diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f0001eb33173..ac601c4b9f57 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2699,6 +2699,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 					sector if the number is odd);
 				i = IGNORE_DEVICE (don't bind to this
 					device);
+				j = NO_REPORT_LUNS (don't use report luns
+					command, uas only);
 				l = NOT_LOCKABLE (don't try to lock and
 					unlock ejectable media);
 				m = MAX_SECTORS_64 (don't transfer more
diff --git a/Makefile b/Makefile
index 5b500f93425b..98c276c53906 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 2
-SUBLEVEL = 80
+SUBLEVEL = 81
 EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2fb13f..ed3df443e02d 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -314,7 +314,7 @@ tracesys_next:
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 
 	LDREGX  %r20(%r19), %r19
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index e30442c539ce..9b604c05fec3 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -30,6 +30,7 @@
 #define PPC_FEATURE_PSERIES_PERFMON_COMPAT \
 					0x00000040
 
+/* Reserved - do not use		0x00000004 */
 #define PPC_FEATURE_TRUE_LE		0x00000002
 #define PPC_FEATURE_PPC_LE		0x00000001
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index fa1235b0503b..c021af8364a3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -159,7 +159,7 @@ static struct ibm_pa_feature {
 	{CPU_FTR_NOEXECUTE, 0, 0,	0, 6, 0},
 	{CPU_FTR_NODSISRALIGN, 0, 0,	1, 1, 1},
 	{0, MMU_FTR_CI_LARGE_PAGE, 0,	1, 2, 0},
-	{CPU_FTR_REAL_LE, PPC_FEATURE_TRUE_LE, 5, 0, 0},
+	{CPU_FTR_REAL_LE, 0, PPC_FEATURE_TRUE_LE, 5, 0, 0},
 };
 
 static void __init scan_features(unsigned long node, unsigned char *ftrs,
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 799ed0f1643d..dcd46cba4ec3 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -14,6 +14,7 @@
 
 #define is_hugepage_only_range(mm, addr, len)	0
 #define hugetlb_free_pgd_range			free_pgd_range
+#define hugepages_supported()			(MACHINE_HAS_HPAGE)
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48fa3915fd02..4e8225c25145 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,6 +3,7 @@
 
 #include <asm/page.h>
 
+#define hugepages_supported() cpu_has_pse
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 24215072d0e1..3a7f5f5a405d 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -61,4 +61,5 @@ static inline struct microcode_ops * __init init_amd_microcode(void)
 }
 #endif
 
+extern bool check_current_patch_level(u32 *rev, bool early);
 #endif /* _ASM_X86_MICROCODE_H */
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 1c66d30971ad..31fed191a41e 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -68,11 +68,10 @@ int copy_to_user(void __user *dst, const void *src, unsigned size)
 }
 
 static __always_inline __must_check
-int __copy_from_user(void *dst, const void __user *src, unsigned size)
+int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
 {
 	int ret = 0;
 
-	might_fault();
 	if (!__builtin_constant_p(size))
 		return copy_user_generic(dst, (__force void *)src, size);
 	switch (size) {
@@ -112,11 +111,17 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size)
 }
 
 static __always_inline __must_check
-int __copy_to_user(void __user *dst, const void *src, unsigned size)
+int __copy_from_user(void *dst, const void __user *src, unsigned size)
+{
+	might_fault();
+	return __copy_from_user_nocheck(dst, src, size);
+}
+
+static __always_inline __must_check
+int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
 {
 	int ret = 0;
 
-	might_fault();
 	if (!__builtin_constant_p(size))
 		return copy_user_generic((__force void *)dst, src, size);
 	switch (size) {
@@ -156,6 +161,13 @@ int __copy_to_user(void __user *dst, const void *src, unsigned size)
 }
 
 static __always_inline __must_check
+int __copy_to_user(void __user *dst, const void *src, unsigned size)
+{
+	might_fault();
+	return __copy_to_user_nocheck(dst, src, size);
+}
+
+static __always_inline __must_check
 int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 {
 	int ret = 0;
@@ -221,13 +233,13 @@ __must_check unsigned long __clear_user(void __user *mem, unsigned long len);
 static __must_check __always_inline int
 __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
 {
-	return copy_user_generic(dst, (__force const void *)src, size);
+	return __copy_from_user_nocheck(dst, src, size);
 }
 
 static __must_check __always_inline int
 __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
 {
-	return copy_user_generic((__force void *)dst, src, size);
+	return __copy_to_user_nocheck(dst, src, size);
 }
 
 extern long __copy_user_nocache(void *dst, const void __user *src,
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index f9b9eaa3bbe5..be2fa4d0e814 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -123,13 +123,62 @@ static int get_matching_microcode(int cpu, struct microcode_header_amd *mc_hdr,
 	return 1;
 }
 
