PROT_BITS_OFFS;
 	word_offset = ((mmMME0_QM_ARB_MST_CHOISE_PUSH_OFST_23 &
 			PROT_BITS_OFFS) >> 7) << 2;
-	mask = 1 << ((mmMME0_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmMME0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmMME0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmMME0_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmMME0_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmMME0_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -1311,8 +1310,7 @@ static void gaudi_init_mme_protection_bits(struct hl_device *hdev)
 			PROT_BITS_OFFS;
 	word_offset = ((mmMME2_QM_ARB_MST_CHOISE_PUSH_OFST_23 &
 			PROT_BITS_OFFS) >> 7) << 2;
-	mask = 1 << ((mmMME2_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmMME2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmMME2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmMME2_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmMME2_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmMME2_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -1790,8 +1788,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA0_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA0_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA0_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA0_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA0_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -2186,8 +2183,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA1_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA1_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA1_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA1_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA1_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA1_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA1_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -2582,8 +2578,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA2_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA2_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA2_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA2_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA2_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -2978,8 +2973,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA3_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA3_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA3_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA3_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA3_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA3_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA3_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -3374,8 +3368,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA4_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA4_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA4_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA4_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA4_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA4_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA4_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -3770,8 +3763,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA5_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA5_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA5_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA5_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA5_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA5_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA5_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -4166,8 +4158,8 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA6_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA6_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA6_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+
+	mask = 1 << ((mmDMA6_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA6_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA6_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA6_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -4562,8 +4554,7 @@ static void gaudi_init_dma_protection_bits(struct hl_device *hdev)
 	word_offset =
 		((mmDMA7_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS) >> 7)
 		<< 2;
-	mask = 1 << ((mmDMA7_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmDMA7_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmDMA7_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA7_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA7_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmDMA7_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -5491,8 +5482,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 
 	word_offset = ((mmTPC0_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC0_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC0_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC0_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC0_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC0_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -5947,8 +5937,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 
 	word_offset = ((mmTPC1_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC1_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC1_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC1_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC1_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC1_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC1_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -6402,8 +6391,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 								PROT_BITS_OFFS;
 	word_offset = ((mmTPC2_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC2_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC2_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC2_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC2_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC2_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -6857,8 +6845,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 								PROT_BITS_OFFS;
 	word_offset = ((mmTPC3_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC3_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC3_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC3_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC3_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC3_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC3_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -7312,8 +7299,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 								PROT_BITS_OFFS;
 	word_offset = ((mmTPC4_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC4_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC4_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC4_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC4_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC4_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC4_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -7767,8 +7753,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 								PROT_BITS_OFFS;
 	word_offset = ((mmTPC5_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC5_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC5_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC5_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC5_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC5_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC5_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -8223,8 +8208,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 
 	word_offset = ((mmTPC6_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC6_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC6_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC6_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC6_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC6_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC6_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
@@ -8681,8 +8665,7 @@ static void gaudi_init_tpc_protection_bits(struct hl_device *hdev)
 			PROT_BITS_OFFS;
 	word_offset = ((mmTPC7_QM_ARB_MST_CHOISE_PUSH_OFST_23 & PROT_BITS_OFFS)
 								>> 7) << 2;
-	mask = 1 << ((mmTPC7_QM_ARB_MST_QUIET_PER & 0x7F) >> 2);
-	mask |= 1 << ((mmTPC7_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
+	mask = 1 << ((mmTPC7_QM_ARB_SLV_CHOISE_WDT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC7_QM_ARB_MSG_MAX_INFLIGHT & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC7_QM_ARB_MSG_AWUSER_31_11 & 0x7F) >> 2);
 	mask |= 1 << ((mmTPC7_QM_ARB_MSG_AWUSER_SEC_PROP & 0x7F) >> 2);
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 284cba11e279..d335a34ad05b 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -662,6 +662,43 @@ static int sdhci_acpi_emmc_amd_probe_slot(struct platform_device *pdev,
 	    (host->mmc->caps & MMC_CAP_1_8V_DDR))
 		host->mmc->caps2 = MMC_CAP2_HS400_1_8V;
 
+	/*
+	 * There are two types of presets out in the wild:
+	 * 1) Default/broken presets.
+	 *    These presets have two sets of problems:
+	 *    a) The clock divisor for SDR12, SDR25, and SDR50 is too small.
+	 *       This results in clock frequencies that are 2x higher than
+	 *       acceptable. i.e., SDR12 = 25 MHz, SDR25 = 50 MHz, SDR50 =
+	 *       100 MHz.x
+	 *    b) The HS200 and HS400 driver strengths don't match.
+	 *       By default, the SDR104 preset register has a driver strength of
+	 *       A, but the (internal) HS400 preset register has a driver
+	 *       strength of B. As part of initializing HS400, HS200 tuning
+	 *       needs to be performed. Having different driver strengths
+	 *       between tuning and operation is wrong. It results in different
+	 *       rise/fall times that lead to incorrect sampling.
+	 * 2) Firmware with properly initialized presets.
+	 *    These presets have proper clock divisors. i.e., SDR12 => 12MHz,
+	 *    SDR25 => 25 MHz, SDR50 => 50 MHz. Additionally the HS200 and
+	 *    HS400 preset driver strengths match.
+	 *
+	 *    Enabling presets for HS400 doesn't work for the following reasons:
+	 *    1) sdhci_set_ios has a hard coded list of timings that are used
+	 *       to determine if presets should be enabled.
+	 *    2) sdhci_get_preset_value is using a non-standard register to
+	 *       read out HS400 presets. The AMD controller doesn't support this
+	 *       non-standard register. In fact, it doesn't expose the HS400
+	 *       preset register anywhere in the SDHCI memory map. This results
+	 *       in reading a garbage value and using the wrong presets.
+	 *
+	 *       Since HS400 and HS200 presets must be identical, we could
+	 *       instead use the the SDR104 preset register.
+	 *
+	 *    If the above issues are resolved we could remove this quirk for
+	 *    firmware that that has valid presets (i.e., SDR12 <= 12 MHz).
+	 */
+	host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN;
+
 	host->mmc_host_ops.select_drive_strength = amd_select_drive_strength;
 	host->mmc_host_ops.set_ios = amd_set_ios;
 	host->mmc_host_ops.execute_tuning = amd_sdhci_execute_tuning;
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index a30796e79b1c..6de02f09c322 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -5,6 +5,7 @@
  * Copyright (c) 2007 Freescale Semiconductor, Inc.
  * Copyright (c) 2009 MontaVista Software, Inc.
  * Copyright (c) 2010 Pengutronix e.K.
+ * Copyright 2020 NXP
  *   Author: Wolfram Sang <kernel@pengutronix.de>
  */
 
@@ -88,6 +89,7 @@
 /* DLL Config 0 Register */
 #define ESDHC_DLLCFG0			0x160
 #define ESDHC_DLL_ENABLE		0x80000000
+#define ESDHC_DLL_RESET			0x40000000
 #define ESDHC_DLL_FREQ_SEL		0x08000000
 
 /* DLL Config 1 Register */
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 45881b309956..156e75302df5 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -4,6 +4,7 @@
  *
  * Copyright (c) 2007, 2010, 2012 Freescale Semiconductor, Inc.
  * Copyright (c) 2009 MontaVista Software, Inc.
+ * Copyright 2020 NXP
  *
  * Authors: Xiaobo Xie <X.Xie@freescale.com>
  *	    Anton Vorontsov <avorontsov@ru.mvista.com>
@@ -19,6 +20,7 @@
 #include <linux/clk.h>
 #include <linux/ktime.h>
 #include <linux/dma-mapping.h>
+#include <linux/iopoll.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>
 #include "sdhci-pltfm.h"
@@ -743,6 +745,21 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 		if (host->mmc->actual_clock == MMC_HS200_MAX_DTR)
 			temp |= ESDHC_DLL_FREQ_SEL;
 		sdhci_writel(host, temp, ESDHC_DLLCFG0);
+
+		temp |= ESDHC_DLL_RESET;
+		sdhci_writel(host, temp, ESDHC_DLLCFG0);
+		udelay(1);
+		temp &= ~ESDHC_DLL_RESET;
+		sdhci_writel(host, temp, ESDHC_DLLCFG0);
+
+		/* Wait max 20 ms */
+		if (read_poll_timeout(sdhci_readl, temp,
+				      temp & ESDHC_DLL_STS_SLV_LOCK,
+				      10, 20000, false,
+				      host, ESDHC_DLLSTAT0))
+			pr_err("%s: timeout for delay chain lock.\n",
+			       mmc_hostname(host->mmc));
+
 		temp = sdhci_readl(host, ESDHC_TBCTL);
 		sdhci_writel(host, temp | ESDHC_HS400_WNDW_ADJUST, ESDHC_TBCTL);
 
@@ -1052,6 +1069,17 @@ static int esdhc_execute_tuning(struct mmc_host *mmc, u32 opcode)
 
 	esdhc_tuning_block_enable(host, true);
 
+	/*
+	 * The eSDHC controller takes the data timeout value into account
+	 * during tuning. If the SD card is too slow sending the response, the
+	 * timer will expire and a "Buffer Read Ready" interrupt without data
+	 * is triggered. This leads to tuning errors.
+	 *
+	 * Just set the timeout to the maximum value because the core will
+	 * already take care of it in sdhci_send_tuning().
+	 */
+	sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
+
 	hs400_tuning = host->flags & SDHCI_HS400_TUNING;
 
 	do {
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 914f5184295f..23da7f7fe093 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -24,6 +24,8 @@
 #include <linux/iopoll.h>
 #include <linux/gpio.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_qos.h>
+#include <linux/debugfs.h>
 #include <linux/mmc/slot-gpio.h>
 #include <linux/mmc/sdhci-pci-data.h>
 #include <linux/acpi.h>
@@ -516,6 +518,8 @@ struct intel_host {
 	bool	rpm_retune_ok;
 	u32	glk_rx_ctrl1;
 	u32	glk_tun_val;
+	u32	active_ltr;
+	u32	idle_ltr;
 };
 
 static const guid_t intel_dsm_guid =
@@ -760,6 +764,108 @@ static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode)
 	return 0;
 }
 
+#define INTEL_ACTIVELTR		0x804
+#define INTEL_IDLELTR		0x808
+
+#define INTEL_LTR_REQ		BIT(15)
+#define INTEL_LTR_SCALE_MASK	GENMASK(11, 10)
+#define INTEL_LTR_SCALE_1US	(2 << 10)
+#define INTEL_LTR_SCALE_32US	(3 << 10)
+#define INTEL_LTR_VALUE_MASK	GENMASK(9, 0)
+
+static void intel_cache_ltr(struct sdhci_pci_slot *slot)
+{
+	struct intel_host *intel_host = sdhci_pci_priv(slot);
+	struct sdhci_host *host = slot->host;
+
+	intel_host->active_ltr = readl(host->ioaddr + INTEL_ACTIVELTR);
+	intel_host->idle_ltr = readl(host->ioaddr + INTEL_IDLELTR);
+}
+
+static void intel_ltr_set(struct device *dev, s32 val)
+{
+	struct sdhci_pci_chip *chip = dev_get_drvdata(dev);
+	struct sdhci_pci_slot *slot = chip->slots[0];
+	struct intel_host *intel_host = sdhci_pci_priv(slot);
+	struct sdhci_host *host = slot->host;
+	u32 ltr;
+
+	pm_runtime_get_sync(dev);
+
+	/*
+	 * Program latency tolerance (LTR) accordingly what has been asked
+	 * by the PM QoS layer or disable it in case we were passed
+	 * negative value or PM_QOS_LATENCY_ANY.
+	 */
+	ltr = readl(host->ioaddr + INTEL_ACTIVELTR);
+
+	if (val == PM_QOS_LATENCY_ANY || val < 0) {
+		ltr &= ~INTEL_LTR_REQ;
+	} else {
+		ltr |= INTEL_LTR_REQ;
+		ltr &= ~INTEL_LTR_SCALE_MASK;
+		ltr &= ~INTEL_LTR_VALUE_MASK;
+
+		if (val > INTEL_LTR_VALUE_MASK) {
+			val >>= 5;
+			if (val > INTEL_LTR_VALUE_MASK)
+				val = INTEL_LTR_VALUE_MASK;
+			ltr |= INTEL_LTR_SCALE_32US | val;
+		} else {
+			ltr |= INTEL_LTR_SCALE_1US | val;
+		}
+	}
+
+	if (ltr == intel_host->active_ltr)
+		goto out;
+
+	writel(ltr, host->ioaddr + INTEL_ACTIVELTR);
+	writel(ltr, host->ioaddr + INTEL_IDLELTR);
+
+	/* Cache the values into lpss structure */
+	intel_cache_ltr(slot);
+out:
+	pm_runtime_put_autosuspend(dev);
+}
+
+static bool intel_use_ltr(struct sdhci_pci_chip *chip)
+{
+	switch (chip->pdev->device) {
+	case PCI_DEVICE_ID_INTEL_BYT_EMMC:
+	case PCI_DEVICE_ID_INTEL_BYT_EMMC2:
+	case PCI_DEVICE_ID_INTEL_BYT_SDIO:
+	case PCI_DEVICE_ID_INTEL_BYT_SD:
+	case PCI_DEVICE_ID_INTEL_BSW_EMMC:
+	case PCI_DEVICE_ID_INTEL_BSW_SDIO:
+	case PCI_DEVICE_ID_INTEL_BSW_SD:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static void intel_ltr_expose(struct sdhci_pci_chip *chip)
+{
+	struct device *dev = &chip->pdev->dev;
+
+	if (!intel_use_ltr(chip))
+		return;
+
+	dev->power.set_latency_tolerance = intel_ltr_set;
+	dev_pm_qos_expose_latency_tolerance(dev);
+}
+
+static void intel_ltr_hide(struct sdhci_pci_chip *chip)
+{
+	struct device *dev = &chip->pdev->dev;
+
+	if (!intel_use_ltr(chip))
+		return;
+
+	dev_pm_qos_hide_latency_tolerance(dev);
+	dev->power.set_latency_tolerance = NULL;
+}
+
 static void byt_probe_slot(struct sdhci_pci_slot *slot)
 {
 	struct mmc_host_ops *ops = &slot->host->mmc_host_ops;
@@ -774,6 +880,43 @@ static void byt_probe_slot(struct sdhci_pci_slot *slot)
 	ops->start_signal_voltage_switch = intel_start_signal_voltage_switch;
 
 	device_property_read_u32(dev, "max-frequency", &mmc->f_max);
+
+	if (!mmc->slotno) {
+		slot->chip->slots[mmc->slotno] = slot;
+		intel_ltr_expose(slot->chip);
+	}
+}
+
+static void byt_add_debugfs(struct sdhci_pci_slot *slot)
+{
+	struct intel_host *intel_host = sdhci_pci_priv(slot);
+	struct mmc_host *mmc = slot->host->mmc;
+	struct dentry *dir = mmc->debugfs_root;
+
+	if (!intel_use_ltr(slot->chip))
+		return;
+
+	debugfs_create_x32("active_ltr", 0444, dir, &intel_host->active_ltr);
+	debugfs_create_x32("idle_ltr", 0444, dir, &intel_host->idle_ltr);
+
+	intel_cache_ltr(slot);
+}
+
+static int byt_add_host(struct sdhci_pci_slot *slot)
+{
+	int ret = sdhci_add_host(slot->host);
+
+	if (!ret)
+		byt_add_debugfs(slot);
+	return ret;
+}
+
+static void byt_remove_slot(struct sdhci_pci_slot *slot, int dead)
+{
+	struct mmc_host *mmc = slot->host->mmc;
+
+	if (!mmc->slotno)
+		intel_ltr_hide(slot->chip);
 }
 
 static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
@@ -855,6 +998,8 @@ static int glk_emmc_add_host(struct sdhci_pci_slot *slot)
 	if (ret)
 		goto cleanup;
 
+	byt_add_debugfs(slot);
+
 	return 0;
 
 cleanup:
@@ -1032,6 +1177,8 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
 #endif
 	.allow_runtime_pm = true,
 	.probe_slot	= byt_emmc_probe_slot,
+	.add_host	= byt_add_host,
+	.remove_slot	= byt_remove_slot,
 	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
 			  SDHCI_QUIRK_NO_LED,
 	.quirks2	= SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
@@ -1045,6 +1192,7 @@ static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = {
 	.allow_runtime_pm	= true,
 	.probe_slot		= glk_emmc_probe_slot,
 	.add_host		= glk_emmc_add_host,
+	.remove_slot		= byt_remove_slot,
 #ifdef CONFIG_PM_SLEEP
 	.suspend		= sdhci_cqhci_suspend,
 	.resume			= sdhci_cqhci_resume,
@@ -1075,6 +1223,8 @@ static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = {
 			  SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	.allow_runtime_pm = true,
 	.probe_slot	= ni_byt_sdio_probe_slot,
+	.add_host	= byt_add_host,
+	.remove_slot	= byt_remove_slot,
 	.ops		= &sdhci_intel_byt_ops,
 	.priv_size	= sizeof(struct intel_host),
 };
@@ -1092,6 +1242,8 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
 			SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	.allow_runtime_pm = true,
 	.probe_slot	= byt_sdio_probe_slot,
+	.add_host	= byt_add_host,
+	.remove_slot	= byt_remove_slot,
 	.ops		= &sdhci_intel_byt_ops,
 	.priv_size	= sizeof(struct intel_host),
 };
@@ -1111,6 +1263,8 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
 	.allow_runtime_pm = true,
 	.own_cd_for_runtime_pm = true,
 	.probe_slot	= byt_sd_probe_slot,
+	.add_host	= byt_add_host,
+	.remove_slot	= byt_remove_slot,
 	.ops		= &sdhci_intel_byt_ops,
 	.priv_size	= sizeof(struct intel_host),
 };
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 592a55a34b58..3561ae8a481a 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1384,9 +1384,11 @@ static inline void sdhci_auto_cmd_select(struct sdhci_host *host,
 	/*
 	 * In case of Version 4.10 or later, use of 'Auto CMD Auto
 	 * Select' is recommended rather than use of 'Auto CMD12
-	 * Enable' or 'Auto CMD23 Enable'.
+	 * Enable' or 'Auto CMD23 Enable'. We require Version 4 Mode
+	 * here because some controllers (e.g sdhci-of-dwmshc) expect it.
 	 */
-	if (host->version >= SDHCI_SPEC_410 && (use_cmd12 || use_cmd23)) {
+	if (host->version >= SDHCI_SPEC_410 && host->v4_mode &&
+	    (use_cmd12 || use_cmd23)) {
 		*mode |= SDHCI_TRNS_AUTO_SEL;
 
 		ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 49dab9f42b6d..9b755ea0fa03 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1257,11 +1257,14 @@ static void __maybe_unused via_init_sdc_pm(struct via_crdr_mmc_host *host)
 static int __maybe_unused via_sd_suspend(struct device *dev)
 {
 	struct via_crdr_mmc_host *host;
+	unsigned long flags;
 
 	host = dev_get_drvdata(dev);
 
+	spin_lock_irqsave(&host->lock, flags);
 	via_save_pcictrlreg(host);
 	via_save_sdcreg(host);
+	spin_unlock_irqrestore(&host->lock, flags);
 
 	device_wakeup_enable(dev);
 
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 42cac572f82d..7847de75a74c 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1639,6 +1639,19 @@ int ubi_thread(void *u)
 		    !ubi->thread_enabled || ubi_dbg_is_bgt_disabled(ubi)) {
 			set_current_state(TASK_INTERRUPTIBLE);
 			spin_unlock(&ubi->wl_lock);
+
+			/*
+			 * Check kthread_should_stop() after we set the task
+			 * state to guarantee that we either see the stop bit
+			 * and exit or the task state is reset to runnable such
+			 * that it's not scheduled out indefinitely and detects
+			 * the stop bit at kthread_should_stop().
+			 */
+			if (kthread_should_stop()) {
+				set_current_state(TASK_RUNNING);
+				break;
+			}
+
 			schedule();
 			continue;
 		}
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 2ac7a667bde3..bc21a82cf3a7 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1722,8 +1722,6 @@ static int __maybe_unused flexcan_suspend(struct device *device)
 			err = flexcan_chip_disable(priv);
 			if (err)
 				return err;
-
-			err = pm_runtime_force_suspend(device);
 		}
 		netif_stop_queue(dev);
 		netif_device_detach(dev);
@@ -1749,10 +1747,6 @@ static int __maybe_unused flexcan_resume(struct device *device)
 			if (err)
 				return err;
 		} else {
-			err = pm_runtime_force_resume(device);
-			if (err)
-				return err;
-
 			err = flexcan_chip_enable(priv);
 		}
 	}
@@ -1783,8 +1777,16 @@ static int __maybe_unused flexcan_noirq_suspend(struct device *device)
 	struct net_device *dev = dev_get_drvdata(device);
 	struct flexcan_priv *priv = netdev_priv(dev);
 
-	if (netif_running(dev) && device_may_wakeup(device))
-		flexcan_enable_wakeup_irq(priv, true);
+	if (netif_running(dev)) {
+		int err;
+
+		if (device_may_wakeup(device))
+			flexcan_enable_wakeup_irq(priv, true);
+
+		err = pm_runtime_force_suspend(device);
+		if (err)
+			return err;
+	}
 
 	return 0;
 }
@@ -1794,8 +1796,16 @@ static int __maybe_unused flexcan_noirq_resume(struct device *device)
 	struct net_device *dev = dev_get_drvdata(device);
 	struct flexcan_priv *priv = netdev_priv(dev);
 
-	if (netif_running(dev) && device_may_wakeup(device))
-		flexcan_enable_wakeup_irq(priv, false);
+	if (netif_running(dev)) {
+		int err;
+
+		err = pm_runtime_force_resume(device);
+		if (err)
+			return err;
+
+		if (device_may_wakeup(device))
+			flexcan_enable_wakeup_irq(priv, false);
+	}
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7b5d52192487..b8d534b719d4 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8735,6 +8735,11 @@ static void bnxt_report_link(struct bnxt *bp)
 		u16 fec;
 
 		netif_carrier_on(bp->dev);
+		speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
+		if (speed == SPEED_UNKNOWN) {
+			netdev_info(bp->dev, "NIC Link is Up, speed unknown\n");
+			return;
+		}
 		if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
 			duplex = "full";
 		else
@@ -8747,7 +8752,6 @@ static void bnxt_report_link(struct bnxt *bp)
 			flow_ctrl = "ON - receive";
 		else
 			flow_ctrl = "none";
-		speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
 		netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s duplex, Flow control: %s\n",
 			    speed, duplex, flow_ctrl);
 		if (bp->flags & BNXT_FLAG_EEE_CAP)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
index 3803af9231c6..c0ff5f70aa43 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/npc.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
@@ -77,6 +77,8 @@ enum npc_kpu_ld_ltype {
 	NPC_LT_LD_ICMP,
 	NPC_LT_LD_SCTP,
 	NPC_LT_LD_ICMP6,
+	NPC_LT_LD_CUSTOM0,
+	NPC_LT_LD_CUSTOM1,
 	NPC_LT_LD_IGMP = 8,
 	NPC_LT_LD_ESP,
 	NPC_LT_LD_AH,
@@ -85,8 +87,6 @@ enum npc_kpu_ld_ltype {
 	NPC_LT_LD_NSH,
 	NPC_LT_LD_TU_MPLS_IN_NSH,
 	NPC_LT_LD_TU_MPLS_IN_IP,
-	NPC_LT_LD_CUSTOM0 = 0xE,
-	NPC_LT_LD_CUSTOM1 = 0xF,
 };
 
 enum npc_kpu_le_ltype {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
index d046db7bb047..3a9fa629503f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
@@ -90,9 +90,4 @@ int mlx5_create_encryption_key(struct mlx5_core_dev *mdev,
 			       u32 key_type, u32 *p_key_id);
 void mlx5_destroy_encryption_key(struct mlx5_core_dev *mdev, u32 key_id);
 
-static inline struct net *mlx5_core_net(struct mlx5_core_dev *dev)
-{
-	return devlink_net(priv_to_devlink(dev));
-}
-
 #endif
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index f6aa80fe343f..05e90ef15871 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -607,6 +607,9 @@ static void mlxsw_emad_transmit_retry(struct mlxsw_core *mlxsw_core,
 		err = mlxsw_emad_transmit(trans->core, trans);
 		if (err == 0)
 			return;
+
+		if (!atomic_dec_and_test(&trans->active))
+			return;
 	} else {
 		err = -EIO;
 	}
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 26988ad7ec97..8867d4ac871c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -1512,7 +1512,6 @@ static void ionic_txrx_deinit(struct ionic_lif *lif)
 	if (lif->rxqcqs) {
 		for (i = 0; i < lif->nxqs; i++) {
 			ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq);
-			ionic_rx_flush(&lif->rxqcqs[i].qcq->cq);
 			ionic_rx_empty(&lif->rxqcqs[i].qcq->q);
 		}
 	}
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index def65fee27b5..39e85870c15e 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -253,19 +253,6 @@ static bool ionic_rx_service(struct ionic_cq *cq, struct ionic_cq_info *cq_info)
 	return true;
 }
 
-void ionic_rx_flush(struct ionic_cq *cq)
-{
-	struct ionic_dev *idev = &cq->lif->ionic->idev;
-	u32 work_done;
-
-	work_done = ionic_cq_service(cq, cq->num_descs,
-				     ionic_rx_service, NULL, NULL);
-
-	if (work_done)
-		ionic_intr_credits(idev->intr_ctrl, cq->bound_intr->index,
-				   work_done, IONIC_INTR_CRED_RESET_COALESCE);
-}
-
 static struct page *ionic_rx_page_alloc(struct ionic_queue *q,
 					dma_addr_t *dma_addr)
 {
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.h b/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
index a5883be0413f..7667b72232b8 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
@@ -4,7 +4,6 @@
 #ifndef _IONIC_TXRX_H_
 #define _IONIC_TXRX_H_
 
-void ionic_rx_flush(struct ionic_cq *cq);
 void ionic_tx_flush(struct ionic_cq *cq);
 
 void ionic_rx_fill(struct ionic_queue *q);
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index d6cfd51613ed..3a44dad87602 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -273,63 +273,69 @@ static inline struct net_device **get_dev_p(struct pvc_device *pvc,
 
 static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
 {
-	u16 head_len;
 	struct sk_buff *skb = *skb_p;
 
-	switch (skb->protocol) {
-	case cpu_to_be16(NLPID_CCITT_ANSI_LMI):
-		head_len = 4;
-		skb_push(skb, head_len);
-		skb->data[3] = NLPID_CCITT_ANSI_LMI;
-		break;
-
-	case cpu_to_be16(NLPID_CISCO_LMI):
-		head_len = 4;
-		skb_push(skb, head_len);
-		skb->data[3] = NLPID_CISCO_LMI;
-		break;
-
-	case cpu_to_be16(ETH_P_IP):
-		head_len = 4;
-		skb_push(skb, head_len);
-		skb->data[3] = NLPID_IP;
-		break;
-
-	case cpu_to_be16(ETH_P_IPV6):
-		head_len = 4;
-		skb_push(skb, head_len);
-		skb->data[3] = NLPID_IPV6;
-		break;
-
-	case cpu_to_be16(ETH_P_802_3):
-		head_len = 10;
-		if (skb_headroom(skb) < head_len) {
-			struct sk_buff *skb2 = skb_realloc_headroom(skb,
-								    head_len);
+	if (!skb->dev) { /* Control packets */
+		switch (dlci) {
+		case LMI_CCITT_ANSI_DLCI:
+			skb_push(skb, 4);
+			skb->data[3] = NLPID_CCITT_ANSI_LMI;
+			break;
+
+		case LMI_CISCO_DLCI:
+			skb_push(skb, 4);
+			skb->data[3] = NLPID_CISCO_LMI;
+			break;
+
+		default:
+			return -EINVAL;
+		}
+
+	} else if (skb->dev->type == ARPHRD_DLCI) {
+		switch (skb->protocol) {
+		case htons(ETH_P_IP):
+			skb_push(skb, 4);
+			skb->data[3] = NLPID_IP;
+			break;
+
+		case htons(ETH_P_IPV6):
+			skb_push(skb, 4);
+			skb->data[3] = NLPID_IPV6;
+			break;
+
+		default:
+			skb_push(skb, 10);
+			skb->data[3] = FR_PAD;
+			skb->data[4] = NLPID_SNAP;
+			/* OUI 00-00-00 indicates an Ethertype follows */
+			skb->data[5] = 0x00;
+			skb->data[6] = 0x00;
+			skb->data[7] = 0x00;
+			/* This should be an Ethertype: */
+			*(__be16 *)(skb->data + 8) = skb->protocol;
+		}
+
+	} else if (skb->dev->type == ARPHRD_ETHER) {
+		if (skb_headroom(skb) < 10) {
+			struct sk_buff *skb2 = skb_realloc_headroom(skb, 10);
 			if (!skb2)
 				return -ENOBUFS;
 			dev_kfree_skb(skb);
 			skb = *skb_p = skb2;
 		}
-		skb_push(skb, head_len);
+		skb_push(skb, 10);
 		skb->data[3] = FR_PAD;
 		skb->data[4] = NLPID_SNAP;
-		skb->data[5] = FR_PAD;
+		/* OUI 00-80-C2 stands for the 802.1 organization */
+		skb->data[5] = 0x00;
 		skb->data[6] = 0x80;
 		skb->data[7] = 0xC2;
+		/* PID 00-07 stands for Ethernet frames without FCS */
 		skb->data[8] = 0x00;
-		skb->data[9] = 0x07; /* bridged Ethernet frame w/out FCS */
-		break;
+		skb->data[9] = 0x07;
 
-	default:
-		head_len = 10;
-		skb_push(skb, head_len);
-		skb->data[3] = FR_PAD;
-		skb->data[4] = NLPID_SNAP;
-		skb->data[5] = FR_PAD;
-		skb->data[6] = FR_PAD;
-		skb->data[7] = FR_PAD;
-		*(__be16*)(skb->data + 8) = skb->protocol;
+	} else {
+		return -EINVAL;
 	}
 
 	dlci_to_q922(skb->data, dlci);
@@ -425,8 +431,8 @@ static netdev_tx_t pvc_xmit(struct sk_buff *skb, struct net_device *dev)
 				skb_put(skb, pad);
 				memset(skb->data + len, 0, pad);
 			}
-			skb->protocol = cpu_to_be16(ETH_P_802_3);
 		}
+		skb->dev = dev;
 		if (!fr_hard_header(&skb, pvc->dlci)) {
 			dev->stats.tx_bytes += skb->len;
 			dev->stats.tx_packets++;
@@ -494,10 +500,8 @@ static void fr_lmi_send(struct net_device *dev, int fullrep)
 	memset(skb->data, 0, len);
 	skb_reserve(skb, 4);
 	if (lmi == LMI_CISCO) {
-		skb->protocol = cpu_to_be16(NLPID_CISCO_LMI);
 		fr_hard_header(&skb, LMI_CISCO_DLCI);
 	} else {
-		skb->protocol = cpu_to_be16(NLPID_CCITT_ANSI_LMI);
 		fr_hard_header(&skb, LMI_CCITT_ANSI_DLCI);
 	}
 	data = skb_tail_pointer(skb);
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 215ade6faf32..a00498338b1c 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -949,6 +949,7 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 	u8 preamble = 0;
 	u8 group_id;
 	u32 info1, info2, info3;
+	u32 stbc, nsts_su;
 
 	info1 = __le32_to_cpu(rxd->ppdu_start.info1);
 	info2 = __le32_to_cpu(rxd->ppdu_start.info2);
@@ -993,11 +994,16 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 		 */
 		bw = info2 & 3;
 		sgi = info3 & 1;
+		stbc = (info2 >> 3) & 1;
 		group_id = (info2 >> 4) & 0x3F;
 
 		if (GROUP_ID_IS_SU_MIMO(group_id)) {
 			mcs = (info3 >> 4) & 0x0F;
-			nss = ((info2 >> 10) & 0x07) + 1;
+			nsts_su = ((info2 >> 10) & 0x07);
+			if (stbc)
+				nss = (nsts_su >> 2) + 1;
+			else
+				nss = (nsts_su + 1);
 		} else {
 			/* Hardware doesn't decode VHT-SIG-B into Rx descriptor
 			 * so it's impossible to decode MCS. Also since
@@ -3583,12 +3589,14 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar,
 	}
 
 	if (ar->htt.disable_tx_comp) {
-		arsta->tx_retries += peer_stats->retry_pkts;
 		arsta->tx_failed += peer_stats->failed_pkts;
-		ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx retries %d tx failed %d\n",
-			   arsta->tx_retries, arsta->tx_failed);
+		ath10k_dbg(ar, ATH10K_DBG_HTT, "tx failed %d\n",
+			   arsta->tx_failed);
 	}
 
+	arsta->tx_retries += peer_stats->retry_pkts;
+	ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx retries %d", arsta->tx_retries);
+
 	if (ath10k_debug_is_extd_tx_stats_enabled(ar))
 		ath10k_accumulate_per_peer_tx_stats(ar, arsta, peer_stats,
 						    rate_idx);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 2177e9d92bdf..03c7edf05a1d 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -8542,12 +8542,13 @@ static void ath10k_sta_statistics(struct ieee80211_hw *hw,
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
 
 	if (ar->htt.disable_tx_comp) {
-		sinfo->tx_retries = arsta->tx_retries;
-		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
 		sinfo->tx_failed = arsta->tx_failed;
 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
 	}
 
+	sinfo->tx_retries = arsta->tx_retries;
+	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_RETRIES);
+
 	ath10k_mac_sta_get_peer_stats_info(ar, sta, sinfo);
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 63f882c690bf..0841e69b10b1 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -557,6 +557,10 @@ static int ath10k_sdio_mbox_rx_alloc(struct ath10k *ar,
 				    le16_to_cpu(htc_hdr->len),
 				    ATH10K_HTC_MBOX_MAX_PAYLOAD_LENGTH);
 			ret = -ENOMEM;
+
+			queue_work(ar->workqueue, &ar->restart_work);
+			ath10k_warn(ar, "exceeds length, start recovery\n");
+
 			goto err;
 		}
 
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 791d971784ce..055c3bb61e4c 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1421,7 +1421,7 @@ struct htt_ppdu_stats_info *ath11k_dp_htt_get_ppdu_desc(struct ath11k *ar,
 	}
 	spin_unlock_bh(&ar->data_lock);
 
-	ppdu_info = kzalloc(sizeof(*ppdu_info), GFP_KERNEL);
+	ppdu_info = kzalloc(sizeof(*ppdu_info), GFP_ATOMIC);
 	if (!ppdu_info)
 		return NULL;
 
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 1af76775b1a8..99cff8fb3977 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -514,6 +514,8 @@ void ath11k_dp_tx_completion_handler(struct ath11k_base *ab, int ring_id)
 	u32 msdu_id;
 	u8 mac_id;
 
+	spin_lock_bh(&status_ring->lock);
+
 	ath11k_hal_srng_access_begin(ab, status_ring);
 
 	while ((ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_head) !=
@@ -533,6 +535,8 @@ void ath11k_dp_tx_completion_handler(struct ath11k_base *ab, int ring_id)
 
 	ath11k_hal_srng_access_end(ab, status_ring);
 
+	spin_unlock_bh(&status_ring->lock);
+
 	while (ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_tail) != tx_ring->tx_status_head) {
 		struct hal_wbm_release_ring *tx_status;
 		u32 desc_id;
diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index 7c9dc91cc48a..c79a7c7eb56e 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -206,7 +206,7 @@ int ath11k_regd_update(struct ath11k *ar, bool init)
 	ab = ar->ab;
 	pdev_id = ar->pdev_idx;
 
-	spin_lock(&ab->base_lock);
+	spin_lock_bh(&ab->base_lock);
 
 	if (init) {
 		/* Apply the regd received during init through
@@ -227,7 +227,7 @@ int ath11k_regd_update(struct ath11k *ar, bool init)
 
 	if (!regd) {
 		ret = -EINVAL;
-		spin_unlock(&ab->base_lock);
+		spin_unlock_bh(&ab->base_lock);
 		goto err;
 	}
 
@@ -238,7 +238,7 @@ int ath11k_regd_update(struct ath11k *ar, bool init)
 	if (regd_copy)
 		ath11k_copy_regd(regd, regd_copy);
 
-	spin_unlock(&ab->base_lock);
+	spin_unlock_bh(&ab->base_lock);
 
 	if (!regd_copy) {
 		ret = -ENOMEM;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
index a5cced2c89ac..921b94c4f5f9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
@@ -304,10 +304,12 @@ void brcmf_fweh_detach(struct brcmf_pub *drvr)
 {
 	struct brcmf_fweh_info *fweh = &drvr->fweh;
 
-	/* cancel the worker */
-	cancel_work_sync(&fweh->event_work);
-	WARN_ON(!list_empty(&fweh->event_q));
-	memset(fweh->evt_handler, 0, sizeof(fweh->evt_handler));
+	/* cancel the worker if initialized */
+	if (fweh->event_work.func) {
+		cancel_work_sync(&fweh->event_work);
+		WARN_ON(!list_empty(&fweh->event_q));
+		memset(fweh->evt_handler, 0, sizeof(fweh->evt_handler));
+	}
 }
 
 /**
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 3c07d1bbe1c6..ac3ee93a2378 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4278,6 +4278,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
 			brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_MESBUSYCTRL,
 					   CY_43012_MESBUSYCTRL, &err);
 			break;
+		case SDIO_DEVICE_ID_BROADCOM_4329:
 		case SDIO_DEVICE_ID_BROADCOM_4339:
 			brcmf_dbg(INFO, "set F2 watermark to 0x%x*4 bytes for 4339\n",
 				  CY_4339_F2_WATERMARK);
diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index ae477f7756af..8ee24e351bdc 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -140,6 +140,20 @@ struct xenvif_queue { /* Per-queue data for xenvif */
 	char name[QUEUE_NAME_SIZE]; /* DEVNAME-qN */
 	struct xenvif *vif; /* Parent VIF */
 
+	/*
+	 * TX/RX common EOI handling.
+	 * When feature-split-event-channels = 0, interrupt handler sets
+	 * NETBK_COMMON_EOI, otherwise NETBK_RX_EOI and NETBK_TX_EOI are set
+	 * by the RX and TX interrupt handlers.
+	 * RX and TX handler threads will issue an EOI when either
+	 * NETBK_COMMON_EOI or their specific bits (NETBK_RX_EOI or
+	 * NETBK_TX_EOI) are set and they will reset those bits.
+	 */
+	atomic_t eoi_pending;
+#define NETBK_RX_EOI		0x01
+#define NETBK_TX_EOI		0x02
+#define NETBK_COMMON_EOI	0x04
+
 	/* Use NAPI for guest TX */
 	struct napi_struct napi;
 	/* When feature-split-event-channels = 0, tx_irq = rx_irq. */
@@ -378,6 +392,7 @@ int xenvif_dealloc_kthread(void *data);
 
 irqreturn_t xenvif_ctrl_irq_fn(int irq, void *data);
 
+bool xenvif_have_rx_work(struct xenvif_queue *queue, bool test_kthread);
 void xenvif_rx_action(struct xenvif_queue *queue);
 void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb);
 
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 8af497285691..acb786d8b1d8 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -77,12 +77,28 @@ int xenvif_schedulable(struct xenvif *vif)
 		!vif->disabled;
 }
 
+static bool xenvif_handle_tx_interrupt(struct xenvif_queue *queue)
+{
+	bool rc;
+
+	rc = RING_HAS_UNCONSUMED_REQUESTS(&queue->tx);
+	if (rc)
+		napi_schedule(&queue->napi);
+	return rc;
+}
+
 static irqreturn_t xenvif_tx_interrupt(int irq, void *dev_id)
 {
 	struct xenvif_queue *queue = dev_id;
+	int old;
 
-	if (RING_HAS_UNCONSUMED_REQUESTS(&queue->tx))
-		napi_schedule(&queue->napi);
+	old = atomic_fetch_or(NETBK_TX_EOI, &queue->eoi_pending);
+	WARN(old & NETBK_TX_EOI, "Interrupt while EOI pending\n");
+
+	if (!xenvif_handle_tx_interrupt(queue)) {
+		atomic_andnot(NETBK_TX_EOI, &queue->eoi_pending);
+		xen_irq_lateeoi(irq, XEN_EOI_FLAG_SPURIOUS);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -116,19 +132,46 @@ static int xenvif_poll(struct napi_struct *napi, int budget)
 	return work_done;
 }
 
+static bool xenvif_handle_rx_interrupt(struct xenvif_queue *queue)
+{
+	bool rc;
+
+	rc = xenvif_have_rx_work(queue, false);
+	if (rc)
+		xenvif_kick_thread(queue);
+	return rc;
+}
+
 static irqreturn_t xenvif_rx_interrupt(int irq, void *dev_id)
 {
 	struct xenvif_queue *queue = dev_id;
+	int old;
 
-	xenvif_kick_thread(queue);
+	old = atomic_fetch_or(NETBK_RX_EOI, &queue->eoi_pending);
+	WARN(old & NETBK_RX_EOI, "Interrupt while EOI pending\n");
+
+	if (!xenvif_handle_rx_interrupt(queue)) {
+		atomic_andnot(NETBK_RX_EOI, &queue->eoi_pending);
+		xen_irq_lateeoi(irq, XEN_EOI_FLAG_SPURIOUS);
+	}
 
 	return IRQ_HANDLED;
 }
 
 irqreturn_t xenvif_interrupt(int irq, void *dev_id)
 {
-	xenvif_tx_interrupt(irq, dev_id);
-	xenvif_rx_interrupt(irq, dev_id);
+	struct xenvif_queue *queue = dev_id;
+	int old;
+
+	old = atomic_fetch_or(NETBK_COMMON_EOI, &queue->eoi_pending);
+	WARN(old, "Interrupt while EOI pending\n");
+
+	/* Use bitwise or as we need to call both functions. */
+	if ((!xenvif_handle_tx_interrupt(queue) |
+	     !xenvif_handle_rx_interrupt(queue))) {
+		atomic_andnot(NETBK_COMMON_EOI, &queue->eoi_pending);
+		xen_irq_lateeoi(irq, XEN_EOI_FLAG_SPURIOUS);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -605,7 +648,7 @@ int xenvif_connect_ctrl(struct xenvif *vif, grant_ref_t ring_ref,
 	if (req_prod - rsp_prod > RING_SIZE(&vif->ctrl))
 		goto err_unmap;
 
-	err = bind_interdomain_evtchn_to_irq(vif->domid, evtchn);
+	err = bind_interdomain_evtchn_to_irq_lateeoi(vif->domid, evtchn);
 	if (err < 0)
 		goto err_unmap;
 
@@ -709,7 +752,7 @@ int xenvif_connect_data(struct xenvif_queue *queue,
 
 	if (tx_evtchn == rx_evtchn) {
 		/* feature-split-event-channels == 0 */
-		err = bind_interdomain_evtchn_to_irqhandler(
+		err = bind_interdomain_evtchn_to_irqhandler_lateeoi(
 			queue->vif->domid, tx_evtchn, xenvif_interrupt, 0,
 			queue->name, queue);
 		if (err < 0)
@@ -720,7 +763,7 @@ int xenvif_connect_data(struct xenvif_queue *queue,
 		/* feature-split-event-channels == 1 */
 		snprintf(queue->tx_irq_name, sizeof(queue->tx_irq_name),
 			 "%s-tx", queue->name);
-		err = bind_interdomain_evtchn_to_irqhandler(
+		err = bind_interdomain_evtchn_to_irqhandler_lateeoi(
 			queue->vif->domid, tx_evtchn, xenvif_tx_interrupt, 0,
 			queue->tx_irq_name, queue);
 		if (err < 0)
@@ -730,7 +773,7 @@ int xenvif_connect_data(struct xenvif_queue *queue,
 
 		snprintf(queue->rx_irq_name, sizeof(queue->rx_irq_name),
 			 "%s-rx", queue->name);
-		err = bind_interdomain_evtchn_to_irqhandler(
+		err = bind_interdomain_evtchn_to_irqhandler_lateeoi(
 			queue->vif->domid, rx_evtchn, xenvif_rx_interrupt, 0,
 			queue->rx_irq_name, queue);
 		if (err < 0)
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 6dfca7265644..bc3421d14576 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -169,6 +169,10 @@ void xenvif_napi_schedule_or_enable_events(struct xenvif_queue *queue)
 
 	if (more_to_do)
 		napi_schedule(&queue->napi);
+	else if (atomic_fetch_andnot(NETBK_TX_EOI | NETBK_COMMON_EOI,
+				     &queue->eoi_pending) &
+		 (NETBK_TX_EOI | NETBK_COMMON_EOI))
+		xen_irq_lateeoi(queue->tx_irq, 0);
 }
 
 static void tx_add_credit(struct xenvif_queue *queue)
@@ -1643,9 +1647,14 @@ static bool xenvif_ctrl_work_todo(struct xenvif *vif)
 irqreturn_t xenvif_ctrl_irq_fn(int irq, void *data)
 {
 	struct xenvif *vif = data;
+	unsigned int eoi_flag = XEN_EOI_FLAG_SPURIOUS;
 
-	while (xenvif_ctrl_work_todo(vif))
+	while (xenvif_ctrl_work_todo(vif)) {
 		xenvif_ctrl_action(vif);
+		eoi_flag = 0;
+	}
+
+	xen_irq_lateeoi(irq, eoi_flag);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c
index ac034f69a170..b8febe1d1bfd 100644
--- a/drivers/net/xen-netback/rx.c
+++ b/drivers/net/xen-netback/rx.c
@@ -503,13 +503,13 @@ static bool xenvif_rx_queue_ready(struct xenvif_queue *queue)
 	return queue->stalled && prod - cons >= 1;
 }
 
-static bool xenvif_have_rx_work(struct xenvif_queue *queue)
+bool xenvif_have_rx_work(struct xenvif_queue *queue, bool test_kthread)
 {
 	return xenvif_rx_ring_slots_available(queue) ||
 		(queue->vif->stall_timeout &&
 		 (xenvif_rx_queue_stalled(queue) ||
 		  xenvif_rx_queue_ready(queue))) ||
-		kthread_should_stop() ||
+		(test_kthread && kthread_should_stop()) ||
 		queue->vif->disabled;
 }
 
@@ -540,15 +540,20 @@ static void xenvif_wait_for_rx_work(struct xenvif_queue *queue)
 {
 	DEFINE_WAIT(wait);
 
-	if (xenvif_have_rx_work(queue))
+	if (xenvif_have_rx_work(queue, true))
 		return;
 
 	for (;;) {
 		long ret;
 
 		prepare_to_wait(&queue->wq, &wait, TASK_INTERRUPTIBLE);
-		if (xenvif_have_rx_work(queue))
+		if (xenvif_have_rx_work(queue, true))
 			break;
+		if (atomic_fetch_andnot(NETBK_RX_EOI | NETBK_COMMON_EOI,
+					&queue->eoi_pending) &
+		    (NETBK_RX_EOI | NETBK_COMMON_EOI))
+			xen_irq_lateeoi(queue->rx_irq, 0);
+
 		ret = schedule_timeout(xenvif_rx_queue_timeout(queue));
 		if (!ret)
 			break;
diff --git a/drivers/nfc/s3fwrn5/Kconfig b/drivers/nfc/s3fwrn5/Kconfig
index af9d18690afe..3f8b6da58280 100644
--- a/drivers/nfc/s3fwrn5/Kconfig
+++ b/drivers/nfc/s3fwrn5/Kconfig
@@ -2,6 +2,7 @@
 config NFC_S3FWRN5
 	tristate
 	select CRYPTO
+	select CRYPTO_HASH
 	help
 	  Core driver for Samsung S3FWRN5 NFC chip. Contains core utilities
 	  of chip. It's intended to be used by PHYs to avoid duplicating lots
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 9e378d0a0c01..116902b1b2c3 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1926,7 +1926,6 @@ static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id,
 		complete(&queue->cm_done);
 		return 0;
 	case RDMA_CM_EVENT_REJECTED:
-		nvme_rdma_destroy_queue_ib(queue);
 		cm_error = nvme_rdma_conn_rejected(queue, ev);
 		break;
 	case RDMA_CM_EVENT_ROUTE_ERROR:
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 3aac77a295ba..82336bbaf8dc 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -302,6 +302,9 @@ static void qcom_pcie_deinit_2_1_0(struct qcom_pcie *pcie)
 	reset_control_assert(res->por_reset);
 	reset_control_assert(res->ext_reset);
 	reset_control_assert(res->phy_reset);
+
+	writel(1, pcie->parf + PCIE20_PARF_PHY_CTRL);
+
 	regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies);
 }
 
@@ -314,6 +317,16 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
 	u32 val;
 	int ret;
 
+	/* reset the PCIe interface as uboot can leave it undefined state */
+	reset_control_assert(res->pci_reset);
+	reset_control_assert(res->axi_reset);
+	reset_control_assert(res->ahb_reset);
+	reset_control_assert(res->por_reset);
+	reset_control_assert(res->ext_reset);
+	reset_control_assert(res->phy_reset);
+
+	writel(1, pcie->parf + PCIE20_PARF_PHY_CTRL);
+
 	ret = regulator_bulk_enable(ARRAY_SIZE(res->supplies), res->supplies);
 	if (ret < 0) {
 		dev_err(dev, "cannot enable regulators\n");
diff --git a/drivers/pci/ecam.c b/drivers/pci/ecam.c
index 8f065a42fc1a..b54d32a31669 100644
--- a/drivers/pci/ecam.c
+++ b/drivers/pci/ecam.c
@@ -168,4 +168,14 @@ const struct pci_ecam_ops pci_32b_ops = {
 		.write		= pci_generic_config_write32,
 	}
 };
+
+/* ECAM ops for 32-bit read only (non-compliant) */
+const struct pci_ecam_ops pci_32b_read_ops = {
+	.bus_shift	= 20,
+	.pci_ops	= {
+		.map_bus	= pci_ecam_map_bus,
+		.read		= pci_generic_config_read32,
+		.write		= pci_generic_config_write,
+	}
+};
 #endif
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index d5869a03f748..d9aa551f8423 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -944,6 +944,16 @@ static bool acpi_pci_bridge_d3(struct pci_dev *dev)
 	if (!dev->is_hotplug_bridge)
 		return false;
 
+	/* Assume D3 support if the bridge is power-manageable by ACPI. */
+	adev = ACPI_COMPANION(&dev->dev);
+	if (!adev && !pci_dev_is_added(dev)) {
+		adev = acpi_pci_find_companion(&dev->dev);
+		ACPI_COMPANION_SET(&dev->dev, adev);
+	}
+
+	if (adev && acpi_device_power_manageable(adev))
+		return true;
+
 	/*
 	 * Look for a special _DSD property for the root port and if it
 	 * is set we know the hierarchy behind it supports D3 just fine.
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index a123f6e21f08..08b9d025a3e8 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1772,8 +1772,6 @@ static int bq27xxx_battery_status(struct bq27xxx_device_info *di,
 			status = POWER_SUPPLY_STATUS_FULL;
 		else if (di->cache.flags & BQ27000_FLAG_CHGS)
 			status = POWER_SUPPLY_STATUS_CHARGING;
-		else if (power_supply_am_i_supplied(di->bat) > 0)
-			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			status = POWER_SUPPLY_STATUS_DISCHARGING;
 	} else if (di->opts & BQ27Z561_O_BITS) {
@@ -1792,6 +1790,10 @@ static int bq27xxx_battery_status(struct bq27xxx_device_info *di,
 			status = POWER_SUPPLY_STATUS_CHARGING;
 	}
 
