path: root/1124_linux-4.9.125.patch

diff --git a/Makefile b/Makefile
index 53d57acfc17e..aef09ca7a924 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 124
+SUBLEVEL = 125
 EXTRAVERSION =
 NAME = Roaring Lionus
 
diff --git a/arch/arc/include/asm/delay.h b/arch/arc/include/asm/delay.h
index d5da2115d78a..03d6bb0f4e13 100644
--- a/arch/arc/include/asm/delay.h
+++ b/arch/arc/include/asm/delay.h
@@ -17,8 +17,11 @@
 #ifndef __ASM_ARC_UDELAY_H
 #define __ASM_ARC_UDELAY_H
 
+#include <asm-generic/types.h>
 #include <asm/param.h>		/* HZ */
 
+extern unsigned long loops_per_jiffy;
+
 static inline void __delay(unsigned long loops)
 {
 	__asm__ __volatile__(
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index bbdfeb31dee6..fefe357c3d31 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -840,7 +840,7 @@ void flush_cache_mm(struct mm_struct *mm)
 void flush_cache_page(struct vm_area_struct *vma, unsigned long u_vaddr,
 		      unsigned long pfn)
 {
-	unsigned int paddr = pfn << PAGE_SHIFT;
+	phys_addr_t paddr = pfn << PAGE_SHIFT;
 
 	u_vaddr &= PAGE_MASK;
 
@@ -860,8 +860,9 @@ void flush_anon_page(struct vm_area_struct *vma, struct page *page,
 		     unsigned long u_vaddr)
 {
 	/* TBD: do we really need to clear the kernel mapping */
-	__flush_dcache_page(page_address(page), u_vaddr);
-	__flush_dcache_page(page_address(page), page_address(page));
+	__flush_dcache_page((phys_addr_t)page_address(page), u_vaddr);
+	__flush_dcache_page((phys_addr_t)page_address(page),
+			    (phys_addr_t)page_address(page));
 
 }
 
diff --git a/arch/arc/plat-eznps/include/plat/ctop.h b/arch/arc/plat-eznps/include/plat/ctop.h
index 9d6718c1a199..3c401ce0351e 100644
--- a/arch/arc/plat-eznps/include/plat/ctop.h
+++ b/arch/arc/plat-eznps/include/plat/ctop.h
@@ -21,6 +21,7 @@
 #error "Incorrect ctop.h include"
 #endif
 
+#include <linux/types.h>
 #include <soc/nps/common.h>
 
 /* core auxiliary registers */
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 7f868d9bb5ed..b3d268a79f05 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -894,19 +894,35 @@ static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache
 	pmd = stage2_get_pmd(kvm, cache, addr);
 	VM_BUG_ON(!pmd);
 
-	/*
-	 * Mapping in huge pages should only happen through a fault.  If a
-	 * page is merged into a transparent huge page, the individual
-	 * subpages of that huge page should be unmapped through MMU
-	 * notifiers before we get here.
-	 *
-	 * Merging of CompoundPages is not supported; they should become
-	 * splitting first, unmapped, merged, and mapped back in on-demand.
-	 */
-	VM_BUG_ON(pmd_present(*pmd) && pmd_pfn(*pmd) != pmd_pfn(*new_pmd));
-
 	old_pmd = *pmd;
 	if (pmd_present(old_pmd)) {
+		/*
+		 * Multiple vcpus faulting on the same PMD entry, can
+		 * lead to them sequentially updating the PMD with the
+		 * same value. Following the break-before-make
+		 * (pmd_clear() followed by tlb_flush()) process can
+		 * hinder forward progress due to refaults generated
+		 * on missing translations.
+		 *
+		 * Skip updating the page table if the entry is
+		 * unchanged.
+		 */
+		if (pmd_val(old_pmd) == pmd_val(*new_pmd))
+			return 0;
+
+		/*
+		 * Mapping in huge pages should only happen through a
+		 * fault.  If a page is merged into a transparent huge
+		 * page, the individual subpages of that huge page
+		 * should be unmapped through MMU notifiers before we
+		 * get here.
+		 *
+		 * Merging of CompoundPages is not supported; they
+		 * should become splitting first, unmapped, merged,
+		 * and mapped back in on-demand.
+		 */
+		VM_BUG_ON(pmd_pfn(old_pmd) != pmd_pfn(*new_pmd));
+
 		pmd_clear(pmd);
 		kvm_tlb_flush_vmid_ipa(kvm, addr);
 	} else {
@@ -962,6 +978,10 @@ static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
 	/* Create 2nd stage page table mapping - Level 3 */
 	old_pte = *pte;
 	if (pte_present(old_pte)) {
+		/* Skip page table update if there is no change */
+		if (pte_val(old_pte) == pte_val(*new_pte))
+			return 0;
+
 		kvm_set_pte(pte, __pte(0));
 		kvm_tlb_flush_vmid_ipa(kvm, addr);
 	} else {
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index f5077ea7af6d..30bcae0aef2a 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -274,7 +274,7 @@ static int __kprobes reenter_kprobe(struct kprobe *p,
 		break;
 	case KPROBE_HIT_SS:
 	case KPROBE_REENTER:
-		pr_warn("Unrecoverable kprobe detected at %p.\n", p->addr);
+		pr_warn("Unrecoverable kprobe detected.\n");
 		dump_kprobe(p);
 		BUG();
 		break;
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 9d07b421f090..fa6b2fad7a3d 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -147,7 +147,11 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 #ifdef CONFIG_HAVE_ARCH_PFN_VALID
 int pfn_valid(unsigned long pfn)
 {
-	return memblock_is_map_memory(pfn << PAGE_SHIFT);
+	phys_addr_t addr = pfn << PAGE_SHIFT;
+
+	if ((addr >> PAGE_SHIFT) != pfn)
+		return 0;
+	return memblock_is_map_memory(addr);
 }
 EXPORT_SYMBOL(pfn_valid);
 #endif
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 8c9cbf13d32a..6054d49e608e 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -212,12 +212,6 @@ static int __init bcm47xx_cpu_fixes(void)
 		 */
 		if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
 			cpu_wait = NULL;
-
-		/*
-		 * BCM47XX Erratum "R10: PCIe Transactions Periodically Fail"
-		 * Enable ExternalSync for sync instruction to take effect
-		 */
-		set_c0_config7(MIPS_CONF7_ES);
 		break;
 #endif
 	}
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 22a6782f84f5..df78b2ca70eb 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -663,8 +663,6 @@
 #define MIPS_CONF7_WII		(_ULCAST_(1) << 31)
 