+/*
+ * Those patch levels cannot be updated to newer ones and thus should be final.
+ */
+static u32 final_levels[] = {
+	0x01000098,
+	0x0100009f,
+	0x010000af,
+	0, /* T-101 terminator */
+};
+
+/*
+ * Check the current patch level on this CPU.
+ *
+ * @rev: Use it to return the patch level. It is set to 0 in the case of
+ * error.
+ *
+ * Returns:
+ *  - true: if update should stop
+ *  - false: otherwise
+ */
+bool check_current_patch_level(u32 *rev, bool early)
+{
+	u32 lvl, dummy, i;
+	bool ret = false;
+	u32 *levels;
+
+	rdmsr(MSR_AMD64_PATCH_LEVEL, lvl, dummy);
+
+#ifdef CONFIG_X86_32
+	if (early)
+		levels = (u32 *)__pa_nodebug(&final_levels);
+	else
+#endif
+		levels = final_levels;
+
+	for (i = 0; levels[i]; i++) {
+		if (lvl == levels[i]) {
+			lvl = 0;
+			ret = true;
+			break;
+		}
+	}
+
+	if (rev)
+		*rev = lvl;
+
+	return ret;
+}
+
 static int apply_microcode_amd(int cpu)
 {
-	u32 rev, dummy;
 	int cpu_num = raw_smp_processor_id();
 	struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
 	struct microcode_amd *mc_amd = uci->mc;
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
+	u32 dummy, rev;
 
 	/* We should bind the task to the CPU */
 	BUG_ON(cpu_num != cpu);
@@ -137,6 +186,9 @@ static int apply_microcode_amd(int cpu)
 	if (mc_amd == NULL)
 		return 0;
 
+	if (check_current_patch_level(&rev, false))
+		return -1;
+
 	wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
 	/* get patch id after patching */
 	rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index da1a1261aac1..a7fd5b336ac7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5754,8 +5754,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 	kvm_x86_ops->prepare_guest_switch(vcpu);
 	if (vcpu->fpu_active)
 		kvm_load_guest_fpu(vcpu);
-	kvm_load_guest_xcr0(vcpu);
-
 	vcpu->mode = IN_GUEST_MODE;
 
 	/* We should set ->mode before check ->requests,
@@ -5776,6 +5774,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		goto out;
 	}
 
+	kvm_load_guest_xcr0(vcpu);
+
 	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 
 	kvm_guest_enter();
@@ -5805,6 +5805,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 
 	vcpu->mode = OUTSIDE_GUEST_MODE;
 	smp_wmb();
+
+	kvm_put_guest_xcr0(vcpu);
+
 	local_irq_enable();
 
 	++vcpu->stat.exits;
@@ -6378,7 +6381,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 	 * and assume host would use all available bits.
 	 * Guest xcr0 would be loaded later.
 	 */
-	kvm_put_guest_xcr0(vcpu);
 	vcpu->guest_fpu_loaded = 1;
 	unlazy_fpu(current);
 	fpu_restore_checking(&vcpu->arch.guest_fpu);
@@ -6387,8 +6389,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 
 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
 {
-	kvm_put_guest_xcr0(vcpu);
-
 	if (!vcpu->guest_fpu_loaded)
 		return;
 
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 7fd8ecf71337..8271185d4ad9 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -64,8 +64,9 @@ static int hash_walk_new_entry(struct crypto_hash_walk *walk)
 	struct scatterlist *sg;
 
 	sg = walk->sg;
-	walk->pg = sg_page(sg);
 	walk->offset = sg->offset;
+	walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
+	walk->offset = offset_in_page(walk->offset);
 	walk->entrylen = sg->length;
 
 	if (walk->entrylen > walk->total)
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 1e3356107af2..943cbceca426 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -1103,6 +1103,21 @@ static int crypto_rfc4543_setauthsize(struct crypto_aead *parent,
 	return crypto_aead_setauthsize(ctx->child, authsize);
 }
 
+static void crypto_rfc4543_done(struct crypto_async_request *areq, int err)
+{
+	struct aead_request *req = areq->data;
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	struct crypto_rfc4543_req_ctx *rctx = crypto_rfc4543_reqctx(req);
+
+	if (!err) {
+		scatterwalk_map_and_copy(rctx->auth_tag, req->dst,
+					 req->cryptlen,
+					 crypto_aead_authsize(aead), 1);
+	}
+
+	aead_request_complete(req, err);
+}
+
 static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req,
 						 int enc)
 {
@@ -1159,8 +1174,11 @@ static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req,
 	scatterwalk_crypto_chain(assoc, payload, 0, 2);
 
 	aead_request_set_tfm(subreq, ctx->child);
-	aead_request_set_callback(subreq, req->base.flags, req->base.complete,
-				  req->base.data);
+	aead_request_set_callback(subreq, req->base.flags, crypto_rfc4543_done,
+				  req);
+	if (!enc)
+		aead_request_set_callback(subreq, req->base.flags,
+					  req->base.complete, req->base.data);
 	aead_request_set_crypt(subreq, cipher, cipher, enc ? 0 : authsize, iv);
 	aead_request_set_assoc(subreq, assoc, assoclen);
 
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 5d797751e205..7e13b71aa10d 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -266,6 +266,9 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 				obj_desc->method.mutex->mutex.
 				    original_sync_level =
 				    obj_desc->method.mutex->mutex.sync_level;
+
+				obj_desc->method.mutex->mutex.thread_id =
+				    acpi_os_get_thread_id();
 			}
 		}
 