+	if ((status == POWER_SUPPLY_STATUS_DISCHARGING) &&
+	    (power_supply_am_i_supplied(di->bat) > 0))
+		status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+
 	val->intval = status;
 
 	return 0;
diff --git a/drivers/power/supply/test_power.c b/drivers/power/supply/test_power.c
index 04acd76bbaa1..4895ee5e63a9 100644
--- a/drivers/power/supply/test_power.c
+++ b/drivers/power/supply/test_power.c
@@ -353,6 +353,7 @@ static int param_set_ac_online(const char *key, const struct kernel_param *kp)
 static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
 {
 	strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
@@ -366,6 +367,7 @@ static int param_set_usb_online(const char *key, const struct kernel_param *kp)
 static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
 {
 	strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
@@ -380,6 +382,7 @@ static int param_set_battery_status(const char *key,
 static int param_get_battery_status(char *buffer, const struct kernel_param *kp)
 {
 	strcpy(buffer, map_get_key(map_status, battery_status, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
@@ -394,6 +397,7 @@ static int param_set_battery_health(const char *key,
 static int param_get_battery_health(char *buffer, const struct kernel_param *kp)
 {
 	strcpy(buffer, map_get_key(map_health, battery_health, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
@@ -409,6 +413,7 @@ static int param_get_battery_present(char *buffer,
 					const struct kernel_param *kp)
 {
 	strcpy(buffer, map_get_key(map_present, battery_present, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
@@ -426,6 +431,7 @@ static int param_get_battery_technology(char *buffer,
 {
 	strcpy(buffer,
 		map_get_key(map_technology, battery_technology, "unknown"));
+	strcat(buffer, "\n");
 	return strlen(buffer);
 }
 
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 2e3b3e22e1d0..7ca823f6aa63 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -94,7 +94,7 @@ static ssize_t rproc_coredump_write(struct file *filp,
 		goto out;
 	}
 
-	if (!strncmp(buf, "disable", count)) {
+	if (!strncmp(buf, "disabled", count)) {
 		rproc->dump_conf = RPROC_COREDUMP_DISABLED;
 	} else if (!strncmp(buf, "inline", count)) {
 		rproc->dump_conf = RPROC_COREDUMP_INLINE;
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index f40312b16da0..b5570c83a28c 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -970,7 +970,7 @@ static int qcom_glink_rx_open_ack(struct qcom_glink *glink, unsigned int lcid)
 		return -EINVAL;
 	}
 
-	complete(&channel->open_ack);
+	complete_all(&channel->open_ack);
 
 	return 0;
 }
@@ -1178,7 +1178,7 @@ static int qcom_glink_announce_create(struct rpmsg_device *rpdev)
 	__be32 *val = defaults;
 	int size;
 
-	if (glink->intentless)
+	if (glink->intentless || !completion_done(&channel->open_ack))
 		return 0;
 
 	prop = of_find_property(np, "qcom,intents", NULL);
@@ -1413,7 +1413,7 @@ static int qcom_glink_rx_open(struct qcom_glink *glink, unsigned int rcid,
 	channel->rcid = ret;
 	spin_unlock_irqrestore(&glink->idr_lock, flags);
 
-	complete(&channel->open_req);
+	complete_all(&channel->open_req);
 
 	if (create_device) {
 		rpdev = kzalloc(sizeof(*rpdev), GFP_KERNEL);
diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index fe010151ec8f..08c93d492494 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -407,16 +407,26 @@ static int rx8010_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 	}
 }
 
-static struct rtc_class_ops rx8010_rtc_ops = {
+static const struct rtc_class_ops rx8010_rtc_ops_default = {
 	.read_time = rx8010_get_time,
 	.set_time = rx8010_set_time,
 	.ioctl = rx8010_ioctl,
 };
 
+static const struct rtc_class_ops rx8010_rtc_ops_alarm = {
+	.read_time = rx8010_get_time,
+	.set_time = rx8010_set_time,
+	.ioctl = rx8010_ioctl,
+	.read_alarm = rx8010_read_alarm,
+	.set_alarm = rx8010_set_alarm,
+	.alarm_irq_enable = rx8010_alarm_irq_enable,
+};
+
 static int rx8010_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
+	const struct rtc_class_ops *rtc_ops;
 	struct rx8010_data *rx8010;
 	int err = 0;
 
@@ -447,16 +457,16 @@ static int rx8010_probe(struct i2c_client *client,
 
 		if (err) {
 			dev_err(&client->dev, "unable to request IRQ\n");
-			client->irq = 0;
-		} else {
-			rx8010_rtc_ops.read_alarm = rx8010_read_alarm;
-			rx8010_rtc_ops.set_alarm = rx8010_set_alarm;
-			rx8010_rtc_ops.alarm_irq_enable = rx8010_alarm_irq_enable;
+			return err;
 		}
+
+		rtc_ops = &rx8010_rtc_ops_alarm;
+	} else {
+		rtc_ops = &rx8010_rtc_ops_default;
 	}
 
 	rx8010->rtc = devm_rtc_device_register(&client->dev, client->name,
-		&rx8010_rtc_ops, THIS_MODULE);
+					       rtc_ops, THIS_MODULE);
 
 	if (IS_ERR(rx8010->rtc)) {
 		dev_err(&client->dev, "unable to register the class device\n");
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 1ea046324e8f..c4afca0d773c 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -50,6 +50,7 @@ static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
 #define AP_RESPONSE_NO_FIRST_PART	0x13
 #define AP_RESPONSE_MESSAGE_TOO_BIG	0x15
 #define AP_RESPONSE_REQ_FAC_NOT_INST	0x16
+#define AP_RESPONSE_INVALID_DOMAIN	0x42
 
 /*
  * Known device types
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 688ebebbf98c..99f73bbb1c75 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -237,6 +237,9 @@ static enum ap_sm_wait ap_sm_write(struct ap_queue *aq)
 	case AP_RESPONSE_RESET_IN_PROGRESS:
 		aq->sm_state = AP_SM_STATE_RESET_WAIT;
 		return AP_SM_WAIT_TIMEOUT;
+	case AP_RESPONSE_INVALID_DOMAIN:
+		AP_DBF(DBF_WARN, "AP_RESPONSE_INVALID_DOMAIN on NQAP\n");
+		fallthrough;
 	case AP_RESPONSE_MESSAGE_TOO_BIG:
 	case AP_RESPONSE_REQ_FAC_NOT_INST:
 		list_del_init(&ap_msg->list);
@@ -278,11 +281,6 @@ static enum ap_sm_wait ap_sm_reset(struct ap_queue *aq)
 		aq->sm_state = AP_SM_STATE_RESET_WAIT;
 		aq->interrupt = AP_INTR_DISABLED;
 		return AP_SM_WAIT_TIMEOUT;
-	case AP_RESPONSE_BUSY:
-		return AP_SM_WAIT_TIMEOUT;
-	case AP_RESPONSE_Q_NOT_AVAIL:
-	case AP_RESPONSE_DECONFIGURED:
-	case AP_RESPONSE_CHECKSTOPPED:
 	default:
 		aq->sm_state = AP_SM_STATE_BORKED;
 		return AP_SM_WAIT_NONE;
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
index 241dbb5f75bf..3225489a1c41 100644
--- a/drivers/s390/crypto/zcrypt_debug.h
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -21,6 +21,14 @@
 
 #define ZCRYPT_DBF(...)					\
 	debug_sprintf_event(zcrypt_dbf_info, ##__VA_ARGS__)
+#define ZCRYPT_DBF_ERR(...)					\
+	debug_sprintf_event(zcrypt_dbf_info, DBF_ERR, ##__VA_ARGS__)
+#define ZCRYPT_DBF_WARN(...)					\
+	debug_sprintf_event(zcrypt_dbf_info, DBF_WARN, ##__VA_ARGS__)
+#define ZCRYPT_DBF_INFO(...)					\
+	debug_sprintf_event(zcrypt_dbf_info, DBF_INFO, ##__VA_ARGS__)
+#define ZCRYPT_DBF_DBG(...)					\
+	debug_sprintf_event(zcrypt_dbf_info, DBF_DEBUG, ##__VA_ARGS__)
 
 extern debug_info_t *zcrypt_dbf_info;
 
diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h
index 54a04f8c38ef..39e626e3a379 100644
--- a/drivers/s390/crypto/zcrypt_error.h
+++ b/drivers/s390/crypto/zcrypt_error.h
@@ -52,7 +52,6 @@ struct error_hdr {
 #define REP82_ERROR_INVALID_COMMAND	    0x30
 #define REP82_ERROR_MALFORMED_MSG	    0x40
 #define REP82_ERROR_INVALID_SPECIAL_CMD	    0x41
-#define REP82_ERROR_INVALID_DOMAIN_PRECHECK 0x42
 #define REP82_ERROR_RESERVED_FIELDO	    0x50 /* old value	*/
 #define REP82_ERROR_WORD_ALIGNMENT	    0x60
 #define REP82_ERROR_MESSAGE_LENGTH	    0x80
@@ -67,7 +66,6 @@ struct error_hdr {
 #define REP82_ERROR_ZERO_BUFFER_LEN	    0xB0
 
 #define REP88_ERROR_MODULE_FAILURE	    0x10
-
 #define REP88_ERROR_MESSAGE_TYPE	    0x20
 #define REP88_ERROR_MESSAGE_MALFORMD	    0x22
 #define REP88_ERROR_MESSAGE_LENGTH	    0x23
@@ -85,78 +83,56 @@ static inline int convert_error(struct zcrypt_queue *zq,
 	int queue = AP_QID_QUEUE(zq->queue->qid);
 
 	switch (ehdr->reply_code) {
-	case REP82_ERROR_OPERAND_INVALID:
-	case REP82_ERROR_OPERAND_SIZE:
-	case REP82_ERROR_EVEN_MOD_IN_OPND:
-	case REP88_ERROR_MESSAGE_MALFORMD:
-	case REP82_ERROR_INVALID_DOMAIN_PRECHECK:
-	case REP82_ERROR_INVALID_DOMAIN_PENDING:
-	case REP82_ERROR_INVALID_SPECIAL_CMD:
-	case REP82_ERROR_FILTERED_BY_HYPERVISOR:
-	//   REP88_ERROR_INVALID_KEY		// '82' CEX2A
-	//   REP88_ERROR_OPERAND		// '84' CEX2A
-	//   REP88_ERROR_OPERAND_EVEN_MOD	// '85' CEX2A
-		/* Invalid input data. */
+	case REP82_ERROR_INVALID_MSG_LEN:	 /* 0x23 */
+	case REP82_ERROR_RESERVD_FIELD:		 /* 0x24 */
+	case REP82_ERROR_FORMAT_FIELD:		 /* 0x29 */
+	case REP82_ERROR_MALFORMED_MSG:		 /* 0x40 */
+	case REP82_ERROR_INVALID_SPECIAL_CMD:	 /* 0x41 */
+	case REP82_ERROR_MESSAGE_LENGTH:	 /* 0x80 */
+	case REP82_ERROR_OPERAND_INVALID:	 /* 0x82 */
+	case REP82_ERROR_OPERAND_SIZE:		 /* 0x84 */
+	case REP82_ERROR_EVEN_MOD_IN_OPND:	 /* 0x85 */
+	case REP82_ERROR_INVALID_DOMAIN_PENDING: /* 0x8A */
+	case REP82_ERROR_FILTERED_BY_HYPERVISOR: /* 0x8B */
+	case REP82_ERROR_PACKET_TRUNCATED:	 /* 0xA0 */
+	case REP88_ERROR_MESSAGE_MALFORMD:	 /* 0x22 */
+	case REP88_ERROR_KEY_TYPE:		 /* 0x34 */
+		/* RY indicates malformed request */
 		ZCRYPT_DBF(DBF_WARN,
-			   "device=%02x.%04x reply=0x%02x => rc=EINVAL\n",
+			   "dev=%02x.%04x RY=0x%02x => rc=EINVAL\n",
 			   card, queue, ehdr->reply_code);
 		return -EINVAL;
-	case REP82_ERROR_MESSAGE_TYPE:
-	//   REP88_ERROR_MESSAGE_TYPE		// '20' CEX2A
+	case REP82_ERROR_MACHINE_FAILURE:	 /* 0x10 */
+	case REP82_ERROR_MESSAGE_TYPE:		 /* 0x20 */
+	case REP82_ERROR_TRANSPORT_FAIL:	 /* 0x90 */
 		/*
-		 * To sent a message of the wrong type is a bug in the
-		 * device driver. Send error msg, disable the device
-		 * and then repeat the request.
+		 * Msg to wrong type or card/infrastructure failure.
+		 * Trigger rescan of the ap bus, trigger retry request.
 		 */
 		atomic_set(&zcrypt_rescan_req, 1);
-		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
-		       card, queue);
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
-			   card, queue, ehdr->reply_code);
-		return -EAGAIN;
-	case REP82_ERROR_TRANSPORT_FAIL:
-		/* Card or infrastructure failure, disable card */
-		atomic_set(&zcrypt_rescan_req, 1);
-		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
-		       card, queue);
 		/* For type 86 response show the apfs value (failure reason) */
-		if (ehdr->type == TYPE86_RSP_CODE) {
+		if (ehdr->reply_code == REP82_ERROR_TRANSPORT_FAIL &&
+		    ehdr->type == TYPE86_RSP_CODE) {
 			struct {
 				struct type86_hdr hdr;
 				struct type86_fmt2_ext fmt2;
 			} __packed * head = reply->msg;
 			unsigned int apfs = *((u32 *)head->fmt2.apfs);
 
-			ZCRYPT_DBF(DBF_ERR,
-				   "device=%02x.%04x reply=0x%02x apfs=0x%x => online=0 rc=EAGAIN\n",
-				   card, queue, apfs, ehdr->reply_code);
+			ZCRYPT_DBF(DBF_WARN,
+				   "dev=%02x.%04x RY=0x%02x apfs=0x%x => bus rescan, rc=EAGAIN\n",
+				   card, queue, ehdr->reply_code, apfs);
 		} else
-			ZCRYPT_DBF(DBF_ERR,
-				   "device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
+			ZCRYPT_DBF(DBF_WARN,
+				   "dev=%02x.%04x RY=0x%02x => bus rescan, rc=EAGAIN\n",
 				   card, queue, ehdr->reply_code);
 		return -EAGAIN;
-	case REP82_ERROR_MACHINE_FAILURE:
-	//   REP88_ERROR_MODULE_FAILURE		// '10' CEX2A
-		/* If a card fails disable it and repeat the request. */
-		atomic_set(&zcrypt_rescan_req, 1);
-		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
-		       card, queue);
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
-			   card, queue, ehdr->reply_code);
-		return -EAGAIN;
 	default:
-		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
-		       card, queue);
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
+		/* Assume request is valid and a retry will be worth it */
+		ZCRYPT_DBF(DBF_WARN,
+			   "dev=%02x.%04x RY=0x%02x => rc=EAGAIN\n",
 			   card, queue, ehdr->reply_code);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		return -EAGAIN;
 	}
 }
 
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c
index 7aedc338b445..88916addd513 100644
--- a/drivers/s390/crypto/zcrypt_msgtype50.c
+++ b/drivers/s390/crypto/zcrypt_msgtype50.c
@@ -356,15 +356,15 @@ static int convert_type80(struct zcrypt_queue *zq,
 	if (t80h->len < sizeof(*t80h) + outputdatalength) {
 		/* The result is too short, the CEXxA card may not do that.. */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x code=0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x code=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   t80h->code);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       t80h->code);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x code=0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       t80h->code);
+		return -EAGAIN;
 	}
 	if (zq->zcard->user_space_type == ZCRYPT_CEX2A)
 		BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
@@ -376,10 +376,10 @@ static int convert_type80(struct zcrypt_queue *zq,
 	return 0;
 }
 
-static int convert_response(struct zcrypt_queue *zq,
-			    struct ap_message *reply,
-			    char __user *outputdata,
-			    unsigned int outputdatalength)
+static int convert_response_cex2a(struct zcrypt_queue *zq,
+				  struct ap_message *reply,
+				  char __user *outputdata,
+				  unsigned int outputdatalength)
 {
 	/* Response type byte is the second byte in the response. */
 	unsigned char rtype = ((unsigned char *) reply->msg)[1];
@@ -393,15 +393,15 @@ static int convert_response(struct zcrypt_queue *zq,
 				      outputdata, outputdatalength);
 	default: /* Unknown response type, this should NEVER EVER happen */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (unsigned int) rtype);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) rtype);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) rtype);
+		return -EAGAIN;
 	}
 }
 
@@ -476,8 +476,9 @@ static long zcrypt_cex2a_modexpo(struct zcrypt_queue *zq,
 	if (rc == 0) {
 		rc = ap_msg.rc;
 		if (rc == 0)
-			rc = convert_response(zq, &ap_msg, mex->outputdata,
-					      mex->outputdatalength);
+			rc = convert_response_cex2a(zq, &ap_msg,
+						    mex->outputdata,
+						    mex->outputdatalength);
 	} else
 		/* Signal pending. */
 		ap_cancel_message(zq->queue, &ap_msg);
@@ -520,8 +521,9 @@ static long zcrypt_cex2a_modexpo_crt(struct zcrypt_queue *zq,
 	if (rc == 0) {
 		rc = ap_msg.rc;
 		if (rc == 0)
-			rc = convert_response(zq, &ap_msg, crt->outputdata,
-					      crt->outputdatalength);
+			rc = convert_response_cex2a(zq, &ap_msg,
+						    crt->outputdata,
+						    crt->outputdatalength);
 	} else
 		/* Signal pending. */
 		ap_cancel_message(zq->queue, &ap_msg);
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
index d77991c74c25..21ea3b73c867 100644
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -650,23 +650,22 @@ static int convert_type86_ica(struct zcrypt_queue *zq,
 		    (service_rc == 8 && service_rs == 72) ||
 		    (service_rc == 8 && service_rs == 770) ||
 		    (service_rc == 12 && service_rs == 769)) {
-			ZCRYPT_DBF(DBF_DEBUG,
-				   "device=%02x.%04x rc/rs=%d/%d => rc=EINVAL\n",
-				   AP_QID_CARD(zq->queue->qid),
-				   AP_QID_QUEUE(zq->queue->qid),
-				   (int) service_rc, (int) service_rs);
+			ZCRYPT_DBF_WARN("dev=%02x.%04x rc/rs=%d/%d => rc=EINVAL\n",
+					AP_QID_CARD(zq->queue->qid),
+					AP_QID_QUEUE(zq->queue->qid),
+					(int) service_rc, (int) service_rs);
 			return -EINVAL;
 		}
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x rc/rs=%d/%d online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rc/rs=%d/%d => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (int) service_rc, (int) service_rs);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) service_rc, (int) service_rs);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x rc/rs=%d/%d => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) service_rc, (int) service_rs);
+		return -EAGAIN;
 	}
 	data = msg->text;
 	reply_len = msg->length - 2;
@@ -800,17 +799,18 @@ static int convert_response_ica(struct zcrypt_queue *zq,
 			return convert_type86_ica(zq, reply,
 						  outputdata, outputdatalength);
 		fallthrough;	/* wrong cprb version is an unknown response */
-	default: /* Unknown response type, this should NEVER EVER happen */
+	default:
+		/* Unknown response type, this should NEVER EVER happen */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (int) msg->hdr.type);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) msg->hdr.type);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) msg->hdr.type);
+		return -EAGAIN;
 	}
 }
 
@@ -836,15 +836,15 @@ static int convert_response_xcrb(struct zcrypt_queue *zq,
 	default: /* Unknown response type, this should NEVER EVER happen */
 		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (int) msg->hdr.type);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) msg->hdr.type);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) msg->hdr.type);
+		return -EAGAIN;
 	}
 }
 
@@ -865,15 +865,15 @@ static int convert_response_ep11_xcrb(struct zcrypt_queue *zq,
 		fallthrough;	/* wrong cprb version is an unknown resp */
 	default: /* Unknown response type, this should NEVER EVER happen */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (int) msg->hdr.type);
-		return -EAGAIN; /* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) msg->hdr.type);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) msg->hdr.type);
+		return -EAGAIN;
 	}
 }
 
@@ -895,15 +895,15 @@ static int convert_response_rng(struct zcrypt_queue *zq,
 		fallthrough;	/* wrong cprb version is an unknown response */
 	default: /* Unknown response type, this should NEVER EVER happen */
 		zq->online = 0;
-		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
+		pr_err("Crypto dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
 		       AP_QID_CARD(zq->queue->qid),
-		       AP_QID_QUEUE(zq->queue->qid));
-		ZCRYPT_DBF(DBF_ERR,
-			   "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n",
-			   AP_QID_CARD(zq->queue->qid),
-			   AP_QID_QUEUE(zq->queue->qid),
-			   (int) msg->hdr.type);
-		return -EAGAIN;	/* repeat the request on a different device. */
+		       AP_QID_QUEUE(zq->queue->qid),
+		       (int) msg->hdr.type);
+		ZCRYPT_DBF_ERR("dev=%02x.%04x unknown response type 0x%02x => online=0 rc=EAGAIN\n",
+			       AP_QID_CARD(zq->queue->qid),
+			       AP_QID_QUEUE(zq->queue->qid),
+			       (int) msg->hdr.type);
+		return -EAGAIN;
 	}
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 5d93ccc73153..5ab955007a07 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -157,6 +157,14 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
 			       vha->host_no);
 		}
 		break;
+	case 10:
+		if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+			ql_log(ql_log_info, vha, 0x70e9,
+			       "Issuing MPI firmware dump on host#%ld.\n",
+			       vha->host_no);
+			ha->isp_ops->mpi_fw_dump(vha, 0);
+		}
+		break;
 	}
 	return count;
 }
@@ -744,8 +752,6 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
 			qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
 			qla83xx_idc_unlock(vha, 0);
 			break;
-		} else if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
-			qla27xx_reset_mpi(vha);
 		} else {
 			/* Make sure FC side is not in reset */
 			WARN_ON_ONCE(qla2x00_wait_for_hba_online(vha) !=
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 0ced18f3104e..76711b34643a 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -938,6 +938,5 @@ extern void qla24xx_process_purex_list(struct purex_list *);
 
 /* nvme.c */
 void qla_nvme_unregister_remote_port(struct fc_port *fcport);
-void qla27xx_reset_mpi(scsi_qla_host_t *vha);
 void qla_handle_els_plogi_done(scsi_qla_host_t *vha, struct event_arg *ea);
 #endif /* _QLA_GBL_H */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 8d4b651e1442..91f2cfc12aaa 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3298,6 +3298,8 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 			    j, fwdt->dump_size);
 			dump_size += fwdt->dump_size;
 		}
+		/* Add space for spare MPI fw dump. */
+		dump_size += ha->fwdt[1].dump_size;
 	} else {
 		req_q_size = req->length * sizeof(request_t);
 		rsp_q_size = rsp->length * sizeof(response_t);
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 25e0a1684763..96db78c88200 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -767,7 +767,7 @@ qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 	ql_log(ql_log_warn, vha, 0x02f0,
 	       "MPI Heartbeat stop. MPI reset is%s needed. "
 	       "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
-	       mb[0] & BIT_8 ? "" : " not",
+	       mb[1] & BIT_8 ? "" : " not",
 	       mb[0], mb[1], mb[2], mb[3]);
 
 	if ((mb[1] & BIT_8) == 0)
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 2a88e7e79bd5..9028bcddc98c 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1229,14 +1229,15 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess)
 	case DSC_DELETE_PEND:
 		return;
 	case DSC_DELETED:
-		if (tgt && tgt->tgt_stop && (tgt->sess_count == 0))
-			wake_up_all(&tgt->waitQ);
-		if (sess->vha->fcport_count == 0)
-			wake_up_all(&sess->vha->fcport_waitQ);
-
 		if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
-			!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT])
+			!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
+			if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
+				wake_up_all(&tgt->waitQ);
+
+			if (sess->vha->fcport_count == 0)
+				wake_up_all(&sess->vha->fcport_waitQ);
 			return;
+		}
 		break;
 	case DSC_UPD_FCPORT:
 		/*
diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c
index 8dc82cfd38b2..2847243f6cfd 100644
--- a/drivers/scsi/qla2xxx/qla_tmpl.c
+++ b/drivers/scsi/qla2xxx/qla_tmpl.c
@@ -12,33 +12,6 @@
 #define IOBASE(vha)	IOBAR(ISPREG(vha))
 #define INVALID_ENTRY ((struct qla27xx_fwdt_entry *)0xffffffffffffffffUL)
 
-/* hardware_lock assumed held. */
-static void
-qla27xx_write_remote_reg(struct scsi_qla_host *vha,
-			 u32 addr, u32 data)
-{
-	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
-
-	ql_dbg(ql_dbg_misc, vha, 0xd300,
-	       "%s: addr/data = %xh/%xh\n", __func__, addr, data);
-
-	wrt_reg_dword(&reg->iobase_addr, 0x40);
-	wrt_reg_dword(&reg->iobase_c4, data);
-	wrt_reg_dword(&reg->iobase_window, addr);
-}
-
-void
-qla27xx_reset_mpi(scsi_qla_host_t *vha)
-{
-	ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd301,
-	       "Entered %s.\n", __func__);
-
-	qla27xx_write_remote_reg(vha, 0x104050, 0x40004);
-	qla27xx_write_remote_reg(vha, 0x10405c, 0x4);
-
-	vha->hw->stat.num_mpi_reset++;
-}
-
 static inline void
 qla27xx_insert16(uint16_t value, void *buf, ulong *len)
 {
@@ -1028,7 +1001,6 @@ void
 qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked)
 {
 	ulong flags = 0;
-	bool need_mpi_reset = true;
 
 #ifndef __CHECKER__
 	if (!hardware_locked)
@@ -1036,14 +1008,20 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked)
 #endif
 	if (!vha->hw->mpi_fw_dump) {
 		ql_log(ql_log_warn, vha, 0x02f3, "-> mpi_fwdump no buffer\n");
-	} else if (vha->hw->mpi_fw_dumped) {
-		ql_log(ql_log_warn, vha, 0x02f4,
-		       "-> MPI firmware already dumped (%p) -- ignoring request\n",
-		       vha->hw->mpi_fw_dump);
 	} else {
 		struct fwdt *fwdt = &vha->hw->fwdt[1];
 		ulong len;
 		void *buf = vha->hw->mpi_fw_dump;
+		bool walk_template_only = false;
+
+		if (vha->hw->mpi_fw_dumped) {
+			/* Use the spare area for any further dumps. */
+			buf += fwdt->dump_size;
+			walk_template_only = true;
+			ql_log(ql_log_warn, vha, 0x02f4,
+			       "-> MPI firmware already dumped -- dump saving to temporary buffer %p.\n",
+			       buf);
+		}
 
 		ql_log(ql_log_warn, vha, 0x02f5, "-> fwdt1 running...\n");
 		if (!fwdt->template) {
@@ -1058,9 +1036,10 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked)
 			ql_log(ql_log_warn, vha, 0x02f7,
 			       "-> fwdt1 fwdump residual=%+ld\n",
 			       fwdt->dump_size - len);
-		} else {
-			need_mpi_reset = false;
 		}
+		vha->hw->stat.num_mpi_reset++;
+		if (walk_template_only)
+			goto bailout;
 
 		vha->hw->mpi_fw_dump_len = len;
 		vha->hw->mpi_fw_dumped = 1;
@@ -1072,8 +1051,6 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked)
 	}
 
 bailout:
-	if (need_mpi_reset)
-		qla27xx_reset_mpi(vha);
 #ifndef __CHECKER__
 	if (!hardware_locked)
 		spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 7affaaf8b98e..198130b6a996 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -530,7 +530,7 @@ static void scsi_uninit_cmd(struct scsi_cmnd *cmd)
 	}
 }
 
-static void scsi_free_sgtables(struct scsi_cmnd *cmd)
+void scsi_free_sgtables(struct scsi_cmnd *cmd)
 {
 	if (cmd->sdb.table.nents)
 		sg_free_table_chained(&cmd->sdb.table,
@@ -539,6 +539,7 @@ static void scsi_free_sgtables(struct scsi_cmnd *cmd)
 		sg_free_table_chained(&cmd->prot_sdb->table,
 				SCSI_INLINE_PROT_SG_CNT);
 }
+EXPORT_SYMBOL_GPL(scsi_free_sgtables);
 
 static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd)
 {
@@ -966,7 +967,7 @@ static inline bool scsi_cmd_needs_dma_drain(struct scsi_device *sdev,
 }
 
 /**
- * scsi_init_io - SCSI I/O initialization function.
+ * scsi_alloc_sgtables - allocate S/G tables for a command
  * @cmd:  command descriptor we wish to initialize
  *
  * Returns:
@@ -974,7 +975,7 @@ static inline bool scsi_cmd_needs_dma_drain(struct scsi_device *sdev,
  * * BLK_STS_RESOURCE - if the failure is retryable
  * * BLK_STS_IOERR    - if the failure is fatal
  */
-blk_status_t scsi_init_io(struct scsi_cmnd *cmd)
+blk_status_t scsi_alloc_sgtables(struct scsi_cmnd *cmd)
 {
 	struct scsi_device *sdev = cmd->device;
 	struct request *rq = cmd->request;
@@ -1066,7 +1067,7 @@ blk_status_t scsi_init_io(struct scsi_cmnd *cmd)
 	scsi_free_sgtables(cmd);
 	return ret;
 }
-EXPORT_SYMBOL(scsi_init_io);
+EXPORT_SYMBOL(scsi_alloc_sgtables);
 
 /**
  * scsi_initialize_rq - initialize struct scsi_cmnd partially
@@ -1154,7 +1155,7 @@ static blk_status_t scsi_setup_scsi_cmnd(struct scsi_device *sdev,
 	 * submit a request without an attached bio.
 	 */
 	if (req->bio) {
-		blk_status_t ret = scsi_init_io(cmd);
+		blk_status_t ret = scsi_alloc_sgtables(cmd);
 		if (unlikely(ret != BLK_STS_OK))
 			return ret;
 	} else {
@@ -1194,7 +1195,6 @@ static blk_status_t scsi_setup_cmnd(struct scsi_device *sdev,
 		struct request *req)
 {
 	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req);
-	blk_status_t ret;
 
 	if (!blk_rq_bytes(req))
 		cmd->sc_data_direction = DMA_NONE;
@@ -1204,14 +1204,8 @@ static blk_status_t scsi_setup_cmnd(struct scsi_device *sdev,
 		cmd->sc_data_direction = DMA_FROM_DEVICE;
 
 	if (blk_rq_is_scsi(req))
-		ret = scsi_setup_scsi_cmnd(sdev, req);
-	else
-		ret = scsi_setup_fs_cmnd(sdev, req);
-
-	if (ret != BLK_STS_OK)
-		scsi_free_sgtables(cmd);
-
-	return ret;
+		return scsi_setup_scsi_cmnd(sdev, req);
+	return scsi_setup_fs_cmnd(sdev, req);
 }
 
 static blk_status_t
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 16503e22691e..e93a9a874004 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -866,7 +866,7 @@ static blk_status_t sd_setup_unmap_cmnd(struct scsi_cmnd *cmd)
 	cmd->transfersize = data_len;
 	rq->timeout = SD_TIMEOUT;
 
-	return scsi_init_io(cmd);
+	return scsi_alloc_sgtables(cmd);
 }
 
 static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd,
@@ -897,7 +897,7 @@ static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd,
 	cmd->transfersize = data_len;
 	rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
 
-	return scsi_init_io(cmd);
+	return scsi_alloc_sgtables(cmd);
 }
 
 static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
@@ -928,7 +928,7 @@ static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd,
 	cmd->transfersize = data_len;
 	rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT;
 
-	return scsi_init_io(cmd);
+	return scsi_alloc_sgtables(cmd);
 }
 
 static blk_status_t sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd)
@@ -1069,7 +1069,7 @@ static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd)
 	 * knows how much to actually write.
 	 */
 	rq->__data_len = sdp->sector_size;
-	ret = scsi_init_io(cmd);
+	ret = scsi_alloc_sgtables(cmd);
 	rq->__data_len = blk_rq_bytes(rq);
 
 	return ret;
@@ -1187,23 +1187,24 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 	unsigned int dif;
 	bool dix;
 
-	ret = scsi_init_io(cmd);
+	ret = scsi_alloc_sgtables(cmd);
 	if (ret != BLK_STS_OK)
 		return ret;
 
+	ret = BLK_STS_IOERR;
 	if (!scsi_device_online(sdp) || sdp->changed) {
 		scmd_printk(KERN_ERR, cmd, "device offline or changed\n");
-		return BLK_STS_IOERR;
+		goto fail;
 	}
 
 	if (blk_rq_pos(rq) + blk_rq_sectors(rq) > get_capacity(rq->rq_disk)) {
 		scmd_printk(KERN_ERR, cmd, "access beyond end of device\n");
-		return BLK_STS_IOERR;
+		goto fail;
 	}
 
 	if ((blk_rq_pos(rq) & mask) || (blk_rq_sectors(rq) & mask)) {
 		scmd_printk(KERN_ERR, cmd, "request not aligned to the logical block size\n");
-		return BLK_STS_IOERR;
+		goto fail;
 	}
 
 	/*
@@ -1225,7 +1226,7 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 	if (req_op(rq) == REQ_OP_ZONE_APPEND) {
 		ret = sd_zbc_prepare_zone_append(cmd, &lba, nr_blocks);
 		if (ret)
-			return ret;
+			goto fail;
 	}
 
 	fua = rq->cmd_flags & REQ_FUA ? 0x8 : 0;
@@ -1253,7 +1254,7 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 	}
 
 	if (unlikely(ret != BLK_STS_OK))
-		return ret;
+		goto fail;
 
 	/*
 	 * We shouldn't disconnect in the middle of a sector, so with a dumb
@@ -1277,10 +1278,12 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
 				     blk_rq_sectors(rq)));
 
 	/*
-	 * This indicates that the command is ready from our end to be
-	 * queued.
+	 * This indicates that the command is ready from our end to be queued.
 	 */
 	return BLK_STS_OK;
+fail:
+	scsi_free_sgtables(cmd);
+	return ret;
 }
 
 static blk_status_t sd_init_command(struct scsi_cmnd *cmd)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 3b3a53c6a0de..7e8fe55f3b33 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -392,15 +392,11 @@ static blk_status_t sr_init_command(struct scsi_cmnd *SCpnt)
 	struct request *rq = SCpnt->request;
 	blk_status_t ret;
 
-	ret = scsi_init_io(SCpnt);
+	ret = scsi_alloc_sgtables(SCpnt);
 	if (ret != BLK_STS_OK)
-		goto out;
+		return ret;
 	cd = scsi_cd(rq->rq_disk);
 
-	/* from here on until we're complete, any goto out
-	 * is used for a killable error condition */
-	ret = BLK_STS_IOERR;
-
 	SCSI_LOG_HLQUEUE(1, scmd_printk(KERN_INFO, SCpnt,
 		"Doing sr request, block = %d\n", block));
 
@@ -509,12 +505,12 @@ static blk_status_t sr_init_command(struct scsi_cmnd *SCpnt)
 	SCpnt->allowed = MAX_RETRIES;
 
 	/*
-	 * This indicates that the command is ready from our end to be
-	 * queued.
+	 * This indicates that the command is ready from our end to be queued.
 	 */
-	ret = BLK_STS_OK;
+	return BLK_STS_OK;
  out:
-	return ret;
+	scsi_free_sgtables(SCpnt);
+	return BLK_STS_IOERR;
 }
 
 static int sr_block_open(struct block_device *bdev, fmode_t mode)
diff --git a/drivers/soc/qcom/rpmh-internal.h b/drivers/soc/qcom/rpmh-internal.h
index ef60e790a750..344ba687c13b 100644
--- a/drivers/soc/qcom/rpmh-internal.h
+++ b/drivers/soc/qcom/rpmh-internal.h
@@ -8,6 +8,7 @@
 #define __RPM_INTERNAL_H__
 
 #include <linux/bitmap.h>
+#include <linux/wait.h>
 #include <soc/qcom/tcs.h>
 
 #define TCS_TYPE_NR			4
@@ -106,6 +107,8 @@ struct rpmh_ctrlr {
  * @lock:               Synchronize state of the controller.  If RPMH's cache
  *                      lock will also be held, the order is: drv->lock then
  *                      cache_lock.
+ * @tcs_wait:           Wait queue used to wait for @tcs_in_use to free up a
+ *                      slot
  * @client:             Handle to the DRV's client.
  */
 struct rsc_drv {
@@ -118,6 +121,7 @@ struct rsc_drv {
 	struct tcs_group tcs[TCS_TYPE_NR];
 	DECLARE_BITMAP(tcs_in_use, MAX_TCS_NR);
 	spinlock_t lock;
+	wait_queue_head_t tcs_wait;
 	struct rpmh_ctrlr client;
 };
 
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index ae6675782581..a297911afe57 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/wait.h>
 
 #include <soc/qcom/cmd-db.h>
 #include <soc/qcom/tcs.h>
@@ -453,6 +454,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p)
 		if (!drv->tcs[ACTIVE_TCS].num_tcs)
 			enable_tcs_irq(drv, i, false);
 		spin_unlock(&drv->lock);
+		wake_up(&drv->tcs_wait);
 		if (req)
 			rpmh_tx_done(req, err);
 	}
@@ -571,73 +573,34 @@ static int find_free_tcs(struct tcs_group *tcs)
 }
 
 /**
- * tcs_write() - Store messages into a TCS right now, or return -EBUSY.
+ * claim_tcs_for_req() - Claim a tcs in the given tcs_group; only for active.
  * @drv: The controller.
+ * @tcs: The tcs_group used for ACTIVE_ONLY transfers.
  * @msg: The data to be sent.
  *
- * Grabs a TCS for ACTIVE_ONLY transfers and writes the messages to it.
+ * Claims a tcs in the given tcs_group while making sure that no existing cmd
+ * is in flight that would conflict with the one in @msg.
  *
- * If there are no free TCSes for ACTIVE_ONLY transfers or if a command for
- * the same address is already transferring returns -EBUSY which means the
- * client should retry shortly.
+ * Context: Must be called with the drv->lock held since that protects
+ * tcs_in_use.
  *
- * Return: 0 on success, -EBUSY if client should retry, or an error.
- *         Client should have interrupts enabled for a bit before retrying.
+ * Return: The id of the claimed tcs or -EBUSY if a matching msg is in flight
+ * or the tcs_group is full.
  */
-static int tcs_write(struct rsc_drv *drv, const struct tcs_request *msg)
+static int claim_tcs_for_req(struct rsc_drv *drv, struct tcs_group *tcs,
+			     const struct tcs_request *msg)
 {
-	struct tcs_group *tcs;
-	int tcs_id;
-	unsigned long flags;
 	int ret;
 
-	tcs = get_tcs_for_msg(drv, msg);
-	if (IS_ERR(tcs))
-		return PTR_ERR(tcs);
-
-	spin_lock_irqsave(&drv->lock, flags);
 	/*
 	 * The h/w does not like if we send a request to the same address,
 	 * when one is already in-flight or being processed.
 	 */
 	ret = check_for_req_inflight(drv, tcs, msg);
 	if (ret)
-		goto unlock;
-
-	ret = find_free_tcs(tcs);
-	if (ret < 0)
-		goto unlock;
-	tcs_id = ret;
-
-	tcs->req[tcs_id - tcs->offset] = msg;
-	set_bit(tcs_id, drv->tcs_in_use);
-	if (msg->state == RPMH_ACTIVE_ONLY_STATE && tcs->type != ACTIVE_TCS) {
-		/*
-		 * Clear previously programmed WAKE commands in selected
-		 * repurposed TCS to avoid triggering them. tcs->slots will be
-		 * cleaned from rpmh_flush() by invoking rpmh_rsc_invalidate()
-		 */
-		write_tcs_reg_sync(drv, RSC_DRV_CMD_ENABLE, tcs_id, 0);
-		write_tcs_reg_sync(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, 0);
-		enable_tcs_irq(drv, tcs_id, true);
-	}
-	spin_unlock_irqrestore(&drv->lock, flags);
-
-	/*
-	 * These two can be done after the lock is released because:
-	 * - We marked "tcs_in_use" under lock.
-	 * - Once "tcs_in_use" has been marked nobody else could be writing
-	 *   to these registers until the interrupt goes off.
-	 * - The interrupt can't go off until we trigger w/ the last line
-	 *   of __tcs_set_trigger() below.
-	 */
-	__tcs_buffer_write(drv, tcs_id, 0, msg);
-	__tcs_set_trigger(drv, tcs_id, true);
+		return ret;
 
-	return 0;
-unlock:
-	spin_unlock_irqrestore(&drv->lock, flags);
-	return ret;
+	return find_free_tcs(tcs);
 }
 
 /**
@@ -664,18 +627,47 @@ static int tcs_write(struct rsc_drv *drv, const struct tcs_request *msg)
  */
 int rpmh_rsc_send_data(struct rsc_drv *drv, const struct tcs_request *msg)
 {
-	int ret;
+	struct tcs_group *tcs;
+	int tcs_id;
+	unsigned long flags;
 
-	do {
-		ret = tcs_write(drv, msg);
-		if (ret == -EBUSY) {
-			pr_info_ratelimited("TCS Busy, retrying RPMH message send: addr=%#x\n",
-					    msg->cmds[0].addr);
-			udelay(10);
-		}
-	} while (ret == -EBUSY);
+	tcs = get_tcs_for_msg(drv, msg);
+	if (IS_ERR(tcs))
+		return PTR_ERR(tcs);
 
-	return ret;
+	spin_lock_irqsave(&drv->lock, flags);
+
+	/* Wait forever for a free tcs. It better be there eventually! */
+	wait_event_lock_irq(drv->tcs_wait,
+			    (tcs_id = claim_tcs_for_req(drv, tcs, msg)) >= 0,
+			    drv->lock);
+
+	tcs->req[tcs_id - tcs->offset] = msg;
+	set_bit(tcs_id, drv->tcs_in_use);
+	if (msg->state == RPMH_ACTIVE_ONLY_STATE && tcs->type != ACTIVE_TCS) {
+		/*
+		 * Clear previously programmed WAKE commands in selected
+		 * repurposed TCS to avoid triggering them. tcs->slots will be
+		 * cleaned from rpmh_flush() by invoking rpmh_rsc_invalidate()
+		 */
+		write_tcs_reg_sync(drv, RSC_DRV_CMD_ENABLE, tcs_id, 0);
+		write_tcs_reg_sync(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, 0);
+		enable_tcs_irq(drv, tcs_id, true);
+	}
+	spin_unlock_irqrestore(&drv->lock, flags);
+
+	/*
+	 * These two can be done after the lock is released because:
+	 * - We marked "tcs_in_use" under lock.
+	 * - Once "tcs_in_use" has been marked nobody else could be writing
+	 *   to these registers until the interrupt goes off.
+	 * - The interrupt can't go off until we trigger w/ the last line
+	 *   of __tcs_set_trigger() below.
+	 */
+	__tcs_buffer_write(drv, tcs_id, 0, msg);
+	__tcs_set_trigger(drv, tcs_id, true);
+
+	return 0;
 }
 
 /**
@@ -983,6 +975,7 @@ static int rpmh_rsc_probe(struct platform_device *pdev)
 		return ret;
 
 	spin_lock_init(&drv->lock);
+	init_waitqueue_head(&drv->tcs_wait);
 	bitmap_zero(drv->tcs_in_use, MAX_TCS_NR);
 
 	irq = platform_get_irq(pdev, drv->id);
diff --git a/drivers/soc/ti/k3-ringacc.c b/drivers/soc/ti/k3-ringacc.c
index 6dcc21dde0cb..1147dc4c1d59 100644
--- a/drivers/soc/ti/k3-ringacc.c
+++ b/drivers/soc/ti/k3-ringacc.c
@@ -10,6 +10,7 @@
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/sys_soc.h>
 #include <linux/soc/ti/k3-ringacc.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
 #include <linux/soc/ti/ti_sci_inta_msi.h>
@@ -208,6 +209,15 @@ struct k3_ringacc {
 	const struct k3_ringacc_ops *ops;
 };
 
+/**
+ * struct k3_ringacc - Rings accelerator SoC data
+ *
+ * @dma_ring_reset_quirk:  DMA reset w/a enable
+ */
+struct k3_ringacc_soc_data {
+	unsigned dma_ring_reset_quirk:1;
+};
+
 static long k3_ringacc_ring_get_fifo_pos(struct k3_ring *ring)
 {
 	return K3_RINGACC_FIFO_WINDOW_SIZE_BYTES -
@@ -1051,9 +1061,6 @@ static int k3_ringacc_probe_dt(struct k3_ringacc *ringacc)
 		return ret;
 	}
 
-	ringacc->dma_ring_reset_quirk =
-			of_property_read_bool(node, "ti,dma-ring-reset-quirk");
-
 	ringacc->tisci = ti_sci_get_by_phandle(node, "ti,sci");
 	if (IS_ERR(ringacc->tisci)) {
 		ret = PTR_ERR(ringacc->tisci);
@@ -1084,9 +1091,22 @@ static int k3_ringacc_probe_dt(struct k3_ringacc *ringacc)
 						 ringacc->rm_gp_range);
 }
 
+static const struct k3_ringacc_soc_data k3_ringacc_soc_data_sr1 = {
+	.dma_ring_reset_quirk = 1,
+};
+
+static const struct soc_device_attribute k3_ringacc_socinfo[] = {
+	{ .family = "AM65X",
+	  .revision = "SR1.0",
+	  .data = &k3_ringacc_soc_data_sr1
+	},
+	{/* sentinel */}
+};
+
 static int k3_ringacc_init(struct platform_device *pdev,
 			   struct k3_ringacc *ringacc)
 {
+	const struct soc_device_attribute *soc;
 	void __iomem *base_fifo, *base_rt;
 	struct device *dev = &pdev->dev;
 	struct resource *res;
@@ -1103,6 +1123,13 @@ static int k3_ringacc_init(struct platform_device *pdev,
 	if (ret)
 		return ret;
 
+	soc = soc_device_match(k3_ringacc_socinfo);
+	if (soc && soc->data) {
+		const struct k3_ringacc_soc_data *soc_data = soc->data;
+
+		ringacc->dma_ring_reset_quirk = soc_data->dma_ring_reset_quirk;
+	}
+
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rt");
 	base_rt = devm_ioremap_resource(dev, res);
 	if (IS_ERR(base_rt))
diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c
index b08d8e9a8ee9..89531587d9cc 100644
--- a/drivers/spi/spi-mtk-nor.c
+++ b/drivers/spi/spi-mtk-nor.c
@@ -89,7 +89,7 @@
 // Buffered page program can do one 128-byte transfer
 #define MTK_NOR_PP_SIZE			128
 
-#define CLK_TO_US(sp, clkcnt)		((clkcnt) * 1000000 / sp->spi_freq)
+#define CLK_TO_US(sp, clkcnt)		DIV_ROUND_UP(clkcnt, sp->spi_freq / 1000000)
 
 struct mtk_nor {
 	struct spi_controller *ctlr;
@@ -177,6 +177,10 @@ static int mtk_nor_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op)
 	if ((op->addr.nbytes == 3) || (op->addr.nbytes == 4)) {
 		if ((op->data.dir == SPI_MEM_DATA_IN) &&
 		    mtk_nor_match_read(op)) {
+			// limit size to prevent timeout calculation overflow
+			if (op->data.nbytes > 0x400000)
+				op->data.nbytes = 0x400000;
+
 			if ((op->addr.val & MTK_NOR_DMA_ALIGN_MASK) ||
 			    (op->data.nbytes < MTK_NOR_DMA_ALIGN))
 				op->data.nbytes = 1;
diff --git a/drivers/spi/spi-sprd.c b/drivers/spi/spi-sprd.c
index 6678f1cbc566..0443fec3a6ab 100644
--- a/drivers/spi/spi-sprd.c
+++ b/drivers/spi/spi-sprd.c
@@ -563,11 +563,11 @@ static int sprd_spi_dma_request(struct sprd_spi *ss)
 
 	ss->dma.dma_chan[SPRD_SPI_TX]  = dma_request_chan(ss->dev, "tx_chn");
 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_TX])) {
+		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);
 		if (PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]) == -EPROBE_DEFER)
 			return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);
 
 		dev_err(ss->dev, "request TX DMA channel failed!\n");
-		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);
 		return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);
 	}
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 48ec2ee953dc..d740c4782775 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1342,6 +1342,7 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
 		if (dev->irq && board->has_ao_fifo) {
 			dev->write_subdev = s;
 			s->subdev_flags	|= SDF_CMD_WRITE;
+			s->len_chanlist	= s->n_chan;
 			s->do_cmdtest	= cb_pcidas_ao_cmdtest;
 			s->do_cmd	= cb_pcidas_ao_cmd;
 			s->cancel	= cb_pcidas_ao_cancel;
diff --git a/drivers/staging/fieldbus/anybuss/arcx-anybus.c b/drivers/staging/fieldbus/anybuss/arcx-anybus.c
index 5b8d0bae9ff3..b5fded15e8a6 100644
--- a/drivers/staging/fieldbus/anybuss/arcx-anybus.c
+++ b/drivers/staging/fieldbus/anybuss/arcx-anybus.c
@@ -293,7 +293,7 @@ static int controller_probe(struct platform_device *pdev)
 	regulator = devm_regulator_register(dev, &can_power_desc, &config);
 	if (IS_ERR(regulator)) {
 		err = PTR_ERR(regulator);
-		goto out_reset;
+		goto out_ida;
 	}
 	/* make controller info visible to userspace */
 	cd->class_dev = kzalloc(sizeof(*cd->class_dev), GFP_KERNEL);
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index cfb673a52b25..0bf545849b11 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -147,12 +147,6 @@ int cvm_oct_phy_setup_device(struct net_device *dev)
 
 	phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
 	if (!phy_node && of_phy_is_fixed_link(priv->of_node)) {
-		int rc;
-
-		rc = of_phy_register_fixed_link(priv->of_node);
-		if (rc)
-			return rc;
-
 		phy_node = of_node_get(priv->of_node);
 	}
 	if (!phy_node)
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 2c16230f993c..9ebd665e5d42 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -69,15 +69,17 @@ static inline int cvm_oct_check_rcv_error(struct cvmx_wqe *work)
 	else
 		port = work->word1.cn38xx.ipprt;
 
-	if ((work->word2.snoip.err_code == 10) && (work->word1.len <= 64)) {
+	if ((work->word2.snoip.err_code == 10) && (work->word1.len <= 64))
 		/*
 		 * Ignore length errors on min size packets. Some
 		 * equipment incorrectly pads packets to 64+4FCS
 		 * instead of 60+4FCS.  Note these packets still get
 		 * counted as frame errors.
 		 */
-	} else if (work->word2.snoip.err_code == 5 ||
-		   work->word2.snoip.err_code == 7) {
+		return 0;
+
+	if (work->word2.snoip.err_code == 5 ||
+	    work->word2.snoip.err_code == 7) {
 		/*
 		 * We received a packet with either an alignment error
 		 * or a FCS error. This may be signalling that we are
@@ -108,7 +110,10 @@ static inline int cvm_oct_check_rcv_error(struct cvmx_wqe *work)
 				/* Port received 0xd5 preamble */
 				work->packet_ptr.s.addr += i + 1;
 				work->word1.len -= i + 5;
-			} else if ((*ptr & 0xf) == 0xd) {
+				return 0;
+			}
+
+			if ((*ptr & 0xf) == 0xd) {
 				/* Port received 0xd preamble */
 				work->packet_ptr.s.addr += i;
 				work->word1.len -= i + 4;
@@ -118,21 +123,20 @@ static inline int cvm_oct_check_rcv_error(struct cvmx_wqe *work)
 					    ((*(ptr + 1) & 0xf) << 4);
 					ptr++;
 				}
-			} else {
-				printk_ratelimited("Port %d unknown preamble, packet dropped\n",
-						   port);
-				cvm_oct_free_work(work);
-				return 1;
+				return 0;
 			}
+
+			printk_ratelimited("Port %d unknown preamble, packet dropped\n",
+					   port);
+			cvm_oct_free_work(work);
+			return 1;
 		}
-	} else {
-		printk_ratelimited("Port %d receive error code %d, packet dropped\n",
-				   port, work->word2.snoip.err_code);
-		cvm_oct_free_work(work);
-		return 1;
 	}
 