 #define MIPS_CONF7_RPS		(_ULCAST_(1) << 2)
-/* ExternalSync */
-#define MIPS_CONF7_ES		(_ULCAST_(1) << 8)
 
 #define MIPS_CONF7_IAR		(_ULCAST_(1) << 10)
 #define MIPS_CONF7_AR		(_ULCAST_(1) << 16)
@@ -2643,7 +2641,6 @@ __BUILD_SET_C0(status)
 __BUILD_SET_C0(cause)
 __BUILD_SET_C0(config)
 __BUILD_SET_C0(config5)
-__BUILD_SET_C0(config7)
 __BUILD_SET_C0(intcontrol)
 __BUILD_SET_C0(intctl)
 __BUILD_SET_C0(srsmap)
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 0d36c87acbe2..ad6f019ff776 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -141,7 +141,7 @@ struct mips_fpu_struct {
 
 #define NUM_DSP_REGS   6
 
-typedef __u32 dspreg_t;
+typedef unsigned long dspreg_t;
 
 struct mips_dsp_state {
 	dspreg_t	dspr[NUM_DSP_REGS];
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 4f64913b4b4c..b702ba3a0df3 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -876,7 +876,7 @@ long arch_ptrace(struct task_struct *child, long request,
 				goto out;
 			}
 			dregs = __get_dsp_regs(child);
-			tmp = (unsigned long) (dregs[addr - DSP_BASE]);
+			tmp = dregs[addr - DSP_BASE];
 			break;
 		}
 		case DSP_CONTROL:
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index b1e945738138..4840af169683 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -140,7 +140,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 				goto out;
 			}
 			dregs = __get_dsp_regs(child);
-			tmp = (unsigned long) (dregs[addr - DSP_BASE]);
+			tmp = dregs[addr - DSP_BASE];
 			break;
 		}
 		case DSP_CONTROL:
diff --git a/arch/mips/lib/multi3.c b/arch/mips/lib/multi3.c
index 111ad475aa0c..4c2483f410c2 100644
--- a/arch/mips/lib/multi3.c
+++ b/arch/mips/lib/multi3.c
@@ -4,12 +4,12 @@
 #include "libgcc.h"
 
 /*
- * GCC 7 suboptimally generates __multi3 calls for mips64r6, so for that
- * specific case only we'll implement it here.
+ * GCC 7 & older can suboptimally generate __multi3 calls for mips64r6, so for
+ * that specific case only we implement that intrinsic here.
  *
  * See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82981
  */
-#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPSR6) && (__GNUC__ == 7)
+#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPSR6) && (__GNUC__ < 8)
 
 /* multiply 64-bit values, low 64-bits returned */
 static inline long long notrace dmulu(long long a, long long b)
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index c0e817f35e69..bdbbc320b006 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -326,6 +326,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
 		u64 imm64;
 		u8 *func;
 		u32 true_cond;
+		u32 tmp_idx;
 
 		/*
 		 * addrs[] maps a BPF bytecode address into a real offset from
@@ -685,11 +686,7 @@ emit_clear:
 		case BPF_STX | BPF_XADD | BPF_W:
 			/* Get EA into TMP_REG_1 */
 			PPC_ADDI(b2p[TMP_REG_1], dst_reg, off);
-			/* error if EA is not word-aligned */
-			PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x03);
-			PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + 12);
-			PPC_LI(b2p[BPF_REG_0], 0);
-			PPC_JMP(exit_addr);
+			tmp_idx = ctx->idx * 4;
 			/* load value from memory into TMP_REG_2 */
 			PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
 			/* add value from src_reg into this */
@@ -697,32 +694,16 @@ emit_clear:
 			/* store result back */
 			PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
 			/* we're done if this succeeded */
-			PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4));
-			/* otherwise, let's try once more */
-			PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
-			PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
-			PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
-			/* exit if the store was not successful */
-			PPC_LI(b2p[BPF_REG_0], 0);
-			PPC_BCC(COND_NE, exit_addr);
+			PPC_BCC_SHORT(COND_NE, tmp_idx);
 			break;
 		/* *(u64 *)(dst + off) += src */
 		case BPF_STX | BPF_XADD | BPF_DW:
 			PPC_ADDI(b2p[TMP_REG_1], dst_reg, off);
-			/* error if EA is not doubleword-aligned */
-			PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x07);
-			PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (3*4));
-			PPC_LI(b2p[BPF_REG_0], 0);
-			PPC_JMP(exit_addr);
-			PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
-			PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
-			PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
-			PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4));
+			tmp_idx = ctx->idx * 4;
 			PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
 			PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
 			PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
-			PPC_LI(b2p[BPF_REG_0], 0);
-			PPC_BCC(COND_NE, exit_addr);
+			PPC_BCC_SHORT(COND_NE, tmp_idx);
 			break;
 