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 1adb71733d05..fbfde7153f78 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -452,6 +452,7 @@ void ahci_save_initial_config(struct device *dev,
 		dev_info(dev, "forcing port_map 0x%x -> 0x%x\n",
 			 port_map, force_port_map);
 		port_map = force_port_map;
+		hpriv->saved_port_map = port_map;
 	}
 
 	if (mask_port_map) {
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 636a8dd09ea0..e8e11ff97ece 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2679,7 +2679,7 @@ static int wait_for_msg_done(struct smi_info *smi_info)
 		    smi_result == SI_SM_CALL_WITH_TICK_DELAY) {
 			schedule_timeout_uninterruptible(1);
 			smi_result = smi_info->handlers->event(
-				smi_info->si_sm, 100);
+				smi_info->si_sm, jiffies_to_usecs(1));
 		} else if (smi_result == SI_SM_CALL_WITHOUT_DELAY) {
 			smi_result = smi_info->handlers->event(
 				smi_info->si_sm, 0);
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 4c18b3c78f03..03e831e159e8 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1921,7 +1921,7 @@ static int i7core_mce_check_error(struct notifier_block *nb, unsigned long val,
 
 	i7_dev = get_i7core_dev(mce->socketid);
 	if (!i7_dev)
-		return NOTIFY_BAD;
+		return NOTIFY_DONE;
 
 	mci = i7_dev->mci;
 	pvt = mci->pvt_info;
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index f8f790c0d252..7bcfd9d64672 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1596,7 +1596,7 @@ static int sbridge_mce_check_error(struct notifier_block *nb, unsigned long val,
 
 	mci = get_mci_for_node_id(mce->socketid);
 	if (!mci)
-		return NOTIFY_BAD;
+		return NOTIFY_DONE;
 	pvt = mci->pvt_info;
 
 	/*
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 452bc512e6a7..e216c21110e4 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -538,6 +538,35 @@ int i915_resume(struct drm_device *dev)
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
+	/*
+	 * Note that we need to set the power state explicitly, since we
+	 * powered off the device during freeze and the PCI core won't power
+	 * it back up for us during thaw. Powering off the device during
+	 * freeze is not a hard requirement though, and during the
+	 * suspend/resume phases the PCI core makes sure we get here with the
+	 * device powered on. So in case we change our freeze logic and keep
+	 * the device powered we can also remove the following set power state
+	 * call.
+	 */
+	ret = pci_set_power_state(dev->pdev, PCI_D0);
+	if (ret) {
+		DRM_ERROR("failed to set PCI D0 power state (%d)\n", ret);
+		return ret;
+	}
+
+	/*
+	 * Note that pci_enable_device() first enables any parent bridge
+	 * device and only then sets the power state for this device. The
+	 * bridge enabling is a nop though, since bridge devices are resumed
+	 * first. The order of enabling power and enabling the device is
+	 * imposed by the PCI core as described above, so here we preserve the
+	 * same order for the freeze/thaw phases.
+	 *
+	 * TODO: eventually we should remove pci_disable_device() /
+	 * pci_enable_enable_device() from suspend/resume. Due to how they
+	 * depend on the device enable refcount we can't anyway depend on them
+	 * disabling/enabling the device.
+	 */
 	if (pci_enable_device(dev->pdev))
 		return -EIO;
 
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index a1a7d071eb17..cd8b34146146 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -90,6 +90,10 @@ static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
 	    && (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2)))
 		adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + 2;
 
+	/* vertical FP must be at least 1 */
+	if (mode->crtc_vsync_start == mode->crtc_vdisplay)
+		adjusted_mode->crtc_vsync_start++;
+
 	/* get the native mode for LVDS */
 	if (radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT))
 		radeon_panel_mode_fixup(encoder, adjusted_mode);
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index b8a0b4a7811b..06c116bdcca0 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -48,6 +48,7 @@
 
 #include <asm/uaccess.h>
 
+#include <rdma/ib.h>
 #include <rdma/ib_cm.h>
 #include <rdma/ib_user_cm.h>
 #include <rdma/ib_marshall.h>
@@ -1116,6 +1117,9 @@ static ssize_t ib_ucm_write(struct file *filp, const char __user *buf,
 	struct ib_ucm_cmd_hdr hdr;
 	ssize_t result;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (len < sizeof(hdr))
 		return -EINVAL;
 
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index b37b0c02a7b9..91e82b7dadfa 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -47,6 +47,7 @@
 #include <rdma/ib_marshall.h>
 #include <rdma/rdma_cm.h>
 #include <rdma/rdma_cm_ib.h>
+#include <rdma/ib.h>
 
 MODULE_AUTHOR("Sean Hefty");
 MODULE_DESCRIPTION("RDMA Userspace Connection Manager Access");
@@ -1268,6 +1269,9 @@ static ssize_t ucma_write(struct file *filp, const char __user *buf,
 	struct rdma_ucm_cmd_hdr hdr;
 	ssize_t ret;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (len < sizeof(hdr))
 		return -EINVAL;
 
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index f07c6e317771..9cdcb5038622 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -48,6 +48,8 @@
 
 #include <asm/uaccess.h>
 
+#include <rdma/ib.h>
+
 #include "uverbs.h"
 