-	return 0;
+	printk_ratelimited("Port %d receive error code %d, packet dropped\n",
+			   port, work->word2.snoip.err_code);
+	cvm_oct_free_work(work);
+	return 1;
 }
 
 static void copy_segments_to_skb(struct cvmx_wqe *work, struct sk_buff *skb)
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 204f0b1e2739..5dea6e96ec90 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -13,6 +13,7 @@
 #include <linux/phy.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
+#include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
@@ -892,6 +893,14 @@ static int cvm_oct_probe(struct platform_device *pdev)
 				break;
 			}
 
+			if (priv->of_node && of_phy_is_fixed_link(priv->of_node)) {
+				if (of_phy_register_fixed_link(priv->of_node)) {
+					netdev_err(dev, "Failed to register fixed link for interface %d, port %d\n",
+						   interface, priv->port);
+					dev->netdev_ops = NULL;
+				}
+			}
+
 			if (!dev->netdev_ops) {
 				free_netdev(dev);
 			} else if (register_netdev(dev) < 0) {
diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 7dace7c17bf5..536c62001c70 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -761,17 +761,6 @@ int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 		return -EOPNOTSUPP;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
-		if (!wdev->vif[i]) {
-			wdev->vif[i] = vif;
-			wvif->id = i;
-			break;
-		}
-	}
-	if (i == ARRAY_SIZE(wdev->vif)) {
-		mutex_unlock(&wdev->conf_mutex);
-		return -EOPNOTSUPP;
-	}
 	// FIXME: prefer use of container_of() to get vif
 	wvif->vif = vif;
 	wvif->wdev = wdev;
@@ -788,12 +777,22 @@ int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	init_completion(&wvif->scan_complete);
 	INIT_WORK(&wvif->scan_work, wfx_hw_scan_work);
 
-	mutex_unlock(&wdev->conf_mutex);
+	wfx_tx_queues_init(wvif);
+	wfx_tx_policy_init(wvif);
+
+	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
+		if (!wdev->vif[i]) {
+			wdev->vif[i] = vif;
+			wvif->id = i;
+			break;
+		}
+	}
+	WARN(i == ARRAY_SIZE(wdev->vif), "try to instantiate more vif than supported");
 
 	hif_set_macaddr(wvif, vif->addr);
 
-	wfx_tx_queues_init(wvif);
-	wfx_tx_policy_init(wvif);
+	mutex_unlock(&wdev->conf_mutex);
+
 	wvif = NULL;
 	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
 		// Combo mode does not support Block Acks. We can re-enable them
@@ -825,6 +824,7 @@ void wfx_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	wvif->vif = NULL;
 
 	mutex_unlock(&wdev->conf_mutex);
+
 	wvif = NULL;
 	while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
 		// Combo mode does not support Block Acks. We can re-enable them
diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index 64637e09a095..2f6199ebf769 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -200,7 +200,8 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
 	int name_len;
 	int rc;
 
-	if (connection_method == TEE_IOCTL_LOGIN_PUBLIC) {
+	if (connection_method == TEE_IOCTL_LOGIN_PUBLIC ||
+	    connection_method == TEE_IOCTL_LOGIN_REE_KERNEL) {
 		/* Nil UUID to be passed to TEE environment */
 		uuid_copy(uuid, &uuid_null);
 		return 0;
diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 718e010fcb04..09baef4ccc39 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -50,25 +50,25 @@ static const char serial21285_name[] = "Footbridge UART";
 
 static bool is_enabled(struct uart_port *port, int bit)
 {
-	unsigned long private_data = (unsigned long)port->private_data;
+	unsigned long *private_data = (unsigned long *)&port->private_data;
 
-	if (test_bit(bit, &private_data))
+	if (test_bit(bit, private_data))
 		return true;
 	return false;
 }
 
 static void enable(struct uart_port *port, int bit)
 {
-	unsigned long private_data = (unsigned long)port->private_data;
+	unsigned long *private_data = (unsigned long *)&port->private_data;
 
-	set_bit(bit, &private_data);
+	set_bit(bit, private_data);
 }
 
 static void disable(struct uart_port *port, int bit)
 {
-	unsigned long private_data = (unsigned long)port->private_data;
+	unsigned long *private_data = (unsigned long *)&port->private_data;
 
-	clear_bit(bit, &private_data);
+	clear_bit(bit, private_data);
 }
 
 #define is_tx_enabled(port)	is_enabled(port, tx_enabled_bit)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index e17465a8a773..ffa90a1c4c0a 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -314,9 +314,10 @@ MODULE_DEVICE_TABLE(of, lpuart_dt_ids);
 /* Forward declare this for the dma callbacks*/
 static void lpuart_dma_tx_complete(void *arg);
 
-static inline bool is_ls1028a_lpuart(struct lpuart_port *sport)
+static inline bool is_layerscape_lpuart(struct lpuart_port *sport)
 {
-	return sport->devtype == LS1028A_LPUART;
+	return (sport->devtype == LS1021A_LPUART ||
+		sport->devtype == LS1028A_LPUART);
 }
 
 static inline bool is_imx8qxp_lpuart(struct lpuart_port *sport)
@@ -1644,11 +1645,11 @@ static int lpuart32_startup(struct uart_port *port)
 					    UARTFIFO_FIFOSIZE_MASK);
 
 	/*
-	 * The LS1028A has a fixed length of 16 words. Although it supports the
-	 * RX/TXSIZE fields their encoding is different. Eg the reference manual
-	 * states 0b101 is 16 words.
+	 * The LS1021A and LS1028A have a fixed FIFO depth of 16 words.
+	 * Although they support the RX/TXSIZE fields, their encoding is
+	 * different. Eg the reference manual states 0b101 is 16 words.
 	 */
-	if (is_ls1028a_lpuart(sport)) {
+	if (is_layerscape_lpuart(sport)) {
 		sport->rxfifo_size = 16;
 		sport->txfifo_size = 16;
 		sport->port.fifosize = sport->txfifo_size;
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 0db53b5b3acf..78acc270e39a 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -743,8 +743,13 @@ static void k_fn(struct vc_data *vc, unsigned char value, char up_flag)
 		return;
 
 	if ((unsigned)value < ARRAY_SIZE(func_table)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&func_buf_lock, flags);
 		if (func_table[value])
 			puts_queue(vc, func_table[value]);
+		spin_unlock_irqrestore(&func_buf_lock, flags);
+
 	} else
 		pr_err("k_fn called with value=%d\n", value);
 }
@@ -1991,13 +1996,11 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
 #undef s
 #undef v
 
-/* FIXME: This one needs untangling and locking */
+/* FIXME: This one needs untangling */
 int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 {
 	struct kbsentry *kbs;
-	char *p;
 	u_char *q;
-	u_char __user *up;
 	int sz, fnw_sz;
 	int delta;
 	char *first_free, *fj, *fnw;
@@ -2023,23 +2026,19 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
 	i = array_index_nospec(kbs->kb_func, MAX_NR_FUNC);
 
 	switch (cmd) {
-	case KDGKBSENT:
-		sz = sizeof(kbs->kb_string) - 1; /* sz should have been
-						  a struct member */
-		up = user_kdgkb->kb_string;
-		p = func_table[i];
-		if(p)
-			for ( ; *p && sz; p++, sz--)
-				if (put_user(*p, up++)) {
-					ret = -EFAULT;
-					goto reterr;
-				}
-		if (put_user('\0', up)) {
-			ret = -EFAULT;
-			goto reterr;
-		}
-		kfree(kbs);
-		return ((p && *p) ? -EOVERFLOW : 0);
+	case KDGKBSENT: {
+		/* size should have been a struct member */
+		ssize_t len = sizeof(user_kdgkb->kb_string);
+
+		spin_lock_irqsave(&func_buf_lock, flags);
+		len = strlcpy(kbs->kb_string, func_table[i] ? : "", len);
+		spin_unlock_irqrestore(&func_buf_lock, flags);
+
+		ret = copy_to_user(user_kdgkb->kb_string, kbs->kb_string,
+				len + 1) ? -EFAULT : 0;
+
+		goto reterr;
+	}
 	case KDSKBSENT:
 		if (!perm) {
 			ret = -EPERM;
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index bc33938e2f20..21bc7dd4ad7e 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -485,7 +485,7 @@ static int vt_k_ioctl(struct tty_struct *tty, unsigned int cmd,
 	return 0;
 }
 
-static inline int do_fontx_ioctl(int cmd,
+static inline int do_fontx_ioctl(struct vc_data *vc, int cmd,
 		struct consolefontdesc __user *user_cfd,
 		struct console_font_op *op)
 {
@@ -503,15 +503,16 @@ static inline int do_fontx_ioctl(int cmd,
 		op->height = cfdarg.charheight;
 		op->charcount = cfdarg.charcount;
 		op->data = cfdarg.chardata;
-		return con_font_op(vc_cons[fg_console].d, op);
-	case GIO_FONTX: {
+		return con_font_op(vc, op);
+
+	case GIO_FONTX:
 		op->op = KD_FONT_OP_GET;
 		op->flags = KD_FONT_FLAG_OLD;
 		op->width = 8;
 		op->height = cfdarg.charheight;
 		op->charcount = cfdarg.charcount;
 		op->data = cfdarg.chardata;
-		i = con_font_op(vc_cons[fg_console].d, op);
+		i = con_font_op(vc, op);
 		if (i)
 			return i;
 		cfdarg.charheight = op->height;
@@ -519,12 +520,11 @@ static inline int do_fontx_ioctl(int cmd,
 		if (copy_to_user(user_cfd, &cfdarg, sizeof(struct consolefontdesc)))
 			return -EFAULT;
 		return 0;
-		}
 	}
 	return -EINVAL;
 }
 
-static int vt_io_fontreset(struct console_font_op *op)
+static int vt_io_fontreset(struct vc_data *vc, struct console_font_op *op)
 {
 	int ret;
 
@@ -538,19 +538,19 @@ static int vt_io_fontreset(struct console_font_op *op)
 
 	op->op = KD_FONT_OP_SET_DEFAULT;
 	op->data = NULL;
-	ret = con_font_op(vc_cons[fg_console].d, op);
+	ret = con_font_op(vc, op);
 	if (ret)
 		return ret;
 
 	console_lock();
-	con_set_default_unimap(vc_cons[fg_console].d);
+	con_set_default_unimap(vc);
 	console_unlock();
 
 	return 0;
 }
 
 static inline int do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud,
-		struct vc_data *vc)
+		bool perm, struct vc_data *vc)
 {
 	struct unimapdesc tmp;
 
@@ -558,9 +558,11 @@ static inline int do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud,
 		return -EFAULT;
 	switch (cmd) {
 	case PIO_UNIMAP:
+		if (!perm)
+			return -EPERM;
 		return con_set_unimap(vc, tmp.entry_ct, tmp.entries);
 	case GIO_UNIMAP:
-		if (fg_console != vc->vc_num)
+		if (!perm && fg_console != vc->vc_num)
 			return -EPERM;
 		return con_get_unimap(vc, tmp.entry_ct, &(user_ud->entry_ct),
 				tmp.entries);
@@ -583,7 +585,7 @@ static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up,
 		op.height = 0;
 		op.charcount = 256;
 		op.data = up;
-		return con_font_op(vc_cons[fg_console].d, &op);
+		return con_font_op(vc, &op);
 
 	case GIO_FONT:
 		op.op = KD_FONT_OP_GET;
@@ -592,7 +594,7 @@ static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up,
 		op.height = 32;
 		op.charcount = 256;
 		op.data = up;
-		return con_font_op(vc_cons[fg_console].d, &op);
+		return con_font_op(vc, &op);
 
 	case PIO_CMAP:
                 if (!perm)
@@ -608,13 +610,13 @@ static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up,
 
 		fallthrough;
 	case GIO_FONTX:
-		return do_fontx_ioctl(cmd, up, &op);
+		return do_fontx_ioctl(vc, cmd, up, &op);
 
 	case PIO_FONTRESET:
 		if (!perm)
 			return -EPERM;
 
-		return vt_io_fontreset(&op);
+		return vt_io_fontreset(vc, &op);
 
 	case PIO_SCRNMAP:
 		if (!perm)
@@ -640,10 +642,7 @@ static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up,
 
 	case PIO_UNIMAP:
 	case GIO_UNIMAP:
-		if (!perm)
-			return -EPERM;
-
-		return do_unimap_ioctl(cmd, up, vc);
+		return do_unimap_ioctl(cmd, up, perm, vc);
 
 	default:
 		return -ENOIOCTLCMD;
@@ -1068,8 +1067,9 @@ struct compat_consolefontdesc {
 };
 
 static inline int
-compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
-			 int perm, struct console_font_op *op)
+compat_fontx_ioctl(struct vc_data *vc, int cmd,
+		   struct compat_consolefontdesc __user *user_cfd,
+		   int perm, struct console_font_op *op)
 {
 	struct compat_consolefontdesc cfdarg;
 	int i;
@@ -1087,7 +1087,8 @@ compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
 		op->height = cfdarg.charheight;
 		op->charcount = cfdarg.charcount;
 		op->data = compat_ptr(cfdarg.chardata);
-		return con_font_op(vc_cons[fg_console].d, op);
+		return con_font_op(vc, op);
+
 	case GIO_FONTX:
 		op->op = KD_FONT_OP_GET;
 		op->flags = KD_FONT_FLAG_OLD;
@@ -1095,7 +1096,7 @@ compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
 		op->height = cfdarg.charheight;
 		op->charcount = cfdarg.charcount;
 		op->data = compat_ptr(cfdarg.chardata);
-		i = con_font_op(vc_cons[fg_console].d, op);
+		i = con_font_op(vc, op);
 		if (i)
 			return i;
 		cfdarg.charheight = op->height;
@@ -1185,7 +1186,7 @@ long vt_compat_ioctl(struct tty_struct *tty,
 	 */
 	case PIO_FONTX:
 	case GIO_FONTX:
-		return compat_fontx_ioctl(cmd, up, perm, &op);
+		return compat_fontx_ioctl(vc, cmd, up, perm, &op);
 
 	case KDFONTOP:
 		return compat_kdfontop_ioctl(up, perm, &op, vc);
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 73efb80815db..6dca744e39e9 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -1048,8 +1048,6 @@ void uio_unregister_device(struct uio_info *info)
 
 	idev = info->uio_dev;
 
-	uio_free_minor(idev);
-
 	mutex_lock(&idev->info_lock);
 	uio_dev_del_attributes(idev);
 
@@ -1064,6 +1062,8 @@ void uio_unregister_device(struct uio_info *info)
 
 	device_unregister(&idev->dev);
 
+	uio_free_minor(idev);
+
 	return;
 }
 EXPORT_SYMBOL_GPL(uio_unregister_device);
diff --git a/drivers/usb/cdns3/ep0.c b/drivers/usb/cdns3/ep0.c
index d9779abc65b2..89b94e45ee15 100644
--- a/drivers/usb/cdns3/ep0.c
+++ b/drivers/usb/cdns3/ep0.c
@@ -137,48 +137,36 @@ static int cdns3_req_ep0_set_configuration(struct cdns3_device *priv_dev,
 					   struct usb_ctrlrequest *ctrl_req)
 {
 	enum usb_device_state device_state = priv_dev->gadget.state;
-	struct cdns3_endpoint *priv_ep;
 	u32 config = le16_to_cpu(ctrl_req->wValue);
 	int result = 0;
-	int i;
 
 	switch (device_state) {
 	case USB_STATE_ADDRESS:
-		/* Configure non-control EPs */
-		for (i = 0; i < CDNS3_ENDPOINTS_MAX_COUNT; i++) {
-			priv_ep = priv_dev->eps[i];
-			if (!priv_ep)
-				continue;
-
-			if (priv_ep->flags & EP_CLAIMED)
-				cdns3_ep_config(priv_ep);
-		}
-
 		result = cdns3_ep0_delegate_req(priv_dev, ctrl_req);
 
-		if (result)
-			return result;
-
-		if (!config) {
-			cdns3_hw_reset_eps_config(priv_dev);
-			usb_gadget_set_state(&priv_dev->gadget,
-					     USB_STATE_ADDRESS);
-		}
+		if (result || !config)
+			goto reset_config;
 
 		break;
 	case USB_STATE_CONFIGURED:
 		result = cdns3_ep0_delegate_req(priv_dev, ctrl_req);
+		if (!config && !result)
+			goto reset_config;
 
-		if (!config && !result) {
-			cdns3_hw_reset_eps_config(priv_dev);
-			usb_gadget_set_state(&priv_dev->gadget,
-					     USB_STATE_ADDRESS);
-		}
 		break;
 	default:
-		result = -EINVAL;
+		return -EINVAL;
 	}
 
+	return 0;
+
+reset_config:
+	if (result != USB_GADGET_DELAYED_STATUS)
+		cdns3_hw_reset_eps_config(priv_dev);
+
+	usb_gadget_set_state(&priv_dev->gadget,
+			     USB_STATE_ADDRESS);
+
 	return result;
 }
 
@@ -705,6 +693,7 @@ static int cdns3_gadget_ep0_queue(struct usb_ep *ep,
 	unsigned long flags;
 	int ret = 0;
 	u8 zlp = 0;
+	int i;
 
 	spin_lock_irqsave(&priv_dev->lock, flags);
 	trace_cdns3_ep0_queue(priv_dev, request);
@@ -718,6 +707,17 @@ static int cdns3_gadget_ep0_queue(struct usb_ep *ep,
 	/* send STATUS stage. Should be called only for SET_CONFIGURATION */
 	if (priv_dev->ep0_stage == CDNS3_STATUS_STAGE) {
 		cdns3_select_ep(priv_dev, 0x00);
+
+		/*
+		 * Configure all non-control EPs which are not enabled by class driver
+		 */
+		for (i = 0; i < CDNS3_ENDPOINTS_MAX_COUNT; i++) {
+			priv_ep = priv_dev->eps[i];
+			if (priv_ep && priv_ep->flags & EP_CLAIMED &&
+			    !(priv_ep->flags & EP_ENABLED))
+				cdns3_ep_config(priv_ep, 0);
+		}
+
 		cdns3_set_hw_configuration(priv_dev);
 		cdns3_ep0_complete_setup(priv_dev, 0, 1);
 		request->actual = 0;
@@ -803,6 +803,7 @@ void cdns3_ep0_config(struct cdns3_device *priv_dev)
 	struct cdns3_usb_regs __iomem *regs;
 	struct cdns3_endpoint *priv_ep;
 	u32 max_packet_size = 64;
+	u32 ep_cfg;
 
 	regs = priv_dev->regs;
 
@@ -834,8 +835,10 @@ void cdns3_ep0_config(struct cdns3_device *priv_dev)
 				       BIT(0) | BIT(16));
 	}
 
-	writel(EP_CFG_ENABLE | EP_CFG_MAXPKTSIZE(max_packet_size),
-	       &regs->ep_cfg);
+	ep_cfg = EP_CFG_ENABLE | EP_CFG_MAXPKTSIZE(max_packet_size);
+
+	if (!(priv_ep->flags & EP_CONFIGURED))
+		writel(ep_cfg, &regs->ep_cfg);
 
 	writel(EP_STS_EN_SETUPEN | EP_STS_EN_DESCMISEN | EP_STS_EN_TRBERREN,
 	       &regs->ep_sts_en);
@@ -843,8 +846,10 @@ void cdns3_ep0_config(struct cdns3_device *priv_dev)
 	/* init ep in */
 	cdns3_select_ep(priv_dev, USB_DIR_IN);
 
-	writel(EP_CFG_ENABLE | EP_CFG_MAXPKTSIZE(max_packet_size),
-	       &regs->ep_cfg);
+	if (!(priv_ep->flags & EP_CONFIGURED))
+		writel(ep_cfg, &regs->ep_cfg);
+
+	priv_ep->flags |= EP_CONFIGURED;
 
 	writel(EP_STS_EN_SETUPEN | EP_STS_EN_TRBERREN, &regs->ep_sts_en);
 
diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 02a69e20014b..e0e1cb907ffd 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -296,6 +296,8 @@ static void cdns3_ep_stall_flush(struct cdns3_endpoint *priv_ep)
  */
 void cdns3_hw_reset_eps_config(struct cdns3_device *priv_dev)
 {
+	int i;
+
 	writel(USB_CONF_CFGRST, &priv_dev->regs->usb_conf);
 
 	cdns3_allow_enable_l1(priv_dev, 0);
@@ -304,6 +306,10 @@ void cdns3_hw_reset_eps_config(struct cdns3_device *priv_dev)
 	priv_dev->out_mem_is_allocated = 0;
 	priv_dev->wait_for_setup = 0;
 	priv_dev->using_streams = 0;
+
+	for (i = 0; i < CDNS3_ENDPOINTS_MAX_COUNT; i++)
+		if (priv_dev->eps[i])
+			priv_dev->eps[i]->flags &= ~EP_CONFIGURED;
 }
 
 /**
@@ -1907,27 +1913,6 @@ static int cdns3_ep_onchip_buffer_reserve(struct cdns3_device *priv_dev,
 	return 0;
 }
 
-static void cdns3_stream_ep_reconfig(struct cdns3_device *priv_dev,
-				     struct cdns3_endpoint *priv_ep)
-{
-	if (!priv_ep->use_streams || priv_dev->gadget.speed < USB_SPEED_SUPER)
-		return;
-
-	if (priv_dev->dev_ver >= DEV_VER_V3) {
-		u32 mask = BIT(priv_ep->num + (priv_ep->dir ? 16 : 0));
-
-		/*
-		 * Stream capable endpoints are handled by using ep_tdl
-		 * register. Other endpoints use TDL from TRB feature.
-		 */
-		cdns3_clear_register_bit(&priv_dev->regs->tdl_from_trb, mask);
-	}
-
-	/*  Enable Stream Bit TDL chk and SID chk */
-	cdns3_set_register_bit(&priv_dev->regs->ep_cfg, EP_CFG_STREAM_EN |
-			       EP_CFG_TDL_CHK | EP_CFG_SID_CHK);
-}
-
 static void cdns3_configure_dmult(struct cdns3_device *priv_dev,
 				  struct cdns3_endpoint *priv_ep)
 {
@@ -1965,8 +1950,9 @@ static void cdns3_configure_dmult(struct cdns3_device *priv_dev,
 /**
  * cdns3_ep_config Configure hardware endpoint
  * @priv_ep: extended endpoint object
+ * @enable: set EP_CFG_ENABLE bit in ep_cfg register.
  */
-void cdns3_ep_config(struct cdns3_endpoint *priv_ep)
+int cdns3_ep_config(struct cdns3_endpoint *priv_ep, bool enable)
 {
 	bool is_iso_ep = (priv_ep->type == USB_ENDPOINT_XFER_ISOC);
 	struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
@@ -2027,7 +2013,7 @@ void cdns3_ep_config(struct cdns3_endpoint *priv_ep)
 		break;
 	default:
 		/* all other speed are not supported */
-		return;
+		return -EINVAL;
 	}
 
 	if (max_packet_size == 1024)
@@ -2037,11 +2023,33 @@ void cdns3_ep_config(struct cdns3_endpoint *priv_ep)
 	else
 		priv_ep->trb_burst_size = 16;
 
-	ret = cdns3_ep_onchip_buffer_reserve(priv_dev, buffering + 1,
-					     !!priv_ep->dir);
-	if (ret) {
-		dev_err(priv_dev->dev, "onchip mem is full, ep is invalid\n");
-		return;
+	/* onchip buffer is only allocated before configuration */
+	if (!priv_dev->hw_configured_flag) {
+		ret = cdns3_ep_onchip_buffer_reserve(priv_dev, buffering + 1,
+						     !!priv_ep->dir);
+		if (ret) {
+			dev_err(priv_dev->dev, "onchip mem is full, ep is invalid\n");
+			return ret;
+		}
+	}
+
+	if (enable)
+		ep_cfg |= EP_CFG_ENABLE;
+
+	if (priv_ep->use_streams && priv_dev->gadget.speed >= USB_SPEED_SUPER) {
+		if (priv_dev->dev_ver >= DEV_VER_V3) {
+			u32 mask = BIT(priv_ep->num + (priv_ep->dir ? 16 : 0));
+
+			/*
+			 * Stream capable endpoints are handled by using ep_tdl
+			 * register. Other endpoints use TDL from TRB feature.
+			 */
+			cdns3_clear_register_bit(&priv_dev->regs->tdl_from_trb,
+						 mask);
+		}
+
+		/*  Enable Stream Bit TDL chk and SID chk */
+		ep_cfg |=  EP_CFG_STREAM_EN | EP_CFG_TDL_CHK | EP_CFG_SID_CHK;
 	}
 
 	ep_cfg |= EP_CFG_MAXPKTSIZE(max_packet_size) |
@@ -2051,9 +2059,12 @@ void cdns3_ep_config(struct cdns3_endpoint *priv_ep)
 
 	cdns3_select_ep(priv_dev, bEndpointAddress);
 	writel(ep_cfg, &priv_dev->regs->ep_cfg);
+	priv_ep->flags |= EP_CONFIGURED;
 
 	dev_dbg(priv_dev->dev, "Configure %s: with val %08x\n",
 		priv_ep->name, ep_cfg);
+
+	return 0;
 }
 
 /* Find correct direction for HW endpoint according to description */
@@ -2194,7 +2205,7 @@ static int cdns3_gadget_ep_enable(struct usb_ep *ep,
 	u32 bEndpointAddress;
 	unsigned long flags;
 	int enable = 1;
-	int ret;
+	int ret = 0;
 	int val;
 
 	priv_ep = ep_to_cdns3_ep(ep);
@@ -2233,6 +2244,17 @@ static int cdns3_gadget_ep_enable(struct usb_ep *ep,
 	bEndpointAddress = priv_ep->num | priv_ep->dir;
 	cdns3_select_ep(priv_dev, bEndpointAddress);
 
+	/*
+	 * For some versions of controller at some point during ISO OUT traffic
+	 * DMA reads Transfer Ring for the EP which has never got doorbell.
+	 * This issue was detected only on simulation, but to avoid this issue
+	 * driver add protection against it. To fix it driver enable ISO OUT
+	 * endpoint before setting DRBL. This special treatment of ISO OUT
+	 * endpoints are recommended by controller specification.
+	 */
+	if (priv_ep->type == USB_ENDPOINT_XFER_ISOC  && !priv_ep->dir)
+		enable = 0;
+
 	if (usb_ss_max_streams(comp_desc) && usb_endpoint_xfer_bulk(desc)) {
 		/*
 		 * Enable stream support (SS mode) related interrupts
@@ -2243,13 +2265,17 @@ static int cdns3_gadget_ep_enable(struct usb_ep *ep,
 				EP_STS_EN_SIDERREN | EP_STS_EN_MD_EXITEN |
 				EP_STS_EN_STREAMREN;
 			priv_ep->use_streams = true;
-			cdns3_stream_ep_reconfig(priv_dev, priv_ep);
+			ret = cdns3_ep_config(priv_ep, enable);
 			priv_dev->using_streams |= true;
 		}
+	} else {
+		ret = cdns3_ep_config(priv_ep, enable);
 	}
 
-	ret = cdns3_allocate_trb_pool(priv_ep);
+	if (ret)
+		goto exit;
 
+	ret = cdns3_allocate_trb_pool(priv_ep);
 	if (ret)
 		goto exit;
 
@@ -2279,20 +2305,6 @@ static int cdns3_gadget_ep_enable(struct usb_ep *ep,
 
 	writel(reg, &priv_dev->regs->ep_sts_en);
 
-	/*
-	 * For some versions of controller at some point during ISO OUT traffic
-	 * DMA reads Transfer Ring for the EP which has never got doorbell.
-	 * This issue was detected only on simulation, but to avoid this issue
-	 * driver add protection against it. To fix it driver enable ISO OUT
-	 * endpoint before setting DRBL. This special treatment of ISO OUT
-	 * endpoints are recommended by controller specification.
-	 */
-	if (priv_ep->type == USB_ENDPOINT_XFER_ISOC  && !priv_ep->dir)
-		enable = 0;
-
-	if (enable)
-		cdns3_set_register_bit(&priv_dev->regs->ep_cfg, EP_CFG_ENABLE);
-
 	ep->desc = desc;
 	priv_ep->flags &= ~(EP_PENDING_REQUEST | EP_STALLED | EP_STALL_PENDING |
 			    EP_QUIRK_ISO_OUT_EN | EP_QUIRK_EXTRA_BUF_EN);
diff --git a/drivers/usb/cdns3/gadget.h b/drivers/usb/cdns3/gadget.h
index 52765b098b9e..8212bddf6c8d 100644
--- a/drivers/usb/cdns3/gadget.h
+++ b/drivers/usb/cdns3/gadget.h
@@ -1154,6 +1154,7 @@ struct cdns3_endpoint {
 #define EP_QUIRK_EXTRA_BUF_DET	BIT(12)
 #define EP_QUIRK_EXTRA_BUF_EN	BIT(13)
 #define EP_TDLCHK_EN		BIT(15)
+#define EP_CONFIGURED		BIT(16)
 	u32			flags;
 
 	struct cdns3_request	*descmis_req;
@@ -1351,7 +1352,7 @@ void cdns3_gadget_giveback(struct cdns3_endpoint *priv_ep,
 int cdns3_init_ep0(struct cdns3_device *priv_dev,
 		   struct cdns3_endpoint *priv_ep);
 void cdns3_ep0_config(struct cdns3_device *priv_dev);
-void cdns3_ep_config(struct cdns3_endpoint *priv_ep);
+int cdns3_ep_config(struct cdns3_endpoint *priv_ep, bool enable);
 void cdns3_check_ep0_interrupt_proceed(struct cdns3_device *priv_dev, int dir);
 int __cdns3_gadget_wakeup(struct cdns3_device *priv_dev);
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 24d79eec6654..71664bfcf1bd 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -507,6 +507,7 @@ static void acm_read_bulk_callback(struct urb *urb)
 			"%s - cooling babbling device\n", __func__);
 		usb_mark_last_busy(acm->dev);
 		set_bit(rb->index, &acm->urbs_in_error_delay);
+		set_bit(ACM_ERROR_DELAY, &acm->flags);
 		cooldown = true;
 		break;
 	default:
@@ -532,7 +533,7 @@ static void acm_read_bulk_callback(struct urb *urb)
 
 	if (stopped || stalled || cooldown) {
 		if (stalled)
-			schedule_work(&acm->work);
+			schedule_delayed_work(&acm->dwork, 0);
 		else if (cooldown)
 			schedule_delayed_work(&acm->dwork, HZ / 2);
 		return;
@@ -562,13 +563,13 @@ static void acm_write_bulk(struct urb *urb)
 	acm_write_done(acm, wb);
 	spin_unlock_irqrestore(&acm->write_lock, flags);
 	set_bit(EVENT_TTY_WAKEUP, &acm->flags);
-	schedule_work(&acm->work);
+	schedule_delayed_work(&acm->dwork, 0);
 }
 
 static void acm_softint(struct work_struct *work)
 {
 	int i;
-	struct acm *acm = container_of(work, struct acm, work);
+	struct acm *acm = container_of(work, struct acm, dwork.work);
 
 	if (test_bit(EVENT_RX_STALL, &acm->flags)) {
 		smp_mb(); /* against acm_suspend() */
@@ -584,7 +585,7 @@ static void acm_softint(struct work_struct *work)
 	if (test_and_clear_bit(ACM_ERROR_DELAY, &acm->flags)) {
 		for (i = 0; i < acm->rx_buflimit; i++)
 			if (test_and_clear_bit(i, &acm->urbs_in_error_delay))
-					acm_submit_read_urb(acm, i, GFP_NOIO);
+				acm_submit_read_urb(acm, i, GFP_KERNEL);
 	}
 
 	if (test_and_clear_bit(EVENT_TTY_WAKEUP, &acm->flags))
@@ -1364,7 +1365,6 @@ static int acm_probe(struct usb_interface *intf,
 	acm->ctrlsize = ctrlsize;
 	acm->readsize = readsize;
 	acm->rx_buflimit = num_rx_buf;
-	INIT_WORK(&acm->work, acm_softint);
 	INIT_DELAYED_WORK(&acm->dwork, acm_softint);
 	init_waitqueue_head(&acm->wioctl);
 	spin_lock_init(&acm->write_lock);
@@ -1574,7 +1574,6 @@ static void acm_disconnect(struct usb_interface *intf)
 	}
 
 	acm_kill_urbs(acm);
-	cancel_work_sync(&acm->work);
 	cancel_delayed_work_sync(&acm->dwork);
 
 	tty_unregister_device(acm_tty_driver, acm->minor);
@@ -1617,7 +1616,6 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
 		return 0;
 
 	acm_kill_urbs(acm);
-	cancel_work_sync(&acm->work);
 	cancel_delayed_work_sync(&acm->dwork);
 	acm->urbs_in_error_delay = 0;
 
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index cd5e9d8ab237..b95ff769072e 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -112,8 +112,7 @@ struct acm {
 #		define ACM_ERROR_DELAY	3
 	unsigned long urbs_in_error_delay;		/* these need to be restarted after a delay */
 	struct usb_cdc_line_coding line;		/* bits, stop, parity */
-	struct work_struct work;			/* work queue entry for various purposes*/
-	struct delayed_work dwork;			/* for cool downs needed in error recovery */
+	struct delayed_work dwork;		        /* work queue entry for various purposes */
 	unsigned int ctrlin;				/* input control lines (DCD, DSR, RI, break, overruns) */
 	unsigned int ctrlout;				/* output control lines (DTR, RTS) */
 	struct async_icount iocount;			/* counters for control line changes */
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index b351962279e4..1b53dc923757 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -839,6 +839,22 @@ const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
 	return NULL;
 }
 
+bool usb_driver_applicable(struct usb_device *udev,
+			   struct usb_device_driver *udrv)
+{
+	if (udrv->id_table && udrv->match)
+		return usb_device_match_id(udev, udrv->id_table) != NULL &&
+		       udrv->match(udev);
+
+	if (udrv->id_table)
+		return usb_device_match_id(udev, udrv->id_table) != NULL;
+
+	if (udrv->match)
+		return udrv->match(udev);
+
+	return false;
+}
+
 static int usb_device_match(struct device *dev, struct device_driver *drv)
 {
 	/* devices and interfaces are handled separately */
@@ -853,17 +869,14 @@ static int usb_device_match(struct device *dev, struct device_driver *drv)
 		udev = to_usb_device(dev);
 		udrv = to_usb_device_driver(drv);
 
-		if (udrv->id_table)
-			return usb_device_match_id(udev, udrv->id_table) != NULL;
-
-		if (udrv->match)
-			return udrv->match(udev);
-
 		/* If the device driver under consideration does not have a
 		 * id_table or a match function, then let the driver's probe
 		 * function decide.
 		 */
-		return 1;
+		if (!udrv->id_table && !udrv->match)
+			return 1;
+
+		return usb_driver_applicable(udev, udrv);
 
 	} else if (is_usb_interface(dev)) {
 		struct usb_interface *intf;
@@ -941,8 +954,7 @@ static int __usb_bus_reprobe_drivers(struct device *dev, void *data)
 		return 0;
 
 	udev = to_usb_device(dev);
-	if (usb_device_match_id(udev, new_udriver->id_table) == NULL &&
-	    (!new_udriver->match || new_udriver->match(udev) == 0))
+	if (!usb_driver_applicable(udev, new_udriver))
 		return 0;
 
 	ret = device_reprobe(dev);
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 2b2f1ab6e36a..d87175fc8a98 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -205,9 +205,7 @@ static int __check_usb_generic(struct device_driver *drv, void *data)
 	udrv = to_usb_device_driver(drv);
 	if (udrv == &usb_generic_driver)
 		return 0;
-	if (usb_device_match_id(udev, udrv->id_table) != NULL)
-		return 1;
-	return (udrv->match && udrv->match(udev));
+	return usb_driver_applicable(udev, udrv);
 }
 
 static bool usb_generic_driver_match(struct usb_device *udev)
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 98e7d1ee63dc..0ebaf8a784f7 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -74,6 +74,8 @@ extern int usb_match_device(struct usb_device *dev,
 			    const struct usb_device_id *id);
 extern const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
 				const struct usb_device_id *id);
+extern bool usb_driver_applicable(struct usb_device *udev,
+				  struct usb_device_driver *udrv);
 extern void usb_forced_unbind_intf(struct usb_interface *intf);
 extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
 
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 2f9f4ad562d4..60b5a6940973 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -121,9 +121,6 @@ static void __dwc3_set_mode(struct work_struct *work)
 	int ret;
 	u32 reg;
 
-	if (dwc->dr_mode != USB_DR_MODE_OTG)
-		return;
-
 	pm_runtime_get_sync(dwc->dev);
 
 	if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_OTG)
@@ -209,6 +206,9 @@ void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
 {
 	unsigned long flags;
 
+	if (dwc->dr_mode != USB_DR_MODE_OTG)
+		return;
+
 	spin_lock_irqsave(&dwc->lock, flags);
 	dwc->desired_dr_role = mode;
 	spin_unlock_irqrestore(&dwc->lock, flags);
@@ -1564,6 +1564,17 @@ static int dwc3_probe(struct platform_device *pdev)
 
 err5:
 	dwc3_event_buffers_cleanup(dwc);
+
+	usb_phy_shutdown(dwc->usb2_phy);
+	usb_phy_shutdown(dwc->usb3_phy);
+	phy_exit(dwc->usb2_generic_phy);
+	phy_exit(dwc->usb3_generic_phy);
+
+	usb_phy_set_suspend(dwc->usb2_phy, 1);
+	usb_phy_set_suspend(dwc->usb3_phy, 1);
+	phy_power_off(dwc->usb2_generic_phy);
+	phy_power_off(dwc->usb3_generic_phy);
+
 	dwc3_ulpi_exit(dwc);
 
 err4:
@@ -1599,9 +1610,9 @@ static int dwc3_remove(struct platform_device *pdev)
 	dwc3_core_exit(dwc);
 	dwc3_ulpi_exit(dwc);
 
-	pm_runtime_put_sync(&pdev->dev);
-	pm_runtime_allow(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
 
 	dwc3_free_event_buffers(dwc);
 	dwc3_free_scratch_buffers(dwc);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index ba0f743f3552..6d843e6c2941 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -710,6 +710,7 @@ struct dwc3_ep {
 #define DWC3_EP_IGNORE_NEXT_NOSTREAM	BIT(8)
 #define DWC3_EP_FORCE_RESTART_STREAM	BIT(9)
 #define DWC3_EP_FIRST_STREAM_PRIMED	BIT(10)
+#define DWC3_EP_PENDING_CLEAR_STALL	BIT(11)
 
 	/* This last one is specific to EP0 */
 #define DWC3_EP0_DIR_IN		BIT(31)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index f5a61f57c74f..242b6210380a 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -147,7 +147,8 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc)
 
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		if (pdev->device == PCI_DEVICE_ID_INTEL_BXT ||
-				pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) {
+		    pdev->device == PCI_DEVICE_ID_INTEL_BXT_M ||
+		    pdev->device == PCI_DEVICE_ID_INTEL_EHLLP) {
 			guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid);
 			dwc->has_dsm_for_pm = true;
 		}
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 59f2e8c31bd1..cc816142eb95 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -524,6 +524,11 @@ static int dwc3_ep0_handle_endpoint(struct dwc3 *dwc,
 		ret = __dwc3_gadget_ep_set_halt(dep, set, true);
 		if (ret)
 			return -EINVAL;
+
+		/* ClearFeature(Halt) may need delayed status */
+		if (!set && (dep->flags & DWC3_EP_END_TRANSFER_PENDING))
+			return USB_GADGET_DELAYED_STATUS;
+
 		break;
 	default:
 		return -EINVAL;
@@ -942,12 +947,16 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
 static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		struct dwc3_ep *dep, struct dwc3_request *req)
 {
+	unsigned int		trb_length = 0;
 	int			ret;
 
 	req->direction = !!dep->number;
 
 	if (req->request.length == 0) {
-		dwc3_ep0_prepare_one_trb(dep, dwc->ep0_trb_addr, 0,
+		if (!req->direction)
+			trb_length = dep->endpoint.maxpacket;
+
+		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr, trb_length,
 				DWC3_TRBCTL_CONTROL_DATA, false);
 		ret = dwc3_ep0_start_trans(dep);
 	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
@@ -994,9 +1003,12 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 
 		req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];
 
+		if (!req->direction)
+			trb_length = dep->endpoint.maxpacket;
+
 		/* Now prepare one extra TRB to align transfer size */
 		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
-					 0, DWC3_TRBCTL_CONTROL_DATA,
+					 trb_length, DWC3_TRBCTL_CONTROL_DATA,
 					 false);
 		ret = dwc3_ep0_start_trans(dep);
 	} else {
@@ -1042,6 +1054,17 @@ static void dwc3_ep0_do_control_status(struct dwc3 *dwc,
 	__dwc3_ep0_do_control_status(dwc, dep);
 }
 
+void dwc3_ep0_send_delayed_status(struct dwc3 *dwc)
+{
+	unsigned int direction = !dwc->ep0_expect_in;
+
+	if (dwc->ep0state != EP0_STATUS_PHASE)
+		return;
+
+	dwc->delayed_status = false;
+	__dwc3_ep0_do_control_status(dwc, dwc->eps[direction]);
+}
+
 static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index c2a0f64f8d1e..e822ba03d3cc 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1095,6 +1095,8 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
 	struct scatterlist *s;
 	int		i;
 	unsigned int length = req->request.length;
+	unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
+	unsigned int rem = length % maxp;
 	unsigned int remaining = req->request.num_mapped_sgs
 		- req->num_queued_sgs;
 
@@ -1106,8 +1108,6 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
 		length -= sg_dma_len(s);
 
 	for_each_sg(sg, s, remaining, i) {
-		unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
-		unsigned int rem = length % maxp;
 		unsigned int trb_length;
 		unsigned chain = true;
 
@@ -1628,8 +1628,13 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 	if (dep->flags & DWC3_EP_WAIT_TRANSFER_COMPLETE)
 		return 0;
 
-	/* Start the transfer only after the END_TRANSFER is completed */
-	if (dep->flags & DWC3_EP_END_TRANSFER_PENDING) {
+	/*
+	 * Start the transfer only after the END_TRANSFER is completed
+	 * and endpoint STALL is cleared.
+	 */
+	if ((dep->flags & DWC3_EP_END_TRANSFER_PENDING) ||
+	    (dep->flags & DWC3_EP_WEDGE) ||
+	    (dep->flags & DWC3_EP_STALL)) {
 		dep->flags |= DWC3_EP_DELAY_START;
 		return 0;
 	}
@@ -1822,6 +1827,18 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
 			return 0;
 		}
 
+		dwc3_stop_active_transfer(dep, true, true);
+
+		list_for_each_entry_safe(req, tmp, &dep->started_list, list)
+			dwc3_gadget_move_cancelled_request(req);
+
+		if (dep->flags & DWC3_EP_END_TRANSFER_PENDING) {
+			dep->flags |= DWC3_EP_PENDING_CLEAR_STALL;
+			return 0;
+		}
+
+		dwc3_gadget_ep_cleanup_cancelled_requests(dep);
+
 		ret = dwc3_send_clear_stall_ep_cmd(dep);
 		if (ret) {
 			dev_err(dwc->dev, "failed to clear STALL on %s\n",
@@ -1831,18 +1848,11 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
 
 		dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE);
 
-		dwc3_stop_active_transfer(dep, true, true);
-
-		list_for_each_entry_safe(req, tmp, &dep->started_list, list)
-			dwc3_gadget_move_cancelled_request(req);
-
-		list_for_each_entry_safe(req, tmp, &dep->pending_list, list)
-			dwc3_gadget_move_cancelled_request(req);
+		if ((dep->flags & DWC3_EP_DELAY_START) &&
+		    !usb_endpoint_xfer_isoc(dep->endpoint.desc))
+			__dwc3_gadget_kick_transfer(dep);
 
-		if (!(dep->flags & DWC3_EP_END_TRANSFER_PENDING)) {
-			dep->flags &= ~DWC3_EP_DELAY_START;
-			dwc3_gadget_ep_cleanup_cancelled_requests(dep);
-		}
+		dep->flags &= ~DWC3_EP_DELAY_START;
 	}
 
 	return ret;
@@ -2732,6 +2742,11 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep,
 		ret = dwc3_gadget_ep_reclaim_trb_linear(dep, req, event,
 				status);
 
+	req->request.actual = req->request.length - req->remaining;
+
+	if (!dwc3_gadget_ep_request_completed(req))
+		goto out;
+
 	if (req->needs_extra_trb) {
 		unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
 
@@ -2747,11 +2762,6 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep,
 		req->needs_extra_trb = false;
 	}
 
-	req->request.actual = req->request.length - req->remaining;
-
-	if (!dwc3_gadget_ep_request_completed(req))
-		goto out;
-
 	dwc3_gadget_giveback(dep, req, status);
 
 out:
@@ -2997,6 +3007,26 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
 			dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING;
 			dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
 			dwc3_gadget_ep_cleanup_cancelled_requests(dep);
+
+			if (dep->flags & DWC3_EP_PENDING_CLEAR_STALL) {
+				struct dwc3 *dwc = dep->dwc;
+
+				dep->flags &= ~DWC3_EP_PENDING_CLEAR_STALL;
+				if (dwc3_send_clear_stall_ep_cmd(dep)) {
+					struct usb_ep *ep0 = &dwc->eps[0]->endpoint;
+
+					dev_err(dwc->dev, "failed to clear STALL on %s\n",
+						dep->name);
+					if (dwc->delayed_status)
+						__dwc3_gadget_ep0_set_halt(ep0, 1);
+					return;
+				}
+
+				dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE);
+				if (dwc->delayed_status)
+					dwc3_ep0_send_delayed_status(dwc);
+			}
+
 			if ((dep->flags & DWC3_EP_DELAY_START) &&
 			    !usb_endpoint_xfer_isoc(dep->endpoint.desc))
 				__dwc3_gadget_kick_transfer(dep);
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index bd85eb7fa9ef..a7791cb827c4 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -113,6 +113,7 @@ int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
 int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
 		gfp_t gfp_flags);
 int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
+void dwc3_ep0_send_delayed_status(struct dwc3 *dwc);
 
 /**
  * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index e077b2ca53c5..869d9c4de5fc 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -479,8 +479,8 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	u_phy->otg->host = hcd_to_bus(hcd);
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
-		err = -ENODEV;
+	if (irq < 0) {
+		err = irq;
 		goto cleanup_phy;
 	}
 
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index ae8f60f6e6a5..44a7e58a26e3 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -94,10 +94,13 @@ static struct platform_device *fsl_usb2_device_register(
 
 	pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
 
-	if (!pdev->dev.dma_mask)
+	if (!pdev->dev.dma_mask) {
 		pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
-	else
-		dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+	} else {
+		retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		if (retval)
+			goto error;
+	}
 
 	retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
 	if (retval)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 3feaafebfe58..90a1a750c150 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -22,6 +22,8 @@
 #define SSIC_PORT_CFG2_OFFSET	0x30
 #define PROG_DONE		(1 << 30)
 #define SSIC_PORT_UNUSED	(1 << 31)
+#define SPARSE_DISABLE_BIT	17
+#define SPARSE_CNTL_ENABLE	0xC12C
 
 /* Device for a quirk */
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
@@ -160,6 +162,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	    (pdev->device == 0x15e0 || pdev->device == 0x15e1))
 		xhci->quirks |= XHCI_SNPS_BROKEN_SUSPEND;
 
+	if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x15e5)
+		xhci->quirks |= XHCI_DISABLE_SPARSE;
+
 	if (pdev->vendor == PCI_VENDOR_ID_AMD)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
@@ -490,6 +495,15 @@ static void xhci_pme_quirk(struct usb_hcd *hcd)
 	readl(reg);
 }
 
+static void xhci_sparse_control_quirk(struct usb_hcd *hcd)
+{
+	u32 reg;
+
+	reg = readl(hcd->regs + SPARSE_CNTL_ENABLE);
+	reg &= ~BIT(SPARSE_DISABLE_BIT);
+	writel(reg, hcd->regs + SPARSE_CNTL_ENABLE);
+}
+
 static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
@@ -509,6 +523,9 @@ static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	if (xhci->quirks & XHCI_SSIC_PORT_UNUSED)
 		xhci_ssic_port_unused_quirk(hcd, true);
 
+	if (xhci->quirks & XHCI_DISABLE_SPARSE)
+		xhci_sparse_control_quirk(hcd);
+
 	ret = xhci_suspend(xhci, do_wakeup);
 	if (ret && (xhci->quirks & XHCI_SSIC_PORT_UNUSED))
 		xhci_ssic_port_unused_quirk(hcd, false);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index e534f524b7f8..e88f4f953995 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -982,12 +982,15 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
 			xhci->shared_hcd->state != HC_STATE_SUSPENDED)
 		return -EINVAL;
 
-	xhci_dbc_suspend(xhci);
-
 	/* Clear root port wake on bits if wakeup not allowed. */
 	if (!do_wakeup)
 		xhci_disable_port_wake_on_bits(xhci);
 
+	if (!HCD_HW_ACCESSIBLE(hcd))
+		return 0;
+
+	xhci_dbc_suspend(xhci);
+
 	/* Don't poll the roothubs on bus suspend. */
 	xhci_dbg(xhci, "%s: stopping port polling.\n", __func__);
 	clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ea1754f185a2..564945eae502 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1874,6 +1874,7 @@ struct xhci_hcd {
 #define XHCI_RESET_PLL_ON_DISCONNECT	BIT_ULL(34)
 #define XHCI_SNPS_BROKEN_SUSPEND    BIT_ULL(35)
 #define XHCI_RENESAS_FW_QUIRK	BIT_ULL(36)
+#define XHCI_DISABLE_SPARSE	BIT_ULL(38)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index a7eefe11f31a..45a387979935 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -209,6 +209,7 @@ static void adu_interrupt_out_callback(struct urb *urb)
 
 	if (status != 0) {
 		if ((status != -ENOENT) &&
+		    (status != -ESHUTDOWN) &&
 		    (status != -ECONNRESET)) {
 			dev_dbg(&dev->udev->dev,
 				"%s :nonzero status received: %d\n", __func__,
diff --git a/drivers/usb/misc/apple-mfi-fastcharge.c b/drivers/usb/misc/apple-mfi-fastcharge.c
index b403094a6b3a..579d8c84de42 100644
--- a/drivers/usb/misc/apple-mfi-fastcharge.c
+++ b/drivers/usb/misc/apple-mfi-fastcharge.c
@@ -163,17 +163,23 @@ static const struct power_supply_desc apple_mfi_fc_desc = {
 	.property_is_writeable  = apple_mfi_fc_property_is_writeable
 };
 
+static bool mfi_fc_match(struct usb_device *udev)
+{
+	int idProduct;
+
+	idProduct = le16_to_cpu(udev->descriptor.idProduct);
+	/* See comment above mfi_fc_id_table[] */
+	return (idProduct >= 0x1200 && idProduct <= 0x12ff);
+}
+
 static int mfi_fc_probe(struct usb_device *udev)
 {
 	struct power_supply_config battery_cfg = {};
 	struct mfi_device *mfi = NULL;
-	int err, idProduct;
+	int err;
 
-	idProduct = le16_to_cpu(udev->descriptor.idProduct);
-	/* See comment above mfi_fc_id_table[] */
-	if (idProduct < 0x1200 || idProduct > 0x12ff) {
+	if (!mfi_fc_match(udev))
 		return -ENODEV;
-	}
 
 	mfi = kzalloc(sizeof(struct mfi_device), GFP_KERNEL);
 	if (!mfi) {
@@ -220,6 +226,7 @@ static struct usb_device_driver mfi_fc_driver = {
 	.probe =	mfi_fc_probe,
 	.disconnect =	mfi_fc_disconnect,
 	.id_table =	mfi_fc_id_table,
+	.match =	mfi_fc_match,
 	.generic_subclass = 1,
 };
 