 		/*
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 998b61cd0e56..4b39ba700d32 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -261,7 +261,6 @@ struct qdio_outbuf_state {
 	void *user;
 };
 
-#define QDIO_OUTBUF_STATE_FLAG_NONE	0x00
 #define QDIO_OUTBUF_STATE_FLAG_PENDING	0x01
 
 #define CHSC_AC1_INITIATE_INPUTQ	0x80
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 661d9fe63c43..ba2f21873cbd 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -462,6 +462,8 @@ retry:
 	/* No reason to continue if interrupted by SIGKILL. */
 	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
 		fault = VM_FAULT_SIGNAL;
+		if (flags & FAULT_FLAG_RETRY_NOWAIT)
+			goto out_up;
 		goto out;
 	}
 	if (unlikely(fault & VM_FAULT_ERROR))
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 949a871e9506..8bd25aebf488 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -517,8 +517,6 @@ static void bpf_jit_epilogue(struct bpf_jit *jit)
 			/* br %r1 */
 			_EMIT2(0x07f1);
 		} else {
-			/* larl %r1,.+14 */
-			EMIT6_PCREL_RILB(0xc0000000, REG_1, jit->prg + 14);
 			/* ex 0,S390_lowcore.br_r1_tampoline */
 			EMIT4_DISP(0x44000000, REG_0, REG_0,
 				   offsetof(struct lowcore, br_r1_trampoline));
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index f576f1073378..0dac2640c3a7 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -133,26 +133,14 @@ void __init numa_setup(void)
 {
 	pr_info("NUMA mode: %s\n", mode->name);
 	nodes_clear(node_possible_map);
+	/* Initially attach all possible CPUs to node 0. */
+	cpumask_copy(&node_to_cpumask_map[0], cpu_possible_mask);
 	if (mode->setup)
 		mode->setup();
 	numa_setup_memory();
 	memblock_dump_all();
 }
 
-/*
- * numa_init_early() - Initialization initcall
- *
- * This runs when only one CPU is online and before the first
- * topology update is called for by the scheduler.
- */
-static int __init numa_init_early(void)
-{
-	/* Attach all possible CPUs to node 0 for now. */
-	cpumask_copy(&node_to_cpumask_map[0], cpu_possible_mask);
-	return 0;
-}
-early_initcall(numa_init_early);
-
 /*
  * numa_init_late() - Initialization initcall
  *
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 03a1d5976ff5..87574110394d 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -407,6 +407,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 	hwirq = 0;
 	for_each_pci_msi_entry(msi, pdev) {
 		rc = -EIO;
+		if (hwirq >= msi_vecs)
+			break;
 		irq = irq_alloc_desc(0);	/* Alloc irq on node 0 */
 		if (irq < 0)
 			goto out_msi;
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 24384e1dc33d..a7aeb036b070 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -602,7 +602,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 {
 	struct pci_dev *dev;
 	int i, has_io, has_mem;
-	unsigned int cmd;
+	unsigned int cmd = 0;
 	struct linux_pcic *pcic;
 	/* struct linux_pbm_info* pbm = &pcic->pbm; */
 	int node;
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 4669b3a931ed..cda8e14bd72a 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -101,9 +101,13 @@ define cmd_check_data_rel
 	done
 endef
 
+# We need to run two commands under "if_changed", so merge them into a
+# single invocation.
+quiet_cmd_check-and-link-vmlinux = LD      $@
+      cmd_check-and-link-vmlinux = $(cmd_check_data_rel); $(cmd_ld)
+
 $(obj)/vmlinux: $(vmlinux-objs-y) FORCE
-	$(call if_changed,check_data_rel)
-	$(call if_changed,ld)
+	$(call if_changed,check-and-link-vmlinux)
 
 OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S
 $(obj)/vmlinux.bin: vmlinux FORCE
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index b26ee32f73e8..fd4484ae3ffc 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -578,7 +578,7 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
 {
 	struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
 	struct perf_event *event = pcpu->event;
-	struct hw_perf_event *hwc = &event->hw;
+	struct hw_perf_event *hwc;
 	struct perf_sample_data data;
 	struct perf_raw_record raw;
 	struct pt_regs regs;
@@ -601,6 +601,10 @@ fail:
 		return 0;
 	}
 
+	if (WARN_ON_ONCE(!event))
+		goto fail;
+
+	hwc = &event->hw;
 	msr = hwc->config_base;
 	buf = ibs_data.regs;
 	rdmsrl(msr, *buf);
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index 5b1177f5a963..508a062e6cf1 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -32,7 +32,8 @@ extern inline unsigned long native_save_fl(void)
 	return flags;
 }
 