 MODULE_AUTHOR("Roland Dreier");
@@ -580,6 +582,9 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 	struct ib_uverbs_file *file = filp->private_data;
 	struct ib_uverbs_cmd_hdr hdr;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(filp)))
+		return -EACCES;
+
 	if (count < sizeof hdr)
 		return -EINVAL;
 
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 736d9edbdbe7..eed46ddd2331 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -44,6 +44,8 @@
 #include <linux/cpu.h>
 #include <asm/pgtable.h>
 
+#include <rdma/ib.h>
+
 #include "ipath_kernel.h"
 #include "ipath_common.h"
 #include "ipath_user_sdma.h"
@@ -2239,6 +2241,9 @@ static ssize_t ipath_write(struct file *fp, const char __user *data,
 	ssize_t ret = 0;
 	void *dest;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))
+		return -EACCES;
+
 	if (count < sizeof(cmd.type)) {
 		ret = -EINVAL;
 		goto bail;
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index a7403248d83d..81c5bdb194dc 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -45,6 +45,8 @@
 #include <linux/delay.h>
 #include <linux/export.h>
 
+#include <rdma/ib.h>
+
 #include "qib.h"
 #include "qib_common.h"
 #include "qib_user_sdma.h"
@@ -1971,6 +1973,9 @@ static ssize_t qib_write(struct file *fp, const char __user *data,
 	ssize_t ret = 0;
 	void *dest;
 
+	if (WARN_ON_ONCE(!ib_safe_file_access(fp)))
+		return -EACCES;
+
 	if (count < sizeof(cmd.type)) {
 		ret = -EINVAL;
 		goto bail;
diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c
index b3cfb9c71e66..61f5b374a473 100644
--- a/drivers/input/misc/pmic8xxx-pwrkey.c
+++ b/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -98,7 +98,9 @@ static int __devinit pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	if (pdata->kpd_trigger_delay_us > 62500) {
+	/* Valid range of pwr key trigger delay is 1/64 sec to 2 seconds. */
+	if (pdata->kpd_trigger_delay_us > USEC_PER_SEC * 2 ||
+	    pdata->kpd_trigger_delay_us < USEC_PER_SEC / 64) {
 		dev_err(&pdev->dev, "invalid power key trigger delay\n");
 		return -EINVAL;
 	}
@@ -120,8 +122,8 @@ static int __devinit pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 	pwr->phys = "pmic8xxx_pwrkey/input0";
 	pwr->dev.parent = &pdev->dev;
 
-	delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC;
-	delay = 1 + ilog2(delay);
+	delay = (pdata->kpd_trigger_delay_us << 6) / USEC_PER_SEC;
+	delay = ilog2(delay);
 
 	err = pm8xxx_readb(pdev->dev.parent, PON_CNTL_1, &pon_cntl);
 	if (err < 0) {
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 8ea6afe2e992..929215a2dcfa 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -866,6 +866,14 @@ static int gtco_probe(struct usb_interface *usbinterface,
 		goto err_free_buf;
 	}
 
+	/* Sanity check that a device has an endpoint */
+	if (usbinterface->altsetting[0].desc.bNumEndpoints < 1) {
+		dev_err(&usbinterface->dev,
+			"Invalid number of endpoints\n");
+		error = -EINVAL;
+		goto err_free_urb;
+	}
+
 	/*
 	 * The endpoint is always altsetting 0, we know this since we know
 	 * this device only has one interrupt endpoint
@@ -887,7 +895,7 @@ static int gtco_probe(struct usb_interface *usbinterface,
 	 * HID report descriptor
 	 */
 	if (usb_get_extra_descriptor(usbinterface->cur_altsetting,
-				     HID_DEVICE_TYPE, &hid_desc) != 0){
+				     HID_DEVICE_TYPE, &hid_desc) != 0) {
 		err("Can't retrieve exta USB descriptor to get hid report descriptor length");
 		error = -EIO;
 		goto err_free_urb;
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index 1feae5928a4b..12313c8cbe0c 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -1428,7 +1428,7 @@ static int __devinit atl2_probe(struct pci_dev *pdev,
 
 	err = -EIO;
 
-	netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_RX;
+	netdev->hw_features = NETIF_F_HW_VLAN_RX;
 	netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
 
 	/* Init PHY as early as possible due to power saving issue  */
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 76be3bae3ff8..8312f9547009 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -70,6 +70,14 @@ static void companion_common(struct pci_dev *pdev, struct usb_hcd *hcd,
 				PCI_SLOT(companion->devfn) != slot)
 			continue;
 
+		/*
+		 * Companion device should be either UHCI,OHCI or EHCI host
+		 * controller, otherwise skip.
+		 */
+		if (companion->class != CL_UHCI && companion->class != CL_OHCI &&
+				companion->class != CL_EHCI)
+			continue;
+
 		companion_hcd = pci_get_drvdata(companion);
 		if (!companion_hcd)
 			continue;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index ab023b168732..e3f70d3fb44c 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1789,6 +1789,11 @@ no_bw:
 	kfree(xhci->port_array);
 	kfree(xhci->rh_bw);
 
+	xhci->usb2_ports = NULL;
+	xhci->usb3_ports = NULL;
+	xhci->port_array = NULL;
+	xhci->rh_bw = NULL;
+
 	xhci->page_size = 0;
 	xhci->page_shift = 0;
 	xhci->bus_state[0].bus_suspended = 0;
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 244e1b12259d..50af559183eb 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -40,6 +40,7 @@
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI		0xa12f
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI	0x9d2f
 #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI		0x0aa8
+#define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI		0x1aa8
 
 static const char hcd_name[] = "xhci_hcd";
 