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index a48e3f90d196..af1b02f3e35f 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -2789,6 +2789,9 @@ static void tcpm_reset_port(struct tcpm_port *port)
 
 static void tcpm_detach(struct tcpm_port *port)
 {
+	if (tcpm_port_is_disconnected(port))
+		port->hard_reset_count = 0;
+
 	if (!port->attached)
 		return;
 
@@ -2797,9 +2800,6 @@ static void tcpm_detach(struct tcpm_port *port)
 		port->tcpc->set_bist_data(port->tcpc, false);
 	}
 
-	if (tcpm_port_is_disconnected(port))
-		port->hard_reset_count = 0;
-
 	tcpm_reset_port(port);
 }
 
@@ -3573,7 +3573,7 @@ static void run_state_machine(struct tcpm_port *port)
 		 */
 		tcpm_set_pwr_role(port, TYPEC_SOURCE);
 		tcpm_pd_send_control(port, PD_CTRL_PS_RDY);
-		tcpm_set_state(port, SRC_STARTUP, 0);
+		tcpm_set_state(port, SRC_STARTUP, PD_T_SWAP_SRC_START);
 		break;
 
 	case VCONN_SWAP_ACCEPT:
diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c
index ef1c550f8266..4b6195666c58 100644
--- a/drivers/vdpa/mlx5/core/mr.c
+++ b/drivers/vdpa/mlx5/core/mr.c
@@ -239,7 +239,6 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr
 	u64 paend;
 	struct scatterlist *sg;
 	struct device *dma = mvdev->mdev->device;
-	int ret;
 
 	for (map = vhost_iotlb_itree_first(iotlb, mr->start, mr->end - 1);
 	     map; map = vhost_iotlb_itree_next(map, start, mr->end - 1)) {
@@ -277,8 +276,8 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr
 done:
 	mr->log_size = log_entity_size;
 	mr->nsg = nsg;
-	ret = dma_map_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0);
-	if (!ret)
+	err = dma_map_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0);
+	if (!err)
 		goto err_map;
 
 	err = create_direct_mr(mvdev, mr);
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 62d640327145..995a13244d9c 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -60,7 +60,8 @@ struct vdpasim_virtqueue {
 
 static u64 vdpasim_features = (1ULL << VIRTIO_F_ANY_LAYOUT) |
 			      (1ULL << VIRTIO_F_VERSION_1)  |
-			      (1ULL << VIRTIO_F_ACCESS_PLATFORM);
+			      (1ULL << VIRTIO_F_ACCESS_PLATFORM) |
+			      (1ULL << VIRTIO_NET_F_MAC);
 
 /* State of each vdpasim device */
 struct vdpasim {
@@ -361,7 +362,9 @@ static struct vdpasim *vdpasim_create(void)
 	spin_lock_init(&vdpasim->iommu_lock);
 
 	dev = &vdpasim->vdpa.dev;
-	dev->coherent_dma_mask = DMA_BIT_MASK(64);
+	dev->dma_mask = &dev->coherent_dma_mask;
+	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
+		goto err_iommu;
 	set_dma_ops(dev, &vdpasim_dma_ops);
 
 	vdpasim->iommu = vhost_iotlb_alloc(2048, 0);
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 62a9bb0efc55..676175bd9a67 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -428,12 +428,11 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
 	void __user *argp = (void __user *)arg;
 	u64 __user *featurep = argp;
 	u64 features;
-	long r;
+	long r = 0;
 
 	if (cmd == VHOST_SET_BACKEND_FEATURES) {
-		r = copy_from_user(&features, featurep, sizeof(features));
-		if (r)
-			return r;
+		if (copy_from_user(&features, featurep, sizeof(features)))
+			return -EFAULT;
 		if (features & ~VHOST_VDPA_BACKEND_FEATURES)
 			return -EOPNOTSUPP;
 		vhost_set_backend_features(&v->vdev, features);
@@ -476,7 +475,8 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
 		break;
 	case VHOST_GET_BACKEND_FEATURES:
 		features = VHOST_VDPA_BACKEND_FEATURES;
-		r = copy_to_user(featurep, &features, sizeof(features));
+		if (copy_to_user(featurep, &features, sizeof(features)))
+			r = -EFAULT;
 		break;
 	default:
 		r = vhost_dev_ioctl(&v->vdev, cmd, argp);
@@ -595,19 +595,21 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v,
 	struct vhost_dev *dev = &v->vdev;
 	struct vhost_iotlb *iotlb = dev->iotlb;
 	struct page **page_list;
-	struct vm_area_struct **vmas;
+	unsigned long list_size = PAGE_SIZE / sizeof(struct page *);
 	unsigned int gup_flags = FOLL_LONGTERM;
-	unsigned long map_pfn, last_pfn = 0;
-	unsigned long npages, lock_limit;
-	unsigned long i, nmap = 0;
+	unsigned long npages, cur_base, map_pfn, last_pfn = 0;
+	unsigned long locked, lock_limit, pinned, i;
 	u64 iova = msg->iova;
-	long pinned;
 	int ret = 0;
 
 	if (vhost_iotlb_itree_first(iotlb, msg->iova,
 				    msg->iova + msg->size - 1))
 		return -EEXIST;
 
+	page_list = (struct page **) __get_free_page(GFP_KERNEL);
+	if (!page_list)
+		return -ENOMEM;
+
 	if (msg->perm & VHOST_ACCESS_WO)
 		gup_flags |= FOLL_WRITE;
 
@@ -615,86 +617,61 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v,
 	if (!npages)
 		return -EINVAL;
 
-	page_list = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
-	vmas = kvmalloc_array(npages, sizeof(struct vm_area_struct *),
-			      GFP_KERNEL);
-	if (!page_list || !vmas) {
-		ret = -ENOMEM;
-		goto free;
-	}
-
 	mmap_read_lock(dev->mm);
 
+	locked = atomic64_add_return(npages, &dev->mm->pinned_vm);
 	lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
-	if (npages + atomic64_read(&dev->mm->pinned_vm) > lock_limit) {
-		ret = -ENOMEM;
-		goto unlock;
-	}
 
-	pinned = pin_user_pages(msg->uaddr & PAGE_MASK, npages, gup_flags,
-				page_list, vmas);
-	if (npages != pinned) {
-		if (pinned < 0) {
-			ret = pinned;
-		} else {
-			unpin_user_pages(page_list, pinned);
-			ret = -ENOMEM;
-		}
-		goto unlock;
+	if (locked > lock_limit) {
+		ret = -ENOMEM;
+		goto out;
 	}
 
+	cur_base = msg->uaddr & PAGE_MASK;
 	iova &= PAGE_MASK;
-	map_pfn = page_to_pfn(page_list[0]);
-
-	/* One more iteration to avoid extra vdpa_map() call out of loop. */
-	for (i = 0; i <= npages; i++) {
-		unsigned long this_pfn;
-		u64 csize;
-
-		/* The last chunk may have no valid PFN next to it */
-		this_pfn = i < npages ? page_to_pfn(page_list[i]) : -1UL;
-
-		if (last_pfn && (this_pfn == -1UL ||
-				 this_pfn != last_pfn + 1)) {
-			/* Pin a contiguous chunk of memory */
-			csize = last_pfn - map_pfn + 1;
-			ret = vhost_vdpa_map(v, iova, csize << PAGE_SHIFT,
-					     map_pfn << PAGE_SHIFT,
-					     msg->perm);
-			if (ret) {
-				/*
-				 * Unpin the rest chunks of memory on the
-				 * flight with no corresponding vdpa_map()
-				 * calls having been made yet. On the other
-				 * hand, vdpa_unmap() in the failure path
-				 * is in charge of accounting the number of
-				 * pinned pages for its own.
-				 * This asymmetrical pattern of accounting
-				 * is for efficiency to pin all pages at
-				 * once, while there is no other callsite
-				 * of vdpa_map() than here above.
-				 */
-				unpin_user_pages(&page_list[nmap],
-						 npages - nmap);
-				goto out;
+
+	while (npages) {
+		pinned = min_t(unsigned long, npages, list_size);
+		ret = pin_user_pages(cur_base, pinned,
+				     gup_flags, page_list, NULL);
+		if (ret != pinned)
+			goto out;
+
+		if (!last_pfn)
+			map_pfn = page_to_pfn(page_list[0]);
+
+		for (i = 0; i < ret; i++) {
+			unsigned long this_pfn = page_to_pfn(page_list[i]);
+			u64 csize;
+
+			if (last_pfn && (this_pfn != last_pfn + 1)) {
+				/* Pin a contiguous chunk of memory */
+				csize = (last_pfn - map_pfn + 1) << PAGE_SHIFT;
+				if (vhost_vdpa_map(v, iova, csize,
+						   map_pfn << PAGE_SHIFT,
+						   msg->perm))
+					goto out;
+				map_pfn = this_pfn;
+				iova += csize;
 			}
-			atomic64_add(csize, &dev->mm->pinned_vm);
-			nmap += csize;
-			iova += csize << PAGE_SHIFT;
-			map_pfn = this_pfn;
+
+			last_pfn = this_pfn;
 		}
-		last_pfn = this_pfn;
+
+		cur_base += ret << PAGE_SHIFT;
+		npages -= ret;
 	}
 
-	WARN_ON(nmap != npages);
+	/* Pin the rest chunk */
+	ret = vhost_vdpa_map(v, iova, (last_pfn - map_pfn + 1) << PAGE_SHIFT,
+			     map_pfn << PAGE_SHIFT, msg->perm);
 out:
-	if (ret)
+	if (ret) {
 		vhost_vdpa_unmap(v, msg->iova, msg->size);
-unlock:
+		atomic64_sub(npages, &dev->mm->pinned_vm);
+	}
 	mmap_read_unlock(dev->mm);
-free:
-	kvfree(vmas);
-	kvfree(page_list);
+	free_page((unsigned long)page_list);
 	return ret;
 }
 
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index e059a9a47cdf..8bd8b403f087 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -284,13 +284,14 @@ __vringh_iov(struct vringh *vrh, u16 i,
 	desc_max = vrh->vring.num;
 	up_next = -1;
 
+	/* You must want something! */
+	if (WARN_ON(!riov && !wiov))
+		return -EINVAL;
+
 	if (riov)
 		riov->i = riov->used = 0;
-	else if (wiov)
+	if (wiov)
 		wiov->i = wiov->used = 0;
-	else
-		/* You must want something! */
-		BUG();
 
 	for (;;) {
 		void *addr;
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 2d9f69b93392..f4add36cb5f4 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -1028,6 +1028,8 @@ static int __init pvr2fb_setup(char *options)
 	if (!options || !*options)
 		return 0;
 
+	cable_arg[0] = output_arg[0] = 0;
+
 	while ((this_opt = strsep(&options, ","))) {
 		if (!*this_opt)
 			continue;
diff --git a/drivers/w1/masters/mxc_w1.c b/drivers/w1/masters/mxc_w1.c
index 1ca880e01476..090cbbf9e1e2 100644
--- a/drivers/w1/masters/mxc_w1.c
+++ b/drivers/w1/masters/mxc_w1.c
@@ -7,7 +7,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <linux/jiffies.h>
+#include <linux/ktime.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
@@ -40,12 +40,12 @@ struct mxc_w1_device {
 static u8 mxc_w1_ds2_reset_bus(void *data)
 {
 	struct mxc_w1_device *dev = data;
-	unsigned long timeout;
+	ktime_t timeout;
 
 	writeb(MXC_W1_CONTROL_RPP, dev->regs + MXC_W1_CONTROL);
 
 	/* Wait for reset sequence 511+512us, use 1500us for sure */
-	timeout = jiffies + usecs_to_jiffies(1500);
+	timeout = ktime_add_us(ktime_get(), 1500);
 
 	udelay(511 + 512);
 
@@ -55,7 +55,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
 		/* PST bit is valid after the RPP bit is self-cleared */
 		if (!(ctrl & MXC_W1_CONTROL_RPP))
 			return !(ctrl & MXC_W1_CONTROL_PST);
-	} while (time_is_after_jiffies(timeout));
+	} while (ktime_before(ktime_get(), timeout));
 
 	return 1;
 }
@@ -68,12 +68,12 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
 static u8 mxc_w1_ds2_touch_bit(void *data, u8 bit)
 {
 	struct mxc_w1_device *dev = data;
-	unsigned long timeout;
+	ktime_t timeout;
 
 	writeb(MXC_W1_CONTROL_WR(bit), dev->regs + MXC_W1_CONTROL);
 
 	/* Wait for read/write bit (60us, Max 120us), use 200us for sure */
-	timeout = jiffies + usecs_to_jiffies(200);
+	timeout = ktime_add_us(ktime_get(), 200);
 
 	udelay(60);
 
@@ -83,7 +83,7 @@ static u8 mxc_w1_ds2_touch_bit(void *data, u8 bit)
 		/* RDST bit is valid after the WR1/RD bit is self-cleared */
 		if (!(ctrl & MXC_W1_CONTROL_WR(bit)))
 			return !!(ctrl & MXC_W1_CONTROL_RDST);
-	} while (time_is_after_jiffies(timeout));
+	} while (ktime_before(ktime_get(), timeout));
 
 	return 0;
 }
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 57187efeb86f..f0c94ea51c3e 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -231,6 +231,8 @@ static int rdc321x_wdt_probe(struct platform_device *pdev)
 
 	rdc321x_wdt_device.sb_pdev = pdata->sb_pdev;
 	rdc321x_wdt_device.base_reg = r->start;
+	rdc321x_wdt_device.queue = 0;
+	rdc321x_wdt_device.default_ticks = ticks;
 
 	err = misc_register(&rdc321x_wdt_misc);
 	if (err < 0) {
@@ -245,14 +247,11 @@ static int rdc321x_wdt_probe(struct platform_device *pdev)
 				rdc321x_wdt_device.base_reg, RDC_WDT_RST);
 
 	init_completion(&rdc321x_wdt_device.stop);
-	rdc321x_wdt_device.queue = 0;
 
 	clear_bit(0, &rdc321x_wdt_device.inuse);
 
 	timer_setup(&rdc321x_wdt_device.timer, rdc321x_wdt_trigger, 0);
 
-	rdc321x_wdt_device.default_ticks = ticks;
-
 	dev_info(&pdev->dev, "watchdog init success\n");
 
 	return 0;
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c
index 64df919a2111..fe5ad0e89cd8 100644
--- a/drivers/xen/events/events_2l.c
+++ b/drivers/xen/events/events_2l.c
@@ -91,6 +91,8 @@ static void evtchn_2l_unmask(evtchn_port_t port)
 
 	BUG_ON(!irqs_disabled());
 
+	smp_wmb();	/* All writes before unmask must be visible. */
+
 	if (unlikely((cpu != cpu_from_evtchn(port))))
 		do_hypercall = 1;
 	else {
@@ -159,7 +161,7 @@ static inline xen_ulong_t active_evtchns(unsigned int cpu,
  * a bitset of words which contain pending event bits.  The second
  * level is a bitset of pending events themselves.
  */
-static void evtchn_2l_handle_events(unsigned cpu)
+static void evtchn_2l_handle_events(unsigned cpu, struct evtchn_loop_ctrl *ctrl)
 {
 	int irq;
 	xen_ulong_t pending_words;
@@ -240,10 +242,7 @@ static void evtchn_2l_handle_events(unsigned cpu)
 
 			/* Process port. */
 			port = (word_idx * BITS_PER_EVTCHN_WORD) + bit_idx;
-			irq = get_evtchn_to_irq(port);
-
-			if (irq != -1)
-				generic_handle_irq(irq);
+			handle_irq_for_port(port, ctrl);
 
 			bit_idx = (bit_idx + 1) % BITS_PER_EVTCHN_WORD;
 
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 6f02c18fa65c..cc317739e786 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -33,6 +33,10 @@
 #include <linux/slab.h>
 #include <linux/irqnr.h>
 #include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/cpuhotplug.h>
+#include <linux/atomic.h>
+#include <linux/ktime.h>
 
 #ifdef CONFIG_X86
 #include <asm/desc.h>
@@ -63,6 +67,15 @@
 
 #include "events_internal.h"
 
+#undef MODULE_PARAM_PREFIX
+#define MODULE_PARAM_PREFIX "xen."
+
+static uint __read_mostly event_loop_timeout = 2;
+module_param(event_loop_timeout, uint, 0644);
+
+static uint __read_mostly event_eoi_delay = 10;
+module_param(event_eoi_delay, uint, 0644);
+
 const struct evtchn_ops *evtchn_ops;
 
 /*
@@ -71,6 +84,24 @@ const struct evtchn_ops *evtchn_ops;
  */
 static DEFINE_MUTEX(irq_mapping_update_lock);
 
+/*
+ * Lock protecting event handling loop against removing event channels.
+ * Adding of event channels is no issue as the associated IRQ becomes active
+ * only after everything is setup (before request_[threaded_]irq() the handler
+ * can't be entered for an event, as the event channel will be unmasked only
+ * then).
+ */
+static DEFINE_RWLOCK(evtchn_rwlock);
+
+/*
+ * Lock hierarchy:
+ *
+ * irq_mapping_update_lock
+ *   evtchn_rwlock
+ *     IRQ-desc lock
+ *       percpu eoi_list_lock
+ */
+
 static LIST_HEAD(xen_irq_list_head);
 
 /* IRQ <-> VIRQ mapping. */
@@ -95,17 +126,20 @@ static bool (*pirq_needs_eoi)(unsigned irq);
 static struct irq_info *legacy_info_ptrs[NR_IRQS_LEGACY];
 
 static struct irq_chip xen_dynamic_chip;
+static struct irq_chip xen_lateeoi_chip;
 static struct irq_chip xen_percpu_chip;
 static struct irq_chip xen_pirq_chip;
 static void enable_dynirq(struct irq_data *data);
 static void disable_dynirq(struct irq_data *data);
 
+static DEFINE_PER_CPU(unsigned int, irq_epoch);
+
 static void clear_evtchn_to_irq_row(unsigned row)
 {
 	unsigned col;
 
 	for (col = 0; col < EVTCHN_PER_ROW; col++)
-		evtchn_to_irq[row][col] = -1;
+		WRITE_ONCE(evtchn_to_irq[row][col], -1);
 }
 
 static void clear_evtchn_to_irq_all(void)
@@ -142,7 +176,7 @@ static int set_evtchn_to_irq(evtchn_port_t evtchn, unsigned int irq)
 		clear_evtchn_to_irq_row(row);
 	}
 
-	evtchn_to_irq[row][col] = irq;
+	WRITE_ONCE(evtchn_to_irq[row][col], irq);
 	return 0;
 }
 
@@ -152,7 +186,7 @@ int get_evtchn_to_irq(evtchn_port_t evtchn)
 		return -1;
 	if (evtchn_to_irq[EVTCHN_ROW(evtchn)] == NULL)
 		return -1;
-	return evtchn_to_irq[EVTCHN_ROW(evtchn)][EVTCHN_COL(evtchn)];
+	return READ_ONCE(evtchn_to_irq[EVTCHN_ROW(evtchn)][EVTCHN_COL(evtchn)]);
 }
 
 /* Get info for IRQ */
@@ -261,10 +295,14 @@ static void xen_irq_info_cleanup(struct irq_info *info)
  */
 evtchn_port_t evtchn_from_irq(unsigned irq)
 {
-	if (WARN(irq >= nr_irqs, "Invalid irq %d!\n", irq))
+	const struct irq_info *info = NULL;
+
+	if (likely(irq < nr_irqs))
+		info = info_for_irq(irq);
+	if (!info)
 		return 0;
 
-	return info_for_irq(irq)->evtchn;
+	return info->evtchn;
 }
 
 unsigned int irq_from_evtchn(evtchn_port_t evtchn)
@@ -375,9 +413,157 @@ void notify_remote_via_irq(int irq)
 }
 EXPORT_SYMBOL_GPL(notify_remote_via_irq);
 
+struct lateeoi_work {
+	struct delayed_work delayed;
+	spinlock_t eoi_list_lock;
+	struct list_head eoi_list;
+};
+
+static DEFINE_PER_CPU(struct lateeoi_work, lateeoi);
+
+static void lateeoi_list_del(struct irq_info *info)
+{
+	struct lateeoi_work *eoi = &per_cpu(lateeoi, info->eoi_cpu);
+	unsigned long flags;
+
+	spin_lock_irqsave(&eoi->eoi_list_lock, flags);
+	list_del_init(&info->eoi_list);
+	spin_unlock_irqrestore(&eoi->eoi_list_lock, flags);
+}
+
+static void lateeoi_list_add(struct irq_info *info)
+{
+	struct lateeoi_work *eoi = &per_cpu(lateeoi, info->eoi_cpu);
+	struct irq_info *elem;
+	u64 now = get_jiffies_64();
+	unsigned long delay;
+	unsigned long flags;
+
+	if (now < info->eoi_time)
+		delay = info->eoi_time - now;
+	else
+		delay = 1;
+
+	spin_lock_irqsave(&eoi->eoi_list_lock, flags);
+
+	if (list_empty(&eoi->eoi_list)) {
+		list_add(&info->eoi_list, &eoi->eoi_list);
+		mod_delayed_work_on(info->eoi_cpu, system_wq,
+				    &eoi->delayed, delay);
+	} else {
+		list_for_each_entry_reverse(elem, &eoi->eoi_list, eoi_list) {
+			if (elem->eoi_time <= info->eoi_time)
+				break;
+		}
+		list_add(&info->eoi_list, &elem->eoi_list);
+	}
+
+	spin_unlock_irqrestore(&eoi->eoi_list_lock, flags);
+}
+
+static void xen_irq_lateeoi_locked(struct irq_info *info, bool spurious)
+{
+	evtchn_port_t evtchn;
+	unsigned int cpu;
+	unsigned int delay = 0;
+
+	evtchn = info->evtchn;
+	if (!VALID_EVTCHN(evtchn) || !list_empty(&info->eoi_list))
+		return;
+
+	if (spurious) {
+		if ((1 << info->spurious_cnt) < (HZ << 2))
+			info->spurious_cnt++;
+		if (info->spurious_cnt > 1) {
+			delay = 1 << (info->spurious_cnt - 2);
+			if (delay > HZ)
+				delay = HZ;
+			if (!info->eoi_time)
+				info->eoi_cpu = smp_processor_id();
+			info->eoi_time = get_jiffies_64() + delay;
+		}
+	} else {
+		info->spurious_cnt = 0;
+	}
+
+	cpu = info->eoi_cpu;
+	if (info->eoi_time &&
+	    (info->irq_epoch == per_cpu(irq_epoch, cpu) || delay)) {
+		lateeoi_list_add(info);
+		return;
+	}
+
+	info->eoi_time = 0;
+	unmask_evtchn(evtchn);
+}
+
+static void xen_irq_lateeoi_worker(struct work_struct *work)
+{
+	struct lateeoi_work *eoi;
+	struct irq_info *info;
+	u64 now = get_jiffies_64();
+	unsigned long flags;
+
+	eoi = container_of(to_delayed_work(work), struct lateeoi_work, delayed);
+
+	read_lock_irqsave(&evtchn_rwlock, flags);
+
+	while (true) {
+		spin_lock(&eoi->eoi_list_lock);
+
+		info = list_first_entry_or_null(&eoi->eoi_list, struct irq_info,
+						eoi_list);
+
+		if (info == NULL || now < info->eoi_time) {
+			spin_unlock(&eoi->eoi_list_lock);
+			break;
+		}
+
+		list_del_init(&info->eoi_list);
+
+		spin_unlock(&eoi->eoi_list_lock);
+
+		info->eoi_time = 0;
+
+		xen_irq_lateeoi_locked(info, false);
+	}
+
+	if (info)
+		mod_delayed_work_on(info->eoi_cpu, system_wq,
+				    &eoi->delayed, info->eoi_time - now);
+
+	read_unlock_irqrestore(&evtchn_rwlock, flags);
+}
+
+static void xen_cpu_init_eoi(unsigned int cpu)
+{
+	struct lateeoi_work *eoi = &per_cpu(lateeoi, cpu);
+
+	INIT_DELAYED_WORK(&eoi->delayed, xen_irq_lateeoi_worker);
+	spin_lock_init(&eoi->eoi_list_lock);
+	INIT_LIST_HEAD(&eoi->eoi_list);
+}
+
+void xen_irq_lateeoi(unsigned int irq, unsigned int eoi_flags)
+{
+	struct irq_info *info;
+	unsigned long flags;
+
+	read_lock_irqsave(&evtchn_rwlock, flags);
+
+	info = info_for_irq(irq);
+
+	if (info)
+		xen_irq_lateeoi_locked(info, eoi_flags & XEN_EOI_FLAG_SPURIOUS);
+
+	read_unlock_irqrestore(&evtchn_rwlock, flags);
+}
+EXPORT_SYMBOL_GPL(xen_irq_lateeoi);
+
 static void xen_irq_init(unsigned irq)
 {
 	struct irq_info *info;
+
 #ifdef CONFIG_SMP
 	/* By default all event channels notify CPU#0. */
 	cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(0));
@@ -392,6 +578,7 @@ static void xen_irq_init(unsigned irq)
 
 	set_info_for_irq(irq, info);
 
+	INIT_LIST_HEAD(&info->eoi_list);
 	list_add_tail(&info->list, &xen_irq_list_head);
 }
 
@@ -440,16 +627,24 @@ static int __must_check xen_allocate_irq_gsi(unsigned gsi)
 static void xen_free_irq(unsigned irq)
 {
 	struct irq_info *info = info_for_irq(irq);
+	unsigned long flags;
 
 	if (WARN_ON(!info))
 		return;
 
+	write_lock_irqsave(&evtchn_rwlock, flags);
+
+	if (!list_empty(&info->eoi_list))
+		lateeoi_list_del(info);
+
 	list_del(&info->list);
 
 	set_info_for_irq(irq, NULL);
 
 	WARN_ON(info->refcnt > 0);
 
+	write_unlock_irqrestore(&evtchn_rwlock, flags);
+
 	kfree(info);
 
 	/* Legacy IRQ descriptors are managed by the arch. */
@@ -841,7 +1036,7 @@ int xen_pirq_from_irq(unsigned irq)
 }
 EXPORT_SYMBOL_GPL(xen_pirq_from_irq);
 
-int bind_evtchn_to_irq(evtchn_port_t evtchn)
+static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip)
 {
 	int irq;
 	int ret;
@@ -858,7 +1053,7 @@ int bind_evtchn_to_irq(evtchn_port_t evtchn)
 		if (irq < 0)
 			goto out;
 
-		irq_set_chip_and_handler_name(irq, &xen_dynamic_chip,
+		irq_set_chip_and_handler_name(irq, chip,
 					      handle_edge_irq, "event");
 
 		ret = xen_irq_info_evtchn_setup(irq, evtchn);
@@ -879,8 +1074,19 @@ int bind_evtchn_to_irq(evtchn_port_t evtchn)
 
 	return irq;
 }
+
+int bind_evtchn_to_irq(evtchn_port_t evtchn)
+{
+	return bind_evtchn_to_irq_chip(evtchn, &xen_dynamic_chip);
+}
 EXPORT_SYMBOL_GPL(bind_evtchn_to_irq);
 
+int bind_evtchn_to_irq_lateeoi(evtchn_port_t evtchn)
+{
+	return bind_evtchn_to_irq_chip(evtchn, &xen_lateeoi_chip);
+}
+EXPORT_SYMBOL_GPL(bind_evtchn_to_irq_lateeoi);
+
 static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
 {
 	struct evtchn_bind_ipi bind_ipi;
@@ -922,8 +1128,9 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
 	return irq;
 }
 
-int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
-				   evtchn_port_t remote_port)
+static int bind_interdomain_evtchn_to_irq_chip(unsigned int remote_domain,
+					       evtchn_port_t remote_port,
+					       struct irq_chip *chip)
 {
 	struct evtchn_bind_interdomain bind_interdomain;
 	int err;
@@ -934,10 +1141,26 @@ int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
 	err = HYPERVISOR_event_channel_op(EVTCHNOP_bind_interdomain,
 					  &bind_interdomain);
 
-	return err ? : bind_evtchn_to_irq(bind_interdomain.local_port);
+	return err ? : bind_evtchn_to_irq_chip(bind_interdomain.local_port,
+					       chip);
+}
+
+int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
+				   evtchn_port_t remote_port)
+{
+	return bind_interdomain_evtchn_to_irq_chip(remote_domain, remote_port,
+						   &xen_dynamic_chip);
 }
 EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irq);
 
+int bind_interdomain_evtchn_to_irq_lateeoi(unsigned int remote_domain,
+					   evtchn_port_t remote_port)
+{
+	return bind_interdomain_evtchn_to_irq_chip(remote_domain, remote_port,
+						   &xen_lateeoi_chip);
+}
+EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irq_lateeoi);
+
 static int find_virq(unsigned int virq, unsigned int cpu, evtchn_port_t *evtchn)
 {
 	struct evtchn_status status;
@@ -1034,14 +1257,15 @@ static void unbind_from_irq(unsigned int irq)
 	mutex_unlock(&irq_mapping_update_lock);
 }
 
-int bind_evtchn_to_irqhandler(evtchn_port_t evtchn,
-			      irq_handler_t handler,
-			      unsigned long irqflags,
-			      const char *devname, void *dev_id)
+static int bind_evtchn_to_irqhandler_chip(evtchn_port_t evtchn,
+					  irq_handler_t handler,
+					  unsigned long irqflags,
+					  const char *devname, void *dev_id,
+					  struct irq_chip *chip)
 {
 	int irq, retval;
 
-	irq = bind_evtchn_to_irq(evtchn);
+	irq = bind_evtchn_to_irq_chip(evtchn, chip);
 	if (irq < 0)
 		return irq;
 	retval = request_irq(irq, handler, irqflags, devname, dev_id);
@@ -1052,18 +1276,38 @@ int bind_evtchn_to_irqhandler(evtchn_port_t evtchn,
 
 	return irq;
 }
+
+int bind_evtchn_to_irqhandler(evtchn_port_t evtchn,
+			      irq_handler_t handler,
+			      unsigned long irqflags,
+			      const char *devname, void *dev_id)
+{
+	return bind_evtchn_to_irqhandler_chip(evtchn, handler, irqflags,
+					      devname, dev_id,
+					      &xen_dynamic_chip);
+}
 EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler);
 
-int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
-					  evtchn_port_t remote_port,
-					  irq_handler_t handler,
-					  unsigned long irqflags,
-					  const char *devname,
-					  void *dev_id)
+int bind_evtchn_to_irqhandler_lateeoi(evtchn_port_t evtchn,
+				      irq_handler_t handler,
+				      unsigned long irqflags,
+				      const char *devname, void *dev_id)
+{
+	return bind_evtchn_to_irqhandler_chip(evtchn, handler, irqflags,
+					      devname, dev_id,
+					      &xen_lateeoi_chip);
+}
+EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler_lateeoi);
+
+static int bind_interdomain_evtchn_to_irqhandler_chip(
+		unsigned int remote_domain, evtchn_port_t remote_port,
+		irq_handler_t handler, unsigned long irqflags,
+		const char *devname, void *dev_id, struct irq_chip *chip)
 {
 	int irq, retval;
 
-	irq = bind_interdomain_evtchn_to_irq(remote_domain, remote_port);
+	irq = bind_interdomain_evtchn_to_irq_chip(remote_domain, remote_port,
+						  chip);
 	if (irq < 0)
 		return irq;
 
@@ -1075,8 +1319,33 @@ int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
 
 	return irq;
 }
+
+int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
+					  evtchn_port_t remote_port,
+					  irq_handler_t handler,
+					  unsigned long irqflags,
+					  const char *devname,
+					  void *dev_id)
+{
+	return bind_interdomain_evtchn_to_irqhandler_chip(remote_domain,
+				remote_port, handler, irqflags, devname,
+				dev_id, &xen_dynamic_chip);
+}
 EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irqhandler);
 
+int bind_interdomain_evtchn_to_irqhandler_lateeoi(unsigned int remote_domain,
+						  evtchn_port_t remote_port,
+						  irq_handler_t handler,
+						  unsigned long irqflags,
+						  const char *devname,
+						  void *dev_id)
+{
+	return bind_interdomain_evtchn_to_irqhandler_chip(remote_domain,
+				remote_port, handler, irqflags, devname,
+				dev_id, &xen_lateeoi_chip);
+}
+EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irqhandler_lateeoi);
+
 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
 			    irq_handler_t handler,
 			    unsigned long irqflags, const char *devname, void *dev_id)
@@ -1189,7 +1458,7 @@ int evtchn_get(evtchn_port_t evtchn)
 		goto done;
 
 	err = -EINVAL;
-	if (info->refcnt <= 0)
+	if (info->refcnt <= 0 || info->refcnt == SHRT_MAX)
 		goto done;
 
 	info->refcnt++;
@@ -1228,21 +1497,81 @@ void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector)
 	notify_remote_via_irq(irq);
 }
 
+struct evtchn_loop_ctrl {
+	ktime_t timeout;
+	unsigned count;
+	bool defer_eoi;
+};
+
+void handle_irq_for_port(evtchn_port_t port, struct evtchn_loop_ctrl *ctrl)
+{
+	int irq;
+	struct irq_info *info;
+
+	irq = get_evtchn_to_irq(port);
+	if (irq == -1)
+		return;
+
+	/*
+	 * Check for timeout every 256 events.
+	 * We are setting the timeout value only after the first 256
+	 * events in order to not hurt the common case of few loop
+	 * iterations. The 256 is basically an arbitrary value.
+	 *
+	 * In case we are hitting the timeout we need to defer all further
+	 * EOIs in order to ensure to leave the event handling loop rather
+	 * sooner than later.
+	 */
+	if (!ctrl->defer_eoi && !(++ctrl->count & 0xff)) {
+		ktime_t kt = ktime_get();
+
+		if (!ctrl->timeout) {
+			kt = ktime_add_ms(kt,
+					  jiffies_to_msecs(event_loop_timeout));
+			ctrl->timeout = kt;
+		} else if (kt > ctrl->timeout) {
+			ctrl->defer_eoi = true;
+		}
+	}
+
+	info = info_for_irq(irq);
+
+	if (ctrl->defer_eoi) {
+		info->eoi_cpu = smp_processor_id();
+		info->irq_epoch = __this_cpu_read(irq_epoch);
+		info->eoi_time = get_jiffies_64() + event_eoi_delay;
+	}
+
+	generic_handle_irq(irq);
+}
+
 static void __xen_evtchn_do_upcall(void)
 {
 	struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu);
 	int cpu = smp_processor_id();
+	struct evtchn_loop_ctrl ctrl = { 0 };
+
+	read_lock(&evtchn_rwlock);
 
 	do {
 		vcpu_info->evtchn_upcall_pending = 0;
 
-		xen_evtchn_handle_events(cpu);
+		xen_evtchn_handle_events(cpu, &ctrl);
 
 		BUG_ON(!irqs_disabled());
 
 		virt_rmb(); /* Hypervisor can set upcall pending. */
 
 	} while (vcpu_info->evtchn_upcall_pending);
+
+	read_unlock(&evtchn_rwlock);
+
+	/*
+	 * Increment irq_epoch only now to defer EOIs only for
+	 * xen_irq_lateeoi() invocations occurring from inside the loop
+	 * above.
+	 */
+	__this_cpu_inc(irq_epoch);
 }
 
 void xen_evtchn_do_upcall(struct pt_regs *regs)
@@ -1606,6 +1935,21 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
 	.irq_retrigger		= retrigger_dynirq,
 };
 
+static struct irq_chip xen_lateeoi_chip __read_mostly = {
+	/* The chip name needs to contain "xen-dyn" for irqbalance to work. */
+	.name			= "xen-dyn-lateeoi",
+
+	.irq_disable		= disable_dynirq,
+	.irq_mask		= disable_dynirq,
+	.irq_unmask		= enable_dynirq,
+
+	.irq_ack		= mask_ack_dynirq,
+	.irq_mask_ack		= mask_ack_dynirq,
+
+	.irq_set_affinity	= set_affinity_irq,
+	.irq_retrigger		= retrigger_dynirq,
+};
+
 static struct irq_chip xen_pirq_chip __read_mostly = {
 	.name			= "xen-pirq",
 
@@ -1676,12 +2020,31 @@ void xen_setup_callback_vector(void) {}
 static inline void xen_alloc_callback_vector(void) {}
 #endif
 
-#undef MODULE_PARAM_PREFIX
-#define MODULE_PARAM_PREFIX "xen."
-
 static bool fifo_events = true;
 module_param(fifo_events, bool, 0);
 
+static int xen_evtchn_cpu_prepare(unsigned int cpu)
+{
+	int ret = 0;
+
+	xen_cpu_init_eoi(cpu);
+
+	if (evtchn_ops->percpu_init)
+		ret = evtchn_ops->percpu_init(cpu);
+
+	return ret;
+}
+
+static int xen_evtchn_cpu_dead(unsigned int cpu)
+{
+	int ret = 0;
+
+	if (evtchn_ops->percpu_deinit)
+		ret = evtchn_ops->percpu_deinit(cpu);
+
+	return ret;
+}
+
 void __init xen_init_IRQ(void)
 {
 	int ret = -EINVAL;
@@ -1692,6 +2055,12 @@ void __init xen_init_IRQ(void)
 	if (ret < 0)
 		xen_evtchn_2l_init();
 
+	xen_cpu_init_eoi(smp_processor_id());
+
+	cpuhp_setup_state_nocalls(CPUHP_XEN_EVTCHN_PREPARE,
+				  "xen/evtchn:prepare",
+				  xen_evtchn_cpu_prepare, xen_evtchn_cpu_dead);
+
 	evtchn_to_irq = kcalloc(EVTCHN_ROW(xen_evtchn_max_channels()),
 				sizeof(*evtchn_to_irq), GFP_KERNEL);
 	BUG_ON(!evtchn_to_irq);
diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c
index c60ee0450173..6085a808da95 100644
--- a/drivers/xen/events/events_fifo.c
+++ b/drivers/xen/events/events_fifo.c
@@ -227,19 +227,25 @@ static bool evtchn_fifo_is_masked(evtchn_port_t port)
 	return sync_test_bit(EVTCHN_FIFO_BIT(MASKED, word), BM(word));
 }
 /*
- * Clear MASKED, spinning if BUSY is set.
+ * Clear MASKED if not PENDING, spinning if BUSY is set.
+ * Return true if mask was cleared.
  */
-static void clear_masked(volatile event_word_t *word)
+static bool clear_masked_cond(volatile event_word_t *word)
 {
 	event_word_t new, old, w;
 
 	w = *word;
 
 	do {
+		if (w & (1 << EVTCHN_FIFO_PENDING))
+			return false;
+
 		old = w & ~(1 << EVTCHN_FIFO_BUSY);
 		new = old & ~(1 << EVTCHN_FIFO_MASKED);
 		w = sync_cmpxchg(word, old, new);
 	} while (w != old);
+
+	return true;
 }
 
 static void evtchn_fifo_unmask(evtchn_port_t port)
@@ -248,8 +254,7 @@ static void evtchn_fifo_unmask(evtchn_port_t port)
 
 	BUG_ON(!irqs_disabled());
 
-	clear_masked(word);
-	if (evtchn_fifo_is_pending(port)) {
+	if (!clear_masked_cond(word)) {
 		struct evtchn_unmask unmask = { .port = port };
 		(void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask);
 	}
@@ -270,19 +275,9 @@ static uint32_t clear_linked(volatile event_word_t *word)
 	return w & EVTCHN_FIFO_LINK_MASK;
 }
 
-static void handle_irq_for_port(evtchn_port_t port)
-{
-	int irq;
-
-	irq = get_evtchn_to_irq(port);
-	if (irq != -1)
-		generic_handle_irq(irq);
-}
-
-static void consume_one_event(unsigned cpu,
+static void consume_one_event(unsigned cpu, struct evtchn_loop_ctrl *ctrl,
 			      struct evtchn_fifo_control_block *control_block,
-			      unsigned priority, unsigned long *ready,
-			      bool drop)
+			      unsigned priority, unsigned long *ready)
 {
 	struct evtchn_fifo_queue *q = &per_cpu(cpu_queue, cpu);
 	uint32_t head;
@@ -315,16 +310,17 @@ static void consume_one_event(unsigned cpu,
 		clear_bit(priority, ready);
 
 	if (evtchn_fifo_is_pending(port) && !evtchn_fifo_is_masked(port)) {
-		if (unlikely(drop))
+		if (unlikely(!ctrl))
 			pr_warn("Dropping pending event for port %u\n", port);
 		else
-			handle_irq_for_port(port);
+			handle_irq_for_port(port, ctrl);
 	}
 
 	q->head[priority] = head;
 }
 
-static void __evtchn_fifo_handle_events(unsigned cpu, bool drop)
+static void __evtchn_fifo_handle_events(unsigned cpu,
+					struct evtchn_loop_ctrl *ctrl)
 {
 	struct evtchn_fifo_control_block *control_block;
 	unsigned long ready;
@@ -336,14 +332,15 @@ static void __evtchn_fifo_handle_events(unsigned cpu, bool drop)
 
 	while (ready) {
 		q = find_first_bit(&ready, EVTCHN_FIFO_MAX_QUEUES);
-		consume_one_event(cpu, control_block, q, &ready, drop);
+		consume_one_event(cpu, ctrl, control_block, q, &ready);
 		ready |= xchg(&control_block->ready, 0);
 	}
 }
 
-static void evtchn_fifo_handle_events(unsigned cpu)
+static void evtchn_fifo_handle_events(unsigned cpu,
+				      struct evtchn_loop_ctrl *ctrl)
 {
-	__evtchn_fifo_handle_events(cpu, false);
+	__evtchn_fifo_handle_events(cpu, ctrl);
 }
 
 static void evtchn_fifo_resume(void)
@@ -380,21 +377,6 @@ static void evtchn_fifo_resume(void)
 	event_array_pages = 0;
 }
 
-static const struct evtchn_ops evtchn_ops_fifo = {
-	.max_channels      = evtchn_fifo_max_channels,
-	.nr_channels       = evtchn_fifo_nr_channels,
-	.setup             = evtchn_fifo_setup,
-	.bind_to_cpu       = evtchn_fifo_bind_to_cpu,
-	.clear_pending     = evtchn_fifo_clear_pending,
-	.set_pending       = evtchn_fifo_set_pending,
-	.is_pending        = evtchn_fifo_is_pending,
-	.test_and_set_mask = evtchn_fifo_test_and_set_mask,
-	.mask              = evtchn_fifo_mask,
-	.unmask            = evtchn_fifo_unmask,
-	.handle_events     = evtchn_fifo_handle_events,
-	.resume            = evtchn_fifo_resume,
-};
-
 static int evtchn_fifo_alloc_control_block(unsigned cpu)
 {
 	void *control_block = NULL;
@@ -417,19 +399,36 @@ static int evtchn_fifo_alloc_control_block(unsigned cpu)
 	return ret;
 }
 
-static int xen_evtchn_cpu_prepare(unsigned int cpu)
+static int evtchn_fifo_percpu_init(unsigned int cpu)
 {
 	if (!per_cpu(cpu_control_block, cpu))
 		return evtchn_fifo_alloc_control_block(cpu);
 	return 0;
 }
 
-static int xen_evtchn_cpu_dead(unsigned int cpu)
+static int evtchn_fifo_percpu_deinit(unsigned int cpu)
 {
-	__evtchn_fifo_handle_events(cpu, true);
+	__evtchn_fifo_handle_events(cpu, NULL);
 	return 0;
 }
 
+static const struct evtchn_ops evtchn_ops_fifo = {
+	.max_channels      = evtchn_fifo_max_channels,
+	.nr_channels       = evtchn_fifo_nr_channels,
+	.setup             = evtchn_fifo_setup,
+	.bind_to_cpu       = evtchn_fifo_bind_to_cpu,
+	.clear_pending     = evtchn_fifo_clear_pending,
+	.set_pending       = evtchn_fifo_set_pending,
+	.is_pending        = evtchn_fifo_is_pending,
+	.test_and_set_mask = evtchn_fifo_test_and_set_mask,
+	.mask              = evtchn_fifo_mask,
+	.unmask            = evtchn_fifo_unmask,
+	.handle_events     = evtchn_fifo_handle_events,
+	.resume            = evtchn_fifo_resume,
+	.percpu_init       = evtchn_fifo_percpu_init,
+	.percpu_deinit     = evtchn_fifo_percpu_deinit,
+};
+
 int __init xen_evtchn_fifo_init(void)
 {
 	int cpu = smp_processor_id();
@@ -443,9 +442,5 @@ int __init xen_evtchn_fifo_init(void)
 
 	evtchn_ops = &evtchn_ops_fifo;
 
-	cpuhp_setup_state_nocalls(CPUHP_XEN_EVTCHN_PREPARE,
-				  "xen/evtchn:prepare",
-				  xen_evtchn_cpu_prepare, xen_evtchn_cpu_dead);
-
 	return ret;
 }
diff --git a/drivers/xen/events/events_internal.h b/drivers/xen/events/events_internal.h
index 10684feb094e..82937d90d7d7 100644
--- a/drivers/xen/events/events_internal.h
+++ b/drivers/xen/events/events_internal.h
@@ -30,11 +30,16 @@ enum xen_irq_type {
  */
 struct irq_info {
 	struct list_head list;
-	int refcnt;
+	struct list_head eoi_list;
+	short refcnt;
+	short spurious_cnt;
 	enum xen_irq_type type;	/* type */
 	unsigned irq;
 	evtchn_port_t evtchn;	/* event channel */
 	unsigned short cpu;	/* cpu bound */
+	unsigned short eoi_cpu;	/* EOI must happen on this cpu */
+	unsigned int irq_epoch;	/* If eoi_cpu valid: irq_epoch of event */
+	u64 eoi_time;		/* Time in jiffies when to EOI. */
 
 	union {
 		unsigned short virq;
@@ -53,6 +58,8 @@ struct irq_info {
 #define PIRQ_SHAREABLE	(1 << 1)
 #define PIRQ_MSI_GROUP	(1 << 2)
 
+struct evtchn_loop_ctrl;
+
 struct evtchn_ops {
 	unsigned (*max_channels)(void);
 	unsigned (*nr_channels)(void);
@@ -67,14 +74,18 @@ struct evtchn_ops {
 	void (*mask)(evtchn_port_t port);
 	void (*unmask)(evtchn_port_t port);
 
-	void (*handle_events)(unsigned cpu);
+	void (*handle_events)(unsigned cpu, struct evtchn_loop_ctrl *ctrl);
 	void (*resume)(void);
+
+	int (*percpu_init)(unsigned int cpu);
+	int (*percpu_deinit)(unsigned int cpu);
 };
 
 extern const struct evtchn_ops *evtchn_ops;
 
 extern int **evtchn_to_irq;
 int get_evtchn_to_irq(evtchn_port_t evtchn);
+void handle_irq_for_port(evtchn_port_t port, struct evtchn_loop_ctrl *ctrl);
 
 struct irq_info *info_for_irq(unsigned irq);
 unsigned cpu_from_irq(unsigned irq);
@@ -132,9 +143,10 @@ static inline void unmask_evtchn(evtchn_port_t port)
 	return evtchn_ops->unmask(port);
 }
 
-static inline void xen_evtchn_handle_events(unsigned cpu)
+static inline void xen_evtchn_handle_events(unsigned cpu,
+					    struct evtchn_loop_ctrl *ctrl)
 {
-	return evtchn_ops->handle_events(cpu);
+	return evtchn_ops->handle_events(cpu, ctrl);
 }
 
 static inline void xen_evtchn_resume(void)
diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index 6e0b1dd5573c..5dc016d68f83 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -167,7 +167,6 @@ static irqreturn_t evtchn_interrupt(int irq, void *data)
 	     "Interrupt for port %u, but apparently not enabled; per-user %p\n",
 	     evtchn->port, u);
 
-	disable_irq_nosync(irq);
 	evtchn->enabled = false;
 
 	spin_lock(&u->ring_prod_lock);
@@ -293,7 +292,7 @@ static ssize_t evtchn_write(struct file *file, const char __user *buf,
 		evtchn = find_evtchn(u, port);
 		if (evtchn && !evtchn->enabled) {
 			evtchn->enabled = true;
-			enable_irq(irq_from_evtchn(port));
+			xen_irq_lateeoi(irq_from_evtchn(port), 0);
 		}
 	}
 
@@ -393,8 +392,8 @@ static int evtchn_bind_to_user(struct per_user_data *u, evtchn_port_t port)
 	if (rc < 0)
 		goto err;
 
-	rc = bind_evtchn_to_irqhandler(port, evtchn_interrupt, 0,
-				       u->name, evtchn);
+	rc = bind_evtchn_to_irqhandler_lateeoi(port, evtchn_interrupt, 0,
+					       u->name, evtchn);
 	if (rc < 0)
 		goto err;
 
diff --git a/drivers/xen/gntdev-dmabuf.c b/drivers/xen/gntdev-dmabuf.c
index b1b6eebafd5d..4c13cbc99896 100644
--- a/drivers/xen/gntdev-dmabuf.c
+++ b/drivers/xen/gntdev-dmabuf.c
@@ -247,10 +247,9 @@ static void dmabuf_exp_ops_detach(struct dma_buf *dma_buf,
 
 		if (sgt) {
 			if (gntdev_dmabuf_attach->dir != DMA_NONE)
-				dma_unmap_sg_attrs(attach->dev, sgt->sgl,
-						   sgt->nents,
-						   gntdev_dmabuf_attach->dir,
-						   DMA_ATTR_SKIP_CPU_SYNC);
+				dma_unmap_sgtable(attach->dev, sgt,
+						  gntdev_dmabuf_attach->dir,
+						  DMA_ATTR_SKIP_CPU_SYNC);
 			sg_free_table(sgt);
 		}
 
@@ -288,8 +287,8 @@ dmabuf_exp_ops_map_dma_buf(struct dma_buf_attachment *attach,
 	sgt = dmabuf_pages_to_sgt(gntdev_dmabuf->pages,
 				  gntdev_dmabuf->nr_pages);
 	if (!IS_ERR(sgt)) {
-		if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir,
-				      DMA_ATTR_SKIP_CPU_SYNC)) {
+		if (dma_map_sgtable(attach->dev, sgt, dir,
+				    DMA_ATTR_SKIP_CPU_SYNC)) {
 			sg_free_table(sgt);
 			kfree(sgt);
 			sgt = ERR_PTR(-ENOMEM);
@@ -633,7 +632,7 @@ dmabuf_imp_to_refs(struct gntdev_dmabuf_priv *priv, struct device *dev,
 
 	/* Now convert sgt to array of pages and check for page validity. */
 	i = 0;
-	for_each_sg_page(sgt->sgl, &sg_iter, sgt->nents, 0) {
+	for_each_sgtable_page(sgt, &sg_iter, 0) {
 		struct page *page = sg_page_iter_page(&sg_iter);
 		/*
 		 * Check if page is valid: this can happen if we are given
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index 9eae1fceec1e..a7d293fa8d14 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -66,6 +66,7 @@ struct sock_mapping {
 	atomic_t write;
 	atomic_t io;
 	atomic_t release;
+	atomic_t eoi;
 	void (*saved_data_ready)(struct sock *sk);
 	struct pvcalls_ioworker ioworker;
 };
@@ -87,7 +88,7 @@ static int pvcalls_back_release_active(struct xenbus_device *dev,
 				       struct pvcalls_fedata *fedata,
 				       struct sock_mapping *map);
 