-static inline void native_restore_fl(unsigned long flags)
+extern inline void native_restore_fl(unsigned long flags);
+extern inline void native_restore_fl(unsigned long flags)
 {
 	asm volatile("push %0 ; popf"
 		     : /* no output */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index d5525a7e119e..ee8c6290c421 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -136,6 +136,8 @@ struct cpuinfo_x86 {
 	/* Index into per_cpu list: */
 	u16			cpu_index;
 	u32			microcode;
+	/* Address space bits used by the cache internally */
+	u8			x86_cache_bits;
 };
 
 #define X86_VENDOR_INTEL	0
@@ -173,9 +175,9 @@ extern const struct seq_operations cpuinfo_op;
 
 extern void cpu_detect(struct cpuinfo_x86 *c);
 
-static inline unsigned long l1tf_pfn_limit(void)
+static inline unsigned long long l1tf_pfn_limit(void)
 {
-	return BIT(boot_cpu_data.x86_phys_bits - 1 - PAGE_SHIFT) - 1;
+	return BIT_ULL(boot_cpu_data.x86_cache_bits - 1 - PAGE_SHIFT);
 }
 
 extern void early_cpu_init(void);
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index ac67a76550bd..8103adacbc83 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -651,6 +651,45 @@ EXPORT_SYMBOL_GPL(l1tf_mitigation);
 enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO;
 EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation);
 
+/*
+ * These CPUs all support 44bits physical address space internally in the
+ * cache but CPUID can report a smaller number of physical address bits.
+ *
+ * The L1TF mitigation uses the top most address bit for the inversion of
+ * non present PTEs. When the installed memory reaches into the top most
+ * address bit due to memory holes, which has been observed on machines
+ * which report 36bits physical address bits and have 32G RAM installed,
+ * then the mitigation range check in l1tf_select_mitigation() triggers.
+ * This is a false positive because the mitigation is still possible due to
+ * the fact that the cache uses 44bit internally. Use the cache bits
+ * instead of the reported physical bits and adjust them on the affected
+ * machines to 44bit if the reported bits are less than 44.
+ */
+static void override_cache_bits(struct cpuinfo_x86 *c)
+{
+	if (c->x86 != 6)
+		return;
+
+	switch (c->x86_model) {
+	case INTEL_FAM6_NEHALEM:
+	case INTEL_FAM6_WESTMERE:
+	case INTEL_FAM6_SANDYBRIDGE:
+	case INTEL_FAM6_IVYBRIDGE:
+	case INTEL_FAM6_HASWELL_CORE:
+	case INTEL_FAM6_HASWELL_ULT:
+	case INTEL_FAM6_HASWELL_GT3E:
+	case INTEL_FAM6_BROADWELL_CORE:
+	case INTEL_FAM6_BROADWELL_GT3E:
+	case INTEL_FAM6_SKYLAKE_MOBILE:
+	case INTEL_FAM6_SKYLAKE_DESKTOP:
+	case INTEL_FAM6_KABYLAKE_MOBILE:
+	case INTEL_FAM6_KABYLAKE_DESKTOP:
+		if (c->x86_cache_bits < 44)
+			c->x86_cache_bits = 44;
+		break;
+	}
+}
+
 static void __init l1tf_select_mitigation(void)
 {
 	u64 half_pa;
@@ -658,6 +697,8 @@ static void __init l1tf_select_mitigation(void)
 	if (!boot_cpu_has_bug(X86_BUG_L1TF))
 		return;
 
+	override_cache_bits(&boot_cpu_data);
+
 	switch (l1tf_mitigation) {
 	case L1TF_MITIGATION_OFF:
 	case L1TF_MITIGATION_FLUSH_NOWARN:
@@ -677,14 +718,13 @@ static void __init l1tf_select_mitigation(void)
 	return;
 #endif
 
-	/*
-	 * This is extremely unlikely to happen because almost all
-	 * systems have far more MAX_PA/2 than RAM can be fit into
-	 * DIMM slots.
-	 */
 	half_pa = (u64)l1tf_pfn_limit() << PAGE_SHIFT;
 	if (e820_any_mapped(half_pa, ULLONG_MAX - half_pa, E820_RAM)) {
 		pr_warn("System has more than MAX_PA/2 memory. L1TF mitigation not effective.\n");
+		pr_info("You may make it effective by booting the kernel with mem=%llu parameter.\n",
+				half_pa);
+		pr_info("However, doing so will make a part of your RAM unusable.\n");
+		pr_info("Reading https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html might help you decide.\n");
 		return;
 	}
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 13471b71bec7..dc0850bb74be 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -882,6 +882,7 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
 			}
 		}
 #endif
+	c->x86_cache_bits = c->x86_phys_bits;
 }
 
 static const __initconst struct x86_cpu_id cpu_no_speculation[] = {
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 9ad86c4bf360..cee0fec0d232 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -109,6 +109,9 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
 	if (cpu_has(c, X86_FEATURE_HYPERVISOR))
 		return false;
 