@@ -134,7 +135,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
-		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI)) {
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI)) {
 		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 645687c08baf..e941e2d33265 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -114,6 +114,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
 	{ USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
 	{ USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
+	{ USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */
 	{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
 	{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
 	{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
@@ -123,6 +124,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
 	{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
 	{ USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
+	{ USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
 	{ USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
 	{ USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
 	{ USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
@@ -146,6 +148,8 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */
 	{ USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */
 	{ USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */
+	{ USB_DEVICE(0x12B8, 0xEC60) }, /* Link G4 ECU */
+	{ USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */
 	{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
 	{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
 	{ USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index d582af4a1968..d2817421fc55 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -453,7 +453,7 @@ static void adjust_quirks(struct us_data *us)
 			US_FL_CAPACITY_OK | US_FL_IGNORE_RESIDUE |
 			US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT |
 			US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16 |
-			US_FL_INITIAL_READ10);
+			US_FL_INITIAL_READ10 | US_FL_NO_REPORT_LUNS);
 
 	p = quirks;
 	while (*p) {
@@ -497,6 +497,9 @@ static void adjust_quirks(struct us_data *us)
 		case 'i':
 			f |= US_FL_IGNORE_DEVICE;
 			break;
+		case 'j':
+			f |= US_FL_NO_REPORT_LUNS;
+			break;
 		case 'l':
 			f |= US_FL_NOT_LOCKABLE;
 			break;
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 0aa424a02344..ebab116b0779 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -979,6 +979,11 @@ static int __init init_hugetlbfs_fs(void)
 	int error;
 	struct vfsmount *vfsmount;
 
+	if (!hugepages_supported()) {
+		pr_info("hugetlbfs: disabling because there are no supported hugepage sizes\n");
+		return -ENOTSUPP;
+	}
+
 	error = bdi_init(&hugetlbfs_backing_dev_info);
 	if (error)
 		return error;
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 17809499c752..e52a1ac168ef 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -203,6 +203,8 @@ int get_rock_ridge_filename(struct iso_directory_record *de,
 	int retnamlen = 0;
 	int truncate = 0;
 	int ret = 0;
+	char *p;
+	int len;
 
 	if (!ISOFS_SB(inode->i_sb)->s_rock)
 		return 0;
@@ -267,12 +269,17 @@ repeat:
 					rr->u.NM.flags);
 				break;
 			}
-			if ((strlen(retname) + rr->len - 5) >= 254) {
+			len = rr->len - 5;
+			if (retnamlen + len >= 254) {
 				truncate = 1;
 				break;
 			}
-			strncat(retname, rr->u.NM.name, rr->len - 5);
-			retnamlen += rr->len - 5;
+			p = memchr(rr->u.NM.name, '\0', len);
+			if (unlikely(p))
+				len = p - rr->u.NM.name;
+			memcpy(retname + retnamlen, rr->u.NM.name, len);
+			retnamlen += len;
+			retname[retnamlen] = '\0';
 			break;
 		case SIG('R', 'E'):
 			kfree(rs.buffer);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1ace83d004be..402976ab746a 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -905,7 +905,8 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 
 	mm = mm_for_maps(task);
 	ret = PTR_ERR(mm);
-	if (!mm || IS_ERR(mm))
+	/* Ensure the process spawned far enough to have an environment. */
+	if (!mm || IS_ERR(mm) || !mm->env_end)
 		goto out_free;
 
 	ret = 0;
diff --git a/include/linux/hash.h b/include/linux/hash.h
index b80506bdd733..44a3b95f16c1 100644
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -31,10 +31,29 @@
 #error Wordsize not 32 or 64
 #endif
 
+/*
+ * The above primes are actively bad for hashing, since they are
+ * too sparse. The 32-bit one is mostly ok, the 64-bit one causes
+ * real problems. Besides, the "prime" part is pointless for the
+ * multiplicative hash.
+ *
+ * Although a random odd number will do, it turns out that the golden
+ * ratio phi = (sqrt(5)-1)/2, or its negative, has particularly nice
+ * properties.
+ *
+ * These are the negative, (1 - phi) = (phi^2) = (3 - sqrt(5))/2.
+ * (See Knuth vol 3, section 6.4, exercise 9.)
+ */
+#define GOLDEN_RATIO_32 0x61C88647
+#define GOLDEN_RATIO_64 0x61C8864680B583EBull
+
 static inline u64 hash_64(u64 val, unsigned int bits)
 {
 	u64 hash = val;
 
+#if BITS_PER_LONG == 64
+	hash = hash * GOLDEN_RATIO_64;
+#else
 	/*  Sigh, gcc can't optimise this alone like it does for 32 bits. */
 	u64 n = hash;
 	n <<= 18;
@@ -49,6 +68,7 @@ static inline u64 hash_64(u64 val, unsigned int bits)
 	hash += n;
 	n <<= 2;
 	hash += n;
+#endif
 