-static void pvcalls_conn_back_read(void *opaque)
+static bool pvcalls_conn_back_read(void *opaque)
 {
 	struct sock_mapping *map = (struct sock_mapping *)opaque;
 	struct msghdr msg;
@@ -107,17 +108,17 @@ static void pvcalls_conn_back_read(void *opaque)
 	virt_mb();
 
 	if (error)
-		return;
+		return false;
 
 	size = pvcalls_queued(prod, cons, array_size);
 	if (size >= array_size)
-		return;
+		return false;
 	spin_lock_irqsave(&map->sock->sk->sk_receive_queue.lock, flags);
 	if (skb_queue_empty(&map->sock->sk->sk_receive_queue)) {
 		atomic_set(&map->read, 0);
 		spin_unlock_irqrestore(&map->sock->sk->sk_receive_queue.lock,
 				flags);
-		return;
+		return true;
 	}
 	spin_unlock_irqrestore(&map->sock->sk->sk_receive_queue.lock, flags);
 	wanted = array_size - size;
@@ -141,7 +142,7 @@ static void pvcalls_conn_back_read(void *opaque)
 	ret = inet_recvmsg(map->sock, &msg, wanted, MSG_DONTWAIT);
 	WARN_ON(ret > wanted);
 	if (ret == -EAGAIN) /* shouldn't happen */
-		return;
+		return true;
 	if (!ret)
 		ret = -ENOTCONN;
 	spin_lock_irqsave(&map->sock->sk->sk_receive_queue.lock, flags);
@@ -160,10 +161,10 @@ static void pvcalls_conn_back_read(void *opaque)
 	virt_wmb();
 	notify_remote_via_irq(map->irq);
 
-	return;
+	return true;
 }
 
-static void pvcalls_conn_back_write(struct sock_mapping *map)
+static bool pvcalls_conn_back_write(struct sock_mapping *map)
 {
 	struct pvcalls_data_intf *intf = map->ring;
 	struct pvcalls_data *data = &map->data;
@@ -180,7 +181,7 @@ static void pvcalls_conn_back_write(struct sock_mapping *map)
 	array_size = XEN_FLEX_RING_SIZE(map->ring_order);
 	size = pvcalls_queued(prod, cons, array_size);
 	if (size == 0)
-		return;
+		return false;
 
 	memset(&msg, 0, sizeof(msg));
 	msg.msg_flags |= MSG_DONTWAIT;
@@ -198,12 +199,11 @@ static void pvcalls_conn_back_write(struct sock_mapping *map)
 
 	atomic_set(&map->write, 0);
 	ret = inet_sendmsg(map->sock, &msg, size);
-	if (ret == -EAGAIN || (ret >= 0 && ret < size)) {
+	if (ret == -EAGAIN) {
 		atomic_inc(&map->write);
 		atomic_inc(&map->io);
+		return true;
 	}
-	if (ret == -EAGAIN)
-		return;
 
 	/* write the data, then update the indexes */
 	virt_wmb();
@@ -216,9 +216,13 @@ static void pvcalls_conn_back_write(struct sock_mapping *map)
 	}
 	/* update the indexes, then notify the other end */
 	virt_wmb();
-	if (prod != cons + ret)
+	if (prod != cons + ret) {
 		atomic_inc(&map->write);
+		atomic_inc(&map->io);
+	}
 	notify_remote_via_irq(map->irq);
+
+	return true;
 }
 
 static void pvcalls_back_ioworker(struct work_struct *work)
@@ -227,6 +231,7 @@ static void pvcalls_back_ioworker(struct work_struct *work)
 		struct pvcalls_ioworker, register_work);
 	struct sock_mapping *map = container_of(ioworker, struct sock_mapping,
 		ioworker);
+	unsigned int eoi_flags = XEN_EOI_FLAG_SPURIOUS;
 
 	while (atomic_read(&map->io) > 0) {
 		if (atomic_read(&map->release) > 0) {
@@ -234,10 +239,18 @@ static void pvcalls_back_ioworker(struct work_struct *work)
 			return;
 		}
 
-		if (atomic_read(&map->read) > 0)
-			pvcalls_conn_back_read(map);
-		if (atomic_read(&map->write) > 0)
-			pvcalls_conn_back_write(map);
+		if (atomic_read(&map->read) > 0 &&
+		    pvcalls_conn_back_read(map))
+			eoi_flags = 0;
+		if (atomic_read(&map->write) > 0 &&
+		    pvcalls_conn_back_write(map))
+			eoi_flags = 0;
+
+		if (atomic_read(&map->eoi) > 0 && !atomic_read(&map->write)) {
+			atomic_set(&map->eoi, 0);
+			xen_irq_lateeoi(map->irq, eoi_flags);
+			eoi_flags = XEN_EOI_FLAG_SPURIOUS;
+		}
 
 		atomic_dec(&map->io);
 	}
@@ -334,12 +347,9 @@ static struct sock_mapping *pvcalls_new_active_socket(
 		goto out;
 	map->bytes = page;
 
-	ret = bind_interdomain_evtchn_to_irqhandler(fedata->dev->otherend_id,
-						    evtchn,
-						    pvcalls_back_conn_event,
-						    0,
-						    "pvcalls-backend",
-						    map);
+	ret = bind_interdomain_evtchn_to_irqhandler_lateeoi(
+			fedata->dev->otherend_id, evtchn,
+			pvcalls_back_conn_event, 0, "pvcalls-backend", map);
 	if (ret < 0)
 		goto out;
 	map->irq = ret;
@@ -873,15 +883,18 @@ static irqreturn_t pvcalls_back_event(int irq, void *dev_id)
 {
 	struct xenbus_device *dev = dev_id;
 	struct pvcalls_fedata *fedata = NULL;
+	unsigned int eoi_flags = XEN_EOI_FLAG_SPURIOUS;
 
-	if (dev == NULL)
-		return IRQ_HANDLED;
+	if (dev) {
+		fedata = dev_get_drvdata(&dev->dev);
+		if (fedata) {
+			pvcalls_back_work(fedata);
+			eoi_flags = 0;
+		}
+	}
 
-	fedata = dev_get_drvdata(&dev->dev);
-	if (fedata == NULL)
-		return IRQ_HANDLED;
+	xen_irq_lateeoi(irq, eoi_flags);
 
-	pvcalls_back_work(fedata);
 	return IRQ_HANDLED;
 }
 
@@ -891,12 +904,15 @@ static irqreturn_t pvcalls_back_conn_event(int irq, void *sock_map)
 	struct pvcalls_ioworker *iow;
 
 	if (map == NULL || map->sock == NULL || map->sock->sk == NULL ||
-		map->sock->sk->sk_user_data != map)
+		map->sock->sk->sk_user_data != map) {
+		xen_irq_lateeoi(irq, 0);
 		return IRQ_HANDLED;
+	}
 
 	iow = &map->ioworker;
 
 	atomic_inc(&map->write);
+	atomic_inc(&map->eoi);
 	atomic_inc(&map->io);
 	queue_work(iow->wq, &iow->register_work);
 
@@ -932,7 +948,7 @@ static int backend_connect(struct xenbus_device *dev)
 		goto error;
 	}
 
-	err = bind_interdomain_evtchn_to_irq(dev->otherend_id, evtchn);
+	err = bind_interdomain_evtchn_to_irq_lateeoi(dev->otherend_id, evtchn);
 	if (err < 0)
 		goto error;
 	fedata->irq = err;
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index e876c3d6dad1..cb904ac83006 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -734,10 +734,17 @@ static pci_ers_result_t common_process(struct pcistub_device *psdev,
 	wmb();
 	notify_remote_via_irq(pdev->evtchn_irq);
 
+	/* Enable IRQ to signal "request done". */
+	xen_pcibk_lateeoi(pdev, 0);
+
 	ret = wait_event_timeout(xen_pcibk_aer_wait_queue,
 				 !(test_bit(_XEN_PCIB_active, (unsigned long *)
 				 &sh_info->flags)), 300*HZ);
 
+	/* Enable IRQ for pcifront request if not already active. */
+	if (!test_bit(_PDEVF_op_active, &pdev->flags))
+		xen_pcibk_lateeoi(pdev, 0);
+
 	if (!ret) {
 		if (test_bit(_XEN_PCIB_active,
 			(unsigned long *)&sh_info->flags)) {
@@ -751,12 +758,6 @@ static pci_ers_result_t common_process(struct pcistub_device *psdev,
 	}
 	clear_bit(_PCIB_op_pending, (unsigned long *)&pdev->flags);
 
-	if (test_bit(_XEN_PCIF_active,
-		(unsigned long *)&sh_info->flags)) {
-		dev_dbg(&psdev->dev->dev, "schedule pci_conf service\n");
-		xen_pcibk_test_and_schedule_op(psdev->pdev);
-	}
-
 	res = (pci_ers_result_t)aer_op->err;
 	return res;
 }
diff --git a/drivers/xen/xen-pciback/pciback.h b/drivers/xen/xen-pciback/pciback.h
index f1ed2dbf685c..95e28ee48d52 100644
--- a/drivers/xen/xen-pciback/pciback.h
+++ b/drivers/xen/xen-pciback/pciback.h
@@ -14,6 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
 #include <linux/atomic.h>
+#include <xen/events.h>
 #include <xen/interface/io/pciif.h>
 
 #define DRV_NAME	"xen-pciback"
@@ -27,6 +28,8 @@ struct pci_dev_entry {
 #define PDEVF_op_active		(1<<(_PDEVF_op_active))
 #define _PCIB_op_pending	(1)
 #define PCIB_op_pending		(1<<(_PCIB_op_pending))
+#define _EOI_pending		(2)
+#define EOI_pending		(1<<(_EOI_pending))
 
 struct xen_pcibk_device {
 	void *pci_dev_data;
@@ -183,10 +186,15 @@ static inline void xen_pcibk_release_devices(struct xen_pcibk_device *pdev)
 irqreturn_t xen_pcibk_handle_event(int irq, void *dev_id);
 void xen_pcibk_do_op(struct work_struct *data);
 
+static inline void xen_pcibk_lateeoi(struct xen_pcibk_device *pdev,
+				     unsigned int eoi_flag)
+{
+	if (test_and_clear_bit(_EOI_pending, &pdev->flags))
+		xen_irq_lateeoi(pdev->evtchn_irq, eoi_flag);
+}
+
 int xen_pcibk_xenbus_register(void);
 void xen_pcibk_xenbus_unregister(void);
-
-void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev);
 #endif
 
 /* Handles shared IRQs that can to device domain and control domain. */
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index e11a7438e1a2..3fbc21466a93 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -276,26 +276,41 @@ int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
 	return 0;
 }
 #endif
+
+static inline bool xen_pcibk_test_op_pending(struct xen_pcibk_device *pdev)
+{
+	return test_bit(_XEN_PCIF_active,
+			(unsigned long *)&pdev->sh_info->flags) &&
+	       !test_and_set_bit(_PDEVF_op_active, &pdev->flags);
+}
+
 /*
 * Now the same evtchn is used for both pcifront conf_read_write request
 * as well as pcie aer front end ack. We use a new work_queue to schedule
 * xen_pcibk conf_read_write service for avoiding confict with aer_core
 * do_recovery job which also use the system default work_queue
 */
-void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev)
+static void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev)
 {
+	bool eoi = true;
+
 	/* Check that frontend is requesting an operation and that we are not
 	 * already processing a request */
-	if (test_bit(_XEN_PCIF_active, (unsigned long *)&pdev->sh_info->flags)
-	    && !test_and_set_bit(_PDEVF_op_active, &pdev->flags)) {
+	if (xen_pcibk_test_op_pending(pdev)) {
 		schedule_work(&pdev->op_work);
+		eoi = false;
 	}
 	/*_XEN_PCIB_active should have been cleared by pcifront. And also make
 	sure xen_pcibk is waiting for ack by checking _PCIB_op_pending*/
 	if (!test_bit(_XEN_PCIB_active, (unsigned long *)&pdev->sh_info->flags)
 	    && test_bit(_PCIB_op_pending, &pdev->flags)) {
 		wake_up(&xen_pcibk_aer_wait_queue);
+		eoi = false;
 	}
+
+	/* EOI if there was nothing to do. */
+	if (eoi)
+		xen_pcibk_lateeoi(pdev, XEN_EOI_FLAG_SPURIOUS);
 }
 
 /* Performing the configuration space reads/writes must not be done in atomic
@@ -303,10 +318,8 @@ void xen_pcibk_test_and_schedule_op(struct xen_pcibk_device *pdev)
  * use of semaphores). This function is intended to be called from a work
  * queue in process context taking a struct xen_pcibk_device as a parameter */
 
-void xen_pcibk_do_op(struct work_struct *data)
+static void xen_pcibk_do_one_op(struct xen_pcibk_device *pdev)
 {
-	struct xen_pcibk_device *pdev =
-		container_of(data, struct xen_pcibk_device, op_work);
 	struct pci_dev *dev;
 	struct xen_pcibk_dev_data *dev_data = NULL;
 	struct xen_pci_op *op = &pdev->op;
@@ -379,16 +392,31 @@ void xen_pcibk_do_op(struct work_struct *data)
 	smp_mb__before_atomic(); /* /after/ clearing PCIF_active */
 	clear_bit(_PDEVF_op_active, &pdev->flags);
 	smp_mb__after_atomic(); /* /before/ final check for work */
+}
 
-	/* Check to see if the driver domain tried to start another request in
-	 * between clearing _XEN_PCIF_active and clearing _PDEVF_op_active.
-	*/
-	xen_pcibk_test_and_schedule_op(pdev);
+void xen_pcibk_do_op(struct work_struct *data)
+{
+	struct xen_pcibk_device *pdev =
+		container_of(data, struct xen_pcibk_device, op_work);
+
+	do {
+		xen_pcibk_do_one_op(pdev);
+	} while (xen_pcibk_test_op_pending(pdev));
+
+	xen_pcibk_lateeoi(pdev, 0);
 }
 
 irqreturn_t xen_pcibk_handle_event(int irq, void *dev_id)
 {
 	struct xen_pcibk_device *pdev = dev_id;
+	bool eoi;
+
+	/* IRQs might come in before pdev->evtchn_irq is written. */
+	if (unlikely(pdev->evtchn_irq != irq))
+		pdev->evtchn_irq = irq;
+
+	eoi = test_and_set_bit(_EOI_pending, &pdev->flags);
+	WARN(eoi, "IRQ while EOI pending\n");
 
 	xen_pcibk_test_and_schedule_op(pdev);
 
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index b500466a6c37..4b99ec3dec58 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -123,7 +123,7 @@ static int xen_pcibk_do_attach(struct xen_pcibk_device *pdev, int gnt_ref,
 
 	pdev->sh_info = vaddr;
 
-	err = bind_interdomain_evtchn_to_irqhandler(
+	err = bind_interdomain_evtchn_to_irqhandler_lateeoi(
 		pdev->xdev->otherend_id, remote_evtchn, xen_pcibk_handle_event,
 		0, DRV_NAME, pdev);
 	if (err < 0) {
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 1e8cfd80a4e6..4acc4e899600 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -91,7 +91,6 @@ struct vscsibk_info {
 	unsigned int irq;
 
 	struct vscsiif_back_ring ring;
-	int ring_error;
 
 	spinlock_t ring_lock;
 	atomic_t nr_unreplied_reqs;
@@ -722,7 +721,8 @@ static struct vscsibk_pend *prepare_pending_reqs(struct vscsibk_info *info,
 	return pending_req;
 }
 
-static int scsiback_do_cmd_fn(struct vscsibk_info *info)
+static int scsiback_do_cmd_fn(struct vscsibk_info *info,
+			      unsigned int *eoi_flags)
 {
 	struct vscsiif_back_ring *ring = &info->ring;
 	struct vscsiif_request ring_req;
@@ -739,11 +739,12 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 		rc = ring->rsp_prod_pvt;
 		pr_warn("Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
 			   info->domid, rp, rc, rp - rc);
-		info->ring_error = 1;
-		return 0;
+		return -EINVAL;
 	}
 
 	while ((rc != rp)) {
+		*eoi_flags &= ~XEN_EOI_FLAG_SPURIOUS;
+
 		if (RING_REQUEST_CONS_OVERFLOW(ring, rc))
 			break;
 
@@ -802,13 +803,16 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 static irqreturn_t scsiback_irq_fn(int irq, void *dev_id)
 {
 	struct vscsibk_info *info = dev_id;
+	int rc;
+	unsigned int eoi_flags = XEN_EOI_FLAG_SPURIOUS;
 
-	if (info->ring_error)
-		return IRQ_HANDLED;
-
-	while (scsiback_do_cmd_fn(info))
+	while ((rc = scsiback_do_cmd_fn(info, &eoi_flags)) > 0)
 		cond_resched();
 
+	/* In case of a ring error we keep the event channel masked. */
+	if (!rc)
+		xen_irq_lateeoi(irq, eoi_flags);
+
 	return IRQ_HANDLED;
 }
 
@@ -829,7 +833,7 @@ static int scsiback_init_sring(struct vscsibk_info *info, grant_ref_t ring_ref,
 	sring = (struct vscsiif_sring *)area;
 	BACK_RING_INIT(&info->ring, sring, PAGE_SIZE);
 
-	err = bind_interdomain_evtchn_to_irq(info->domid, evtchn);
+	err = bind_interdomain_evtchn_to_irq_lateeoi(info->domid, evtchn);
 	if (err < 0)
 		goto unmap_page;
 
@@ -1253,7 +1257,6 @@ static int scsiback_probe(struct xenbus_device *dev,
 
 	info->domid = dev->otherend_id;
 	spin_lock_init(&info->ring_lock);
-	info->ring_error = 0;
 	atomic_set(&info->nr_unreplied_reqs, 0);
 	init_waitqueue_head(&info->waiting_to_free);
 	info->dev = dev;
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 3576123d8299..6d97b6b4d34b 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -612,9 +612,9 @@ static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
 	struct writeback_control wbc = {
 		.nr_to_write = LONG_MAX,
 		.sync_mode = WB_SYNC_ALL,
-		.range_start = vma->vm_pgoff * PAGE_SIZE,
+		.range_start = (loff_t)vma->vm_pgoff * PAGE_SIZE,
 		 /* absolute end, byte at end included */
-		.range_end = vma->vm_pgoff * PAGE_SIZE +
+		.range_end = (loff_t)vma->vm_pgoff * PAGE_SIZE +
 			(vma->vm_end - vma->vm_start - 1),
 	};
 
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 1d2e61e0ab04..1bb5b9d7f0a2 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -281,8 +281,7 @@ static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key)
 			if (ret < 0)
 				goto error;
 
-			set_page_private(req->pages[i], 1);
-			SetPagePrivate(req->pages[i]);
+			attach_page_private(req->pages[i], (void *)1);
 			unlock_page(req->pages[i]);
 			i++;
 		} else {
@@ -1975,8 +1974,7 @@ static int afs_dir_releasepage(struct page *page, gfp_t gfp_flags)
 
 	_enter("{{%llx:%llu}[%lu]}", dvnode->fid.vid, dvnode->fid.vnode, page->index);
 
-	set_page_private(page, 0);
-	ClearPagePrivate(page);
+	detach_page_private(page);
 
 	/* The directory will need reloading. */
 	if (test_and_clear_bit(AFS_VNODE_DIR_VALID, &dvnode->flags))
@@ -2003,8 +2001,6 @@ static void afs_dir_invalidatepage(struct page *page, unsigned int offset,
 		afs_stat_v(dvnode, n_inval);
 
 	/* we clean up only if the entire page is being invalidated */
-	if (offset == 0 && length == PAGE_SIZE) {
-		set_page_private(page, 0);
-		ClearPagePrivate(page);
-	}
+	if (offset == 0 && length == PAGE_SIZE)
+		detach_page_private(page);
 }
diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c
index b108528bf010..2ffe09abae7f 100644
--- a/fs/afs/dir_edit.c
+++ b/fs/afs/dir_edit.c
@@ -243,10 +243,8 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
 						   index, gfp);
 			if (!page)
 				goto error;
-			if (!PagePrivate(page)) {
-				set_page_private(page, 1);
-				SetPagePrivate(page);
-			}
+			if (!PagePrivate(page))
+				attach_page_private(page, (void *)1);
 			dir_page = kmap(page);
 		}
 
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 371d1488cc54..5015f2b10782 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -600,6 +600,63 @@ static int afs_readpages(struct file *file, struct address_space *mapping,
 	return ret;
 }
 
+/*
+ * Adjust the dirty region of the page on truncation or full invalidation,
+ * getting rid of the markers altogether if the region is entirely invalidated.
+ */
+static void afs_invalidate_dirty(struct page *page, unsigned int offset,
+				 unsigned int length)
+{
+	struct afs_vnode *vnode = AFS_FS_I(page->mapping->host);
+	unsigned long priv;
+	unsigned int f, t, end = offset + length;
+
+	priv = page_private(page);
+
+	/* we clean up only if the entire page is being invalidated */
+	if (offset == 0 && length == thp_size(page))
+		goto full_invalidate;
+
+	 /* If the page was dirtied by page_mkwrite(), the PTE stays writable
+	  * and we don't get another notification to tell us to expand it
+	  * again.
+	  */
+	if (afs_is_page_dirty_mmapped(priv))
+		return;
+
+	/* We may need to shorten the dirty region */
+	f = afs_page_dirty_from(priv);
+	t = afs_page_dirty_to(priv);
+
+	if (t <= offset || f >= end)
+		return; /* Doesn't overlap */
+
+	if (f < offset && t > end)
+		return; /* Splits the dirty region - just absorb it */
+
+	if (f >= offset && t <= end)
+		goto undirty;
+
+	if (f < offset)
+		t = offset;
+	else
+		f = end;
+	if (f == t)
+		goto undirty;
+
+	priv = afs_page_dirty(f, t);
+	set_page_private(page, priv);
+	trace_afs_page_dirty(vnode, tracepoint_string("trunc"), page->index, priv);
+	return;
+
+undirty:
+	trace_afs_page_dirty(vnode, tracepoint_string("undirty"), page->index, priv);
+	clear_page_dirty_for_io(page);
+full_invalidate:
+	priv = (unsigned long)detach_page_private(page);
+	trace_afs_page_dirty(vnode, tracepoint_string("inval"), page->index, priv);
+}
+
 /*
  * invalidate part or all of a page
  * - release a page and clean up its private data if offset is 0 (indicating
@@ -608,31 +665,23 @@ static int afs_readpages(struct file *file, struct address_space *mapping,
 static void afs_invalidatepage(struct page *page, unsigned int offset,
 			       unsigned int length)
 {
-	struct afs_vnode *vnode = AFS_FS_I(page->mapping->host);
-	unsigned long priv;
-
 	_enter("{%lu},%u,%u", page->index, offset, length);
 
 	BUG_ON(!PageLocked(page));
 
+#ifdef CONFIG_AFS_FSCACHE
 	/* we clean up only if the entire page is being invalidated */
 	if (offset == 0 && length == PAGE_SIZE) {
-#ifdef CONFIG_AFS_FSCACHE
 		if (PageFsCache(page)) {
 			struct afs_vnode *vnode = AFS_FS_I(page->mapping->host);
 			fscache_wait_on_page_write(vnode->cache, page);
 			fscache_uncache_page(vnode->cache, page);
 		}
+	}
 #endif
 
-		if (PagePrivate(page)) {
-			priv = page_private(page);
-			trace_afs_page_dirty(vnode, tracepoint_string("inval"),
-					     page->index, priv);
-			set_page_private(page, 0);
-			ClearPagePrivate(page);
-		}
-	}
+	if (PagePrivate(page))
+		afs_invalidate_dirty(page, offset, length);
 
 	_leave("");
 }
@@ -660,11 +709,9 @@ static int afs_releasepage(struct page *page, gfp_t gfp_flags)
 #endif
 
 	if (PagePrivate(page)) {
-		priv = page_private(page);
+		priv = (unsigned long)detach_page_private(page);
 		trace_afs_page_dirty(vnode, tracepoint_string("rel"),
 				     page->index, priv);
-		set_page_private(page, 0);
-		ClearPagePrivate(page);
 	}
 
 	/* indicate that the page can be released */
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 06e617ee4cd1..17336cbb8419 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -811,6 +811,7 @@ struct afs_operation {
 			pgoff_t		last;		/* last page in mapping to deal with */
 			unsigned	first_offset;	/* offset into mapping[first] */
 			unsigned	last_to;	/* amount of mapping[last] */
+			bool		laundering;	/* Laundering page, PG_writeback not set */
 		} store;
 		struct {
 			struct iattr	*attr;
@@ -856,6 +857,62 @@ struct afs_vnode_cache_aux {
 	u64			data_version;
 } __packed;
 
+/*
+ * We use page->private to hold the amount of the page that we've written to,
+ * splitting the field into two parts.  However, we need to represent a range
+ * 0...PAGE_SIZE, so we reduce the resolution if the size of the page
+ * exceeds what we can encode.
+ */
+#ifdef CONFIG_64BIT
+#define __AFS_PAGE_PRIV_MASK	0x7fffffffUL
+#define __AFS_PAGE_PRIV_SHIFT	32
+#define __AFS_PAGE_PRIV_MMAPPED	0x80000000UL
+#else
+#define __AFS_PAGE_PRIV_MASK	0x7fffUL
+#define __AFS_PAGE_PRIV_SHIFT	16
+#define __AFS_PAGE_PRIV_MMAPPED	0x8000UL
+#endif
+
+static inline unsigned int afs_page_dirty_resolution(void)
+{
+	int shift = PAGE_SHIFT - (__AFS_PAGE_PRIV_SHIFT - 1);
+	return (shift > 0) ? shift : 0;
+}
+
+static inline size_t afs_page_dirty_from(unsigned long priv)
+{
+	unsigned long x = priv & __AFS_PAGE_PRIV_MASK;
+
+	/* The lower bound is inclusive */
+	return x << afs_page_dirty_resolution();
+}
+
+static inline size_t afs_page_dirty_to(unsigned long priv)
+{
+	unsigned long x = (priv >> __AFS_PAGE_PRIV_SHIFT) & __AFS_PAGE_PRIV_MASK;
+
+	/* The upper bound is immediately beyond the region */
+	return (x + 1) << afs_page_dirty_resolution();
+}
+
+static inline unsigned long afs_page_dirty(size_t from, size_t to)
+{
+	unsigned int res = afs_page_dirty_resolution();
+	from >>= res;
+	to = (to - 1) >> res;
+	return (to << __AFS_PAGE_PRIV_SHIFT) | from;
+}
+
+static inline unsigned long afs_page_dirty_mmapped(unsigned long priv)
+{
+	return priv | __AFS_PAGE_PRIV_MMAPPED;
+}
+
+static inline bool afs_is_page_dirty_mmapped(unsigned long priv)
+{
+	return priv & __AFS_PAGE_PRIV_MMAPPED;
+}
+
 #include <trace/events/afs.h>
 
 /*****************************************************************************/
diff --git a/fs/afs/server.c b/fs/afs/server.c
index e82e452e2612..684a2b02b9ff 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -550,7 +550,12 @@ void afs_manage_servers(struct work_struct *work)
 
 		_debug("manage %pU %u", &server->uuid, active);
 
-		ASSERTIFCMP(purging, active, ==, 0);
+		if (purging) {
+			trace_afs_server(server, atomic_read(&server->ref),
+					 active, afs_server_trace_purging);
+			if (active != 0)
+				pr_notice("Can't purge s=%08x\n", server->debug_id);
+		}
 
 		if (active == 0) {
 			time64_t expire_at = server->unuse_time;
diff --git a/fs/afs/write.c b/fs/afs/write.c
index da12abd6db21..50371207f327 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -76,7 +76,7 @@ static int afs_fill_page(struct afs_vnode *vnode, struct key *key,
  */
 int afs_write_begin(struct file *file, struct address_space *mapping,
 		    loff_t pos, unsigned len, unsigned flags,
-		    struct page **pagep, void **fsdata)
+		    struct page **_page, void **fsdata)
 {
 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));
 	struct page *page;
@@ -90,11 +90,6 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
 	_enter("{%llx:%llu},{%lx},%u,%u",
 	       vnode->fid.vid, vnode->fid.vnode, index, from, to);
 
-	/* We want to store information about how much of a page is altered in
-	 * page->private.
-	 */
-	BUILD_BUG_ON(PAGE_SIZE > 32768 && sizeof(page->private) < 8);
-
 	page = grab_cache_page_write_begin(mapping, index, flags);
 	if (!page)
 		return -ENOMEM;
@@ -110,9 +105,6 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
 		SetPageUptodate(page);
 	}
 
-	/* page won't leak in error case: it eventually gets cleaned off LRU */
-	*pagep = page;
-
 try_again:
 	/* See if this page is already partially written in a way that we can
 	 * merge the new write with.
@@ -120,8 +112,8 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
 	t = f = 0;
 	if (PagePrivate(page)) {
 		priv = page_private(page);
-		f = priv & AFS_PRIV_MAX;
-		t = priv >> AFS_PRIV_SHIFT;
+		f = afs_page_dirty_from(priv);
+		t = afs_page_dirty_to(priv);
 		ASSERTCMP(f, <=, t);
 	}
 
@@ -138,21 +130,9 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
 		if (!test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags) &&
 		    (to < f || from > t))
 			goto flush_conflicting_write;
-		if (from < f)
-			f = from;
-		if (to > t)
-			t = to;
-	} else {
-		f = from;
-		t = to;
 	}
 
-	priv = (unsigned long)t << AFS_PRIV_SHIFT;
-	priv |= f;
-	trace_afs_page_dirty(vnode, tracepoint_string("begin"),
-			     page->index, priv);
-	SetPagePrivate(page);
-	set_page_private(page, priv);
+	*_page = page;
 	_leave(" = 0");
 	return 0;
 
@@ -162,17 +142,18 @@ int afs_write_begin(struct file *file, struct address_space *mapping,
 flush_conflicting_write:
 	_debug("flush conflict");
 	ret = write_one_page(page);
-	if (ret < 0) {
-		_leave(" = %d", ret);
-		return ret;
-	}
+	if (ret < 0)
+		goto error;
 
 	ret = lock_page_killable(page);
-	if (ret < 0) {
-		_leave(" = %d", ret);
-		return ret;
-	}
+	if (ret < 0)
+		goto error;
 	goto try_again;
+
+error:
+	put_page(page);
+	_leave(" = %d", ret);
+	return ret;
 }
 
 /*
@@ -184,6 +165,9 @@ int afs_write_end(struct file *file, struct address_space *mapping,
 {
 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));
 	struct key *key = afs_file_key(file);
+	unsigned long priv;
+	unsigned int f, from = pos & (PAGE_SIZE - 1);
+	unsigned int t, to = from + copied;
 	loff_t i_size, maybe_i_size;
 	int ret;
 
@@ -215,6 +199,25 @@ int afs_write_end(struct file *file, struct address_space *mapping,
 		SetPageUptodate(page);
 	}
 
+	if (PagePrivate(page)) {
+		priv = page_private(page);
+		f = afs_page_dirty_from(priv);
+		t = afs_page_dirty_to(priv);
+		if (from < f)
+			f = from;
+		if (to > t)
+			t = to;
+		priv = afs_page_dirty(f, t);
+		set_page_private(page, priv);
+		trace_afs_page_dirty(vnode, tracepoint_string("dirty+"),
+				     page->index, priv);
+	} else {
+		priv = afs_page_dirty(from, to);
+		attach_page_private(page, (void *)priv);
+		trace_afs_page_dirty(vnode, tracepoint_string("dirty"),
+				     page->index, priv);
+	}
+
 	set_page_dirty(page);
 	if (PageDirty(page))
 		_debug("dirtied");
@@ -334,10 +337,9 @@ static void afs_pages_written_back(struct afs_vnode *vnode,
 		ASSERTCMP(pv.nr, ==, count);
 
 		for (loop = 0; loop < count; loop++) {
-			priv = page_private(pv.pages[loop]);
+			priv = (unsigned long)detach_page_private(pv.pages[loop]);
 			trace_afs_page_dirty(vnode, tracepoint_string("clear"),
 					     pv.pages[loop]->index, priv);
-			set_page_private(pv.pages[loop], 0);
 			end_page_writeback(pv.pages[loop]);
 		}
 		first += count;
@@ -396,7 +398,8 @@ static void afs_store_data_success(struct afs_operation *op)
 	op->ctime = op->file[0].scb.status.mtime_client;
 	afs_vnode_commit_status(op, &op->file[0]);
 	if (op->error == 0) {
-		afs_pages_written_back(vnode, op->store.first, op->store.last);
+		if (!op->store.laundering)
+			afs_pages_written_back(vnode, op->store.first, op->store.last);
 		afs_stat_v(vnode, n_stores);
 		atomic_long_add((op->store.last * PAGE_SIZE + op->store.last_to) -
 				(op->store.first * PAGE_SIZE + op->store.first_offset),
@@ -415,7 +418,7 @@ static const struct afs_operation_ops afs_store_data_operation = {
  */
 static int afs_store_data(struct address_space *mapping,
 			  pgoff_t first, pgoff_t last,
-			  unsigned offset, unsigned to)
+			  unsigned offset, unsigned to, bool laundering)
 {
 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);
 	struct afs_operation *op;
@@ -448,6 +451,7 @@ static int afs_store_data(struct address_space *mapping,
 	op->store.last = last;
 	op->store.first_offset = offset;
 	op->store.last_to = to;
+	op->store.laundering = laundering;
 	op->mtime = vnode->vfs_inode.i_mtime;
 	op->flags |= AFS_OPERATION_UNINTR;
 	op->ops = &afs_store_data_operation;
@@ -509,8 +513,8 @@ static int afs_write_back_from_locked_page(struct address_space *mapping,
 	 */
 	start = primary_page->index;
 	priv = page_private(primary_page);
-	offset = priv & AFS_PRIV_MAX;
-	to = priv >> AFS_PRIV_SHIFT;
+	offset = afs_page_dirty_from(priv);
+	to = afs_page_dirty_to(priv);
 	trace_afs_page_dirty(vnode, tracepoint_string("store"),
 			     primary_page->index, priv);
 
@@ -555,8 +559,8 @@ static int afs_write_back_from_locked_page(struct address_space *mapping,
 			}
 
 			priv = page_private(page);
-			f = priv & AFS_PRIV_MAX;
-			t = priv >> AFS_PRIV_SHIFT;
+			f = afs_page_dirty_from(priv);
+			t = afs_page_dirty_to(priv);
 			if (f != 0 &&
 			    !test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags)) {
 				unlock_page(page);
@@ -601,7 +605,7 @@ static int afs_write_back_from_locked_page(struct address_space *mapping,
 	if (end > i_size)
 		to = i_size & ~PAGE_MASK;
 
-	ret = afs_store_data(mapping, first, last, offset, to);
+	ret = afs_store_data(mapping, first, last, offset, to, false);
 	switch (ret) {
 	case 0:
 		ret = count;
@@ -857,12 +861,14 @@ vm_fault_t afs_page_mkwrite(struct vm_fault *vmf)
 	 */
 	wait_on_page_writeback(vmf->page);
 
-	priv = (unsigned long)PAGE_SIZE << AFS_PRIV_SHIFT; /* To */
-	priv |= 0; /* From */
+	priv = afs_page_dirty(0, PAGE_SIZE);
+	priv = afs_page_dirty_mmapped(priv);
 	trace_afs_page_dirty(vnode, tracepoint_string("mkwrite"),
 			     vmf->page->index, priv);
-	SetPagePrivate(vmf->page);
-	set_page_private(vmf->page, priv);
+	if (PagePrivate(vmf->page))
+		set_page_private(vmf->page, priv);
+	else
+		attach_page_private(vmf->page, (void *)priv);
 	file_update_time(file);
 
 	sb_end_pagefault(inode->i_sb);
@@ -915,19 +921,18 @@ int afs_launder_page(struct page *page)
 		f = 0;
 		t = PAGE_SIZE;
 		if (PagePrivate(page)) {
-			f = priv & AFS_PRIV_MAX;
-			t = priv >> AFS_PRIV_SHIFT;
+			f = afs_page_dirty_from(priv);
+			t = afs_page_dirty_to(priv);
 		}
 
 		trace_afs_page_dirty(vnode, tracepoint_string("launder"),
 				     page->index, priv);
-		ret = afs_store_data(mapping, page->index, page->index, t, f);
+		ret = afs_store_data(mapping, page->index, page->index, t, f, true);
 	}
 
+	priv = (unsigned long)detach_page_private(page);
 	trace_afs_page_dirty(vnode, tracepoint_string("laundered"),
 			     page->index, priv);
-	set_page_private(page, 0);
-	ClearPagePrivate(page);
 
 #ifdef CONFIG_AFS_FSCACHE
 	if (PageFsCache(page)) {
diff --git a/fs/afs/xattr.c b/fs/afs/xattr.c
index 84f3c4f57531..38884d6c57cd 100644
--- a/fs/afs/xattr.c
+++ b/fs/afs/xattr.c
@@ -85,7 +85,7 @@ static int afs_xattr_get_acl(const struct xattr_handler *handler,
 			if (acl->size <= size)
 				memcpy(buffer, acl->data, acl->size);
 			else
-				op->error = -ERANGE;
+				ret = -ERANGE;
 		}
 	}
 
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index ea8aaf36647e..a5347d8dcd76 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -2034,6 +2034,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
 		key.offset = 0;
 		btrfs_release_path(path);
 	}
+	btrfs_release_path(path);
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(space_info, &info->space_info, list) {
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index cd392da69b81..376827b04b0a 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1061,6 +1061,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 
 	ret = update_ref_for_cow(trans, root, buf, cow, &last_ref);
 	if (ret) {
+		btrfs_tree_unlock(cow);
+		free_extent_buffer(cow);
 		btrfs_abort_transaction(trans, ret);
 		return ret;
 	}
@@ -1068,6 +1070,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 	if (test_bit(BTRFS_ROOT_SHAREABLE, &root->state)) {
 		ret = btrfs_reloc_cow_block(trans, root, buf, cow);
 		if (ret) {
+			btrfs_tree_unlock(cow);
+			free_extent_buffer(cow);
 			btrfs_abort_transaction(trans, ret);
 			return ret;
 		}
@@ -1100,6 +1104,8 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 		if (last_ref) {
 			ret = tree_mod_log_free_eb(buf);
 			if (ret) {
+				btrfs_tree_unlock(cow);
+				free_extent_buffer(cow);
 				btrfs_abort_transaction(trans, ret);
 				return ret;
 			}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9a72896bed2e..2f5ab8c47f50 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2619,7 +2619,7 @@ enum btrfs_flush_state {
 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
 				     struct btrfs_block_rsv *rsv,
 				     int nitems, bool use_global_rsv);
-void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
+void btrfs_subvolume_release_metadata(struct btrfs_root *root,
 				      struct btrfs_block_rsv *rsv);
 void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes);
 
@@ -3517,6 +3517,8 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
 int btrfs_reada_wait(void *handle);
 void btrfs_reada_detach(void *handle);
 int btree_readahead_hook(struct extent_buffer *eb, int err);
+void btrfs_reada_remove_dev(struct btrfs_device *dev);
+void btrfs_reada_undo_remove_dev(struct btrfs_device *dev);
 
 static inline int is_fstree(u64 rootid)
 {
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index bf1595a42a98..0727b10a9a89 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -627,8 +627,7 @@ static int btrfs_delayed_inode_reserve_metadata(
 	 */
 	if (!src_rsv || (!trans->bytes_reserved &&
 			 src_rsv->type != BTRFS_BLOCK_RSV_DELALLOC)) {
-		ret = btrfs_qgroup_reserve_meta_prealloc(root,
-				fs_info->nodesize, true);
+		ret = btrfs_qgroup_reserve_meta_prealloc(root, num_bytes, true);
 		if (ret < 0)
 			return ret;
 		ret = btrfs_block_rsv_add(root, dst_rsv, num_bytes,
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index e4a1c6afe35d..b58b33051a89 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -230,7 +230,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
 	int ret = 0;
 
 	*device_out = NULL;
-	if (fs_info->fs_devices->seeding) {
+	if (srcdev->fs_devices->seeding) {
 		btrfs_err(fs_info, "the filesystem is a seed filesystem!");
 		return -EINVAL;
 	}
@@ -668,6 +668,9 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 	}
 	btrfs_wait_ordered_roots(fs_info, U64_MAX, 0, (u64)-1);
 
+	if (!scrub_ret)
+		btrfs_reada_remove_dev(src_device);
+
 	/*
 	 * We have to use this loop approach because at this point src_device
 	 * has to be available for transaction commit to complete, yet new
@@ -676,6 +679,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 	while (1) {
 		trans = btrfs_start_transaction(root, 0);
 		if (IS_ERR(trans)) {
+			btrfs_reada_undo_remove_dev(src_device);
 			mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
 			return PTR_ERR(trans);
 		}
@@ -726,6 +730,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 		up_write(&dev_replace->rwsem);
 		mutex_unlock(&fs_info->chunk_mutex);
 		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
+		btrfs_reada_undo_remove_dev(src_device);
 		btrfs_rm_dev_replace_blocked(fs_info);
 		if (tgt_device)
 			btrfs_destroy_dev_replace_tgtdev(tgt_device);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9f72b092bc22..7882c0764501 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3482,8 +3482,12 @@ struct btrfs_super_block *btrfs_read_dev_one_super(struct block_device *bdev,
 		return ERR_CAST(page);
 
 	super = page_address(page);
-	if (btrfs_super_bytenr(super) != bytenr ||
-		    btrfs_super_magic(super) != BTRFS_MAGIC) {
+	if (btrfs_super_magic(super) != BTRFS_MAGIC) {
+		btrfs_release_disk_super(super);
+		return ERR_PTR(-ENODATA);
+	}
+
+	if (btrfs_super_bytenr(super) != bytenr) {
 		btrfs_release_disk_super(super);
 		return ERR_PTR(-EINVAL);
 	}
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 780b9c9a98fe..dbff61d36cab 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3918,11 +3918,12 @@ static int prepare_allocation(struct btrfs_fs_info *fs_info,
  * |- Push harder to find free extents
  *    |- If not found, re-iterate all block groups
  */
-static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
+static noinline int find_free_extent(struct btrfs_root *root,
 				u64 ram_bytes, u64 num_bytes, u64 empty_size,
 				u64 hint_byte_orig, struct btrfs_key *ins,
 				u64 flags, int delalloc)
 {
+	struct btrfs_fs_info *fs_info = root->fs_info;
 	int ret = 0;
 	int cache_block_group_error = 0;
 	struct btrfs_block_group *block_group = NULL;
@@ -3954,7 +3955,7 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
 	ins->objectid = 0;
 	ins->offset = 0;
 
-	trace_find_free_extent(fs_info, num_bytes, empty_size, flags);
+	trace_find_free_extent(root, num_bytes, empty_size, flags);
 
 	space_info = btrfs_find_space_info(fs_info, flags);
 	if (!space_info) {
@@ -4203,7 +4204,7 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes,
 	flags = get_alloc_profile_by_root(root, is_data);
 again:
 	WARN_ON(num_bytes < fs_info->sectorsize);
-	ret = find_free_extent(fs_info, ram_bytes, num_bytes, empty_size,
+	ret = find_free_extent(root, ram_bytes, num_bytes, empty_size,
 			       hint_byte, ins, flags, delalloc);
 	if (!ret && !is_data) {
 		btrfs_dec_block_group_reservations(fs_info, ins->objectid);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9570458aa847..11d132bc2679 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4051,7 +4051,7 @@ int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry)
 		err = ret;
 	inode->i_flags |= S_DEAD;
 out_release:
-	btrfs_subvolume_release_metadata(fs_info, &block_rsv);
+	btrfs_subvolume_release_metadata(root, &block_rsv);
 out_up_write:
 	up_write(&fs_info->subvol_sem);
 	if (err) {
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 2d9109d9e98f..2a5dc42f0750 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -618,7 +618,7 @@ static noinline int create_subvol(struct inode *dir,
 	trans = btrfs_start_transaction(root, 0);
 	if (IS_ERR(trans)) {
 		ret = PTR_ERR(trans);
-		btrfs_subvolume_release_metadata(fs_info, &block_rsv);
+		btrfs_subvolume_release_metadata(root, &block_rsv);
 		goto fail_free;
 	}
 	trans->block_rsv = &block_rsv;
@@ -742,7 +742,7 @@ static noinline int create_subvol(struct inode *dir,
 	kfree(root_item);
 	trans->block_rsv = NULL;
 	trans->bytes_reserved = 0;
-	btrfs_subvolume_release_metadata(fs_info, &block_rsv);
+	btrfs_subvolume_release_metadata(root, &block_rsv);
 
 	err = btrfs_commit_transaction(trans);
 	if (err && !ret)
@@ -856,7 +856,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 	if (ret && pending_snapshot->snap)
 		pending_snapshot->snap->anon_dev = 0;
 	btrfs_put_root(pending_snapshot->snap);
-	btrfs_subvolume_release_metadata(fs_info, &pending_snapshot->block_rsv);
+	btrfs_subvolume_release_metadata(root, &pending_snapshot->block_rsv);
 free_pending:
 	if (pending_snapshot->anon_dev)
 		free_anon_bdev(pending_snapshot->anon_dev);
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 243a2e44526e..49ff7162d3d0 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -421,6 +421,9 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
 		if (!dev->bdev)
 			continue;
 
+		if (test_bit(BTRFS_DEV_STATE_NO_READA, &dev->dev_state))
+			continue;
+
 		if (dev_replace_is_ongoing &&
 		    dev == fs_info->dev_replace.tgtdev) {
 			/*
@@ -445,6 +448,8 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
 		}
 		have_zone = 1;
 	}
+	if (!have_zone)
+		radix_tree_delete(&fs_info->reada_tree, index);
 	spin_unlock(&fs_info->reada_lock);
 	up_read(&fs_info->dev_replace.rwsem);
 
@@ -1012,3 +1017,45 @@ void btrfs_reada_detach(void *handle)
 
 	kref_put(&rc->refcnt, reada_control_release);
 }
+
+/*
+ * Before removing a device (device replace or device remove ioctls), call this
+ * function to wait for all existing readahead requests on the device and to
+ * make sure no one queues more readahead requests for the device.
+ *
+ * Must be called without holding neither the device list mutex nor the device
+ * replace semaphore, otherwise it will deadlock.
+ */
+void btrfs_reada_remove_dev(struct btrfs_device *dev)
+{
+	struct btrfs_fs_info *fs_info = dev->fs_info;
+
+	/* Serialize with readahead extent creation at reada_find_extent(). */
+	spin_lock(&fs_info->reada_lock);
+	set_bit(BTRFS_DEV_STATE_NO_READA, &dev->dev_state);
+	spin_unlock(&fs_info->reada_lock);
+
+	/*
+	 * There might be readahead requests added to the radix trees which
+	 * were not yet added to the readahead work queue. We need to start
+	 * them and wait for their completion, otherwise we can end up with
+	 * use-after-free problems when dropping the last reference on the
+	 * readahead extents and their zones, as they need to access the
+	 * device structure.
+	 */
+	reada_start_machine(fs_info);
+	btrfs_flush_workqueue(fs_info->readahead_workers);
+}
+
+/*
+ * If when removing a device (device replace or device remove ioctls) an error
+ * happens after calling btrfs_reada_remove_dev(), call this to undo what that
+ * function did. This is safe to call even if btrfs_reada_remove_dev() was not
+ * called before.
+ */
+void btrfs_reada_undo_remove_dev(struct btrfs_device *dev)
+{
+	spin_lock(&dev->fs_info->reada_lock);
+	clear_bit(BTRFS_DEV_STATE_NO_READA, &dev->dev_state);
+	spin_unlock(&dev->fs_info->reada_lock);
+}
diff --git a/fs/btrfs/reflink.c b/fs/btrfs/reflink.c
index 5cd02514cf4d..bcb785d1867c 100644
--- a/fs/btrfs/reflink.c
+++ b/fs/btrfs/reflink.c
@@ -520,6 +520,8 @@ static int btrfs_clone(struct inode *src, struct inode *inode,
 			ret = -EINTR;
 			goto out;
 		}
+
+		cond_resched();
 	}
 	ret = 0;
 
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index c89697486366..702dc5441f03 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -512,11 +512,20 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
 	if (ret && qgroup_num_bytes)
 		btrfs_qgroup_free_meta_prealloc(root, qgroup_num_bytes);
 
+	if (!ret) {
+		spin_lock(&rsv->lock);
+		rsv->qgroup_rsv_reserved += qgroup_num_bytes;
+		spin_unlock(&rsv->lock);
+	}
 	return ret;
 }
 
-void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
+void btrfs_subvolume_release_metadata(struct btrfs_root *root,
 				      struct btrfs_block_rsv *rsv)
 {
-	btrfs_block_rsv_release(fs_info, rsv, (u64)-1, NULL);
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	u64 qgroup_to_release;
+
+	btrfs_block_rsv_release(fs_info, rsv, (u64)-1, &qgroup_to_release);
+	btrfs_qgroup_convert_reserved_meta(root, qgroup_to_release);
 }
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index d9813a5b075a..e357f23fb54a 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3812,6 +3812,72 @@ static int update_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
 	return 0;
 }
 
+/*
+ * When processing the new references for an inode we may orphanize an existing
+ * directory inode because its old name conflicts with one of the new references
+ * of the current inode. Later, when processing another new reference of our
+ * inode, we might need to orphanize another inode, but the path we have in the
+ * reference reflects the pre-orphanization name of the directory we previously
+ * orphanized. For example:
+ *
+ * parent snapshot looks like:
+ *
+ * .                                     (ino 256)
+ * |----- f1                             (ino 257)
+ * |----- f2                             (ino 258)
+ * |----- d1/                            (ino 259)
+ *        |----- d2/                     (ino 260)
+ *
+ * send snapshot looks like:
+ *
+ * .                                     (ino 256)
+ * |----- d1                             (ino 258)
+ * |----- f2/                            (ino 259)
+ *        |----- f2_link/                (ino 260)
+ *        |       |----- f1              (ino 257)
+ *        |
+ *        |----- d2                      (ino 258)
+ *
+ * When processing inode 257 we compute the name for inode 259 as "d1", and we
+ * cache it in the name cache. Later when we start processing inode 258, when
+ * collecting all its new references we set a full path of "d1/d2" for its new
+ * reference with name "d2". When we start processing the new references we
+ * start by processing the new reference with name "d1", and this results in
+ * orphanizing inode 259, since its old reference causes a conflict. Then we
+ * move on the next new reference, with name "d2", and we find out we must
+ * orphanize inode 260, as its old reference conflicts with ours - but for the
+ * orphanization we use a source path corresponding to the path we stored in the
+ * new reference, which is "d1/d2" and not "o259-6-0/d2" - this makes the
+ * receiver fail since the path component "d1/" no longer exists, it was renamed
+ * to "o259-6-0/" when processing the previous new reference. So in this case we
+ * must recompute the path in the new reference and use it for the new
+ * orphanization operation.
+ */
+static int refresh_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
+{
+	char *name;
+	int ret;
+
+	name = kmemdup(ref->name, ref->name_len, GFP_KERNEL);
+	if (!name)
+		return -ENOMEM;
+
+	fs_path_reset(ref->full_path);
+	ret = get_cur_path(sctx, ref->dir, ref->dir_gen, ref->full_path);
+	if (ret < 0)
+		goto out;
+
+	ret = fs_path_add(ref->full_path, name, ref->name_len);
+	if (ret < 0)
+		goto out;
+
+	/* Update the reference's base name pointer. */
+	set_ref_path(ref, ref->full_path);
+out:
+	kfree(name);
+	return ret;
+}
+
 /*
  * This does all the move/link/unlink/rmdir magic.
  */
@@ -3880,52 +3946,56 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 			goto out;
 	}
 