+	if (c->x86 != 6)
+		return false;
+
 	for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) {
 		if (c->x86_model == spectre_bad_microcodes[i].model &&
 		    c->x86_stepping == spectre_bad_microcodes[i].stepping)
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 85f854b98a9d..3576ece9ef88 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -15,6 +15,7 @@
 #include <linux/bug.h>
 #include <linux/nmi.h>
 #include <linux/sysfs.h>
+#include <linux/kasan.h>
 
 #include <asm/stacktrace.h>
 #include <asm/unwind.h>
@@ -229,7 +230,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 	 * We're not going to return, but we might be on an IST stack or
 	 * have very little stack space left.  Rewind the stack and kill
 	 * the task.
+	 * Before we rewind the stack, we have to tell KASAN that we're going to
+	 * reuse the task stack and that existing poisons are invalid.
 	 */
+	kasan_unpoison_task_stack(current);
 	rewind_stack_do_exit(signr);
 }
 NOKPROBE_SYMBOL(oops_end);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index dffe81d3c261..a2661814bde0 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -360,6 +360,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
 	start_thread_common(regs, new_ip, new_sp,
 			    __USER_CS, __USER_DS, 0);
 }
+EXPORT_SYMBOL_GPL(start_thread);
 
 #ifdef CONFIG_COMPAT
 void compat_start_thread(struct pt_regs *regs, u32 new_ip, u32 new_sp)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c855080c7a71..5f44d63a9d69 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -4973,8 +4973,6 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 
 	clgi();
 
-	local_irq_enable();
-
 	/*
 	 * If this vCPU has touched SPEC_CTRL, restore the guest's value if
 	 * it's non-zero. Since vmentry is serialising on affected CPUs, there
@@ -4983,6 +4981,8 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 	 */
 	x86_spec_ctrl_set_guest(svm->spec_ctrl, svm->virt_spec_ctrl);
 
+	local_irq_enable();
+
 	asm volatile (
 		"push %%" _ASM_BP "; \n\t"
 		"mov %c[rbx](%[svm]), %%" _ASM_BX " \n\t"
@@ -5105,12 +5105,12 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 	if (unlikely(!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL)))
 		svm->spec_ctrl = native_read_msr(MSR_IA32_SPEC_CTRL);
 
-	x86_spec_ctrl_restore_host(svm->spec_ctrl, svm->virt_spec_ctrl);
-
 	reload_tss(vcpu);
 
 	local_irq_disable();
 
+	x86_spec_ctrl_restore_host(svm->spec_ctrl, svm->virt_spec_ctrl);
+
 	vcpu->arch.cr2 = svm->vmcb->save.cr2;
 	vcpu->arch.regs[VCPU_REGS_RAX] = svm->vmcb->save.rax;
 	vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 12826607a995..8e4ac0a91309 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8670,9 +8670,6 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
  * information but as all relevant affected CPUs have 32KiB L1D cache size
  * there is no point in doing so.
  */
-#define L1D_CACHE_ORDER 4
-static void *vmx_l1d_flush_pages;
-
 static void vmx_l1d_flush(struct kvm_vcpu *vcpu)
 {
 	int size = PAGE_SIZE << L1D_CACHE_ORDER;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 5d35b555115a..90801a8f19c9 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -792,7 +792,7 @@ unsigned long max_swapfile_size(void)
 
 	if (boot_cpu_has_bug(X86_BUG_L1TF)) {
 		/* Limit the swap file size to MAX_PA/2 for L1TF workaround */
-		unsigned long l1tf_limit = l1tf_pfn_limit() + 1;
+		unsigned long long l1tf_limit = l1tf_pfn_limit();
 		/*
 		 * We encode swap offsets also with 3 bits below those for pfn
 		 * which makes the usable limit higher.
@@ -800,7 +800,7 @@ unsigned long max_swapfile_size(void)
 #if CONFIG_PGTABLE_LEVELS > 2
 		l1tf_limit <<= PAGE_SHIFT - SWP_OFFSET_FIRST_BIT;
 #endif
-		pages = min_t(unsigned long, l1tf_limit, pages);
+		pages = min_t(unsigned long long, l1tf_limit, pages);
 	}
 	return pages;
 }
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 5aad869fa205..74609a957c49 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -138,7 +138,7 @@ bool pfn_modify_allowed(unsigned long pfn, pgprot_t prot)
 	/* If it's real memory always allow */
 	if (pfn_valid(pfn))
 		return true;
-	if (pfn > l1tf_pfn_limit() && !capable(CAP_SYS_ADMIN))
+	if (pfn >= l1tf_pfn_limit() && !capable(CAP_SYS_ADMIN))
 		return false;
 	return true;
 }
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 8e2e4757adcb..5a42ae4078c2 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -185,7 +185,7 @@ EXPORT_SYMBOL_GPL(of_pm_clk_add_clk);
 int of_pm_clk_add_clks(struct device *dev)
 {
 	struct clk **clks;
-	unsigned int i, count;
+	int i, count;
 	int ret;
 
 	if (!dev || !dev->of_node)
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 07b77fb102a1..987e8f503522 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -2536,7 +2536,7 @@ static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi,
 	if (!CDROM_CAN(CDC_SELECT_DISC) ||
 	    (arg == CDSL_CURRENT || arg == CDSL_NONE))
 		return cdi->ops->drive_status(cdi, CDSL_CURRENT);
-	if (((int)arg >= cdi->capacity))
+	if (arg >= cdi->capacity)
 		return -EINVAL;
 	return cdrom_slot_status(cdi, arg);
 }
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index 8387c7a40bda..05671c03efe2 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -629,7 +629,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
 	MUX(0, "clk_i2sout_src", mux_i2sch_p, CLK_SET_RATE_PARENT,
 			RK3399_CLKSEL_CON(31), 0, 2, MFLAGS),
 	COMPOSITE_NODIV(SCLK_I2S_8CH_OUT, "clk_i2sout", mux_i2sout_p, CLK_SET_RATE_PARENT,
-			RK3399_CLKSEL_CON(30), 8, 2, MFLAGS,
+			RK3399_CLKSEL_CON(31), 2, 1, MFLAGS,
 			RK3399_CLKGATE_CON(8), 12, GFLAGS),
 