 	/* High bits are more random, so use them. */
 	return hash >> (64 - bits);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 4bc9445222f2..533471d8b43b 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -344,6 +344,15 @@ static inline pgoff_t basepage_index(struct page *page)
 	return __basepage_index(page);
 }
 
+#ifndef hugepages_supported
+/*
+ * Some platform decide whether they support huge pages at boot
+ * time. Some of them, such as powerpc, set HPAGE_SHIFT to 0
+ * when there is no such support
+ */
+#define hugepages_supported() (HPAGE_SHIFT != 0)
+#endif
+
 #else
 struct hstate {};
 #define alloc_huge_page_node(h, nid) NULL
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 700c94821db1..4b04097c748c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -293,7 +293,6 @@ struct header_ops {
 	void	(*cache_update)(struct hh_cache *hh,
 				const struct net_device *dev,
 				const unsigned char *haddr);
-	bool	(*validate)(const char *ll_header, unsigned int len);
 };
 
 /* These flag bits are private to the generic network queueing
@@ -1120,7 +1119,7 @@ struct net_device {
 
 	unsigned int		mtu;	/* interface MTU value		*/
 	unsigned short		type;	/* interface hardware type	*/
-	unsigned short		hard_header_len; /* maximum hardware hdr length	*/
+	unsigned short		hard_header_len;	/* hardware hdr length	*/
 
 	/* extra head- and tailroom the hardware may need, but not in all cases
 	 * can this be guaranteed, especially tailroom. Some cases also use
@@ -1729,24 +1728,6 @@ static inline int dev_rebuild_header(struct sk_buff *skb)
 	return dev->header_ops->rebuild(skb);
 }
 
-/* ll_header must have at least hard_header_len allocated */
-static inline bool dev_validate_header(const struct net_device *dev,
-				       char *ll_header, int len)
-{
-	if (likely(len >= dev->hard_header_len))
-		return true;
-
-	if (capable(CAP_SYS_RAWIO)) {
-		memset(ll_header + len, 0, dev->hard_header_len - len);
-		return true;
-	}
-
-	if (dev->header_ops && dev->header_ops->validate)
-		return dev->header_ops->validate(ll_header, len);
-
-	return false;
-}
-
 typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len);
 extern int		register_gifconf(unsigned int family, gifconf_func_t * gifconf);
 static inline int unregister_gifconf(unsigned int family)
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 88413e9d80b5..a3d6fac653cd 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -67,6 +67,8 @@
 		/* Initial READ(10) (and others) must be retried */ \
 	US_FLAG(BROKEN_FUA,	0x01000000)			\
 		/* Cannot handle FUA in WRITE or READ CDBs */	\
+	US_FLAG(NO_REPORT_LUNS,	0x10000000)			\
+		/* Cannot handle REPORT_LUNS */			\
 
 #define US_FLAG(name, value)	US_FL_##name = value ,
 enum { US_DO_ALL_FLAGS };
diff --git a/include/rdma/ib.h b/include/rdma/ib.h
new file mode 100644
index 000000000000..fcb21882d096
--- /dev/null
+++ b/include/rdma/ib.h
@@ -0,0 +1,21 @@
+#if !defined(_RDMA_IB_H)
+#define _RDMA_IB_H
+
+#include <linux/sched.h>
+
+/*
+ * The IB interfaces that use write() as bi-directional ioctl() are
+ * fundamentally unsafe, since there are lots of ways to trigger "write()"
+ * calls from various contexts with elevated privileges. That includes the
+ * traditional suid executable error message writes, but also various kernel
+ * interfaces that can write to file descriptors.
+ *
+ * This function provides protection for the legacy API by restricting the
+ * calling context.
+ */
+static inline bool ib_safe_file_access(struct file *filp)
+{
+	return filp->f_cred == current_cred() && segment_eq(get_fs(), USER_DS);
+}
+
+#endif /* _RDMA_IB_H */
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 79166c2b8f8f..2fde51669cd9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1635,14 +1635,14 @@ int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
 		 * page fault if needed.
 		 */
 		return 0;
-	if (vma->vm_ops)
+	if (vma->vm_ops || (vm_flags & VM_NO_THP))
 		/* khugepaged not yet working on file or special mappings */
 		return 0;
 	/*
 	 * If is_pfn_mapping() is true is_learn_pfn_mapping() must be
 	 * true too, verify it here.
 	 */
-	VM_BUG_ON(is_linear_pfn_mapping(vma) || vm_flags & VM_NO_THP);
+	VM_BUG_ON(is_linear_pfn_mapping(vma));
 	hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK;
 	hend = vma->vm_end & HPAGE_PMD_MASK;
 	if (hstart < hend)
@@ -1817,6 +1817,24 @@ static void __collapse_huge_page_copy(pte_t *pte, struct page *page,
 	}
 }
 