+	/*
+	 * Before doing any rename and link operations, do a first pass on the
+	 * new references to orphanize any unprocessed inodes that may have a
+	 * reference that conflicts with one of the new references of the current
+	 * inode. This needs to happen first because a new reference may conflict
+	 * with the old reference of a parent directory, so we must make sure
+	 * that the path used for link and rename commands don't use an
+	 * orphanized name when an ancestor was not yet orphanized.
+	 *
+	 * Example:
+	 *
+	 * Parent snapshot:
+	 *
+	 * .                                                      (ino 256)
+	 * |----- testdir/                                        (ino 259)
+	 * |          |----- a                                    (ino 257)
+	 * |
+	 * |----- b                                               (ino 258)
+	 *
+	 * Send snapshot:
+	 *
+	 * .                                                      (ino 256)
+	 * |----- testdir_2/                                      (ino 259)
+	 * |          |----- a                                    (ino 260)
+	 * |
+	 * |----- testdir                                         (ino 257)
+	 * |----- b                                               (ino 257)
+	 * |----- b2                                              (ino 258)
+	 *
+	 * Processing the new reference for inode 257 with name "b" may happen
+	 * before processing the new reference with name "testdir". If so, we
+	 * must make sure that by the time we send a link command to create the
+	 * hard link "b", inode 259 was already orphanized, since the generated
+	 * path in "valid_path" already contains the orphanized name for 259.
+	 * We are processing inode 257, so only later when processing 259 we do
+	 * the rename operation to change its temporary (orphanized) name to
+	 * "testdir_2".
+	 */
 	list_for_each_entry(cur, &sctx->new_refs, list) {
-		/*
-		 * We may have refs where the parent directory does not exist
-		 * yet. This happens if the parent directories inum is higher
-		 * than the current inum. To handle this case, we create the
-		 * parent directory out of order. But we need to check if this
-		 * did already happen before due to other refs in the same dir.
-		 */
 		ret = get_cur_inode_state(sctx, cur->dir, cur->dir_gen);
 		if (ret < 0)
 			goto out;
-		if (ret == inode_state_will_create) {
-			ret = 0;
-			/*
-			 * First check if any of the current inodes refs did
-			 * already create the dir.
-			 */
-			list_for_each_entry(cur2, &sctx->new_refs, list) {
-				if (cur == cur2)
-					break;
-				if (cur2->dir == cur->dir) {
-					ret = 1;
-					break;
-				}
-			}
-
-			/*
-			 * If that did not happen, check if a previous inode
-			 * did already create the dir.
-			 */
-			if (!ret)
-				ret = did_create_dir(sctx, cur->dir);
-			if (ret < 0)
-				goto out;
-			if (!ret) {
-				ret = send_create_inode(sctx, cur->dir);
-				if (ret < 0)
-					goto out;
-			}
-		}
+		if (ret == inode_state_will_create)
+			continue;
 
 		/*
-		 * Check if this new ref would overwrite the first ref of
-		 * another unprocessed inode. If yes, orphanize the
-		 * overwritten inode. If we find an overwritten ref that is
-		 * not the first ref, simply unlink it.
+		 * Check if this new ref would overwrite the first ref of another
+		 * unprocessed inode. If yes, orphanize the overwritten inode.
+		 * If we find an overwritten ref that is not the first ref,
+		 * simply unlink it.
 		 */
 		ret = will_overwrite_ref(sctx, cur->dir, cur->dir_gen,
 				cur->name, cur->name_len,
@@ -3942,6 +4012,12 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 				struct name_cache_entry *nce;
 				struct waiting_dir_move *wdm;
 
+				if (orphanized_dir) {
+					ret = refresh_ref_path(sctx, cur);
+					if (ret < 0)
+						goto out;
+				}
+
 				ret = orphanize_inode(sctx, ow_inode, ow_gen,
 						cur->full_path);
 				if (ret < 0)
@@ -4004,6 +4080,49 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 			}
 		}
 
+	}
+
+	list_for_each_entry(cur, &sctx->new_refs, list) {
+		/*
+		 * We may have refs where the parent directory does not exist
+		 * yet. This happens if the parent directories inum is higher
+		 * than the current inum. To handle this case, we create the
+		 * parent directory out of order. But we need to check if this
+		 * did already happen before due to other refs in the same dir.
+		 */
+		ret = get_cur_inode_state(sctx, cur->dir, cur->dir_gen);
+		if (ret < 0)
+			goto out;
+		if (ret == inode_state_will_create) {
+			ret = 0;
+			/*
+			 * First check if any of the current inodes refs did
+			 * already create the dir.
+			 */
+			list_for_each_entry(cur2, &sctx->new_refs, list) {
+				if (cur == cur2)
+					break;
+				if (cur2->dir == cur->dir) {
+					ret = 1;
+					break;
+				}
+			}
+
+			/*
+			 * If that did not happen, check if a previous inode
+			 * did already create the dir.
+			 */
+			if (!ret)
+				ret = did_create_dir(sctx, cur->dir);
+			if (ret < 0)
+				goto out;
+			if (!ret) {
+				ret = send_create_inode(sctx, cur->dir);
+				if (ret < 0)
+					goto out;
+			}
+		}
+
 		if (S_ISDIR(sctx->cur_inode_mode) && sctx->parent_root) {
 			ret = wait_for_dest_dir_move(sctx, cur, is_orphan);
 			if (ret < 0)
@@ -7181,7 +7300,7 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
 
 	alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1);
 
-	sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL);
+	sctx->clone_roots = kvzalloc(alloc_size, GFP_KERNEL);
 	if (!sctx->clone_roots) {
 		ret = -ENOMEM;
 		goto out;
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 7b1fee630f97..8784b74f5232 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -760,18 +760,36 @@ int btrfs_check_chunk_valid(struct extent_buffer *leaf,
 	u64 type;
 	u64 features;
 	bool mixed = false;
+	int raid_index;
+	int nparity;
+	int ncopies;
 
 	length = btrfs_chunk_length(leaf, chunk);
 	stripe_len = btrfs_chunk_stripe_len(leaf, chunk);
 	num_stripes = btrfs_chunk_num_stripes(leaf, chunk);
 	sub_stripes = btrfs_chunk_sub_stripes(leaf, chunk);
 	type = btrfs_chunk_type(leaf, chunk);
+	raid_index = btrfs_bg_flags_to_raid_index(type);
+	ncopies = btrfs_raid_array[raid_index].ncopies;
+	nparity = btrfs_raid_array[raid_index].nparity;
 
 	if (!num_stripes) {
 		chunk_err(leaf, chunk, logical,
 			  "invalid chunk num_stripes, have %u", num_stripes);
 		return -EUCLEAN;
 	}
+	if (num_stripes < ncopies) {
+		chunk_err(leaf, chunk, logical,
+			  "invalid chunk num_stripes < ncopies, have %u < %d",
+			  num_stripes, ncopies);
+		return -EUCLEAN;
+	}
+	if (nparity && num_stripes == nparity) {
+		chunk_err(leaf, chunk, logical,
+			  "invalid chunk num_stripes == nparity, have %u == %d",
+			  num_stripes, nparity);
+		return -EUCLEAN;
+	}
 	if (!IS_ALIGNED(logical, fs_info->sectorsize)) {
 		chunk_err(leaf, chunk, logical,
 		"invalid chunk logical, have %llu should aligned to %u",
@@ -1035,7 +1053,7 @@ static int check_root_item(struct extent_buffer *leaf, struct btrfs_key *key,
 			   int slot)
 {
 	struct btrfs_fs_info *fs_info = leaf->fs_info;
-	struct btrfs_root_item ri;
+	struct btrfs_root_item ri = { 0 };
 	const u64 valid_root_flags = BTRFS_ROOT_SUBVOL_RDONLY |
 				     BTRFS_ROOT_SUBVOL_DEAD;
 	int ret;
@@ -1044,14 +1062,21 @@ static int check_root_item(struct extent_buffer *leaf, struct btrfs_key *key,
 	if (ret < 0)
 		return ret;
 
-	if (btrfs_item_size_nr(leaf, slot) != sizeof(ri)) {
+	if (btrfs_item_size_nr(leaf, slot) != sizeof(ri) &&
+	    btrfs_item_size_nr(leaf, slot) != btrfs_legacy_root_item_size()) {
 		generic_err(leaf, slot,
-			    "invalid root item size, have %u expect %zu",
-			    btrfs_item_size_nr(leaf, slot), sizeof(ri));
+			    "invalid root item size, have %u expect %zu or %u",
+			    btrfs_item_size_nr(leaf, slot), sizeof(ri),
+			    btrfs_legacy_root_item_size());
 	}
 
+	/*
+	 * For legacy root item, the members starting at generation_v2 will be
+	 * all filled with 0.
+	 * And since we allow geneartion_v2 as 0, it will still pass the check.
+	 */
 	read_extent_buffer(leaf, &ri, btrfs_item_ptr_offset(leaf, slot),
-			   sizeof(ri));
+			   btrfs_item_size_nr(leaf, slot));
 
 	/* Generation related */
 	if (btrfs_root_generation(&ri) >
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 39da9db35278..a6f061fcd300 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3615,6 +3615,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 	 * search and this search we'll not find the key again and can just
 	 * bail.
 	 */
+search:
 	ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0);
 	if (ret != 0)
 		goto done;
@@ -3634,6 +3635,13 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 
 			if (min_key.objectid != ino || min_key.type != key_type)
 				goto done;
+
+			if (need_resched()) {
+				btrfs_release_path(path);
+				cond_resched();
+				goto search;
+			}
+
 			ret = overwrite_item(trans, log, dst_path, src, i,
 					     &min_key);
 			if (ret) {
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index e61c298ce2b4..309734fdd158 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -942,16 +942,18 @@ static noinline struct btrfs_device *device_list_add(const char *path,
 				bdput(path_bdev);
 				mutex_unlock(&fs_devices->device_list_mutex);
 				btrfs_warn_in_rcu(device->fs_info,
-			"duplicate device fsid:devid for %pU:%llu old:%s new:%s",
-					disk_super->fsid, devid,
-					rcu_str_deref(device->name), path);
+	"duplicate device %s devid %llu generation %llu scanned by %s (%d)",
+						  path, devid, found_transid,
+						  current->comm,
+						  task_pid_nr(current));
 				return ERR_PTR(-EEXIST);
 			}
 			bdput(path_bdev);
 			btrfs_info_in_rcu(device->fs_info,
-				"device fsid %pU devid %llu moved old:%s new:%s",
-				disk_super->fsid, devid,
-				rcu_str_deref(device->name), path);
+	"devid %llu device path %s changed to %s scanned by %s (%d)",
+					  devid, rcu_str_deref(device->name),
+					  path, current->comm,
+					  task_pid_nr(current));
 		}
 
 		name = rcu_string_strdup(path, GFP_NOFS);
@@ -1198,17 +1200,23 @@ static int open_fs_devices(struct btrfs_fs_devices *fs_devices,
 {
 	struct btrfs_device *device;
 	struct btrfs_device *latest_dev = NULL;
+	struct btrfs_device *tmp_device;
 
 	flags |= FMODE_EXCL;
 
-	list_for_each_entry(device, &fs_devices->devices, dev_list) {
-		/* Just open everything we can; ignore failures here */
-		if (btrfs_open_one_device(fs_devices, device, flags, holder))
-			continue;
+	list_for_each_entry_safe(device, tmp_device, &fs_devices->devices,
+				 dev_list) {
+		int ret;
 
-		if (!latest_dev ||
-		    device->generation > latest_dev->generation)
+		ret = btrfs_open_one_device(fs_devices, device, flags, holder);
+		if (ret == 0 &&
+		    (!latest_dev || device->generation > latest_dev->generation)) {
 			latest_dev = device;
+		} else if (ret == -ENODATA) {
+			fs_devices->num_devices--;
+			list_del(&device->dev_list);
+			btrfs_free_device(device);
+		}
 	}
 	if (fs_devices->open_devices == 0)
 		return -EINVAL;
@@ -2096,6 +2104,8 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
 
 	mutex_unlock(&uuid_mutex);
 	ret = btrfs_shrink_device(device, 0);
+	if (!ret)
+		btrfs_reada_remove_dev(device);
 	mutex_lock(&uuid_mutex);
 	if (ret)
 		goto error_undo;
@@ -2183,6 +2193,7 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
 	return ret;
 
 error_undo:
+	btrfs_reada_undo_remove_dev(device);
 	if (test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state)) {
 		mutex_lock(&fs_info->chunk_mutex);
 		list_add(&device->dev_alloc_list,
@@ -2611,9 +2622,6 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	btrfs_set_super_num_devices(fs_info->super_copy,
 				    orig_super_num_devices + 1);
 
-	/* add sysfs device entry */
-	btrfs_sysfs_add_devices_dir(fs_devices, device);
-
 	/*
 	 * we've got more storage, clear any full flags on the space
 	 * infos
@@ -2621,6 +2629,10 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	btrfs_clear_space_info_full(fs_info);
 
 	mutex_unlock(&fs_info->chunk_mutex);
+
+	/* Add sysfs device entry */
+	btrfs_sysfs_add_devices_dir(fs_devices, device);
+
 	mutex_unlock(&fs_devices->device_list_mutex);
 
 	if (seeding_dev) {
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 302c9234f7d0..2a33a6af289b 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -50,6 +50,7 @@ struct btrfs_io_geometry {
 #define BTRFS_DEV_STATE_MISSING		(2)
 #define BTRFS_DEV_STATE_REPLACE_TGT	(3)
 #define BTRFS_DEV_STATE_FLUSH_SENT	(4)
+#define BTRFS_DEV_STATE_NO_READA	(5)
 
 struct btrfs_device {
 	struct list_head dev_list; /* device_list_mutex */
diff --git a/fs/buffer.c b/fs/buffer.c
index 50bbc99e3d96..5a28a6aa7f16 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2771,16 +2771,6 @@ int nobh_writepage(struct page *page, get_block_t *get_block,
 	/* Is the page fully outside i_size? (truncate in progress) */
 	offset = i_size & (PAGE_SIZE-1);
 	if (page->index >= end_index+1 || !offset) {
-		/*
-		 * The page may have dirty, unmapped buffers.  For example,
-		 * they may have been added in ext3_writepage().  Make them
-		 * freeable here, so the page does not leak.
-		 */
-#if 0
-		/* Not really sure about this  - do we need this ? */
-		if (page->mapping->a_ops->invalidatepage)
-			page->mapping->a_ops->invalidatepage(page, offset);
-#endif
 		unlock_page(page);
 		return 0; /* don't care */
 	}
@@ -2975,12 +2965,6 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
 	/* Is the page fully outside i_size? (truncate in progress) */
 	offset = i_size & (PAGE_SIZE-1);
 	if (page->index >= end_index+1 || !offset) {
-		/*
-		 * The page may have dirty, unmapped buffers.  For example,
-		 * they may have been added in ext3_writepage().  Make them
-		 * freeable here, so the page does not leak.
-		 */
-		do_invalidatepage(page, 0, PAGE_SIZE);
 		unlock_page(page);
 		return 0; /* don't care */
 	}
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 3080cda9e824..8bda092e60c5 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -121,7 +121,7 @@ static int cachefiles_read_reissue(struct cachefiles_object *object,
 		_debug("reissue read");
 		ret = bmapping->a_ops->readpage(NULL, backpage);
 		if (ret < 0)
-			goto unlock_discard;
+			goto discard;
 	}
 
 	/* but the page may have been read before the monitor was installed, so
@@ -138,6 +138,7 @@ static int cachefiles_read_reissue(struct cachefiles_object *object,
 
 unlock_discard:
 	unlock_page(backpage);
+discard:
 	spin_lock_irq(&object->work_lock);
 	list_del(&monitor->op_link);
 	spin_unlock_irq(&object->work_lock);
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6ea761c84494..970e5a094035 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1522,7 +1522,7 @@ static vm_fault_t ceph_filemap_fault(struct vm_fault *vmf)
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_file_info *fi = vma->vm_file->private_data;
 	struct page *pinned_page = NULL;
-	loff_t off = vmf->pgoff << PAGE_SHIFT;
+	loff_t off = (loff_t)vmf->pgoff << PAGE_SHIFT;
 	int want, got, err;
 	sigset_t oldset;
 	vm_fault_t ret = VM_FAULT_SIGBUS;
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4a26862d7667..76d8d9495d1d 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3612,6 +3612,39 @@ static int send_reconnect_partial(struct ceph_reconnect_state *recon_state)
 	return err;
 }
 
+static struct dentry* d_find_primary(struct inode *inode)
+{
+	struct dentry *alias, *dn = NULL;
+
+	if (hlist_empty(&inode->i_dentry))
+		return NULL;
+
+	spin_lock(&inode->i_lock);
+	if (hlist_empty(&inode->i_dentry))
+		goto out_unlock;
+
+	if (S_ISDIR(inode->i_mode)) {
+		alias = hlist_entry(inode->i_dentry.first, struct dentry, d_u.d_alias);
+		if (!IS_ROOT(alias))
+			dn = dget(alias);
+		goto out_unlock;
+	}
+
+	hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
+		spin_lock(&alias->d_lock);
+		if (!d_unhashed(alias) &&
+		    (ceph_dentry(alias)->flags & CEPH_DENTRY_PRIMARY_LINK)) {
+			dn = dget_dlock(alias);
+		}
+		spin_unlock(&alias->d_lock);
+		if (dn)
+			break;
+	}
+out_unlock:
+	spin_unlock(&inode->i_lock);
+	return dn;
+}
+
 /*
  * Encode information about a cap for a reconnect with the MDS.
  */
@@ -3625,13 +3658,32 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	struct ceph_inode_info *ci = cap->ci;
 	struct ceph_reconnect_state *recon_state = arg;
 	struct ceph_pagelist *pagelist = recon_state->pagelist;
-	int err;
+	struct dentry *dentry;
+	char *path;
+	int pathlen, err;
+	u64 pathbase;
 	u64 snap_follows;
 
 	dout(" adding %p ino %llx.%llx cap %p %lld %s\n",
 	     inode, ceph_vinop(inode), cap, cap->cap_id,
 	     ceph_cap_string(cap->issued));
 
+	dentry = d_find_primary(inode);
+	if (dentry) {
+		/* set pathbase to parent dir when msg_version >= 2 */
+		path = ceph_mdsc_build_path(dentry, &pathlen, &pathbase,
+					    recon_state->msg_version >= 2);
+		dput(dentry);
+		if (IS_ERR(path)) {
+			err = PTR_ERR(path);
+			goto out_err;
+		}
+	} else {
+		path = NULL;
+		pathlen = 0;
+		pathbase = 0;
+	}
+
 	spin_lock(&ci->i_ceph_lock);
 	cap->seq = 0;        /* reset cap seq */
 	cap->issue_seq = 0;  /* and issue_seq */
@@ -3652,7 +3704,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		rec.v2.wanted = cpu_to_le32(__ceph_caps_wanted(ci));
 		rec.v2.issued = cpu_to_le32(cap->issued);
 		rec.v2.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
-		rec.v2.pathbase = 0;
+		rec.v2.pathbase = cpu_to_le64(pathbase);
 		rec.v2.flock_len = (__force __le32)
 			((ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1);
 	} else {
@@ -3663,7 +3715,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		ceph_encode_timespec64(&rec.v1.mtime, &inode->i_mtime);
 		ceph_encode_timespec64(&rec.v1.atime, &inode->i_atime);
 		rec.v1.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
-		rec.v1.pathbase = 0;
+		rec.v1.pathbase = cpu_to_le64(pathbase);
 	}
 
 	if (list_empty(&ci->i_cap_snaps)) {
@@ -3725,7 +3777,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 			    sizeof(struct ceph_filelock);
 		rec.v2.flock_len = cpu_to_le32(struct_len);
 
-		struct_len += sizeof(u32) + sizeof(rec.v2);
+		struct_len += sizeof(u32) + pathlen + sizeof(rec.v2);
 
 		if (struct_v >= 2)
 			struct_len += sizeof(u64); /* snap_follows */
@@ -3749,7 +3801,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 			ceph_pagelist_encode_8(pagelist, 1);
 			ceph_pagelist_encode_32(pagelist, struct_len);
 		}
-		ceph_pagelist_encode_string(pagelist, NULL, 0);
+		ceph_pagelist_encode_string(pagelist, path, pathlen);
 		ceph_pagelist_append(pagelist, &rec, sizeof(rec.v2));
 		ceph_locks_to_pagelist(flocks, pagelist,
 				       num_fcntl_locks, num_flock_locks);
@@ -3758,39 +3810,20 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 out_freeflocks:
 		kfree(flocks);
 	} else {
-		u64 pathbase = 0;
-		int pathlen = 0;
-		char *path = NULL;
-		struct dentry *dentry;
-
-		dentry = d_find_alias(inode);
-		if (dentry) {
-			path = ceph_mdsc_build_path(dentry,
-						&pathlen, &pathbase, 0);
-			dput(dentry);
-			if (IS_ERR(path)) {
-				err = PTR_ERR(path);
-				goto out_err;
-			}
-			rec.v1.pathbase = cpu_to_le64(pathbase);
-		}
-
 		err = ceph_pagelist_reserve(pagelist,
 					    sizeof(u64) + sizeof(u32) +
 					    pathlen + sizeof(rec.v1));
-		if (err) {
-			goto out_freepath;
-		}
+		if (err)
+			goto out_err;
 
 		ceph_pagelist_encode_64(pagelist, ceph_ino(inode));
 		ceph_pagelist_encode_string(pagelist, path, pathlen);
 		ceph_pagelist_append(pagelist, &rec, sizeof(rec.v1));
-out_freepath:
-		ceph_mdsc_free_path(path, pathlen);
 	}
 
 out_err:
-	if (err >= 0)
+	ceph_mdsc_free_path(path, pathlen);
+	if (!err)
 		recon_state->nr_caps++;
 	return err;
 }
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index b565d83ba89e..5a491afafacc 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -510,6 +510,8 @@ struct smb_version_operations {
 		      struct fiemap_extent_info *, u64, u64);
 	/* version specific llseek implementation */
 	loff_t (*llseek)(struct file *, struct cifs_tcon *, loff_t, int);
+	/* Check for STATUS_IO_TIMEOUT */
+	bool (*is_status_io_timeout)(char *buf);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 9817a31a39db..b8780a79a42a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -69,6 +69,9 @@ extern bool disable_legacy_dialects;
 #define TLINK_ERROR_EXPIRE	(1 * HZ)
 #define TLINK_IDLE_EXPIRE	(600 * HZ)
 
+/* Drop the connection to not overload the server */
+#define NUM_STATUS_IO_TIMEOUT   5
+
 enum {
 	/* Mount options that take no arguments */
 	Opt_user_xattr, Opt_nouser_xattr,
@@ -1117,7 +1120,7 @@ cifs_demultiplex_thread(void *p)
 	struct task_struct *task_to_wake = NULL;
 	struct mid_q_entry *mids[MAX_COMPOUND];
 	char *bufs[MAX_COMPOUND];
-	unsigned int noreclaim_flag;
+	unsigned int noreclaim_flag, num_io_timeout = 0;
 
 	noreclaim_flag = memalloc_noreclaim_save();
 	cifs_dbg(FYI, "Demultiplex PID: %d\n", task_pid_nr(current));
@@ -1213,6 +1216,16 @@ cifs_demultiplex_thread(void *p)
 			continue;
 		}
 
+		if (server->ops->is_status_io_timeout &&
+		    server->ops->is_status_io_timeout(buf)) {
+			num_io_timeout++;
+			if (num_io_timeout > NUM_STATUS_IO_TIMEOUT) {
+				cifs_reconnect(server);
+				num_io_timeout = 0;
+				continue;
+			}
+		}
+
 		server->lstrp = jiffies;
 
 		for (i = 0; i < num_mids; i++) {
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 1f75b25e559a..daec31be8571 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2883,13 +2883,18 @@ cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
 	struct cifs_tcon *pTcon = cifs_sb_master_tcon(cifs_sb);
+	int rc, retries = 0;
 
-	if (pTcon->unix_ext)
-		return cifs_setattr_unix(direntry, attrs);
-
-	return cifs_setattr_nounix(direntry, attrs);
+	do {
+		if (pTcon->unix_ext)
+			rc = cifs_setattr_unix(direntry, attrs);
+		else
+			rc = cifs_setattr_nounix(direntry, attrs);
+		retries++;
+	} while (is_retryable_error(rc) && retries < 2);
 
 	/* BB: add cifs_setattr_legacy for really old servers */
+	return rc;
 }
 
 #if 0
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 7fde3775cb57..b004cf87692a 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -488,7 +488,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
 	{STATUS_PIPE_CONNECTED, -EIO, "STATUS_PIPE_CONNECTED"},
 	{STATUS_PIPE_LISTENING, -EIO, "STATUS_PIPE_LISTENING"},
 	{STATUS_INVALID_READ_MODE, -EIO, "STATUS_INVALID_READ_MODE"},
-	{STATUS_IO_TIMEOUT, -ETIMEDOUT, "STATUS_IO_TIMEOUT"},
+	{STATUS_IO_TIMEOUT, -EAGAIN, "STATUS_IO_TIMEOUT"},
 	{STATUS_FILE_FORCED_CLOSED, -EIO, "STATUS_FILE_FORCED_CLOSED"},
 	{STATUS_PROFILING_NOT_STARTED, -EIO, "STATUS_PROFILING_NOT_STARTED"},
 	{STATUS_PROFILING_NOT_STOPPED, -EIO, "STATUS_PROFILING_NOT_STOPPED"},
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 09e1cd320ee5..e2e53652193e 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2346,6 +2346,17 @@ smb2_is_session_expired(char *buf)
 	return true;
 }
 
+static bool
+smb2_is_status_io_timeout(char *buf)
+{
+	struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf;
+
+	if (shdr->Status == STATUS_IO_TIMEOUT)
+		return true;
+	else
+		return false;
+}
+
 static int
 smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
 		     struct cifsInodeInfo *cinode)
@@ -4816,6 +4827,7 @@ struct smb_version_operations smb20_operations = {
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
 	.llseek = smb3_llseek,
+	.is_status_io_timeout = smb2_is_status_io_timeout,
 };
 
 struct smb_version_operations smb21_operations = {
@@ -4916,6 +4928,7 @@ struct smb_version_operations smb21_operations = {
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
 	.llseek = smb3_llseek,
+	.is_status_io_timeout = smb2_is_status_io_timeout,
 };
 
 struct smb_version_operations smb30_operations = {
@@ -5026,6 +5039,7 @@ struct smb_version_operations smb30_operations = {
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
 	.llseek = smb3_llseek,
+	.is_status_io_timeout = smb2_is_status_io_timeout,
 };
 
 struct smb_version_operations smb311_operations = {
@@ -5137,6 +5151,7 @@ struct smb_version_operations smb311_operations = {
 	.make_node = smb2_make_node,
 	.fiemap = smb3_fiemap,
 	.llseek = smb3_llseek,
+	.is_status_io_timeout = smb2_is_status_io_timeout,
 };
 
 struct smb_version_values smb20_values = {
diff --git a/fs/exec.c b/fs/exec.c
index 07910f5032e7..529c3bcefb65 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -955,6 +955,7 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
 {
 	loff_t i_size, pos;
 	ssize_t bytes = 0;
+	void *allocated = NULL;
 	int ret;
 
 	if (!S_ISREG(file_inode(file)->i_mode) || max_size < 0)
@@ -978,8 +979,8 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
 		goto out;
 	}
 
-	if (id != READING_FIRMWARE_PREALLOC_BUFFER)
-		*buf = vmalloc(i_size);
+	if (!*buf)
+		*buf = allocated = vmalloc(i_size);
 	if (!*buf) {
 		ret = -ENOMEM;
 		goto out;
@@ -1008,7 +1009,7 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
 
 out_free:
 	if (ret < 0) {
-		if (id != READING_FIRMWARE_PREALLOC_BUFFER) {
+		if (allocated) {
 			vfree(*buf);
 			*buf = NULL;
 		}
@@ -1131,11 +1132,24 @@ static int exec_mmap(struct mm_struct *mm)
 	}
 
 	task_lock(tsk);
-	active_mm = tsk->active_mm;
 	membarrier_exec_mmap(mm);
-	tsk->mm = mm;
+
+	local_irq_disable();
+	active_mm = tsk->active_mm;
 	tsk->active_mm = mm;
+	tsk->mm = mm;
+	/*
+	 * This prevents preemption while active_mm is being loaded and
+	 * it and mm are being updated, which could cause problems for
+	 * lazy tlb mm refcounting when these are updated by context
+	 * switches. Not all architectures can handle irqs off over
+	 * activate_mm yet.
+	 */
+	if (!IS_ENABLED(CONFIG_ARCH_WANT_IRQS_OFF_ACTIVATE_MM))
+		local_irq_enable();
 	activate_mm(active_mm, mm);
+	if (IS_ENABLED(CONFIG_ARCH_WANT_IRQS_OFF_ACTIVATE_MM))
+		local_irq_enable();
 	tsk->mm->vmacache_seqnum = 0;
 	vmacache_flush(tsk);
 	task_unlock(tsk);
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 48c3df47748d..8e7e9715cde9 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -494,6 +494,7 @@ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group,
 	 * submit the buffer_head for reading
 	 */
 	set_buffer_new(bh);
+	clear_buffer_verified(bh);
 	trace_ext4_read_block_bitmap_load(sb, block_group, ignore_locked);
 	bh->b_end_io = ext4_end_bitmap_read;
 	get_bh(bh);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index a0481582187a..9e506129ea36 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -501,6 +501,7 @@ __read_extent_tree_block(const char *function, unsigned int line,
 
 	if (!bh_uptodate_or_lock(bh)) {
 		trace_ext4_ext_load_extent(inode, pblk, _RET_IP_);
+		clear_buffer_verified(bh);
 		err = bh_submit_read(bh);
 		if (err < 0)
 			goto errout;
@@ -1471,16 +1472,16 @@ static int ext4_ext_search_left(struct inode *inode,
 }
 
 /*
- * search the closest allocated block to the right for *logical
- * and returns it at @logical + it's physical address at @phys
- * if *logical is the largest allocated block, the function
- * returns 0 at @phys
- * return value contains 0 (success) or error code
+ * Search the closest allocated block to the right for *logical
+ * and returns it at @logical + it's physical address at @phys.
+ * If not exists, return 0 and @phys is set to 0. We will return
+ * 1 which means we found an allocated block and ret_ex is valid.
+ * Or return a (< 0) error code.
  */
 static int ext4_ext_search_right(struct inode *inode,
 				 struct ext4_ext_path *path,
 				 ext4_lblk_t *logical, ext4_fsblk_t *phys,
-				 struct ext4_extent **ret_ex)
+				 struct ext4_extent *ret_ex)
 {
 	struct buffer_head *bh = NULL;
 	struct ext4_extent_header *eh;
@@ -1574,10 +1575,11 @@ static int ext4_ext_search_right(struct inode *inode,
 found_extent:
 	*logical = le32_to_cpu(ex->ee_block);
 	*phys = ext4_ext_pblock(ex);
-	*ret_ex = ex;
+	if (ret_ex)
+		*ret_ex = *ex;
 	if (bh)
 		put_bh(bh);
-	return 0;
+	return 1;
 }
 
 /*
@@ -2868,8 +2870,8 @@ int ext4_ext_remove_space(struct inode *inode, ext4_lblk_t start,
 			 */
 			lblk = ex_end + 1;
 			err = ext4_ext_search_right(inode, path, &lblk, &pblk,
-						    &ex);
-			if (err)
+						    NULL);
+			if (err < 0)
 				goto out;
 			if (pblk) {
 				partial.pclu = EXT4_B2C(sbi, pblk);
@@ -4037,7 +4039,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 			struct ext4_map_blocks *map, int flags)
 {
 	struct ext4_ext_path *path = NULL;
-	struct ext4_extent newex, *ex, *ex2;
+	struct ext4_extent newex, *ex, ex2;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	ext4_fsblk_t newblock = 0, pblk;
 	int err = 0, depth, ret;
@@ -4173,15 +4175,14 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 	if (err)
 		goto out;
 	ar.lright = map->m_lblk;
-	ex2 = NULL;
 	err = ext4_ext_search_right(inode, path, &ar.lright, &ar.pright, &ex2);
-	if (err)
+	if (err < 0)
 		goto out;
 
 	/* Check if the extent after searching to the right implies a
 	 * cluster we can use. */
-	if ((sbi->s_cluster_ratio > 1) && ex2 &&
-	    get_implied_cluster_alloc(inode->i_sb, map, ex2, path)) {
+	if ((sbi->s_cluster_ratio > 1) && err &&
+	    get_implied_cluster_alloc(inode->i_sb, map, &ex2, path)) {
 		ar.len = allocated = map->m_len;
 		newblock = map->m_pblk;
 		goto got_allocated_blocks;
@@ -4769,7 +4770,7 @@ int ext4_convert_unwritten_extents(handle_t *handle, struct inode *inode,
 
 int ext4_convert_unwritten_io_end_vec(handle_t *handle, ext4_io_end_t *io_end)
 {
-	int ret, err = 0;
+	int ret = 0, err = 0;
 	struct ext4_io_end_vec *io_end_vec;
 
 	/*
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index df25d38d6539..20cda952c621 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -188,6 +188,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
 	/*
 	 * submit the buffer_head for reading
 	 */
+	clear_buffer_verified(bh);
 	trace_ext4_load_inode_bitmap(sb, block_group);
 	bh->b_end_io = ext4_end_bitmap_read;
 	get_bh(bh);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index bf596467c234..16a8c29256cd 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -884,6 +884,7 @@ struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
 		return bh;
 	if (!bh || ext4_buffer_uptodate(bh))
 		return bh;
+	clear_buffer_verified(bh);
 	ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1, &bh);
 	wait_on_buffer(bh);
 	if (buffer_uptodate(bh))
@@ -909,9 +910,11 @@ int ext4_bread_batch(struct inode *inode, ext4_lblk_t block, int bh_count,
 
 	for (i = 0; i < bh_count; i++)
 		/* Note that NULL bhs[i] is valid because of holes. */
-		if (bhs[i] && !ext4_buffer_uptodate(bhs[i]))
+		if (bhs[i] && !ext4_buffer_uptodate(bhs[i])) {
+			clear_buffer_verified(bhs[i]);
 			ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1,
 				    &bhs[i]);
+		}
 
 	if (!wait)
 		return 0;
@@ -2254,7 +2257,7 @@ static int mpage_process_page(struct mpage_da_data *mpd, struct page *page,
 					err = PTR_ERR(io_end_vec);
 					goto out;
 				}
-				io_end_vec->offset = mpd->map.m_lblk << blkbits;
+				io_end_vec->offset = (loff_t)mpd->map.m_lblk << blkbits;
 			}
 			*map_bh = true;
 			goto out;
@@ -3601,6 +3604,13 @@ static int ext4_set_page_dirty(struct page *page)
 	return __set_page_dirty_buffers(page);
 }
 
+static int ext4_iomap_swap_activate(struct swap_info_struct *sis,
+				    struct file *file, sector_t *span)
+{
+	return iomap_swapfile_activate(sis, file, span,
+				       &ext4_iomap_report_ops);
+}
+
 static const struct address_space_operations ext4_aops = {
 	.readpage		= ext4_readpage,
 	.readahead		= ext4_readahead,
@@ -3616,6 +3626,7 @@ static const struct address_space_operations ext4_aops = {
 	.migratepage		= buffer_migrate_page,
 	.is_partially_uptodate  = block_is_partially_uptodate,
 	.error_remove_page	= generic_error_remove_page,
+	.swap_activate		= ext4_iomap_swap_activate,
 };
 
 static const struct address_space_operations ext4_journalled_aops = {
@@ -3632,6 +3643,7 @@ static const struct address_space_operations ext4_journalled_aops = {
 	.direct_IO		= noop_direct_IO,
 	.is_partially_uptodate  = block_is_partially_uptodate,
 	.error_remove_page	= generic_error_remove_page,
+	.swap_activate		= ext4_iomap_swap_activate,
 };
 
 static const struct address_space_operations ext4_da_aops = {
@@ -3649,6 +3661,7 @@ static const struct address_space_operations ext4_da_aops = {
 	.migratepage		= buffer_migrate_page,
 	.is_partially_uptodate  = block_is_partially_uptodate,
 	.error_remove_page	= generic_error_remove_page,
+	.swap_activate		= ext4_iomap_swap_activate,
 };
 
 static const struct address_space_operations ext4_dax_aops = {
@@ -3657,6 +3670,7 @@ static const struct address_space_operations ext4_dax_aops = {
 	.set_page_dirty		= noop_set_page_dirty,
 	.bmap			= ext4_bmap,
 	.invalidatepage		= noop_invalidatepage,
+	.swap_activate		= ext4_iomap_swap_activate,
 };
 
 void ext4_set_aops(struct inode *inode)
@@ -4971,6 +4985,12 @@ static int ext4_do_update_inode(handle_t *handle,
 	if (ext4_test_inode_state(inode, EXT4_STATE_NEW))
 		memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
 
+	err = ext4_inode_blocks_set(handle, raw_inode, ei);
+	if (err) {
+		spin_unlock(&ei->i_raw_lock);
+		goto out_brelse;
+	}
+
 	raw_inode->i_mode = cpu_to_le16(inode->i_mode);
 	i_uid = i_uid_read(inode);
 	i_gid = i_gid_read(inode);
@@ -5004,11 +5024,6 @@ static int ext4_do_update_inode(handle_t *handle,
 	EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode);
 	EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode);
 
-	err = ext4_inode_blocks_set(handle, raw_inode, ei);
-	if (err) {
-		spin_unlock(&ei->i_raw_lock);
-		goto out_brelse;
-	}
 	raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
 	raw_inode->i_flags = cpu_to_le32(ei->i_flags & 0xFFFFFFFF);
 	if (likely(!test_opt2(inode->i_sb, HURD_COMPAT)))
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index a50b51270ea9..71bf600e5b42 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -843,8 +843,10 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 
 	BUFFER_TRACE(dind, "get_write_access");
 	err = ext4_journal_get_write_access(handle, dind);
-	if (unlikely(err))
+	if (unlikely(err)) {
 		ext4_std_error(sb, err);
+		goto errout;
+	}
 
 	/* ext4_reserve_inode_write() gets a reference on the iloc */
 	err = ext4_reserve_inode_write(handle, inode, &iloc);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index ea425b49b345..76eeee4e60ca 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -156,6 +156,7 @@ ext4_sb_bread(struct super_block *sb, sector_t block, int op_flags)
 		return ERR_PTR(-ENOMEM);
 	if (ext4_buffer_uptodate(bh))
 		return bh;
+	clear_buffer_verified(bh);
 	ll_rw_block(REQ_OP_READ, REQ_META | op_flags, 1, &bh);
 	wait_on_buffer(bh);
 	if (buffer_uptodate(bh))
@@ -201,7 +202,18 @@ void ext4_superblock_csum_set(struct super_block *sb)
 	if (!ext4_has_metadata_csum(sb))
 		return;
 
+	/*
+	 * Locking the superblock prevents the scenario
+	 * where:
+	 *  1) a first thread pauses during checksum calculation.
+	 *  2) a second thread updates the superblock, recalculates
+	 *     the checksum, and updates s_checksum
+	 *  3) the first thread resumes and finishes its checksum calculation
+	 *     and updates s_checksum with a potentially stale or torn value.
+	 */
+	lock_buffer(EXT4_SB(sb)->s_sbh);
 	es->s_checksum = ext4_superblock_csum(sb, es);
+	unlock_buffer(EXT4_SB(sb)->s_sbh);
 }
 
 ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
@@ -4814,9 +4826,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	 * used to detect the metadata async write error.
 	 */
 	spin_lock_init(&sbi->s_bdev_wb_lock);
-	if (!sb_rdonly(sb))
-		errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err,
-					 &sbi->s_bdev_wb_err);
+	errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err,
+				 &sbi->s_bdev_wb_err);
 	sb->s_bdev->bd_super = sb;
 	EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS;
 	ext4_orphan_cleanup(sb, es);
@@ -4872,6 +4883,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 
 failed_mount8:
 	ext4_unregister_sysfs(sb);
+	kobject_put(&sbi->s_kobj);
 failed_mount7:
 	ext4_unregister_li_request(sb);
 failed_mount6:
@@ -5707,14 +5719,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 				goto restore_opts;
 			}
 
-			/*
-			 * Update the original bdev mapping's wb_err value
-			 * which could be used to detect the metadata async
-			 * write error.
-			 */
-			errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err,
-						 &sbi->s_bdev_wb_err);
-
 			/*
 			 * Mounting a RDONLY partition read-write, so reread
 			 * and store the current valid flag.  (It may have
@@ -6042,6 +6046,11 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 	/* Quotafile not on the same filesystem? */
 	if (path->dentry->d_sb != sb)
 		return -EXDEV;
+
+	/* Quota already enabled for this file? */
+	if (IS_NOQUOTA(d_inode(path->dentry)))
+		return -EBUSY;
+
 	/* Journaling quota? */
 	if (EXT4_SB(sb)->s_qf_names[type]) {
 		/* Quotafile not in fs root? */
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index ff807e14c891..4a97fe4ddf78 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -107,7 +107,7 @@ struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
 	return __get_meta_page(sbi, index, true);
 }
 
-struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index)
+struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index)
 {
 	struct page *page;
 	int count = 0;
@@ -243,6 +243,8 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
 					blkno * NAT_ENTRY_PER_BLOCK);
 			break;
 		case META_SIT:
+			if (unlikely(blkno >= TOTAL_SEGS(sbi)))
+				goto out;
 			/* get sit block addr */
 			fio.new_blkaddr = current_sit_addr(sbi,
 					blkno * SIT_ENTRY_PER_BLOCK);
@@ -1047,8 +1049,12 @@ int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type)
 				get_pages(sbi, is_dir ?
 				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
 retry:
-	if (unlikely(f2fs_cp_error(sbi)))
+	if (unlikely(f2fs_cp_error(sbi))) {
+		trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir,
+				get_pages(sbi, is_dir ?
+				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA));
 		return -EIO;
+	}
 
 	spin_lock(&sbi->inode_lock[type]);
 
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 1dfb126a0cb2..1cd4b3f9c9f8 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -382,16 +382,17 @@ static int zstd_init_decompress_ctx(struct decompress_io_ctx *dic)
 	ZSTD_DStream *stream;
 	void *workspace;
 	unsigned int workspace_size;
+	unsigned int max_window_size =
+			MAX_COMPRESS_WINDOW_SIZE(dic->log_cluster_size);
 
-	workspace_size = ZSTD_DStreamWorkspaceBound(MAX_COMPRESS_WINDOW_SIZE);
+	workspace_size = ZSTD_DStreamWorkspaceBound(max_window_size);
 
 	workspace = f2fs_kvmalloc(F2FS_I_SB(dic->inode),
 					workspace_size, GFP_NOFS);
 	if (!workspace)
 		return -ENOMEM;
 
-	stream = ZSTD_initDStream(MAX_COMPRESS_WINDOW_SIZE,
-					workspace, workspace_size);
+	stream = ZSTD_initDStream(max_window_size, workspace, workspace_size);
 	if (!stream) {
 		printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initDStream failed\n",
 				KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id,
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 069f498af1e3..ceb4431b5669 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -357,16 +357,15 @@ struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
 	unsigned int max_depth;
 	unsigned int level;
 
+	*res_page = NULL;
+
 	if (f2fs_has_inline_dentry(dir)) {
-		*res_page = NULL;
 		de = f2fs_find_in_inline_dir(dir, fname, res_page);
 		goto out;
 	}
 
-	if (npages == 0) {
-		*res_page = NULL;
+	if (npages == 0)
 		goto out;
-	}
 
 	max_depth = F2FS_I(dir)->i_current_depth;
 	if (unlikely(max_depth > MAX_DIR_HASH_DEPTH)) {
@@ -377,7 +376,6 @@ struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
 	}
 
 	for (level = 0; level < max_depth; level++) {
-		*res_page = NULL;
 		de = find_in_level(dir, level, fname, res_page);
 		if (de || IS_ERR(*res_page))
 			break;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d9e52a7f3702..d44c6c36de67 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1394,7 +1394,7 @@ struct decompress_io_ctx {
 #define NULL_CLUSTER			((unsigned int)(~0))
 #define MIN_COMPRESS_LOG_SIZE		2
 #define MAX_COMPRESS_LOG_SIZE		8
-#define MAX_COMPRESS_WINDOW_SIZE	((PAGE_SIZE) << MAX_COMPRESS_LOG_SIZE)
+#define MAX_COMPRESS_WINDOW_SIZE(log_size)	((PAGE_SIZE) << (log_size))
 
 struct f2fs_sb_info {
 	struct super_block *sb;			/* pointer to VFS super block */
@@ -3385,7 +3385,7 @@ enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
-struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
+struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 8a422400e824..4ec10256dc67 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1836,6 +1836,8 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
 		if (iflags & F2FS_COMPR_FL) {
 			if (!f2fs_may_compress(inode))
 				return -EINVAL;
+			if (S_ISREG(inode->i_mode) && inode->i_size)
+				return -EINVAL;
 
 			set_compress_context(inode);
 		}
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 5195e083fc1e..12c7fa163193 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -299,6 +299,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
 						i_log_cluster_size)) {
 		if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
 				"compress algorithm: %u, run fsck to fix",
 				  __func__, inode->i_ino,
@@ -307,6 +308,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 		}
 		if (le64_to_cpu(ri->i_compr_blocks) >
 				SECTOR_TO_BLOCK(inode->i_blocks)) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
 				"i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
 				  __func__, inode->i_ino,
@@ -316,6 +318,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 		}
 		if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
 			ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
 				"log cluster size: %u, run fsck to fix",
 				  __func__, inode->i_ino,
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index cb1b5b61a1da..cc4700f6240d 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -109,7 +109,7 @@ static void clear_node_page_dirty(struct page *page)
 
 static struct page *get_current_nat_page(struct f2fs_sb_info *sbi, nid_t nid)
 {
-	return f2fs_get_meta_page_nofail(sbi, current_nat_addr(sbi, nid));
+	return f2fs_get_meta_page(sbi, current_nat_addr(sbi, nid));
 }
 
 static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index e247a5ef3713..2628406f43f6 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2344,7 +2344,9 @@ int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra)
  */
 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno)
 {
-	return f2fs_get_meta_page_nofail(sbi, GET_SUM_BLOCK(sbi, segno));
+	if (unlikely(f2fs_cp_error(sbi)))
+		return ERR_PTR(-EIO);
+	return f2fs_get_meta_page_retry(sbi, GET_SUM_BLOCK(sbi, segno));
 }
 
 void f2fs_update_meta_page(struct f2fs_sb_info *sbi,
@@ -2616,7 +2618,11 @@ static void change_curseg(struct f2fs_sb_info *sbi, int type)
 	__next_free_blkoff(sbi, curseg, 0);
 
 	sum_page = f2fs_get_sum_page(sbi, new_segno);
-	f2fs_bug_on(sbi, IS_ERR(sum_page));
+	if (IS_ERR(sum_page)) {
+		/* GC won't be able to use stale summary pages by cp_error */
+		memset(curseg->sum_blk, 0, SUM_ENTRY_SIZE);
+		return;
+	}
 	sum_node = (struct f2fs_summary_block *)page_address(sum_page);
 	memcpy(curseg->sum_blk, sum_node, SUM_ENTRY_SIZE);
 	f2fs_put_page(sum_page, 1);
@@ -3781,7 +3787,7 @@ int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
 static struct page *get_current_sit_page(struct f2fs_sb_info *sbi,
 					unsigned int segno)
 {
-	return f2fs_get_meta_page_nofail(sbi, current_sit_addr(sbi, segno));
+	return f2fs_get_meta_page(sbi, current_sit_addr(sbi, segno));
 }
 
 static struct page *get_next_sit_page(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index dfa072fa8081..be5050292caa 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2832,6 +2832,12 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
 					segment_count, dev_seg_count);
 			return -EFSCORRUPTED;
 		}
+	} else {
+		if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
+					!bdev_is_zoned(sbi->sb->s_bdev)) {
+			f2fs_info(sbi, "Zoned block device path is missing");
+			return -EFSCORRUPTED;
+		}
 	}
 
 	if (secs_per_zone > total_sections || !secs_per_zone) {
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index f13b136654ca..1192fcd8ee41 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -270,7 +270,12 @@ static void __gfs2_glock_put(struct gfs2_glock *gl)
 	gfs2_glock_remove_from_lru(gl);
 	spin_unlock(&gl->gl_lockref.lock);
 	GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
-	GLOCK_BUG_ON(gl, mapping && mapping->nrpages && !gfs2_withdrawn(sdp));
+	if (mapping) {
+		truncate_inode_pages_final(mapping);
+		if (!gfs2_withdrawn(sdp))
+			GLOCK_BUG_ON(gl, mapping->nrpages ||
+				     mapping->nrexceptional);
+	}
 	trace_gfs2_glock_put(gl);
 	sdp->sd_lockstruct.ls_ops->lm_put_lock(gl);
 }
@@ -1049,7 +1054,8 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 	gl->gl_object = NULL;
 	gl->gl_hold_time = GL_GLOCK_DFT_HOLD;
 	INIT_DELAYED_WORK(&gl->gl_work, glock_work_func);
-	INIT_DELAYED_WORK(&gl->gl_delete, delete_work_func);
+	if (gl->gl_name.ln_type == LM_TYPE_IOPEN)
+		INIT_DELAYED_WORK(&gl->gl_delete, delete_work_func);
 
 	mapping = gfs2_glock2aspace(gl);
 	if (mapping) {
@@ -1901,9 +1907,11 @@ bool gfs2_delete_work_queued(const struct gfs2_glock *gl)
 
 static void flush_delete_work(struct gfs2_glock *gl)
 {
-	if (cancel_delayed_work(&gl->gl_delete)) {
-		queue_delayed_work(gfs2_delete_workqueue,
-				   &gl->gl_delete, 0);
+	if (gl->gl_name.ln_type == LM_TYPE_IOPEN) {
+		if (cancel_delayed_work(&gl->gl_delete)) {
+			queue_delayed_work(gfs2_delete_workqueue,
+					   &gl->gl_delete, 0);
+		}
 	}
 	gfs2_glock_queue_work(gl, 0);
 }
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index de1d5f1d9ff8..c2c90747d79b 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -227,6 +227,15 @@ static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
 		rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
 }
 
+static void gfs2_rgrp_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
+			      const char *fs_id_buf)
+{
+	struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
+
+	if (rgd)
+		gfs2_rgrp_dump(seq, rgd, fs_id_buf);
+}
+
 static struct gfs2_inode *gfs2_glock2inode(struct gfs2_glock *gl)
 {
 	struct gfs2_inode *ip;
@@ -712,7 +721,7 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
 	.go_sync = rgrp_go_sync,
 	.go_inval = rgrp_go_inval,
 	.go_lock = gfs2_rgrp_go_lock,
-	.go_dump = gfs2_rgrp_dump,
+	.go_dump = gfs2_rgrp_go_dump,
 	.go_type = LM_TYPE_RGRP,
 	.go_flags = GLOF_LVB,
 };
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index ca2ec02436ec..387e99d6eda9 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -705,6 +705,7 @@ struct gfs2_sbd {
 	struct super_block *sd_vfs;
 	struct gfs2_pcpu_lkstats __percpu *sd_lkstats;
 	struct kobject sd_kobj;
+	struct completion sd_kobj_unregister;
 	unsigned long sd_flags;	/* SDF_... */
 	struct gfs2_sb_host sd_sb;
 
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 3763c9ff1406..93032feb5159 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -954,10 +954,8 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 		goto out;
 
 	/* Log might have been flushed while we waited for the flush lock */
-	if (gl && !test_bit(GLF_LFLUSH, &gl->gl_flags)) {
-		up_write(&sdp->sd_log_flush_lock);
-		return;
-	}
+	if (gl && !test_bit(GLF_LFLUSH, &gl->gl_flags))
+		goto out;
 	trace_gfs2_log_flush(sdp, 1, flags);
 
 	if (flags & GFS2_LOG_HEAD_FLUSH_SHUTDOWN)
@@ -971,25 +969,25 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 		if (unlikely (state == SFS_FROZEN))
 			if (gfs2_assert_withdraw_delayed(sdp,
 			       !tr->tr_num_buf_new && !tr->tr_num_databuf_new))
-				goto out;
+				goto out_withdraw;
 	}
 
 	if (unlikely(state == SFS_FROZEN))
 		if (gfs2_assert_withdraw_delayed(sdp, !sdp->sd_log_num_revoke))
-			goto out;
+			goto out_withdraw;
 	if (gfs2_assert_withdraw_delayed(sdp,
 			sdp->sd_log_num_revoke == sdp->sd_log_committed_revoke))
-		goto out;
+		goto out_withdraw;
 
 	gfs2_ordered_write(sdp);
 	if (gfs2_withdrawn(sdp))
-		goto out;
+		goto out_withdraw;
 	lops_before_commit(sdp, tr);
 	if (gfs2_withdrawn(sdp))
-		goto out;
+		goto out_withdraw;
 	gfs2_log_submit_bio(&sdp->sd_log_bio, REQ_OP_WRITE);
 	if (gfs2_withdrawn(sdp))
-		goto out;
+		goto out_withdraw;
 
 	if (sdp->sd_log_head != sdp->sd_log_flush_head) {
 		log_flush_wait(sdp);
@@ -1000,7 +998,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 		log_write_header(sdp, flags);
 	}
 	if (gfs2_withdrawn(sdp))
-		goto out;
+		goto out_withdraw;
 	lops_after_commit(sdp, tr);
 
 	gfs2_log_lock(sdp);
@@ -1020,7 +1018,7 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 		if (!sdp->sd_log_idle) {
 			empty_ail1_list(sdp);
 			if (gfs2_withdrawn(sdp))
-				goto out;
+				goto out_withdraw;
 			atomic_dec(&sdp->sd_log_blks_free); /* Adjust for unreserved buffer */
 			trace_gfs2_log_blocks(sdp, -1);
 			log_write_header(sdp, flags);
@@ -1033,27 +1031,30 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 			atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
 	}
 