 	/* uart */
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index a68f94daf9b6..32ab5c32834b 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -424,6 +424,18 @@ static void adv7511_hpd_work(struct work_struct *work)
 	else
 		status = connector_status_disconnected;
 
+	/*
+	 * The bridge resets its registers on unplug. So when we get a plug
+	 * event and we're already supposed to be powered, cycle the bridge to
+	 * restore its state.
+	 */
+	if (status == connector_status_connected &&
+	    adv7511->connector.status == connector_status_disconnected &&
+	    adv7511->powered) {
+		regcache_mark_dirty(adv7511->regmap);
+		adv7511_power_on(adv7511);
+	}
+
 	if (adv7511->connector.status != status) {
 		adv7511->connector.status = status;
 		drm_kms_helper_hotplug_event(adv7511->connector.dev);
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index 3ce391c239b0..67881e5517fb 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -634,6 +634,9 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data)
 		return PTR_ERR(imx_ldb->regmap);
 	}
 
+	/* disable LDB by resetting the control register to POR default */
+	regmap_write(imx_ldb->regmap, IOMUXC_GPR2, 0);
+
 	imx_ldb->dev = dev;
 
 	if (of_id)
@@ -675,14 +678,14 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data)
 		if (ret || i < 0 || i > 1)
 			return -EINVAL;
 
+		if (!of_device_is_available(child))
+			continue;
+
 		if (dual && i > 0) {
 			dev_warn(dev, "dual-channel mode, ignoring second output\n");
 			continue;
 		}
 
-		if (!of_device_is_available(child))
-			continue;
-
 		channel = &imx_ldb->channel[i];
 		channel->ldb = imx_ldb;
 		channel->chno = i;
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 39d0fdcb17d2..6a7994a79f55 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -217,7 +217,7 @@ static int udl_fb_open(struct fb_info *info, int user)
 
 		struct fb_deferred_io *fbdefio;
 
-		fbdefio = kmalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
+		fbdefio = kzalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
 
 		if (fbdefio) {
 			fbdefio->delay = DL_DEFIO_WRITE_DELAY;
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 873f010d9616..10e2c198ad72 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -169,18 +169,13 @@ static void udl_free_urb_list(struct drm_device *dev)
 	struct list_head *node;
 	struct urb_node *unode;
 	struct urb *urb;
-	int ret;
 	unsigned long flags;
 
 	DRM_DEBUG("Waiting for completes and freeing all render urbs\n");
 
 	/* keep waiting and freeing, until we've got 'em all */
 	while (count--) {
-
-		/* Getting interrupted means a leak, but ok at shutdown*/
-		ret = down_interruptible(&udl->urbs.limit_sem);
-		if (ret)
-			break;
+		down(&udl->urbs.limit_sem);
 
 		spin_lock_irqsave(&udl->urbs.lock, flags);
 
@@ -204,17 +199,22 @@ static void udl_free_urb_list(struct drm_device *dev)
 static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
 {
 	struct udl_device *udl = dev->dev_private;
-	int i = 0;
 	struct urb *urb;
 	struct urb_node *unode;
 	char *buf;
+	size_t wanted_size = count * size;
 
 	spin_lock_init(&udl->urbs.lock);
 
+retry:
 	udl->urbs.size = size;
 	INIT_LIST_HEAD(&udl->urbs.list);
 
-	while (i < count) {
+	sema_init(&udl->urbs.limit_sem, 0);
+	udl->urbs.count = 0;
+	udl->urbs.available = 0;
+
+	while (udl->urbs.count * size < wanted_size) {
 		unode = kzalloc(sizeof(struct urb_node), GFP_KERNEL);
 		if (!unode)
 			break;
@@ -230,11 +230,16 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
 		}
 		unode->urb = urb;
 
-		buf = usb_alloc_coherent(udl->udev, MAX_TRANSFER, GFP_KERNEL,
+		buf = usb_alloc_coherent(udl->udev, size, GFP_KERNEL,
 					 &urb->transfer_dma);
 		if (!buf) {
 			kfree(unode);
 			usb_free_urb(urb);
+			if (size > PAGE_SIZE) {
+				size /= 2;
+				udl_free_urb_list(dev);
+				goto retry;
+			}
 			break;
 		}
 
@@ -245,16 +250,14 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
 
 		list_add_tail(&unode->entry, &udl->urbs.list);
 
-		i++;
+		up(&udl->urbs.limit_sem);
+		udl->urbs.count++;
+		udl->urbs.available++;
 	}
 