+static bool hugepage_vma_check(struct vm_area_struct *vma)
+{
+	if ((!(vma->vm_flags & VM_HUGEPAGE) && !khugepaged_always()) ||
+	    (vma->vm_flags & VM_NOHUGEPAGE))
+		return false;
+
+	if (!vma->anon_vma || vma->vm_ops)
+		return false;
+	if (is_vma_temporary_stack(vma))
+		return false;
+	/*
+	 * If is_pfn_mapping() is true is_learn_pfn_mapping() must be
+	 * true too, verify it here.
+	 */
+	VM_BUG_ON(is_linear_pfn_mapping(vma));
+	return !(vma->vm_flags & VM_NO_THP);
+}
+
 static void collapse_huge_page(struct mm_struct *mm,
 			       unsigned long address,
 			       struct page **hpage,
@@ -1889,21 +1907,8 @@ static void collapse_huge_page(struct mm_struct *mm,
 	hend = vma->vm_end & HPAGE_PMD_MASK;
 	if (address < hstart || address + HPAGE_PMD_SIZE > hend)
 		goto out;
-
-	if ((!(vma->vm_flags & VM_HUGEPAGE) && !khugepaged_always()) ||
-	    (vma->vm_flags & VM_NOHUGEPAGE))
+	if (!hugepage_vma_check(vma))
 		goto out;
-
-	if (!vma->anon_vma || vma->vm_ops)
-		goto out;
-	if (is_vma_temporary_stack(vma))
-		goto out;
-	/*
-	 * If is_pfn_mapping() is true is_learn_pfn_mapping() must be
-	 * true too, verify it here.
-	 */
-	VM_BUG_ON(is_linear_pfn_mapping(vma) || vma->vm_flags & VM_NO_THP);
-
 	pgd = pgd_offset(mm, address);
 	if (!pgd_present(*pgd))
 		goto out;
@@ -2133,25 +2138,11 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
 			progress++;
 			break;
 		}
-
-		if ((!(vma->vm_flags & VM_HUGEPAGE) &&
-		     !khugepaged_always()) ||
-		    (vma->vm_flags & VM_NOHUGEPAGE)) {
-		skip:
+		if (!hugepage_vma_check(vma)) {
+skip:
 			progress++;
 			continue;
 		}
-		if (!vma->anon_vma || vma->vm_ops)
-			goto skip;
-		if (is_vma_temporary_stack(vma))
-			goto skip;
-		/*
-		 * If is_pfn_mapping() is true is_learn_pfn_mapping()
-		 * must be true too, verify it here.
-		 */
-		VM_BUG_ON(is_linear_pfn_mapping(vma) ||
-			  vma->vm_flags & VM_NO_THP);
-
 		hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK;
 		hend = vma->vm_end & HPAGE_PMD_MASK;
 		if (hstart >= hend)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 9256590bdd0e..c52095ce40b4 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1889,11 +1889,7 @@ module_exit(hugetlb_exit);
 
 static int __init hugetlb_init(void)
 {
-	/* Some platform decide whether they support huge pages at boot
-	 * time. On these, such as powerpc, HPAGE_SHIFT is set to 0 when
-	 * there is no such support
-	 */
-	if (HPAGE_SHIFT == 0)
+	if (!hugepages_supported())
 		return 0;
 
 	if (!size_to_hstate(default_hstate_size)) {
@@ -2010,6 +2006,9 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 	unsigned long tmp;
 	int ret;
 
+	if (!hugepages_supported())
+		return -ENOTSUPP;
+
 	tmp = h->max_huge_pages;
 
 	if (write && h->order >= MAX_ORDER)
@@ -2075,6 +2074,9 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	unsigned long tmp;
 	int ret;
 
+	if (!hugepages_supported())
+		return -ENOTSUPP;
+
 	tmp = h->nr_overcommit_huge_pages;
 
 	if (write && h->order >= MAX_ORDER)
@@ -2100,6 +2102,8 @@ out:
 void hugetlb_report_meminfo(struct seq_file *m)
 {
 	struct hstate *h = &default_hstate;
+	if (!hugepages_supported())
+		return;
 	seq_printf(m,
 			"HugePages_Total:   %5lu\n"
 			"HugePages_Free:    %5lu\n"
@@ -2116,6 +2120,8 @@ void hugetlb_report_meminfo(struct seq_file *m)
 int hugetlb_report_node_meminfo(int nid, char *buf)
 {
 	struct hstate *h = &default_hstate;
+	if (!hugepages_supported())
+		return 0;
 	return sprintf(buf,
 		"Node %d HugePages_Total: %5u\n"
 		"Node %d HugePages_Free:  %5u\n"
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index a0c9956b5b23..cf0c47a26530 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -232,24 +232,9 @@ int ax25_rebuild_header(struct sk_buff *skb)
 
 #endif
 
-static bool ax25_validate_header(const char *header, unsigned int len)
-{
-	ax25_digi digi;
-
-	if (!len)
-		return false;
-
-	if (header[0])
-		return true;
-
-	return ax25_addr_parse(header + 1, len - 1, NULL, NULL, &digi, NULL,
-			       NULL);
-}
-
 const struct header_ops ax25_header_ops = {
 	.create = ax25_hard_header,
 	.rebuild = ax25_rebuild_header,
-	.validate = ax25_validate_header,
 };
 