-out:
-	if (gfs2_withdrawn(sdp)) {
-		trans_drain(tr);
-		/**
-		 * If the tr_list is empty, we're withdrawing during a log
-		 * flush that targets a transaction, but the transaction was
-		 * never queued onto any of the ail lists. Here we add it to
-		 * ail1 just so that ail_drain() will find and free it.
-		 */
-		spin_lock(&sdp->sd_ail_lock);
-		if (tr && list_empty(&tr->tr_list))
-			list_add(&tr->tr_list, &sdp->sd_ail1_list);
-		spin_unlock(&sdp->sd_ail_lock);
-		ail_drain(sdp); /* frees all transactions */
-		tr = NULL;
-	}
-
+out_end:
 	trace_gfs2_log_flush(sdp, 0, flags);
+out:
 	up_write(&sdp->sd_log_flush_lock);
-
 	gfs2_trans_free(sdp, tr);
+	if (gfs2_withdrawing(sdp))
+		gfs2_withdraw(sdp);
+	return;
+
+out_withdraw:
+	trans_drain(tr);
+	/**
+	 * If the tr_list is empty, we're withdrawing during a log
+	 * flush that targets a transaction, but the transaction was
+	 * never queued onto any of the ail lists. Here we add it to
+	 * ail1 just so that ail_drain() will find and free it.
+	 */
+	spin_lock(&sdp->sd_ail_lock);
+	if (tr && list_empty(&tr->tr_list))
+		list_add(&tr->tr_list, &sdp->sd_ail1_list);
+	spin_unlock(&sdp->sd_ail_lock);
+	ail_drain(sdp); /* frees all transactions */
+	tr = NULL;
+	goto out_end;
 }
 
 /**
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 6d18d2c91add..03c33fc03c05 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -169,15 +169,19 @@ static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent)
 		return -EINVAL;
 	}
 
-	/*  If format numbers match exactly, we're done.  */
-
-	if (sb->sb_fs_format == GFS2_FORMAT_FS &&
-	    sb->sb_multihost_format == GFS2_FORMAT_MULTI)
-		return 0;
+	if (sb->sb_fs_format != GFS2_FORMAT_FS ||
+	    sb->sb_multihost_format != GFS2_FORMAT_MULTI) {
+		fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+		return -EINVAL;
+	}
 
-	fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
+	if (sb->sb_bsize < 512 || sb->sb_bsize > PAGE_SIZE ||
+	    (sb->sb_bsize & (sb->sb_bsize - 1))) {
+		pr_warn("Invalid superblock size\n");
+		return -EINVAL;
+	}
 
-	return -EINVAL;
+	return 0;
 }
 
 static void end_bio_io_page(struct bio *bio)
@@ -1062,26 +1066,14 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
 	}
 
 	error = init_names(sdp, silent);
-	if (error) {
-		/* In this case, we haven't initialized sysfs, so we have to
-		   manually free the sdp. */
-		free_sbd(sdp);
-		sb->s_fs_info = NULL;
-		return error;
-	}
+	if (error)
+		goto fail_free;
 
 	snprintf(sdp->sd_fsname, sizeof(sdp->sd_fsname), "%s", sdp->sd_table_name);
 
 	error = gfs2_sys_fs_add(sdp);
-	/*
-	 * If we hit an error here, gfs2_sys_fs_add will have called function
-	 * kobject_put which causes the sysfs usage count to go to zero, which
-	 * causes sysfs to call function gfs2_sbd_release, which frees sdp.
-	 * Subsequent error paths here will call gfs2_sys_fs_del, which also
-	 * kobject_put to free sdp.
-	 */
 	if (error)
-		return error;
+		goto fail_free;
 
 	gfs2_create_debugfs_file(sdp);
 
@@ -1179,9 +1171,9 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
 	gfs2_lm_unmount(sdp);
 fail_debug:
 	gfs2_delete_debugfs_file(sdp);
-	/* gfs2_sys_fs_del must be the last thing we do, since it causes
-	 * sysfs to call function gfs2_sbd_release, which frees sdp. */
 	gfs2_sys_fs_del(sdp);
+fail_free:
+	free_sbd(sdp);
 	sb->s_fs_info = NULL;
 	return error;
 }
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 074f228ea839..1bba5a9d45fa 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -2209,20 +2209,17 @@ static void rgblk_free(struct gfs2_sbd *sdp, struct gfs2_rgrpd *rgd,
 /**
  * gfs2_rgrp_dump - print out an rgrp
  * @seq: The iterator
- * @gl: The glock in question
+ * @rgd: The rgrp in question
  * @fs_id_buf: pointer to file system id (if requested)
  *
  */
 
-void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_glock *gl,
+void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
 		    const char *fs_id_buf)
 {
-	struct gfs2_rgrpd *rgd = gl->gl_object;
 	struct gfs2_blkreserv *trs;
 	const struct rb_node *n;
 
-	if (rgd == NULL)
-		return;
 	gfs2_print_dbg(seq, "%s R: n:%llu f:%02x b:%u/%u i:%u r:%u e:%u\n",
 		       fs_id_buf,
 		       (unsigned long long)rgd->rd_addr, rgd->rd_flags,
@@ -2253,7 +2250,7 @@ static void gfs2_rgrp_error(struct gfs2_rgrpd *rgd)
 		(unsigned long long)rgd->rd_addr);
 	fs_warn(sdp, "umount on all nodes and run fsck.gfs2 to fix the error\n");
 	sprintf(fs_id_buf, "fsid=%s: ", sdp->sd_fsname);
-	gfs2_rgrp_dump(NULL, rgd->rd_gl, fs_id_buf);
+	gfs2_rgrp_dump(NULL, rgd, fs_id_buf);
 	rgd->rd_flags |= GFS2_RDF_ERROR;
 }
 
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index a1d7e14fc55b..9a587ada51ed 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -67,7 +67,7 @@ extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist);
 extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
 extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
-extern void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_glock *gl,
+extern void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
 			   const char *fs_id_buf);
 extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
 				   struct buffer_head *bh,
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 9f4d9e7be839..32ae1a7cdaed 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -702,6 +702,8 @@ static void gfs2_put_super(struct super_block *sb)
 		if (error)
 			gfs2_io_error(sdp);
 	}
+	WARN_ON(gfs2_withdrawing(sdp));
+
 	/*  At this point, we're through modifying the disk  */
 
 	/*  Release stuff  */
@@ -736,6 +738,7 @@ static void gfs2_put_super(struct super_block *sb)
 
 	/*  At this point, we're through participating in the lockspace  */
 	gfs2_sys_fs_del(sdp);
+	free_sbd(sdp);
 }
 
 /**
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index d28c41bd69b0..c3e72dba7418 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -303,7 +303,7 @@ static void gfs2_sbd_release(struct kobject *kobj)
 {
 	struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
 
-	free_sbd(sdp);
+	complete(&sdp->sd_kobj_unregister);
 }
 
 static struct kobj_type gfs2_ktype = {
@@ -655,6 +655,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 	sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
 	sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
 
+	init_completion(&sdp->sd_kobj_unregister);
 	sdp->sd_kobj.kset = gfs2_kset;
 	error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL,
 				     "%s", sdp->sd_table_name);
@@ -685,6 +686,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 fail_reg:
 	fs_err(sdp, "error %d adding sysfs files\n", error);
 	kobject_put(&sdp->sd_kobj);
+	wait_for_completion(&sdp->sd_kobj_unregister);
 	sb->s_fs_info = NULL;
 	return error;
 }
@@ -695,6 +697,7 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
 	sysfs_remove_group(&sdp->sd_kobj, &tune_group);
 	sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
 	kobject_put(&sdp->sd_kobj);
+	wait_for_completion(&sdp->sd_kobj_unregister);
 }
 
 static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 1cd0328cae20..0fba3bf64189 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -419,7 +419,7 @@ void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
 	char fs_id_buf[sizeof(sdp->sd_fsname) + 7];
 
 	sprintf(fs_id_buf, "fsid=%s: ", sdp->sd_fsname);
-	gfs2_rgrp_dump(NULL, rgd->rd_gl, fs_id_buf);
+	gfs2_rgrp_dump(NULL, rgd, fs_id_buf);
 	gfs2_lm(sdp,
 		"fatal: filesystem consistency error\n"
 		"  RG = %llu\n"
diff --git a/fs/gfs2/util.h b/fs/gfs2/util.h
index 6d9157efe16c..d7562981b3a0 100644
--- a/fs/gfs2/util.h
+++ b/fs/gfs2/util.h
@@ -205,6 +205,16 @@ static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp)
 		test_bit(SDF_WITHDRAWING, &sdp->sd_flags);
 }
 
+/**
+ * gfs2_withdrawing - check if a withdraw is pending
+ * @sdp: the superblock
+ */
+static inline bool gfs2_withdrawing(struct gfs2_sbd *sdp)
+{
+	return test_bit(SDF_WITHDRAWING, &sdp->sd_flags) &&
+	       !test_bit(SDF_WITHDRAWN, &sdp->sd_flags);
+}
+
 #define gfs2_tune_get(sdp, field) \
 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
 
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 19db17e99cf9..5ad65b305936 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -654,6 +654,7 @@ static bool create_io_worker(struct io_wq *wq, struct io_wqe *wqe, int index)
 		kfree(worker);
 		return false;
 	}
+	kthread_bind_mask(worker->task, cpumask_of_node(wqe->node));
 
 	raw_spin_lock_irq(&wqe->lock);
 	hlist_nulls_add_head_rcu(&worker->nulls_node, &wqe->free_list);
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 59ab8c5c2aaa..64f214a3dc9d 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1650,6 +1650,7 @@ static bool io_link_cancel_timeout(struct io_kiocb *req)
 
 	ret = hrtimer_try_to_cancel(&req->io->timeout.timer);
 	if (ret != -1) {
+		req->flags |= REQ_F_COMP_LOCKED;
 		io_cqring_fill_event(req, -ECANCELED);
 		io_commit_cqring(ctx);
 		req->flags &= ~REQ_F_LINK_HEAD;
@@ -1672,7 +1673,6 @@ static bool __io_kill_linked_timeout(struct io_kiocb *req)
 		return false;
 
 	list_del_init(&link->link_list);
-	link->flags |= REQ_F_COMP_LOCKED;
 	wake_ev = io_link_cancel_timeout(link);
 	req->flags &= ~REQ_F_LINK_TIMEOUT;
 	return wake_ev;
@@ -4786,8 +4786,10 @@ static int io_poll_double_wake(struct wait_queue_entry *wait, unsigned mode,
 		/* make sure double remove sees this as being gone */
 		wait->private = NULL;
 		spin_unlock(&poll->head->lock);
-		if (!done)
-			__io_async_wake(req, poll, mask, io_poll_task_func);
+		if (!done) {
+			/* use wait func handler, so it matches the rq type */
+			poll->wait.func(&poll->wait, mode, sync, key);
+		}
 	}
 	refcount_dec(&req->refs);
 	return 1;
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index faa97d748474..fb134c7a12c8 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -428,6 +428,8 @@ static int do_one_pass(journal_t *journal,
 	__u32			crc32_sum = ~0; /* Transactional Checksums */
 	int			descr_csum_size = 0;
 	int			block_error = 0;
+	bool			need_check_commit_time = false;
+	__u64			last_trans_commit_time = 0, commit_time;
 
 	/*
 	 * First thing is to establish what we expect to find in the log
@@ -520,12 +522,21 @@ static int do_one_pass(journal_t *journal,
 			if (descr_csum_size > 0 &&
 			    !jbd2_descriptor_block_csum_verify(journal,
 							       bh->b_data)) {
-				printk(KERN_ERR "JBD2: Invalid checksum "
-				       "recovering block %lu in log\n",
-				       next_log_block);
-				err = -EFSBADCRC;
-				brelse(bh);
-				goto failed;
+				/*
+				 * PASS_SCAN can see stale blocks due to lazy
+				 * journal init. Don't error out on those yet.
+				 */
+				if (pass != PASS_SCAN) {
+					pr_err("JBD2: Invalid checksum recovering block %lu in log\n",
+					       next_log_block);
+					err = -EFSBADCRC;
+					brelse(bh);
+					goto failed;
+				}
+				need_check_commit_time = true;
+				jbd_debug(1,
+					"invalid descriptor block found in %lu\n",
+					next_log_block);
 			}
 
 			/* If it is a valid descriptor block, replay it
@@ -535,6 +546,7 @@ static int do_one_pass(journal_t *journal,
 			if (pass != PASS_REPLAY) {
 				if (pass == PASS_SCAN &&
 				    jbd2_has_feature_checksum(journal) &&
+				    !need_check_commit_time &&
 				    !info->end_transaction) {
 					if (calc_chksums(journal, bh,
 							&next_log_block,
@@ -683,11 +695,41 @@ static int do_one_pass(journal_t *journal,
 			 *	 mentioned conditions. Hence assume
 			 *	 "Interrupted Commit".)
 			 */
+			commit_time = be64_to_cpu(
+				((struct commit_header *)bh->b_data)->h_commit_sec);
+			/*
+			 * If need_check_commit_time is set, it means we are in
+			 * PASS_SCAN and csum verify failed before. If
+			 * commit_time is increasing, it's the same journal,
+			 * otherwise it is stale journal block, just end this
+			 * recovery.
+			 */
+			if (need_check_commit_time) {
+				if (commit_time >= last_trans_commit_time) {
+					pr_err("JBD2: Invalid checksum found in transaction %u\n",
+					       next_commit_ID);
+					err = -EFSBADCRC;
+					brelse(bh);
+					goto failed;
+				}
+			ignore_crc_mismatch:
+				/*
+				 * It likely does not belong to same journal,
+				 * just end this recovery with success.
+				 */
+				jbd_debug(1, "JBD2: Invalid checksum ignored in transaction %u, likely stale data\n",
+					  next_commit_ID);
+				err = 0;
+				brelse(bh);
+				goto done;
+			}
 
-			/* Found an expected commit block: if checksums
-			 * are present verify them in PASS_SCAN; else not
+			/*
+			 * Found an expected commit block: if checksums
+			 * are present, verify them in PASS_SCAN; else not
 			 * much to do other than move on to the next sequence
-			 * number. */
+			 * number.
+			 */
 			if (pass == PASS_SCAN &&
 			    jbd2_has_feature_checksum(journal)) {
 				struct commit_header *cbh =
@@ -719,6 +761,8 @@ static int do_one_pass(journal_t *journal,
 			    !jbd2_commit_block_csum_verify(journal,
 							   bh->b_data)) {
 			chksum_error:
+				if (commit_time < last_trans_commit_time)
+					goto ignore_crc_mismatch;
 				info->end_transaction = next_commit_ID;
 
 				if (!jbd2_has_feature_async_commit(journal)) {
@@ -728,11 +772,24 @@ static int do_one_pass(journal_t *journal,
 					break;
 				}
 			}
+			if (pass == PASS_SCAN)
+				last_trans_commit_time = commit_time;
 			brelse(bh);
 			next_commit_ID++;
 			continue;
 
 		case JBD2_REVOKE_BLOCK:
+			/*
+			 * Check revoke block crc in pass_scan, if csum verify
+			 * failed, check commit block time later.
+			 */
+			if (pass == PASS_SCAN &&
+			    !jbd2_descriptor_block_csum_verify(journal,
+							       bh->b_data)) {
+				jbd_debug(1, "JBD2: invalid revoke block found in %lu\n",
+					  next_log_block);
+				need_check_commit_time = true;
+			}
 			/* If we aren't in the REVOKE pass, then we can
 			 * just skip over this block. */
 			if (pass != PASS_REVOKE) {
@@ -800,9 +857,6 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
 	offset = sizeof(jbd2_journal_revoke_header_t);
 	rcount = be32_to_cpu(header->r_count);
 
-	if (!jbd2_descriptor_block_csum_verify(journal, header))
-		return -EFSBADCRC;
-
 	if (jbd2_journal_has_csum_v2or3(journal))
 		csum_size = sizeof(struct jbd2_journal_block_tail);
 	if (rcount > journal->j_blocksize - csum_size)
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 6b063227e34e..2bcbe38afe2e 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -32,9 +32,9 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
 /*
  * nfs_path - reconstruct the path given an arbitrary dentry
  * @base - used to return pointer to the end of devname part of path
- * @dentry - pointer to dentry
+ * @dentry_in - pointer to dentry
  * @buffer - result buffer
- * @buflen - length of buffer
+ * @buflen_in - length of buffer
  * @flags - options (see below)
  *
  * Helper function for constructing the server pathname
@@ -49,15 +49,19 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ;
  *		       the original device (export) name
  *		       (if unset, the original name is returned verbatim)
  */
-char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen,
-	       unsigned flags)
+char *nfs_path(char **p, struct dentry *dentry_in, char *buffer,
+	       ssize_t buflen_in, unsigned flags)
 {
 	char *end;
 	int namelen;
 	unsigned seq;
 	const char *base;
+	struct dentry *dentry;
+	ssize_t buflen;
 
 rename_retry:
+	buflen = buflen_in;
+	dentry = dentry_in;
 	end = buffer+buflen;
 	*--end = '\0';
 	buflen--;
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 0c9505dc852c..065cb04222a1 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -599,6 +599,14 @@ static inline bool nfs4_stateid_is_newer(const nfs4_stateid *s1, const nfs4_stat
 	return (s32)(be32_to_cpu(s1->seqid) - be32_to_cpu(s2->seqid)) > 0;
 }
 
+static inline bool nfs4_stateid_is_next(const nfs4_stateid *s1, const nfs4_stateid *s2)
+{
+	u32 seq1 = be32_to_cpu(s1->seqid);
+	u32 seq2 = be32_to_cpu(s2->seqid);
+
+	return seq2 == seq1 + 1U || (seq2 == 1U && seq1 == 0xffffffffU);
+}
+
 static inline bool nfs4_stateid_match_or_older(const nfs4_stateid *dst, const nfs4_stateid *src)
 {
 	return nfs4_stateid_match_other(dst, src) &&
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 984938024011..9d354de613da 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -146,7 +146,8 @@ static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
 	/* Only offload copy if superblock is the same */
 	if (file_in->f_op != &nfs4_file_operations)
 		return -EXDEV;
-	if (!nfs_server_capable(file_inode(file_out), NFS_CAP_COPY))
+	if (!nfs_server_capable(file_inode(file_out), NFS_CAP_COPY) ||
+	    !nfs_server_capable(file_inode(file_in), NFS_CAP_COPY))
 		return -EOPNOTSUPP;
 	if (file_inode(file_in) == file_inode(file_out))
 		return -EOPNOTSUPP;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6e95c85fe395..3375f0a09639 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1547,19 +1547,6 @@ static void nfs_state_log_update_open_stateid(struct nfs4_state *state)
 		wake_up_all(&state->waitq);
 }
 
-static void nfs_state_log_out_of_order_open_stateid(struct nfs4_state *state,
-		const nfs4_stateid *stateid)
-{
-	u32 state_seqid = be32_to_cpu(state->open_stateid.seqid);
-	u32 stateid_seqid = be32_to_cpu(stateid->seqid);
-
-	if (stateid_seqid == state_seqid + 1U ||
-	    (stateid_seqid == 1U && state_seqid == 0xffffffffU))
-		nfs_state_log_update_open_stateid(state);
-	else
-		set_bit(NFS_STATE_CHANGE_WAIT, &state->flags);
-}
-
 static void nfs_test_and_clear_all_open_stateid(struct nfs4_state *state)
 {
 	struct nfs_client *clp = state->owner->so_server->nfs_client;
@@ -1585,21 +1572,19 @@ static void nfs_test_and_clear_all_open_stateid(struct nfs4_state *state)
  * i.e. The stateid seqids have to be initialised to 1, and
  * are then incremented on every state transition.
  */
-static bool nfs_need_update_open_stateid(struct nfs4_state *state,
+static bool nfs_stateid_is_sequential(struct nfs4_state *state,
 		const nfs4_stateid *stateid)
 {
-	if (test_bit(NFS_OPEN_STATE, &state->flags) == 0 ||
-	    !nfs4_stateid_match_other(stateid, &state->open_stateid)) {
+	if (test_bit(NFS_OPEN_STATE, &state->flags)) {
+		/* The common case - we're updating to a new sequence number */
+		if (nfs4_stateid_match_other(stateid, &state->open_stateid) &&
+			nfs4_stateid_is_next(&state->open_stateid, stateid)) {
+			return true;
+		}
+	} else {
+		/* This is the first OPEN in this generation */
 		if (stateid->seqid == cpu_to_be32(1))
-			nfs_state_log_update_open_stateid(state);
-		else
-			set_bit(NFS_STATE_CHANGE_WAIT, &state->flags);
-		return true;
-	}
-
-	if (nfs4_stateid_is_newer(stateid, &state->open_stateid)) {
-		nfs_state_log_out_of_order_open_stateid(state, stateid);
-		return true;
+			return true;
 	}
 	return false;
 }
@@ -1673,16 +1658,16 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
 	int status = 0;
 	for (;;) {
 
-		if (!nfs_need_update_open_stateid(state, stateid))
-			return;
-		if (!test_bit(NFS_STATE_CHANGE_WAIT, &state->flags))
+		if (nfs_stateid_is_sequential(state, stateid))
 			break;
+
 		if (status)
 			break;
 		/* Rely on seqids for serialisation with NFSv4.0 */
 		if (!nfs4_has_session(NFS_SERVER(state->inode)->nfs_client))
 			break;
 
+		set_bit(NFS_STATE_CHANGE_WAIT, &state->flags);
 		prepare_to_wait(&state->waitq, &wait, TASK_KILLABLE);
 		/*
 		 * Ensure we process the state changes in the same order
@@ -1693,6 +1678,7 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
 		spin_unlock(&state->owner->so_lock);
 		rcu_read_unlock();
 		trace_nfs4_open_stateid_update_wait(state->inode, stateid, 0);
+
 		if (!signal_pending(current)) {
 			if (schedule_timeout(5*HZ) == 0)
 				status = -EAGAIN;
@@ -3435,7 +3421,8 @@ static bool nfs4_refresh_open_old_stateid(nfs4_stateid *dst,
 	__be32 seqid_open;
 	u32 dst_seqid;
 	bool ret;
-	int seq;
+	int seq, status = -EAGAIN;
+	DEFINE_WAIT(wait);
 
 	for (;;) {
 		ret = false;
@@ -3447,15 +3434,41 @@ static bool nfs4_refresh_open_old_stateid(nfs4_stateid *dst,
 				continue;
 			break;
 		}
+
+		write_seqlock(&state->seqlock);
 		seqid_open = state->open_stateid.seqid;
-		if (read_seqretry(&state->seqlock, seq))
-			continue;
 
 		dst_seqid = be32_to_cpu(dst->seqid);
-		if ((s32)(dst_seqid - be32_to_cpu(seqid_open)) >= 0)
-			dst->seqid = cpu_to_be32(dst_seqid + 1);
-		else
+
+		/* Did another OPEN bump the state's seqid?  try again: */
+		if ((s32)(be32_to_cpu(seqid_open) - dst_seqid) > 0) {
 			dst->seqid = seqid_open;
+			write_sequnlock(&state->seqlock);
+			ret = true;
+			break;
+		}
+
+		/* server says we're behind but we haven't seen the update yet */
+		set_bit(NFS_STATE_CHANGE_WAIT, &state->flags);
+		prepare_to_wait(&state->waitq, &wait, TASK_KILLABLE);
+		write_sequnlock(&state->seqlock);
+		trace_nfs4_close_stateid_update_wait(state->inode, dst, 0);
+
+		if (signal_pending(current))
+			status = -EINTR;
+		else
+			if (schedule_timeout(5*HZ) != 0)
+				status = 0;
+
+		finish_wait(&state->waitq, &wait);
+
+		if (!status)
+			continue;
+		if (status == -EINTR)
+			break;
+
+		/* we slept the whole 5 seconds, we must have lost a seqid */
+		dst->seqid = cpu_to_be32(dst_seqid + 1);
 		ret = true;
 		break;
 	}
@@ -8039,9 +8052,11 @@ int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name,
  * both PNFS and NON_PNFS flags set, and not having one of NON_PNFS, PNFS, or
  * DS flags set.
  */
-static int nfs4_check_cl_exchange_flags(u32 flags)
+static int nfs4_check_cl_exchange_flags(u32 flags, u32 version)
 {
-	if (flags & ~EXCHGID4_FLAG_MASK_R)
+	if (version >= 2 && (flags & ~EXCHGID4_2_FLAG_MASK_R))
+		goto out_inval;
+	else if (version < 2 && (flags & ~EXCHGID4_FLAG_MASK_R))
 		goto out_inval;
 	if ((flags & EXCHGID4_FLAG_USE_PNFS_MDS) &&
 	    (flags & EXCHGID4_FLAG_USE_NON_PNFS))
@@ -8454,7 +8469,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cre
 	if (status  != 0)
 		goto out;
 
-	status = nfs4_check_cl_exchange_flags(resp->flags);
+	status = nfs4_check_cl_exchange_flags(resp->flags,
+			clp->cl_mvops->minor_version);
 	if (status  != 0)
 		goto out;
 
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index b4f852d4d099..484c1da96dea 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1511,6 +1511,7 @@ DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_setattr);
 DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_delegreturn);
 DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update);
 DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update_wait);
+DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_close_stateid_update_wait);
 
 DECLARE_EVENT_CLASS(nfs4_getattr_event,
 		TP_PROTO(
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index c09a2a4281ec..1f646a27481f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4954,7 +4954,6 @@ static int nfsd4_check_conflicting_opens(struct nfs4_client *clp,
 		writes--;
 	if (fp->fi_fds[O_RDWR])
 		writes--;
-	WARN_ON_ONCE(writes < 0);
 	if (writes > 0)
 		return -EAGAIN;
 	spin_lock(&fp->fi_lock);
@@ -5126,7 +5125,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open,
 
 	memcpy(&open->op_delegate_stateid, &dp->dl_stid.sc_stateid, sizeof(dp->dl_stid.sc_stateid));
 
-	trace_nfsd_deleg_open(&dp->dl_stid.sc_stateid);
+	trace_nfsd_deleg_read(&dp->dl_stid.sc_stateid);
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
 	nfs4_put_stid(&dp->dl_stid);
 	return;
@@ -5243,7 +5242,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	nfs4_open_delegation(current_fh, open, stp);
 nodeleg:
 	status = nfs_ok;
-	trace_nfsd_deleg_none(&stp->st_stid.sc_stateid);
+	trace_nfsd_open(&stp->st_stid.sc_stateid);
 out:
 	/* 4.1 client trying to upgrade/downgrade delegation? */
 	if (open->op_delegate_type == NFS4_OPEN_DELEGATE_NONE && dp &&
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 6e0b066480c5..6d1b3af40a4f 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -118,6 +118,13 @@ nfsd_proc_setattr(struct svc_rqst *rqstp)
 	return nfsd_return_attrs(nfserr, resp);
 }
 
+/* Obsolete, replaced by MNTPROC_MNT. */
+static __be32
+nfsd_proc_root(struct svc_rqst *rqstp)
+{
+	return nfs_ok;
+}
+
 /*
  * Look up a path name component
  * Note: the dentry in the resp->fh may be negative if the file
@@ -203,6 +210,13 @@ nfsd_proc_read(struct svc_rqst *rqstp)
 	return fh_getattr(&resp->fh, &resp->stat);
 }
 
+/* Reserved */
+static __be32
+nfsd_proc_writecache(struct svc_rqst *rqstp)
+{
+	return nfs_ok;
+}
+
 /*
  * Write data to a file
  * N.B. After this call resp->fh needs an fh_put
@@ -617,6 +631,7 @@ static const struct svc_procedure nfsd_procedures2[18] = {
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_ROOT] = {
+		.pc_func = nfsd_proc_root,
 		.pc_decode = nfssvc_decode_void,
 		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
@@ -654,6 +669,7 @@ static const struct svc_procedure nfsd_procedures2[18] = {
 		.pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
 	},
 	[NFSPROC_WRITECACHE] = {
+		.pc_func = nfsd_proc_writecache,
 		.pc_decode = nfssvc_decode_void,
 		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 1861db1bdc67..99bf07800cd0 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -289,8 +289,8 @@ DEFINE_STATEID_EVENT(layout_recall_done);
 DEFINE_STATEID_EVENT(layout_recall_fail);
 DEFINE_STATEID_EVENT(layout_recall_release);
 
-DEFINE_STATEID_EVENT(deleg_open);
-DEFINE_STATEID_EVENT(deleg_none);
+DEFINE_STATEID_EVENT(open);
+DEFINE_STATEID_EVENT(deleg_read);
 DEFINE_STATEID_EVENT(deleg_break);
 DEFINE_STATEID_EVENT(deleg_recall);
 
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 31288d8fa2ce..ebff43f8009c 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -1123,6 +1123,7 @@ int dbg_check_dir(struct ubifs_info *c, const struct inode *dir)
 			err = PTR_ERR(dent);
 			if (err == -ENOENT)
 				break;
+			kfree(pdent);
 			return err;
 		}
 
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 4a5b06f8d812..9a3b6e92270d 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -894,6 +894,7 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 				if (err == -ENOENT)
 					break;
 
+				kfree(pxent);
 				goto out_release;
 			}
 
@@ -906,6 +907,7 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 				ubifs_err(c, "dead directory entry '%s', error %d",
 					  xent->name, err);
 				ubifs_ro_mode(c, err);
+				kfree(pxent);
 				kfree(xent);
 				goto out_release;
 			}
@@ -936,8 +938,6 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 					  inode->i_ino);
 	release_head(c, BASEHD);
 
-	ubifs_add_auth_dirt(c, lnum);
-
 	if (last_reference) {
 		err = ubifs_tnc_remove_ino(c, inode->i_ino);
 		if (err)
@@ -947,6 +947,8 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 	} else {
 		union ubifs_key key;
 
+		ubifs_add_auth_dirt(c, lnum);
+
 		ino_key_init(c, &key, inode->i_ino);
 		err = ubifs_tnc_add(c, &key, lnum, offs, ilen, hash);
 	}
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index 2c294085ffed..0fb61956146d 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -173,6 +173,7 @@ int ubifs_add_orphan(struct ubifs_info *c, ino_t inum)
 			err = PTR_ERR(xent);
 			if (err == -ENOENT)
 				break;
+			kfree(pxent);
 			return err;
 		}
 
@@ -182,6 +183,7 @@ int ubifs_add_orphan(struct ubifs_info *c, ino_t inum)
 
 		xattr_orphan = orphan_add(c, xattr_inum, orphan);
 		if (IS_ERR(xattr_orphan)) {
+			kfree(pxent);
 			kfree(xent);
 			return PTR_ERR(xattr_orphan);
 		}
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index a2420c900275..732218ef6656 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1110,14 +1110,20 @@ static int ubifs_parse_options(struct ubifs_info *c, char *options,
 			break;
 		}
 		case Opt_auth_key:
-			c->auth_key_name = kstrdup(args[0].from, GFP_KERNEL);
-			if (!c->auth_key_name)
-				return -ENOMEM;
+			if (!is_remount) {
+				c->auth_key_name = kstrdup(args[0].from,
+								GFP_KERNEL);
+				if (!c->auth_key_name)
+					return -ENOMEM;
+			}
 			break;
 		case Opt_auth_hash_name:
-			c->auth_hash_name = kstrdup(args[0].from, GFP_KERNEL);
-			if (!c->auth_hash_name)
-				return -ENOMEM;
+			if (!is_remount) {
+				c->auth_hash_name = kstrdup(args[0].from,
+								GFP_KERNEL);
+				if (!c->auth_hash_name)
+					return -ENOMEM;
+			}
 			break;
 		case Opt_ignore:
 			break;
@@ -1141,6 +1147,18 @@ static int ubifs_parse_options(struct ubifs_info *c, char *options,
 	return 0;
 }
 
+/*
+ * ubifs_release_options - release mount parameters which have been dumped.
+ * @c: UBIFS file-system description object
+ */
+static void ubifs_release_options(struct ubifs_info *c)
+{
+	kfree(c->auth_key_name);
+	c->auth_key_name = NULL;
+	kfree(c->auth_hash_name);
+	c->auth_hash_name = NULL;
+}
+
 /**
  * destroy_journal - destroy journal data structures.
  * @c: UBIFS file-system description object
@@ -1313,7 +1331,7 @@ static int mount_ubifs(struct ubifs_info *c)
 
 	err = ubifs_read_superblock(c);
 	if (err)
-		goto out_free;
+		goto out_auth;
 
 	c->probing = 0;
 
@@ -1325,18 +1343,18 @@ static int mount_ubifs(struct ubifs_info *c)
 		ubifs_err(c, "'compressor \"%s\" is not compiled in",
 			  ubifs_compr_name(c, c->default_compr));
 		err = -ENOTSUPP;
-		goto out_free;
+		goto out_auth;
 	}
 
 	err = init_constants_sb(c);
 	if (err)
-		goto out_free;
+		goto out_auth;
 
 	sz = ALIGN(c->max_idx_node_sz, c->min_io_size) * 2;
 	c->cbuf = kmalloc(sz, GFP_NOFS);
 	if (!c->cbuf) {
 		err = -ENOMEM;
-		goto out_free;
+		goto out_auth;
 	}
 
 	err = alloc_wbufs(c);
@@ -1611,6 +1629,8 @@ static int mount_ubifs(struct ubifs_info *c)
 	free_wbufs(c);
 out_cbuf:
 	kfree(c->cbuf);
+out_auth:
+	ubifs_exit_authentication(c);
 out_free:
 	kfree(c->write_reserve_buf);
 	kfree(c->bu.buf);
@@ -1650,8 +1670,7 @@ static void ubifs_umount(struct ubifs_info *c)
 	ubifs_lpt_free(c, 0);
 	ubifs_exit_authentication(c);
 
-	kfree(c->auth_key_name);
-	kfree(c->auth_hash_name);
+	ubifs_release_options(c);
 	kfree(c->cbuf);
 	kfree(c->rcvrd_mst_node);
 	kfree(c->mst_node);
@@ -2219,6 +2238,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 out_unlock:
 	mutex_unlock(&c->umount_mutex);
 out_close:
+	ubifs_release_options(c);
 	ubi_close_volume(c->ubi);
 out:
 	return err;
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index f609f6cdde70..b120a00773f8 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -2885,6 +2885,7 @@ int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum)
 			err = PTR_ERR(xent);
 			if (err == -ENOENT)
 				break;
+			kfree(pxent);
 			return err;
 		}
 
@@ -2898,6 +2899,7 @@ int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum)
 		fname_len(&nm) = le16_to_cpu(xent->nlen);
 		err = ubifs_tnc_remove_nm(c, &key1, &nm);
 		if (err) {
+			kfree(pxent);
 			kfree(xent);
 			return err;
 		}
@@ -2906,6 +2908,7 @@ int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum)
 		highest_ino_key(c, &key2, xattr_inum);
 		err = ubifs_tnc_remove_range(c, &key1, &key2);
 		if (err) {
+			kfree(pxent);
 			kfree(xent);
 			return err;
 		}
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 9aefbb60074f..a0b9b349efe6 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -522,6 +522,7 @@ int ubifs_purge_xattrs(struct inode *host)
 				  xent->name, err);
 			ubifs_ro_mode(c, err);
 			kfree(pxent);
+			kfree(xent);
 			return err;
 		}
 
@@ -531,6 +532,7 @@ int ubifs_purge_xattrs(struct inode *host)
 		err = remove_xattr(c, host, xino, &nm);
 		if (err) {
 			kfree(pxent);
+			kfree(xent);
 			iput(xino);
 			ubifs_err(c, "cannot remove xattr, error %d", err);
 			return err;
diff --git a/fs/udf/super.c b/fs/udf/super.c
index a03b8ce5ef0f..fca3f5b59078 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1704,7 +1704,8 @@ static noinline int udf_process_sequence(
 					"Pointers (max %u supported)\n",
 					UDF_MAX_TD_NESTING);
 				brelse(bh);
-				return -EIO;
+				ret = -EIO;
+				goto out;
 			}
 
 			vdp = (struct volDescPtr *)bh->b_data;
@@ -1724,7 +1725,8 @@ static noinline int udf_process_sequence(
 			curr = get_volume_descriptor_record(ident, bh, &data);
 			if (IS_ERR(curr)) {
 				brelse(bh);
-				return PTR_ERR(curr);
+				ret = PTR_ERR(curr);
+				goto out;
 			}
 			/* Descriptor we don't care about? */
 			if (!curr)
@@ -1746,28 +1748,31 @@ static noinline int udf_process_sequence(
 	 */
 	if (!data.vds[VDS_POS_PRIMARY_VOL_DESC].block) {
 		udf_err(sb, "Primary Volume Descriptor not found!\n");
-		return -EAGAIN;
+		ret = -EAGAIN;
+		goto out;
 	}
 	ret = udf_load_pvoldesc(sb, data.vds[VDS_POS_PRIMARY_VOL_DESC].block);
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	if (data.vds[VDS_POS_LOGICAL_VOL_DESC].block) {
 		ret = udf_load_logicalvol(sb,
 				data.vds[VDS_POS_LOGICAL_VOL_DESC].block,
 				fileset);
 		if (ret < 0)
-			return ret;
+			goto out;
 	}
 
 	/* Now handle prevailing Partition Descriptors */
 	for (i = 0; i < data.num_part_descs; i++) {
 		ret = udf_load_partdesc(sb, data.part_descs_loc[i].rec.block);
 		if (ret < 0)
-			return ret;
+			goto out;
 	}
-
-	return 0;
+	ret = 0;
+out:
+	kfree(data.part_descs_loc);
+	return ret;
 }
 
 /*
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 1b0a01b06a05..d9a692484eae 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -5046,20 +5046,25 @@ xfs_bmap_del_extent_real(
 
 	flags = XFS_ILOG_CORE;
 	if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
-		xfs_fsblock_t	bno;
 		xfs_filblks_t	len;
 		xfs_extlen_t	mod;
 
-		bno = div_u64_rem(del->br_startblock, mp->m_sb.sb_rextsize,
-				  &mod);
-		ASSERT(mod == 0);
 		len = div_u64_rem(del->br_blockcount, mp->m_sb.sb_rextsize,
 				  &mod);
 		ASSERT(mod == 0);
 
-		error = xfs_rtfree_extent(tp, bno, (xfs_extlen_t)len);
-		if (error)
-			goto done;
+		if (!(bflags & XFS_BMAPI_REMAP)) {
+			xfs_fsblock_t	bno;
+
+			bno = div_u64_rem(del->br_startblock,
+					mp->m_sb.sb_rextsize, &mod);
+			ASSERT(mod == 0);
+
+			error = xfs_rtfree_extent(tp, bno, (xfs_extlen_t)len);
+			if (error)
+				goto done;
+		}
+
 		do_fx = 0;
 		nblks = len * mp->m_sb.sb_rextsize;
 		qfield = XFS_TRANS_DQ_RTBCOUNT;
diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c
index d8f586256add..4959d8a32b60 100644
--- a/fs/xfs/libxfs/xfs_defer.c
+++ b/fs/xfs/libxfs/xfs_defer.c
@@ -186,8 +186,9 @@ xfs_defer_create_intent(
 {
 	const struct xfs_defer_op_type	*ops = defer_op_types[dfp->dfp_type];
 
-	dfp->dfp_intent = ops->create_intent(tp, &dfp->dfp_work,
-			dfp->dfp_count, sort);
+	if (!dfp->dfp_intent)
+		dfp->dfp_intent = ops->create_intent(tp, &dfp->dfp_work,
+						     dfp->dfp_count, sort);
 }
 
 /*
@@ -390,6 +391,7 @@ xfs_defer_finish_one(
 			list_add(li, &dfp->dfp_work);
 			dfp->dfp_count++;
 			dfp->dfp_done = NULL;
+			dfp->dfp_intent = NULL;
 			xfs_defer_create_intent(tp, dfp, false);
 		}
 
@@ -428,8 +430,17 @@ xfs_defer_finish_noroll(
 
 	/* Until we run out of pending work to finish... */
 	while (!list_empty(&dop_pending) || !list_empty(&(*tp)->t_dfops)) {
+		/*
+		 * Deferred items that are created in the process of finishing
+		 * other deferred work items should be queued at the head of
+		 * the pending list, which puts them ahead of the deferred work
+		 * that was created by the caller.  This keeps the number of
+		 * pending work items to a minimum, which decreases the amount
+		 * of time that any one intent item can stick around in memory,
+		 * pinning the log tail.
+		 */
 		xfs_defer_create_intents(*tp);
-		list_splice_tail_init(&(*tp)->t_dfops, &dop_pending);
+		list_splice_init(&(*tp)->t_dfops, &dop_pending);
 
 		error = xfs_defer_trans_roll(tp);
 		if (error)
@@ -552,3 +563,23 @@ xfs_defer_move(
 
 	xfs_defer_reset(stp);
 }
+
+/*
+ * Prepare a chain of fresh deferred ops work items to be completed later.  Log
+ * recovery requires the ability to put off until later the actual finishing
+ * work so that it can process unfinished items recovered from the log in
+ * correct order.
+ *
+ * Create and log intent items for all the work that we're capturing so that we
+ * can be assured that the items will get replayed if the system goes down
+ * before log recovery gets a chance to finish the work it put off.  Then we
+ * move the chain from stp to dtp.
+ */
+void
+xfs_defer_capture(
+	struct xfs_trans	*dtp,
+	struct xfs_trans	*stp)
+{
+	xfs_defer_create_intents(stp);
+	xfs_defer_move(dtp, stp);
+}
diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h
index 6b2ca580f2b0..3164199162b6 100644
--- a/fs/xfs/libxfs/xfs_defer.h
+++ b/fs/xfs/libxfs/xfs_defer.h
@@ -63,4 +63,10 @@ extern const struct xfs_defer_op_type xfs_rmap_update_defer_type;
 extern const struct xfs_defer_op_type xfs_extent_free_defer_type;
 extern const struct xfs_defer_op_type xfs_agfl_free_defer_type;
 
+/*
+ * Functions to capture a chain of deferred operations and continue them later.
+ * This doesn't normally happen except log recovery.
+ */
+void xfs_defer_capture(struct xfs_trans *dtp, struct xfs_trans *stp);
+
 #endif /* __XFS_DEFER_H__ */
diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index ec3691372e7c..815a0563288f 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -534,7 +534,7 @@ xfs_bui_item_recover(
 		xfs_bmap_unmap_extent(tp, ip, &irec);
 	}
 
-	xfs_defer_move(parent_tp, tp);
+	xfs_defer_capture(parent_tp, tp);
 	error = xfs_trans_commit(tp);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	xfs_irele(ip);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index e2ec91b2d0f4..9ceb67d0f256 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2904,7 +2904,8 @@ STATIC int
 xlog_valid_rec_header(
 	struct xlog		*log,
 	struct xlog_rec_header	*rhead,
-	xfs_daddr_t		blkno)
+	xfs_daddr_t		blkno,
+	int			bufsize)
 {
 	int			hlen;
 
@@ -2920,10 +2921,14 @@ xlog_valid_rec_header(
 		return -EFSCORRUPTED;
 	}
 
-	/* LR body must have data or it wouldn't have been written */
+	/*
+	 * LR body must have data (or it wouldn't have been written)
+	 * and h_len must not be greater than LR buffer size.
+	 */
 	hlen = be32_to_cpu(rhead->h_len);
-	if (XFS_IS_CORRUPT(log->l_mp, hlen <= 0 || hlen > INT_MAX))
+	if (XFS_IS_CORRUPT(log->l_mp, hlen <= 0 || hlen > bufsize))
 		return -EFSCORRUPTED;
+
 	if (XFS_IS_CORRUPT(log->l_mp,
 			   blkno > log->l_logBBsize || blkno > INT_MAX))
 		return -EFSCORRUPTED;
@@ -2984,9 +2989,6 @@ xlog_do_recovery_pass(
 			goto bread_err1;
 
 		rhead = (xlog_rec_header_t *)offset;
-		error = xlog_valid_rec_header(log, rhead, tail_blk);
-		if (error)
-			goto bread_err1;
 
 		/*
 		 * xfsprogs has a bug where record length is based on lsunit but
@@ -3001,21 +3003,18 @@ xlog_do_recovery_pass(
 		 */
 		h_size = be32_to_cpu(rhead->h_size);
 		h_len = be32_to_cpu(rhead->h_len);
-		if (h_len > h_size) {
-			if (h_len <= log->l_mp->m_logbsize &&
-			    be32_to_cpu(rhead->h_num_logops) == 1) {
-				xfs_warn(log->l_mp,
+		if (h_len > h_size && h_len <= log->l_mp->m_logbsize &&
+		    rhead->h_num_logops == cpu_to_be32(1)) {
+			xfs_warn(log->l_mp,
 		"invalid iclog size (%d bytes), using lsunit (%d bytes)",
-					 h_size, log->l_mp->m_logbsize);
-				h_size = log->l_mp->m_logbsize;
-			} else {
-				XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW,
-						log->l_mp);
-				error = -EFSCORRUPTED;
-				goto bread_err1;
-			}
+				 h_size, log->l_mp->m_logbsize);
+			h_size = log->l_mp->m_logbsize;
 		}
 
+		error = xlog_valid_rec_header(log, rhead, tail_blk, h_size);
+		if (error)
+			goto bread_err1;
+
 		if ((be32_to_cpu(rhead->h_version) & XLOG_VERSION_2) &&
 		    (h_size > XLOG_HEADER_CYCLE_SIZE)) {
 			hblks = h_size / XLOG_HEADER_CYCLE_SIZE;
@@ -3096,7 +3095,7 @@ xlog_do_recovery_pass(
 			}
 			rhead = (xlog_rec_header_t *)offset;
 			error = xlog_valid_rec_header(log, rhead,
-						split_hblks ? blk_no : 0);
+					split_hblks ? blk_no : 0, h_size);
 			if (error)
 				goto bread_err2;
 
@@ -3177,7 +3176,7 @@ xlog_do_recovery_pass(
 			goto bread_err2;
 
 		rhead = (xlog_rec_header_t *)offset;
-		error = xlog_valid_rec_header(log, rhead, blk_no);
+		error = xlog_valid_rec_header(log, rhead, blk_no, h_size);
 		if (error)
 			goto bread_err2;
 
diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
index ca93b6488377..492d80a0b406 100644
--- a/fs/xfs/xfs_refcount_item.c
+++ b/fs/xfs/xfs_refcount_item.c
@@ -555,7 +555,7 @@ xfs_cui_item_recover(
 	}
 
 	xfs_refcount_finish_one_cleanup(tp, rcur, error);
-	xfs_defer_move(parent_tp, tp);
+	xfs_defer_capture(parent_tp, tp);
 	error = xfs_trans_commit(tp);
 	return error;
 
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 86994d7f7cba..be01bfbc3ad9 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -778,8 +778,14 @@ xfs_growfs_rt_alloc(
 	struct xfs_bmbt_irec	map;		/* block map output */
 	int			nmap;		/* number of block maps */
 	int			resblks;	/* space reservation */
+	enum xfs_blft		buf_type;
 	struct xfs_trans	*tp;
 
+	if (ip == mp->m_rsumip)
+		buf_type = XFS_BLFT_RTSUMMARY_BUF;
+	else
+		buf_type = XFS_BLFT_RTBITMAP_BUF;
+
 	/*
 	 * Allocate space to the file, as necessary.
 	 */
@@ -841,6 +847,9 @@ xfs_growfs_rt_alloc(
 					mp->m_bsize, 0, &bp);
 			if (error)
 				goto out_trans_cancel;
+
+			xfs_trans_buf_set_type(tp, bp, buf_type);
+			bp->b_ops = &xfs_rtbuf_ops;
 			memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
 			xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
 			/*
@@ -1018,10 +1027,13 @@ xfs_growfs_rt(
 		xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL);
 		xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL);
 		/*
-		 * Update the bitmap inode's size.
+		 * Update the bitmap inode's size ondisk and incore.  We need
+		 * to update the incore size so that inode inactivation won't
+		 * punch what it thinks are "posteof" blocks.
 		 */
 		mp->m_rbmip->i_d.di_size =
 			nsbp->sb_rbmblocks * nsbp->sb_blocksize;
+		i_size_write(VFS_I(mp->m_rbmip), mp->m_rbmip->i_d.di_size);
 		xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
 		/*
 		 * Get the summary inode into the transaction.
@@ -1029,9 +1041,12 @@ xfs_growfs_rt(
 		xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL);
 		xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL);
 		/*
-		 * Update the summary inode's size.
+		 * Update the summary inode's size.  We need to update the
+		 * incore size so that inode inactivation won't punch what it
+		 * thinks are "posteof" blocks.
 		 */
 		mp->m_rsumip->i_d.di_size = nmp->m_rsumsize;
+		i_size_write(VFS_I(mp->m_rsumip), mp->m_rsumip->i_d.di_size);
 		xfs_trans_log_inode(tp, mp->m_rsumip, XFS_ILOG_CORE);
 		/*
 		 * Copy summary data from old to new sizes.
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 7636bc71c71f..2b34e6de3e8a 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -581,7 +581,10 @@
  */
 #define TEXT_TEXT							\
 		ALIGN_FUNCTION();					\
-		*(.text.hot TEXT_MAIN .text.fixup .text.unlikely)	\
+		*(.text.hot .text.hot.*)				\
+		*(TEXT_MAIN .text.fixup)				\
+		*(.text.unlikely .text.unlikely.*)			\
+		*(.text.unknown .text.unknown.*)			\
 		NOINSTR_TEXT						\
 		*(.text..refcount)					\
 		*(.ref.text)						\
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index b9780ae9dd26..72dc3a95fbaa 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -33,14 +33,16 @@
 struct drm_gpu_scheduler;
 struct drm_sched_rq;
 
+/* These are often used as an (initial) index
+ * to an array, and as such should start at 0.
+ */
 enum drm_sched_priority {
 	DRM_SCHED_PRIORITY_MIN,
-	DRM_SCHED_PRIORITY_LOW = DRM_SCHED_PRIORITY_MIN,
 	DRM_SCHED_PRIORITY_NORMAL,
-	DRM_SCHED_PRIORITY_HIGH_SW,
-	DRM_SCHED_PRIORITY_HIGH_HW,
+	DRM_SCHED_PRIORITY_HIGH,
 	DRM_SCHED_PRIORITY_KERNEL,
-	DRM_SCHED_PRIORITY_MAX,
+
+	DRM_SCHED_PRIORITY_COUNT,
 	DRM_SCHED_PRIORITY_INVALID = -1,
 	DRM_SCHED_PRIORITY_UNSET = -2
 };
@@ -274,7 +276,7 @@ struct drm_gpu_scheduler {
 	uint32_t			hw_submission_limit;
 	long				timeout;
 	const char			*name;
-	struct drm_sched_rq		sched_rq[DRM_SCHED_PRIORITY_MAX];
+	struct drm_sched_rq		sched_rq[DRM_SCHED_PRIORITY_COUNT];
 	wait_queue_head_t		wake_up_worker;
 	wait_queue_head_t		job_scheduled;
 	atomic_t			hw_rq_count;
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 15c706fb0a37..0e50ba3e88d7 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -86,6 +86,8 @@
 			   ARM_SMCCC_SMC_32,				\
 			   0, 0x7fff)
 