-	sema_init(&udl->urbs.limit_sem, i);
-	udl->urbs.count = i;
-	udl->urbs.available = i;
-
-	DRM_DEBUG("allocated %d %d byte urbs\n", i, (int) size);
+	DRM_DEBUG("allocated %d %d byte urbs\n", udl->urbs.count, (int) size);
 
-	return i;
+	return udl->urbs.count;
 }
 
 struct urb *udl_get_urb(struct drm_device *dev)
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 9e7ef5cf5d49..b2d8b63176db 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -234,12 +234,16 @@ static void i2c_davinci_calc_clk_dividers(struct davinci_i2c_dev *dev)
 	/*
 	 * It's not always possible to have 1 to 2 ratio when d=7, so fall back
 	 * to minimal possible clkh in this case.
+	 *
+	 * Note:
+	 * CLKH is not allowed to be 0, in this case I2C clock is not generated
+	 * at all
 	 */
-	if (clk >= clkl + d) {
+	if (clk > clkl + d) {
 		clkh = clk - clkl - d;
 		clkl -= d;
 	} else {
-		clkh = 0;
+		clkh = 1;
 		clkl = clk - (d << 1);
 	}
 
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 60f5a8ded8dd..8904491dfda4 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -304,7 +304,6 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		goto out;
 	}
 
-	*offset = 0;
 	cb = mei_cl_alloc_cb(cl, length, MEI_FOP_WRITE, file);
 	if (!cb) {
 		rets = -ENOMEM;
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index c7427bdd3a4b..2949a381a94d 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -86,6 +86,11 @@ static u32 mpc52xx_can_get_clock(struct platform_device *ofdev,
 		return 0;
 	}
 	cdm = of_iomap(np_cdm, 0);
+	if (!cdm) {
+		of_node_put(np_cdm);
+		dev_err(&ofdev->dev, "can't map clock node!\n");
+		return 0;
+	}
 
 	if (in_8(&cdm->ipb_clk_sel) & 0x1)
 		freq *= 2;
diff --git a/drivers/net/ethernet/3com/Kconfig b/drivers/net/ethernet/3com/Kconfig
index 5b7658bcf020..5c3ef9fc8207 100644
--- a/drivers/net/ethernet/3com/Kconfig
+++ b/drivers/net/ethernet/3com/Kconfig
@@ -32,7 +32,7 @@ config EL3
 
 config 3C515
 	tristate "3c515 ISA \"Fast EtherLink\""
-	depends on ISA && ISA_DMA_API
+	depends on ISA && ISA_DMA_API && !PPC32
 	---help---
 	  If you have a 3Com ISA EtherLink XL "Corkscrew" 3c515 Fast Ethernet
 	  network card, say Y here.
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 0038709fd317..ec59425fdbff 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -44,7 +44,7 @@ config AMD8111_ETH
 
 config LANCE
 	tristate "AMD LANCE and PCnet (AT1500 and NE2100) support"
-	depends on ISA && ISA_DMA_API && !ARM
+	depends on ISA && ISA_DMA_API && !ARM && !PPC32
 	---help---
 	  If you have a network (Ethernet) card of this type, say Y here.
 	  Some LinkSys cards are of this type.
@@ -138,7 +138,7 @@ config PCMCIA_NMCLAN
 
 config NI65
 	tristate "NI6510 support"
-	depends on ISA && ISA_DMA_API && !ARM
+	depends on ISA && ISA_DMA_API && !ARM && !PPC32
 	---help---
 	  If you have a network (Ethernet) card of this type, say Y here.
 
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index a3200ea6d765..85e7177c479f 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -1678,6 +1678,7 @@ static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter)
 	skb = build_skb(page_address(page) + adapter->rx_page_offset,
 			adapter->rx_frag_size);
 	if (likely(skb)) {
+		skb_reserve(skb, NET_SKB_PAD);
 		adapter->rx_page_offset += adapter->rx_frag_size;
 		if (adapter->rx_page_offset >= PAGE_SIZE)
 			adapter->rx_page = NULL;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 5f19427c7b27..8aecd8ef6542 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -3367,14 +3367,18 @@ static int bnx2x_set_rss_flags(struct bnx2x *bp, struct ethtool_rxnfc *info)
 			DP(BNX2X_MSG_ETHTOOL,
 			   "rss re-configured, UDP 4-tupple %s\n",
 			   udp_rss_requested ? "enabled" : "disabled");
-			return bnx2x_rss(bp, &bp->rss_conf_obj, false, true);
+			if (bp->state == BNX2X_STATE_OPEN)
+				return bnx2x_rss(bp, &bp->rss_conf_obj, false,
+						 true);
 		} else if ((info->flow_type == UDP_V6_FLOW) &&
 			   (bp->rss_conf_obj.udp_rss_v6 != udp_rss_requested)) {
 			bp->rss_conf_obj.udp_rss_v6 = udp_rss_requested;
 			DP(BNX2X_MSG_ETHTOOL,
 			   "rss re-configured, UDP 4-tupple %s\n",
 			   udp_rss_requested ? "enabled" : "disabled");
-			return bnx2x_rss(bp, &bp->rss_conf_obj, false, true);
+			if (bp->state == BNX2X_STATE_OPEN)
+				return bnx2x_rss(bp, &bp->rss_conf_obj, false,
+						 true);
 		}
 		return 0;
 