 EXPORT_SYMBOL(ax25_hard_header);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index da587ad189f8..cc82ec55283b 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -98,6 +98,15 @@ static void _update_route(struct bat_priv *bat_priv,
 		neigh_node = NULL;
 
 	spin_lock_bh(&orig_node->neigh_list_lock);
+	/* curr_router used earlier may not be the current orig_node->router
+	 * anymore because it was dereferenced outside of the neigh_list_lock
+	 * protected region. After the new best neighbor has replace the current
+	 * best neighbor the reference counter needs to decrease. Consequently,
+	 * the code needs to ensure the curr_router variable contains a pointer
+	 * to the replaced best neighbor.
+	 */
+	curr_router = rcu_dereference_protected(orig_node->router, true);
+
 	rcu_assign_pointer(orig_node->router, neigh_node);
 	spin_unlock_bh(&orig_node->neigh_list_lock);
 
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 8a684eb738ad..20570dd6d6b7 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -375,6 +375,9 @@ void purge_outstanding_packets(struct bat_priv *bat_priv,
 
 		if (pending) {
 			hlist_del(&forw_packet->list);
+			if (!forw_packet->own)
+				atomic_inc(&bat_priv->bcast_queue_left);
+
 			forw_packet_free(forw_packet);
 		}
 	}
@@ -404,6 +407,9 @@ void purge_outstanding_packets(struct bat_priv *bat_priv,
 
 		if (pending) {
 			hlist_del(&forw_packet->list);
+			if (!forw_packet->own)
+				atomic_inc(&bat_priv->batman_queue_left);
+
 			forw_packet_free(forw_packet);
 		}
 	}
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index f9cc95728989..a8f4627a426e 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -686,10 +686,16 @@ void interface_rx(struct net_device *soft_iface,
 	skb_pull_rcsum(skb, hdr_size);
 	skb_reset_mac_header(skb);
 
+	if (unlikely(!pskb_may_pull(skb, ETH_HLEN)))
+		goto dropped;
+
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 
 	switch (ntohs(ethhdr->h_proto)) {
 	case ETH_P_8021Q:
+		if (!pskb_may_pull(skb, VLAN_ETH_HLEN))
+			goto dropped;
+
 		vhdr = (struct vlan_ethhdr *)skb->data;
 		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
 
@@ -726,8 +732,6 @@ void interface_rx(struct net_device *soft_iface,
 	}
 
 	/* skb->dev & skb->pkt_type are set here */
-	if (unlikely(!pskb_may_pull(skb, ETH_HLEN)))
-		goto dropped;
 	skb->protocol = eth_type_trans(skb, soft_iface);
 
 	/* should not be necessary anymore as we use skb_pull_rcsum()
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e77373a44847..72a7ed82659b 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -920,14 +920,16 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 		NLA_PUT_STRING(skb, IFLA_IFALIAS, dev->ifalias);
 
 	if (1) {
-		struct rtnl_link_ifmap map = {
-			.mem_start   = dev->mem_start,
-			.mem_end     = dev->mem_end,
-			.base_addr   = dev->base_addr,
-			.irq         = dev->irq,
-			.dma         = dev->dma,
-			.port        = dev->if_port,
-		};
+		struct rtnl_link_ifmap map;
+
+		memset(&map, 0, sizeof(map));
+		map.mem_start   = dev->mem_start;
+		map.mem_end     = dev->mem_end;
+		map.base_addr   = dev->base_addr;
+		map.irq         = dev->irq;
+		map.dma         = dev->dma;
+		map.port        = dev->if_port;
+
 		NLA_PUT(skb, IFLA_MAP, sizeof(map), &map);
 	}
 
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index f432d7b6d93a..7752b2ffbc43 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -627,6 +627,7 @@ static void llc_cmsg_rcv(struct msghdr *msg, struct sk_buff *skb)
 	if (llc->cmsg_flags & LLC_CMSG_PKTINFO) {
 		struct llc_pktinfo info;
 
+		memset(&info, 0, sizeof(info));
 		info.lpi_ifindex = llc_sk(skb->sk)->dev->ifindex;
 		llc_pdu_decode_dsap(skb, &info.lpi_sap);
 		llc_pdu_decode_da(skb, info.lpi_mac);
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 7489bd301da5..c855673ceb23 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1493,6 +1493,7 @@ err_proto:
 
 static int nf_conntrack_init_net(struct net *net)
 {
+	static atomic64_t unique_id;
 	int ret;
 
 	atomic_set(&net->ct.count, 0);
@@ -1504,7 +1505,8 @@ static int nf_conntrack_init_net(struct net *net)
 		goto err_stat;
 	}
 
-	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
+	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%llu",
+				(u64)atomic64_inc_return(&unique_id));
 	if (!net->ct.slabname) {
 		ret = -ENOMEM;
 		goto err_slabname;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e1f73b65af15..446d22439492 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7496,7 +7496,7 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
 	struct cfg80211_registered_device *rdev;
 	struct wireless_dev *wdev;
 
-	if (state != NETLINK_URELEASE)
+	if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
 		return NOTIFY_DONE;
 
 	rcu_read_lock();
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index 36384a1fa9f2..887749c8054d 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -271,6 +271,7 @@ int x25_negotiate_facilities(struct sk_buff *skb, struct sock *sk,
 
 	memset(&theirs, 0, sizeof(theirs));
 	memcpy(new, ours, sizeof(*new));
+	memset(dte, 0, sizeof(*dte));
 
 	len = x25_parse_facilities(skb, &theirs, dte, &x25->vc_facil_mask);
 	if (len < 0)