+#define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED	1
+
 /* Paravirtualised time calls (defined by ARM DEN0057A) */
 #define ARM_SMCCC_HV_PV_TIME_FEATURES				\
 	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,			\
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a911e5d06845..2e900fd461f2 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -293,7 +293,7 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 
 struct cpufreq_driver {
 	char		name[CPUFREQ_NAME_LEN];
-	u8		flags;
+	u16		flags;
 	void		*driver_data;
 
 	/* needed by all drivers */
@@ -417,9 +417,18 @@ struct cpufreq_driver {
  */
 #define CPUFREQ_IS_COOLING_DEV			BIT(7)
 
+/*
+ * Set by drivers that need to update internale upper and lower boundaries along
+ * with the target frequency and so the core and governors should also invoke
+ * the diver if the target frequency does not change, but the policy min or max
+ * may have changed.
+ */
+#define CPUFREQ_NEED_UPDATE_LIMITS		BIT(8)
+
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
 
+bool cpufreq_driver_test_flags(u16 flags);
 const char *cpufreq_get_current_driver(void);
 void *cpufreq_get_driver_data(void);
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7d4d04c9d3e6..dbbeb52ce5f3 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2861,7 +2861,6 @@ extern int do_pipe_flags(int *, int);
 #define __kernel_read_file_id(id) \
 	id(UNKNOWN, unknown)		\
 	id(FIRMWARE, firmware)		\
-	id(FIRMWARE_PREALLOC_BUFFER, firmware)	\
 	id(MODULE, kernel-module)		\
 	id(KEXEC_IMAGE, kexec-image)		\
 	id(KEXEC_INITRAMFS, kexec-initramfs)	\
diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h
index 774f7d3b8f6a..369221fd5518 100644
--- a/include/linux/hil_mlc.h
+++ b/include/linux/hil_mlc.h
@@ -103,7 +103,7 @@ struct hilse_node {
 
 /* Methods for back-end drivers, e.g. hp_sdc_mlc */
 typedef int	(hil_mlc_cts) (hil_mlc *mlc);
-typedef void	(hil_mlc_out) (hil_mlc *mlc);
+typedef int	(hil_mlc_out) (hil_mlc *mlc);
 typedef int	(hil_mlc_in)  (hil_mlc *mlc, suseconds_t timeout);
 
 struct hil_mlc_devinfo {
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 372100c755e7..e30be3dd5be0 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1212,4 +1212,22 @@ static inline bool mlx5_is_roce_enabled(struct mlx5_core_dev *dev)
 	return val.vbool;
 }
 
+/**
+ * mlx5_core_net - Provide net namespace of the mlx5_core_dev
+ * @dev: mlx5 core device
+ *
+ * mlx5_core_net() returns the net namespace of mlx5 core device.
+ * This can be called only in below described limited context.
+ * (a) When a devlink instance for mlx5_core is registered and
+ *     when devlink reload operation is disabled.
+ *     or
+ * (b) during devlink reload reload_down() and reload_up callbacks
+ *     where it is ensured that devlink instance's net namespace is
+ *     stable.
+ */
+static inline struct net *mlx5_core_net(struct mlx5_core_dev *dev)
+{
+	return devlink_net(priv_to_devlink(dev));
+}
+
 #endif /* MLX5_DRIVER_H */
diff --git a/include/linux/pci-ecam.h b/include/linux/pci-ecam.h
index 1af5cb02ef7f..033ce74f02e8 100644
--- a/include/linux/pci-ecam.h
+++ b/include/linux/pci-ecam.h
@@ -51,6 +51,7 @@ extern const struct pci_ecam_ops pci_generic_ecam_ops;
 
 #if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
 extern const struct pci_ecam_ops pci_32b_ops;	/* 32-bit accesses only */
+extern const struct pci_ecam_ops pci_32b_read_ops; /* 32-bit read only */
 extern const struct pci_ecam_ops hisi_pcie_ops;	/* HiSilicon */
 extern const struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 1.x & 2.x */
 extern const struct pci_ecam_ops pci_thunder_ecam_ops; /* Cavium ThunderX 1.x */
diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h
index d9015aac78c6..a6a6a3acab5a 100644
--- a/include/linux/rcupdate_trace.h
+++ b/include/linux/rcupdate_trace.h
@@ -50,6 +50,7 @@ static inline void rcu_read_lock_trace(void)
 	struct task_struct *t = current;
 
 	WRITE_ONCE(t->trc_reader_nesting, READ_ONCE(t->trc_reader_nesting) + 1);
+	barrier();
 	if (IS_ENABLED(CONFIG_TASKS_TRACE_RCU_READ_MB) &&
 	    t->trc_reader_special.b.need_mb)
 		smp_mb(); // Pairs with update-side barriers
@@ -72,6 +73,9 @@ static inline void rcu_read_unlock_trace(void)
 
 	rcu_lock_release(&rcu_trace_lock_map);
 	nesting = READ_ONCE(t->trc_reader_nesting) - 1;
+	barrier(); // Critical section before disabling.
+	// Disable IPI-based setting of .need_qs.
+	WRITE_ONCE(t->trc_reader_nesting, INT_MIN);
 	if (likely(!READ_ONCE(t->trc_reader_special.s)) || nesting) {
 		WRITE_ONCE(t->trc_reader_nesting, nesting);
 		return;  // We assume shallow reader nesting.
diff --git a/include/linux/time64.h b/include/linux/time64.h
index c9dcb3e5781f..5117cb5b5656 100644
--- a/include/linux/time64.h
+++ b/include/linux/time64.h
@@ -124,6 +124,10 @@ static inline bool timespec64_valid_settod(const struct timespec64 *ts)
  */
 static inline s64 timespec64_to_ns(const struct timespec64 *ts)
 {
+	/* Prevent multiplication overflow */
+	if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
+		return KTIME_MAX;
+
 	return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
 }
 
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
index b6c233e79bd4..1df895e4680b 100644
--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -473,6 +473,7 @@ static inline unsigned int rdo_max_power(u32 rdo)
 #define PD_T_ERROR_RECOVERY	100	/* minimum 25 is insufficient */
 #define PD_T_SRCSWAPSTDBY      625     /* Maximum of 650ms */
 #define PD_T_NEWSRC            250     /* Maximum of 275ms */
+#define PD_T_SWAP_SRC_START	20	/* Minimum of 20ms */
 
 #define PD_T_DRP_TRY		100	/* 75 - 150 ms */
 #define PD_T_DRP_TRYWAIT	600	/* 400 - 800 ms */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 5b4f0efc4241..ef7b786b8675 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1463,11 +1463,6 @@ enum rdma_remove_reason {
 	RDMA_REMOVE_DRIVER_REMOVE,
 	/* uobj is being cleaned-up before being committed */
 	RDMA_REMOVE_ABORT,
-	/*
-	 * uobj has been fully created, with the uobj->object set, but is being
-	 * cleaned up before being comitted
-	 */
-	RDMA_REMOVE_ABORT_HWOBJ,
 };
 
 struct ib_rdmacg_object {
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e76bac4d14c5..69ade4fb71aa 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -165,7 +165,8 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
 				 size_t *offset, size_t *len);
 extern void scsi_kunmap_atomic_sg(void *virt);
 
-extern blk_status_t scsi_init_io(struct scsi_cmnd *cmd);
+blk_status_t scsi_alloc_sgtables(struct scsi_cmnd *cmd);
+void scsi_free_sgtables(struct scsi_cmnd *cmd);
 
 #ifdef CONFIG_SCSI_DMA
 extern int scsi_dma_map(struct scsi_cmnd *cmd);
diff --git a/include/trace/events/afs.h b/include/trace/events/afs.h
index 5f0c1cf1ea13..342b35fc33c5 100644
--- a/include/trace/events/afs.h
+++ b/include/trace/events/afs.h
@@ -40,6 +40,7 @@ enum afs_server_trace {
 	afs_server_trace_get_new_cbi,
 	afs_server_trace_get_probe,
 	afs_server_trace_give_up_cb,
+	afs_server_trace_purging,
 	afs_server_trace_put_call,
 	afs_server_trace_put_cbi,
 	afs_server_trace_put_find_rsq,
@@ -270,6 +271,7 @@ enum afs_cb_break_reason {
 	EM(afs_server_trace_get_new_cbi,	"GET cbi  ") \
 	EM(afs_server_trace_get_probe,		"GET probe") \
 	EM(afs_server_trace_give_up_cb,		"giveup-cb") \
+	EM(afs_server_trace_purging,		"PURGE    ") \
 	EM(afs_server_trace_put_call,		"PUT call ") \
 	EM(afs_server_trace_put_cbi,		"PUT cbi  ") \
 	EM(afs_server_trace_put_find_rsq,	"PUT f-rsq") \
@@ -884,19 +886,6 @@ TRACE_EVENT(afs_dir_check_failed,
 		      __entry->vnode, __entry->off, __entry->i_size)
 	    );
 
-/*
- * We use page->private to hold the amount of the page that we've written to,
- * splitting the field into two parts.  However, we need to represent a range
- * 0...PAGE_SIZE inclusive, so we can't support 64K pages on a 32-bit system.
- */
-#if PAGE_SIZE > 32768
-#define AFS_PRIV_MAX	0xffffffff
-#define AFS_PRIV_SHIFT	32
-#else
-#define AFS_PRIV_MAX	0xffff
-#define AFS_PRIV_SHIFT	16
-#endif
-
 TRACE_EVENT(afs_page_dirty,
 	    TP_PROTO(struct afs_vnode *vnode, const char *where,
 		     pgoff_t page, unsigned long priv),
@@ -917,10 +906,11 @@ TRACE_EVENT(afs_page_dirty,
 		    __entry->priv = priv;
 			   ),
 
-	    TP_printk("vn=%p %lx %s %lu-%lu",
+	    TP_printk("vn=%p %lx %s %zx-%zx%s",
 		      __entry->vnode, __entry->page, __entry->where,
-		      __entry->priv & AFS_PRIV_MAX,
-		      __entry->priv >> AFS_PRIV_SHIFT)
+		      afs_page_dirty_from(__entry->priv),
+		      afs_page_dirty_to(__entry->priv),
+		      afs_is_page_dirty_mmapped(__entry->priv) ? " M" : "")
 	    );
 
 TRACE_EVENT(afs_call_state,
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 863335ecb7e8..b9241836d4f7 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1176,25 +1176,27 @@ DEFINE_EVENT(btrfs__reserved_extent,  btrfs_reserved_extent_free,
 
 TRACE_EVENT(find_free_extent,
 
-	TP_PROTO(const struct btrfs_fs_info *fs_info, u64 num_bytes,
+	TP_PROTO(const struct btrfs_root *root, u64 num_bytes,
 		 u64 empty_size, u64 data),
 
-	TP_ARGS(fs_info, num_bytes, empty_size, data),
+	TP_ARGS(root, num_bytes, empty_size, data),
 
 	TP_STRUCT__entry_btrfs(
+		__field(	u64,	root_objectid		)
 		__field(	u64,	num_bytes		)
 		__field(	u64,	empty_size		)
 		__field(	u64,	data			)
 	),
 
-	TP_fast_assign_btrfs(fs_info,
+	TP_fast_assign_btrfs(root->fs_info,
+		__entry->root_objectid	= root->root_key.objectid;
 		__entry->num_bytes	= num_bytes;
 		__entry->empty_size	= empty_size;
 		__entry->data		= data;
 	),
 
 	TP_printk_btrfs("root=%llu(%s) len=%llu empty_size=%llu flags=%llu(%s)",
-		  show_root_type(BTRFS_EXTENT_TREE_OBJECTID),
+		  show_root_type(__entry->root_objectid),
 		  __entry->num_bytes, __entry->empty_size, __entry->data,
 		  __print_flags((unsigned long)__entry->data, "|",
 				 BTRFS_GROUP_FLAGS))
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
index 9ba64ca6b4ac..6b885982ece6 100644
--- a/include/uapi/linux/btrfs_tree.h
+++ b/include/uapi/linux/btrfs_tree.h
@@ -4,6 +4,11 @@
 
 #include <linux/btrfs.h>
 #include <linux/types.h>
+#ifdef __KERNEL__
+#include <linux/stddef.h>
+#else
+#include <stddef.h>
+#endif
 
 /*
  * This header contains the structure definitions and constants used
@@ -644,6 +649,15 @@ struct btrfs_root_item {
 	__le64 reserved[8]; /* for future */
 } __attribute__ ((__packed__));
 
+/*
+ * Btrfs root item used to be smaller than current size.  The old format ends
+ * at where member generation_v2 is.
+ */
+static inline __u32 btrfs_legacy_root_item_size(void)
+{
+	return offsetof(struct btrfs_root_item, generation_v2);
+}
+
 /*
  * this is used for both forward and backward root refs
  */
diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h
index bf197e99b98f..ed5415e0f1c1 100644
--- a/include/uapi/linux/nfs4.h
+++ b/include/uapi/linux/nfs4.h
@@ -139,6 +139,8 @@
 
 #define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A	0x40000000
 #define EXCHGID4_FLAG_CONFIRMED_R		0x80000000
+
+#define EXCHGID4_FLAG_SUPP_FENCE_OPS		0x00000004
 /*
  * Since the validity of these bits depends on whether
  * they're set in the argument or response, have separate
@@ -146,6 +148,7 @@
  */
 #define EXCHGID4_FLAG_MASK_A			0x40070103
 #define EXCHGID4_FLAG_MASK_R			0x80070103
+#define EXCHGID4_2_FLAG_MASK_R			0x80070107
 
 #define SEQ4_STATUS_CB_PATH_DOWN		0x00000001
 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING	0x00000002
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 235db7754606..f717826d5d7c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -373,9 +373,9 @@ enum v4l2_hsv_encoding {
 
 enum v4l2_quantization {
 	/*
-	 * The default for R'G'B' quantization is always full range, except
-	 * for the BT2020 colorspace. For Y'CbCr the quantization is always
-	 * limited range, except for COLORSPACE_JPEG: this is full range.
+	 * The default for R'G'B' quantization is always full range.
+	 * For Y'CbCr the quantization is always limited range, except
+	 * for COLORSPACE_JPEG: this is full range.
 	 */
 	V4L2_QUANTIZATION_DEFAULT     = 0,
 	V4L2_QUANTIZATION_FULL_RANGE  = 1,
@@ -384,14 +384,13 @@ enum v4l2_quantization {
 
 /*
  * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
- * This depends on whether the image is RGB or not, the colorspace and the
- * Y'CbCr encoding.
+ * This depends on whether the image is RGB or not, the colorspace.
+ * The Y'CbCr encoding is not used anymore, but is still there for backwards
+ * compatibility.
  */
 #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
-	(((is_rgb_or_hsv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
-	 V4L2_QUANTIZATION_LIM_RANGE : \
-	 (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
-	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
+	(((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
+	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)
 
 /*
  * Deprecated names for opRGB colorspace (IEC 61966-2-5)
diff --git a/include/xen/events.h b/include/xen/events.h
index df1e6391f63f..3b8155c2ea03 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -15,10 +15,15 @@
 unsigned xen_evtchn_nr_channels(void);
 
 int bind_evtchn_to_irq(evtchn_port_t evtchn);
+int bind_evtchn_to_irq_lateeoi(evtchn_port_t evtchn);
 int bind_evtchn_to_irqhandler(evtchn_port_t evtchn,
 			      irq_handler_t handler,
 			      unsigned long irqflags, const char *devname,
 			      void *dev_id);
+int bind_evtchn_to_irqhandler_lateeoi(evtchn_port_t evtchn,
+			      irq_handler_t handler,
+			      unsigned long irqflags, const char *devname,
+			      void *dev_id);
 int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu);
 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
 			    irq_handler_t handler,
@@ -32,12 +37,20 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
 			   void *dev_id);
 int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
 				   evtchn_port_t remote_port);
+int bind_interdomain_evtchn_to_irq_lateeoi(unsigned int remote_domain,
+					   evtchn_port_t remote_port);
 int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
 					  evtchn_port_t remote_port,
 					  irq_handler_t handler,
 					  unsigned long irqflags,
 					  const char *devname,
 					  void *dev_id);
+int bind_interdomain_evtchn_to_irqhandler_lateeoi(unsigned int remote_domain,
+						  evtchn_port_t remote_port,
+						  irq_handler_t handler,
+						  unsigned long irqflags,
+						  const char *devname,
+						  void *dev_id);
 
 /*
  * Common unbind function for all event sources. Takes IRQ to unbind from.
@@ -46,6 +59,14 @@ int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
  */
 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
 
+/*
+ * Send late EOI for an IRQ bound to an event channel via one of the *_lateeoi
+ * functions above.
+ */
+void xen_irq_lateeoi(unsigned int irq, unsigned int eoi_flags);
+/* Signal an event was spurious, i.e. there was no action resulting from it. */
+#define XEN_EOI_FLAG_SPURIOUS	0x00000001
+
 #define XEN_IRQ_PRIORITY_MAX     EVTCHN_FIFO_PRIORITY_MAX
 #define XEN_IRQ_PRIORITY_DEFAULT EVTCHN_FIFO_PRIORITY_DEFAULT
 #define XEN_IRQ_PRIORITY_MIN     EVTCHN_FIFO_PRIORITY_MIN
diff --git a/init/Kconfig b/init/Kconfig
index d6a0b31b13dc..2a5df1cf838c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -682,7 +682,8 @@ config IKHEADERS
 
 config LOG_BUF_SHIFT
 	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
-	range 12 25
+	range 12 25 if !H8300
+	range 12 19 if H8300
 	default 17
 	depends on PRINTK
 	help
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 43cd175c66a5..718bbdc8b3c6 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5246,6 +5246,10 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
 			dst, reg_type_str[ptr_reg->type]);
 		return -EACCES;
 	case CONST_PTR_TO_MAP:
+		/* smin_val represents the known value */
+		if (known && smin_val == 0 && opcode == BPF_ADD)
+			break;
+		/* fall-through */
 	case PTR_TO_PACKET_END:
 	case PTR_TO_SOCKET:
 	case PTR_TO_SOCKET_OR_NULL:
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index b16dbc1bf056..404d6d47a11d 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -94,14 +94,6 @@ int dbg_switch_cpu;
 /* Use kdb or gdbserver mode */
 int dbg_kdb_mode = 1;
 
-static int __init opt_kgdb_con(char *str)
-{
-	kgdb_use_con = 1;
-	return 0;
-}
-
-early_param("kgdbcon", opt_kgdb_con);
-
 module_param(kgdb_use_con, int, 0644);
 module_param(kgdbreboot, int, 0644);
 
@@ -920,6 +912,20 @@ static struct console kgdbcons = {
 	.index		= -1,
 };
 
+static int __init opt_kgdb_con(char *str)
+{
+	kgdb_use_con = 1;
+
+	if (kgdb_io_module_registered && !kgdb_con_registered) {
+		register_console(&kgdbcons);
+		kgdb_con_registered = 1;
+	}
+
+	return 0;
+}
+
+early_param("kgdbcon", opt_kgdb_con);
+
 #ifdef CONFIG_MAGIC_SYSRQ
 static void sysrq_handle_dbg(int key)
 {
diff --git a/kernel/futex.c b/kernel/futex.c
index a5876694a60e..044c1a4fbece 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -39,6 +39,7 @@
 #include <linux/freezer.h>
 #include <linux/memblock.h>
 #include <linux/fault-inject.h>
+#include <linux/time_namespace.h>
 
 #include <asm/futex.h>
 
@@ -1502,8 +1503,10 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_pi_state *pi_
 	 */
 	newval = FUTEX_WAITERS | task_pid_vnr(new_owner);
 
-	if (unlikely(should_fail_futex(true)))
+	if (unlikely(should_fail_futex(true))) {
 		ret = -EFAULT;
+		goto out_unlock;
+	}
 
 	ret = cmpxchg_futex_value_locked(&curval, uaddr, uval, newval);
 	if (!ret && (curval != uval)) {
@@ -3797,6 +3800,8 @@ SYSCALL_DEFINE6(futex, u32 __user *, uaddr, int, op, u32, val,
 		t = timespec64_to_ktime(ts);
 		if (cmd == FUTEX_WAIT)
 			t = ktime_add_safe(ktime_get(), t);
+		else if (!(op & FUTEX_CLOCK_REALTIME))
+			t = timens_ktime_to_host(CLOCK_MONOTONIC, t);
 		tp = &t;
 	}
 	/*
@@ -3989,6 +3994,8 @@ SYSCALL_DEFINE6(futex_time32, u32 __user *, uaddr, int, op, u32, val,
 		t = timespec64_to_ktime(ts);
 		if (cmd == FUTEX_WAIT)
 			t = ktime_add_safe(ktime_get(), t);
+		else if (!(op & FUTEX_CLOCK_REALTIME))
+			t = timens_ktime_to_host(CLOCK_MONOTONIC, t);
 		tp = &t;
 	}
 	if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE ||
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 85d15f0362dc..3eb35ad1b524 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3681,7 +3681,7 @@ void lockdep_hardirqs_on_prepare(unsigned long ip)
 	if (unlikely(in_nmi()))
 		return;
 
-	if (unlikely(__this_cpu_read(lockdep_recursion)))
+	if (unlikely(this_cpu_read(lockdep_recursion)))
 		return;
 
 	if (unlikely(lockdep_hardirqs_enabled())) {
@@ -3750,7 +3750,7 @@ void noinstr lockdep_hardirqs_on(unsigned long ip)
 		goto skip_checks;
 	}
 
-	if (unlikely(__this_cpu_read(lockdep_recursion)))
+	if (unlikely(this_cpu_read(lockdep_recursion)))
 		return;
 
 	if (lockdep_hardirqs_enabled()) {
diff --git a/kernel/module.c b/kernel/module.c
index 8486123ffd7a..cc9281398f69 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -4028,7 +4028,7 @@ SYSCALL_DEFINE3(finit_module, int, fd, const char __user *, uargs, int, flags)
 {
 	struct load_info info = { };
 	loff_t size;
-	void *hdr;
+	void *hdr = NULL;
 	int err;
 
 	err = may_init_module();
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index 05d3e1375e4c..a443b25e12ed 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -821,6 +821,12 @@ static void trc_read_check_handler(void *t_in)
 		WRITE_ONCE(t->trc_reader_checked, true);
 		goto reset_ipi;
 	}
+	// If we are racing with an rcu_read_unlock_trace(), try again later.
+	if (unlikely(t->trc_reader_nesting < 0)) {
+		if (WARN_ON_ONCE(atomic_dec_and_test(&trc_n_readers_need_end)))
+			wake_up(&trc_wait);
+		goto reset_ipi;
+	}
 	WRITE_ONCE(t->trc_reader_checked, true);
 
 	// Get here if the task is in a read-side critical section.  Set
@@ -1072,15 +1078,17 @@ static void rcu_tasks_trace_postgp(struct rcu_tasks *rtp)
 		if (ret)
 			break;  // Count reached zero.
 		// Stall warning time, so make a list of the offenders.
+		rcu_read_lock();
 		for_each_process_thread(g, t)
 			if (READ_ONCE(t->trc_reader_special.b.need_qs))
 				trc_add_holdout(t, &holdouts);
+		rcu_read_unlock();
 		firstreport = true;
-		list_for_each_entry_safe(t, g, &holdouts, trc_holdout_list)
-			if (READ_ONCE(t->trc_reader_special.b.need_qs)) {
+		list_for_each_entry_safe(t, g, &holdouts, trc_holdout_list) {
+			if (READ_ONCE(t->trc_reader_special.b.need_qs))
 				show_stalled_task_trace(t, &firstreport);
-				trc_del_holdout(t);
-			}
+			trc_del_holdout(t); // Release task_struct reference.
+		}
 		if (firstreport)
 			pr_err("INFO: rcu_tasks_trace detected stalls? (Counter/taskslist mismatch?)\n");
 		show_stalled_ipi_trace();
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 388a2ad292bf..c8f62e2d0276 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -416,7 +416,7 @@ bool rcu_eqs_special_set(int cpu)
  *
  * The caller must have disabled interrupts and must not be idle.
  */
-void rcu_momentary_dyntick_idle(void)
+notrace void rcu_momentary_dyntick_idle(void)
 {
 	int special;
 
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index e39008242cf4..59d511e32673 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -102,7 +102,8 @@ static bool sugov_should_update_freq(struct sugov_policy *sg_policy, u64 time)
 static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
 				   unsigned int next_freq)
 {
-	if (sg_policy->next_freq == next_freq)
+	if (sg_policy->next_freq == next_freq &&
+	    !cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS))
 		return false;
 
 	sg_policy->next_freq = next_freq;
@@ -175,7 +176,8 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy,
 
 	freq = map_util_freq(util, freq, max);
 
-	if (freq == sg_policy->cached_raw_freq && !sg_policy->need_freq_update)
+	if (freq == sg_policy->cached_raw_freq && !sg_policy->need_freq_update &&
+	    !cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS))
 		return sg_policy->next_freq;
 
 	sg_policy->need_freq_update = false;
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 676d4af62103..c359ef4380ad 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1472,13 +1472,7 @@ static const struct file_operations seccomp_notify_ops = {
 
 static struct file *init_listener(struct seccomp_filter *filter)
 {
-	struct file *ret = ERR_PTR(-EBUSY);
-	struct seccomp_filter *cur;
-
-	for (cur = current->seccomp.filter; cur; cur = cur->prev) {
-		if (cur->notif)
-			goto out;
-	}
+	struct file *ret;
 
 	ret = ERR_PTR(-ENOMEM);
 	filter->notif = kzalloc(sizeof(*(filter->notif)), GFP_KERNEL);
@@ -1504,6 +1498,31 @@ static struct file *init_listener(struct seccomp_filter *filter)
 	return ret;
 }
 
+/*
+ * Does @new_child have a listener while an ancestor also has a listener?
+ * If so, we'll want to reject this filter.
+ * This only has to be tested for the current process, even in the TSYNC case,
+ * because TSYNC installs @child with the same parent on all threads.
+ * Note that @new_child is not hooked up to its parent at this point yet, so
+ * we use current->seccomp.filter.
+ */
+static bool has_duplicate_listener(struct seccomp_filter *new_child)
+{
+	struct seccomp_filter *cur;
+
+	/* must be protected against concurrent TSYNC */
+	lockdep_assert_held(&current->sighand->siglock);
+
+	if (!new_child->notif)
+		return false;
+	for (cur = current->seccomp.filter; cur; cur = cur->prev) {
+		if (cur->notif)
+			return true;
+	}
+
+	return false;
+}
+
 /**
  * seccomp_set_mode_filter: internal function for setting seccomp filter
  * @flags:  flags to change filter behavior
@@ -1575,6 +1594,11 @@ static long seccomp_set_mode_filter(unsigned int flags,
 	if (!seccomp_may_assign_mode(seccomp_mode))
 		goto out;
 
+	if (has_duplicate_listener(prepared)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	ret = seccomp_attach_filter(flags, prepared);
 	if (ret)
 		goto out;
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 865bb0228ab6..890b79cf0e7c 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -178,7 +178,7 @@ static void ack_state(struct multi_stop_data *msdata)
 		set_state(msdata, msdata->state + 1);
 }
 
-void __weak stop_machine_yield(const struct cpumask *cpumask)
+notrace void __weak stop_machine_yield(const struct cpumask *cpumask)
 {
 	cpu_relax();
 }
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index ca4e6d57d68b..00629e658ca1 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -172,10 +172,6 @@ static void set_cpu_itimer(struct task_struct *tsk, unsigned int clock_id,
 	u64 oval, nval, ointerval, ninterval;
 	struct cpu_itimer *it = &tsk->signal->it[clock_id];
 
-	/*
-	 * Use the to_ktime conversion because that clamps the maximum
-	 * value to KTIME_MAX and avoid multiplication overflows.
-	 */
 	nval = timespec64_to_ns(&value->it_value);
 	ninterval = timespec64_to_ns(&value->it_interval);
 
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 1c03eec6ca9b..4b7bdd7a5f27 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -68,13 +68,13 @@ static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 	return (cyc * mult) >> shift;
 }
 
-struct clock_read_data *sched_clock_read_begin(unsigned int *seq)
+notrace struct clock_read_data *sched_clock_read_begin(unsigned int *seq)
 {
 	*seq = raw_read_seqcount_latch(&cd.seq);
 	return cd.read_data + (*seq & 1);
 }
 
-int sched_clock_read_retry(unsigned int seq)
+notrace int sched_clock_read_retry(unsigned int seq)
 {
 	return read_seqcount_retry(&cd.seq, seq);
 }
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 93ef0ab6ea20..5c6a9c6a058f 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1952,18 +1952,18 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
 {
 	struct ring_buffer_per_cpu *cpu_buffer;
 	unsigned long nr_pages;
-	int cpu, err = 0;
+	int cpu, err;
 
 	/*
 	 * Always succeed at resizing a non-existent buffer:
 	 */
 	if (!buffer)
-		return size;
+		return 0;
 
 	/* Make sure the requested buffer exists */
 	if (cpu_id != RING_BUFFER_ALL_CPUS &&
 	    !cpumask_test_cpu(cpu_id, buffer->cpumask))
-		return size;
+		return 0;
 
 	nr_pages = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
 
@@ -2119,7 +2119,7 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
 	}
 
 	mutex_unlock(&buffer->mutex);
-	return size;
+	return 0;
 
  out_err:
 	for_each_buffer_cpu(buffer, cpu) {
@@ -4866,6 +4866,9 @@ void ring_buffer_reset_cpu(struct trace_buffer *buffer, int cpu)
 	if (!cpumask_test_cpu(cpu, buffer->cpumask))
 		return;
 
+	/* prevent another thread from changing buffer sizes */
+	mutex_lock(&buffer->mutex);
+
 	atomic_inc(&cpu_buffer->resize_disabled);
 	atomic_inc(&cpu_buffer->record_disabled);
 
@@ -4876,6 +4879,8 @@ void ring_buffer_reset_cpu(struct trace_buffer *buffer, int cpu)
 
 	atomic_dec(&cpu_buffer->record_disabled);
 	atomic_dec(&cpu_buffer->resize_disabled);
+
+	mutex_unlock(&buffer->mutex);
 }
 EXPORT_SYMBOL_GPL(ring_buffer_reset_cpu);
 
@@ -4889,6 +4894,9 @@ void ring_buffer_reset_online_cpus(struct trace_buffer *buffer)
 	struct ring_buffer_per_cpu *cpu_buffer;
 	int cpu;
 
+	/* prevent another thread from changing buffer sizes */
+	mutex_lock(&buffer->mutex);
+
 	for_each_online_buffer_cpu(buffer, cpu) {
 		cpu_buffer = buffer->buffers[cpu];
 
@@ -4907,6 +4915,8 @@ void ring_buffer_reset_online_cpus(struct trace_buffer *buffer)
 		atomic_dec(&cpu_buffer->record_disabled);
 		atomic_dec(&cpu_buffer->resize_disabled);
 	}
+
+	mutex_unlock(&buffer->mutex);
 }
 
 /**
diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c
index c8892156db34..65e8c27141c0 100644
--- a/kernel/trace/trace_events_synth.c
+++ b/kernel/trace/trace_events_synth.c
@@ -465,6 +465,7 @@ static struct synth_field *parse_synth_field(int argc, const char **argv,
 	struct synth_field *field;
 	const char *prefix = NULL, *field_type = argv[0], *field_name, *array;
 	int len, ret = 0;
+	struct seq_buf s;
 	ssize_t size;
 
 	if (field_type[0] == ';')
@@ -503,13 +504,9 @@ static struct synth_field *parse_synth_field(int argc, const char **argv,
 		field_type++;
 	len = strlen(field_type) + 1;
 
-        if (array) {
-                int l = strlen(array);
+	if (array)
+		len += strlen(array);
 
-                if (l && array[l - 1] == ';')
-                        l--;
-                len += l;
-        }
 	if (prefix)
 		len += strlen(prefix);
 
@@ -518,14 +515,18 @@ static struct synth_field *parse_synth_field(int argc, const char **argv,
 		ret = -ENOMEM;
 		goto free;
 	}
+	seq_buf_init(&s, field->type, len);
 	if (prefix)
-		strcat(field->type, prefix);
-	strcat(field->type, field_type);
+		seq_buf_puts(&s, prefix);
+	seq_buf_puts(&s, field_type);
 	if (array) {
-		strcat(field->type, array);
-		if (field->type[len - 1] == ';')
-			field->type[len - 1] = '\0';
+		seq_buf_puts(&s, array);
+		if (s.buffer[s.len - 1] == ';')
+			s.len--;
 	}
+	if (WARN_ON_ONCE(!seq_buf_buffer_left(&s)))
+		goto free;
+	s.buffer[s.len] = '\0';
 
 	size = synth_field_size(field->type);
 	if (size <= 0) {
diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 5d63a8857f36..c448642e0f78 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -514,7 +514,7 @@ struct scatterlist *sgl_alloc_order(unsigned long long length,
 		elem_len = min_t(u64, length, PAGE_SIZE << order);
 		page = alloc_pages(gfp, order);
 		if (!page) {
-			sgl_free(sgl);
+			sgl_free_order(sgl, order);
 			return NULL;
 		}
 
diff --git a/mm/slab.c b/mm/slab.c
index f658e86ec8ce..5c70600d8b1c 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3440,7 +3440,7 @@ void ___cache_free(struct kmem_cache *cachep, void *objp,
 		memset(objp, 0, cachep->object_size);
 	kmemleak_free_recursive(objp, cachep->flags);
 	objp = cache_free_debugcheck(cachep, objp, caller);
-	memcg_slab_free_hook(cachep, virt_to_head_page(objp), objp);
+	memcg_slab_free_hook(cachep, &objp, 1);
 
 	/*
 	 * Skip calling cache_free_alien() when the platform is not numa.
diff --git a/mm/slab.h b/mm/slab.h
index 6cc323f1313a..6dd4b702888a 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -345,30 +345,42 @@ static inline void memcg_slab_post_alloc_hook(struct kmem_cache *s,
 	obj_cgroup_put(objcg);
 }
 
-static inline void memcg_slab_free_hook(struct kmem_cache *s, struct page *page,
-					void *p)
+static inline void memcg_slab_free_hook(struct kmem_cache *s_orig,
+					void **p, int objects)
 {
+	struct kmem_cache *s;
 	struct obj_cgroup *objcg;
+	struct page *page;
 	unsigned int off;
+	int i;
 
 	if (!memcg_kmem_enabled())
 		return;
 
-	if (!page_has_obj_cgroups(page))
-		return;
+	for (i = 0; i < objects; i++) {
+		if (unlikely(!p[i]))
+			continue;
 
-	off = obj_to_index(s, page, p);
-	objcg = page_obj_cgroups(page)[off];
-	page_obj_cgroups(page)[off] = NULL;
+		page = virt_to_head_page(p[i]);
+		if (!page_has_obj_cgroups(page))
+			continue;
 
-	if (!objcg)
-		return;
+		if (!s_orig)
+			s = page->slab_cache;
+		else
+			s = s_orig;
 
-	obj_cgroup_uncharge(objcg, obj_full_size(s));
-	mod_objcg_state(objcg, page_pgdat(page), cache_vmstat_idx(s),
-			-obj_full_size(s));
+		off = obj_to_index(s, page, p[i]);
+		objcg = page_obj_cgroups(page)[off];
+		if (!objcg)
+			continue;
 
-	obj_cgroup_put(objcg);
+		page_obj_cgroups(page)[off] = NULL;
+		obj_cgroup_uncharge(objcg, obj_full_size(s));
+		mod_objcg_state(objcg, page_pgdat(page), cache_vmstat_idx(s),
+				-obj_full_size(s));
+		obj_cgroup_put(objcg);
+	}
 }
 
 #else /* CONFIG_MEMCG_KMEM */
@@ -406,8 +418,8 @@ static inline void memcg_slab_post_alloc_hook(struct kmem_cache *s,
 {
 }
 
-static inline void memcg_slab_free_hook(struct kmem_cache *s, struct page *page,
-					void *p)
+static inline void memcg_slab_free_hook(struct kmem_cache *s,
+					void **p, int objects)
 {
 }
 #endif /* CONFIG_MEMCG_KMEM */
diff --git a/mm/slub.c b/mm/slub.c
index 6d3574013b2f..0cbe67f13946 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3091,7 +3091,7 @@ static __always_inline void do_slab_free(struct kmem_cache *s,
 	struct kmem_cache_cpu *c;
 	unsigned long tid;
 
-	memcg_slab_free_hook(s, page, head);
+	memcg_slab_free_hook(s, &head, 1);
 redo:
 	/*
 	 * Determine the currently cpus per cpu slab.
@@ -3253,6 +3253,7 @@ void kmem_cache_free_bulk(struct kmem_cache *s, size_t size, void **p)
 	if (WARN_ON(!size))
 		return;
 
+	memcg_slab_free_hook(s, p, size);
 	do {
 		struct detached_freelist df;
 
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index c0762a302162..8f528e783a6c 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -1023,7 +1023,7 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args)
 
 	csocket = NULL;
 
-	if (addr == NULL)
+	if (!addr || !strlen(addr))
 		return -EINVAL;
 
 	if (strlen(addr) >= UNIX_PATH_MAX) {
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index d4d7a0e52491..9d4a21b819c1 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2998,6 +2998,11 @@ static void con_fault(struct ceph_connection *con)
 		ceph_msg_put(con->in_msg);
 		con->in_msg = NULL;
 	}
+	if (con->out_msg) {
+		BUG_ON(con->out_msg->con != con);
+		ceph_msg_put(con->out_msg);
+		con->out_msg = NULL;
+	}
 
 	/* Requeue anything that hasn't been acked */
 	list_splice_init(&con->out_sent, &con->out_queue);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index dca01d7e6e3e..282b0bc201ee 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4209,6 +4209,12 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
 	if (is_zero_ether_addr(ra))
 		goto out_free;
 
+	if (local->ops->wake_tx_queue) {
+		u16 queue = __ieee80211_select_queue(sdata, sta, skb);
+		skb_set_queue_mapping(skb, queue);
+		skb_get_hash(skb);
+	}
+
 	multicast = is_multicast_ether_addr(ra);
 
 	if (sta)
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index 999eee1ed61c..e81a28f30f1d 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -70,7 +70,13 @@ static int proc_do_xprt(struct ctl_table *table, int write,
 		return 0;
 	}
 	len = svc_print_xprts(tmpbuf, sizeof(tmpbuf));
-	return memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len);
+	*lenp = memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len);
+
+	if (*lenp < 0) {
+		*lenp = 0;
+		return -EINVAL;
+	}
+	return 0;
 }
 
 static int
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 5a8e47bbfb9f..13fbc2dd4196 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1520,10 +1520,13 @@ xprt_transmit(struct rpc_task *task)
 {
 	struct rpc_rqst *next, *req = task->tk_rqstp;
 	struct rpc_xprt	*xprt = req->rq_xprt;
-	int status;
+	int counter, status;
 
 	spin_lock(&xprt->queue_lock);
+	counter = 0;
 	while (!list_empty(&xprt->xmit_queue)) {
+		if (++counter == 20)
+			break;
 		next = list_first_entry(&xprt->xmit_queue,
 				struct rpc_rqst, rq_xmit);
 		xprt_pin_rqst(next);
@@ -1531,7 +1534,6 @@ xprt_transmit(struct rpc_task *task)
 		status = xprt_request_transmit(next, task);
 		if (status == -EBADMSG && next != req)
 			status = 0;
-		cond_resched();
 		spin_lock(&xprt->queue_lock);
 		xprt_unpin_rqst(next);
 		if (status == 0) {
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index c821e9867139..63a9a2a39da7 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -1111,6 +1111,7 @@ static void l2fwd(struct xsk_socket_info *xsk, struct pollfd *fds)
 	while (ret != rcvd) {
 		if (ret < 0)
 			exit_with_error(-ret);
+		complete_tx_l2fwd(xsk, fds);
 		if (xsk_ring_prod__needs_wakeup(&xsk->tx))
 			kick_tx(xsk);
 		ret = xsk_ring_prod__reserve(&xsk->tx, rcvd, &idx_tx);
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index e9cbadade74b..ac02b7632353 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -169,7 +169,7 @@ int __init integrity_add_key(const unsigned int id, const void *data,
 
 int __init integrity_load_x509(const unsigned int id, const char *path)
 {
-	void *data;
+	void *data = NULL;
 	loff_t size;
 	int rc;
 	key_perm_t perm;
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index e3fcad871861..15a44c5022f7 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -272,7 +272,7 @@ static const struct file_operations ima_ascii_measurements_ops = {
 
 static ssize_t ima_read_policy(char *path)
 {
-	void *data;
+	void *data = NULL;
 	char *datap;
 	loff_t size;
 	int rc, pathlen = strlen(path);
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 4c86cd4eece0..e22caa833b7d 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -621,19 +621,17 @@ void ima_post_path_mknod(struct dentry *dentry)
 int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
 {
 	/*
-	 * READING_FIRMWARE_PREALLOC_BUFFER
-	 *
 	 * Do devices using pre-allocated memory run the risk of the
 	 * firmware being accessible to the device prior to the completion
 	 * of IMA's signature verification any more than when using two
-	 * buffers?
+	 * buffers? It may be desirable to include the buffer address
+	 * in this API and walk all the dma_map_single() mappings to check.
 	 */
 	return 0;
 }
 
 const int read_idmap[READING_MAX_ID] = {
 	[READING_FIRMWARE] = FIRMWARE_CHECK,
-	[READING_FIRMWARE_PREALLOC_BUFFER] = FIRMWARE_CHECK,
 	[READING_MODULE] = MODULE_CHECK,
 	[READING_KEXEC_IMAGE] = KEXEC_KERNEL_CHECK,
 	[READING_KEXEC_INITRAMFS] = KEXEC_INITRAMFS_CHECK,
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index b0e02cfe3ce1..8a432f646967 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -177,49 +177,49 @@ static inline bool selinux_policycap_netpeer(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_NETPEER];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_NETPEER]);
 }
 
 static inline bool selinux_policycap_openperm(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_OPENPERM];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_OPENPERM]);
 }
 
 static inline bool selinux_policycap_extsockclass(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_EXTSOCKCLASS];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_EXTSOCKCLASS]);
 }
 
 static inline bool selinux_policycap_alwaysnetwork(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_ALWAYSNETWORK];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_ALWAYSNETWORK]);
 }
 
 static inline bool selinux_policycap_cgroupseclabel(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_CGROUPSECLABEL];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_CGROUPSECLABEL]);
 }
 
 static inline bool selinux_policycap_nnp_nosuid_transition(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_NNP_NOSUID_TRANSITION];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_NNP_NOSUID_TRANSITION]);
 }
 
 static inline bool selinux_policycap_genfs_seclabel_symlinks(void)
 {
 	struct selinux_state *state = &selinux_state;
 
-	return state->policycap[POLICYDB_CAPABILITY_GENFS_SECLABEL_SYMLINKS];
+	return READ_ONCE(state->policycap[POLICYDB_CAPABILITY_GENFS_SECLABEL_SYMLINKS]);
 }
 
 int security_mls_enabled(struct selinux_state *state);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 1caf4e603309..c55b3063753a 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2103,7 +2103,8 @@ static void security_load_policycaps(struct selinux_state *state)
 	struct ebitmap_node *node;
 
 	for (i = 0; i < ARRAY_SIZE(state->policycap); i++)
-		state->policycap[i] = ebitmap_get_bit(&p->policycaps, i);
+		WRITE_ONCE(state->policycap[i],
+			ebitmap_get_bit(&p->policycaps, i));
 
 	for (i = 0; i < ARRAY_SIZE(selinux_policycap_names); i++)
 		pr_info("SELinux:  policy capability %s=%d\n",
diff --git a/sound/soc/amd/acp3x-rt5682-max9836.c b/sound/soc/amd/acp3x-rt5682-max9836.c
index 406526e79af3..1a4e8ca0f99c 100644
--- a/sound/soc/amd/acp3x-rt5682-max9836.c
+++ b/sound/soc/amd/acp3x-rt5682-max9836.c
@@ -472,12 +472,17 @@ static int acp3x_probe(struct platform_device *pdev)
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret) {
-		dev_err(&pdev->dev,
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
 				"devm_snd_soc_register_card(%s) failed: %d\n",
 				card->name, ret);
-		return ret;
+		else
+			dev_dbg(&pdev->dev,
+				"devm_snd_soc_register_card(%s) probe deferred: %d\n",
+				card->name, ret);
 	}
-	return 0;
+
+	return ret;
 }
 
 static const struct acpi_device_id acp3x_audio_acpi_match[] = {
diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
index 2c5c451fa19d..c475955c6eeb 100644
--- a/sound/soc/sof/intel/hda-codec.c
+++ b/sound/soc/sof/intel/hda-codec.c
@@ -151,7 +151,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 		if (!hdev->bus->audio_component) {
 			dev_dbg(sdev->dev,
 				"iDisp hw present but no driver\n");
-			return -ENOENT;
+			goto error;
 		}
 		hda_priv->need_display_power = true;
 	}
@@ -174,7 +174,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 		 * other return codes without modification
 		 */
 		if (ret == 0)
-			ret = -ENOENT;
+			goto error;
 	}
 
 	return ret;
diff --git a/tools/perf/pmu-events/arch/x86/amdzen1/cache.json b/tools/perf/pmu-events/arch/x86/amdzen1/cache.json
index 404d4c569c01..695ed3ffa3a6 100644
--- a/tools/perf/pmu-events/arch/x86/amdzen1/cache.json
+++ b/tools/perf/pmu-events/arch/x86/amdzen1/cache.json
@@ -249,6 +249,24 @@
     "BriefDescription": "Cycles with fill pending from L2. Total cycles spent with one or more fill requests in flight from L2.",
     "UMask": "0x1"
   },
+  {
+    "EventName": "l2_pf_hit_l2",
+    "EventCode": "0x70",
+    "BriefDescription": "L2 prefetch hit in L2.",
+    "UMask": "0xff"
+  },
+  {
+    "EventName": "l2_pf_miss_l2_hit_l3",
+    "EventCode": "0x71",
+    "BriefDescription": "L2 prefetcher hits in L3. Counts all L2 prefetches accepted by the L2 pipeline which miss the L2 cache and hit the L3.",
+    "UMask": "0xff"
+  },
+  {
+    "EventName": "l2_pf_miss_l2_l3",
+    "EventCode": "0x72",
+    "BriefDescription": "L2 prefetcher misses in L3. All L2 prefetches accepted by the L2 pipeline which miss the L2 and the L3 caches.",
+    "UMask": "0xff"
+  },
   {
     "EventName": "l3_request_g1.caching_l3_cache_accesses",
     "EventCode": "0x01",
diff --git a/tools/perf/util/print_binary.c b/tools/perf/util/print_binary.c
index 599a1543871d..13fdc51c61d9 100644
--- a/tools/perf/util/print_binary.c
+++ b/tools/perf/util/print_binary.c
@@ -50,7 +50,7 @@ int is_printable_array(char *p, unsigned int len)
 
 	len--;
 
-	for (i = 0; i < len; i++) {
+	for (i = 0; i < len && p[i]; i++) {
 		if (!isprint(p[i]) && !isspace(p[i]))
 			return 0;
 	}
diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_prog.c b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c
index 50525235380e..5489823c83fc 100644
--- a/tools/testing/selftests/bpf/progs/test_sysctl_prog.c
+++ b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c
@@ -19,11 +19,11 @@
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #endif
 
+const char tcp_mem_name[] = "net/ipv4/tcp_mem";
 static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx)
 {
-	char tcp_mem_name[] = "net/ipv4/tcp_mem";
 	unsigned char i;
-	char name[64];
+	char name[sizeof(tcp_mem_name)];
 	int ret;
 
 	memset(name, 0, sizeof(name));
diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c
index 18b6a773d5c7..638ffacc90aa 100644
--- a/tools/testing/selftests/powerpc/utils.c
+++ b/tools/testing/selftests/powerpc/utils.c
@@ -318,7 +318,9 @@ int using_hash_mmu(bool *using_hash)
 
 	rc = 0;
 	while (fgets(line, sizeof(line), f) != NULL) {
-		if (strcmp(line, "MMU		: Hash\n") == 0) {
+		if (!strcmp(line, "MMU		: Hash\n") ||
+		    !strcmp(line, "platform	: Cell\n") ||
+		    !strcmp(line, "platform	: PowerMac\n")) {
 			*using_hash = true;
 			goto out;
 		}
diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c
index 998319553523..7161cfc2e60b 100644
--- a/tools/testing/selftests/x86/fsgsbase.c
+++ b/tools/testing/selftests/x86/fsgsbase.c
@@ -443,6 +443,68 @@ static void test_unexpected_base(void)
 
 #define USER_REGS_OFFSET(r) offsetof(struct user_regs_struct, r)
 
+static void test_ptrace_write_gs_read_base(void)
+{
+	int status;
+	pid_t child = fork();
+
+	if (child < 0)
+		err(1, "fork");
+
+	if (child == 0) {
+		printf("[RUN]\tPTRACE_POKE GS, read GSBASE back\n");
+
+		printf("[RUN]\tARCH_SET_GS to 1\n");
+		if (syscall(SYS_arch_prctl, ARCH_SET_GS, 1) != 0)
+			err(1, "ARCH_SET_GS");
+
+		if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0)
+			err(1, "PTRACE_TRACEME");
+
+		raise(SIGTRAP);
+		_exit(0);
+	}
+
+	wait(&status);
+
+	if (WSTOPSIG(status) == SIGTRAP) {
+		unsigned long base;
+		unsigned long gs_offset = USER_REGS_OFFSET(gs);
+		unsigned long base_offset = USER_REGS_OFFSET(gs_base);
+
+		/* Read the initial base.  It should be 1. */
+		base = ptrace(PTRACE_PEEKUSER, child, base_offset, NULL);
+		if (base == 1) {
+			printf("[OK]\tGSBASE started at 1\n");
+		} else {
+			nerrs++;
+			printf("[FAIL]\tGSBASE started at 0x%lx\n", base);
+		}
+
+		printf("[RUN]\tSet GS = 0x7, read GSBASE\n");
+
+		/* Poke an LDT selector into GS. */
+		if (ptrace(PTRACE_POKEUSER, child, gs_offset, 0x7) != 0)
+			err(1, "PTRACE_POKEUSER");
+
+		/* And read the base. */
+		base = ptrace(PTRACE_PEEKUSER, child, base_offset, NULL);
+
+		if (base == 0 || base == 1) {
+			printf("[OK]\tGSBASE reads as 0x%lx with invalid GS\n", base);
+		} else {
+			nerrs++;
+			printf("[FAIL]\tGSBASE=0x%lx (should be 0 or 1)\n", base);
+		}
+	}
+
+	ptrace(PTRACE_CONT, child, NULL, NULL);
+
+	wait(&status);
+	if (!WIFEXITED(status))
+		printf("[WARN]\tChild didn't exit cleanly.\n");
+}
+
 static void test_ptrace_write_gsbase(void)
 {
 	int status;
@@ -517,6 +579,9 @@ static void test_ptrace_write_gsbase(void)
 
 END:
 	ptrace(PTRACE_CONT, child, NULL, NULL);
+	wait(&status);
+	if (!WIFEXITED(status))
+		printf("[WARN]\tChild didn't exit cleanly.\n");
 }
 
 int main()
@@ -526,6 +591,9 @@ int main()
 	shared_scratch = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
 			      MAP_ANONYMOUS | MAP_SHARED, -1, 0);
 
+	/* Do these tests before we have an LDT. */
+	test_ptrace_write_gs_read_base();
+
 	/* Probe FSGSBASE */
 	sethandler(SIGILL, sigill, 0);
 	if (sigsetjmp(jmpbuf, 1) == 0) {