@@ -3488,7 +3492,10 @@ static int bnx2x_set_rxfh(struct net_device *dev, const u32 *indir,
 		bp->rss_conf_obj.ind_table[i] = indir[i] + bp->fp->cl_id;
 	}
 
-	return bnx2x_config_rss_eth(bp, false);
+	if (bp->state == BNX2X_STATE_OPEN)
+		return bnx2x_config_rss_eth(bp, false);
+
+	return 0;
 }
 
 /**
diff --git a/drivers/net/ethernet/cirrus/Kconfig b/drivers/net/ethernet/cirrus/Kconfig
index 5ab912937aff..ec0b545197e2 100644
--- a/drivers/net/ethernet/cirrus/Kconfig
+++ b/drivers/net/ethernet/cirrus/Kconfig
@@ -19,6 +19,7 @@ if NET_VENDOR_CIRRUS
 config CS89x0
 	tristate "CS89x0 support"
 	depends on ISA || EISA || ARM
+	depends on !PPC32
 	---help---
 	  Support for CS89x0 chipset based Ethernet cards. If you have a
 	  network (Ethernet) card of this type, say Y and read the file
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 2e9bab45d419..f7e7b79c6050 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1842,10 +1842,32 @@ static int enic_stop(struct net_device *netdev)
 	return 0;
 }
 
+static int _enic_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	bool running = netif_running(netdev);
+	int err = 0;
+
+	ASSERT_RTNL();
+	if (running) {
+		err = enic_stop(netdev);
+		if (err)
+			return err;
+	}
+
+	netdev->mtu = new_mtu;
+
+	if (running) {
+		err = enic_open(netdev);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int enic_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct enic *enic = netdev_priv(netdev);
-	int running = netif_running(netdev);
 
 	if (new_mtu < ENIC_MIN_MTU || new_mtu > ENIC_MAX_MTU)
 		return -EINVAL;
@@ -1853,20 +1875,12 @@ static int enic_change_mtu(struct net_device *netdev, int new_mtu)
 	if (enic_is_dynamic(enic) || enic_is_sriov_vf(enic))
 		return -EOPNOTSUPP;
 
-	if (running)
-		enic_stop(netdev);
-
-	netdev->mtu = new_mtu;
-
 	if (netdev->mtu > enic->port_mtu)
 		netdev_warn(netdev,
-			"interface MTU (%d) set higher than port MTU (%d)\n",
-			netdev->mtu, enic->port_mtu);
+			    "interface MTU (%d) set higher than port MTU (%d)\n",
+			    netdev->mtu, enic->port_mtu);
 
-	if (running)
-		enic_open(netdev);
-
-	return 0;
+	return _enic_change_mtu(netdev, new_mtu);
 }
 
 static void enic_change_mtu_work(struct work_struct *work)
@@ -1874,47 +1888,9 @@ static void enic_change_mtu_work(struct work_struct *work)
 	struct enic *enic = container_of(work, struct enic, change_mtu_work);
 	struct net_device *netdev = enic->netdev;
 	int new_mtu = vnic_dev_mtu(enic->vdev);
-	int err;
-	unsigned int i;
-
-	new_mtu = max_t(int, ENIC_MIN_MTU, min_t(int, ENIC_MAX_MTU, new_mtu));
 
 	rtnl_lock();
-
-	/* Stop RQ */
-	del_timer_sync(&enic->notify_timer);
-
-	for (i = 0; i < enic->rq_count; i++)
-		napi_disable(&enic->napi[i]);
-
-	vnic_intr_mask(&enic->intr[0]);
-	enic_synchronize_irqs(enic);
-	err = vnic_rq_disable(&enic->rq[0]);
-	if (err) {
-		rtnl_unlock();
-		netdev_err(netdev, "Unable to disable RQ.\n");
-		return;
-	}
-	vnic_rq_clean(&enic->rq[0], enic_free_rq_buf);
-	vnic_cq_clean(&enic->cq[0]);
-	vnic_intr_clean(&enic->intr[0]);
-
-	/* Fill RQ with new_mtu-sized buffers */
-	netdev->mtu = new_mtu;
-	vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
-	/* Need at least one buffer on ring to get going */
-	if (vnic_rq_desc_used(&enic->rq[0]) == 0) {
-		rtnl_unlock();
-		netdev_err(netdev, "Unable to alloc receive buffers.\n");
-		return;
-	}
-
-	/* Start RQ */
-	vnic_rq_enable(&enic->rq[0]);
-	napi_enable(&enic->napi[0]);
-	vnic_intr_unmask(&enic->intr[0]);
-	enic_notify_timer_start(enic);
-
+	(void)_enic_change_mtu(netdev, new_mtu);
 	rtnl_unlock();
 
 	netdev_info(netdev, "interface MTU set as %d\n", netdev->mtu);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index ddd410a91e13..715776e2cfe5 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -313,7 +313,7 @@ qed_sp_update_mcast_bin(struct qed_hwfn *p_hwfn,
 
 	p_ramrod->common.update_approx_mcast_flg = 1;
 	for (i = 0; i < ETH_MULTICAST_MAC_BINS_IN_REGS; i++) {
-		u32 *p_bins = (u32 *)p_params->bins;
+		u32 *p_bins = p_params->bins;
 
 		p_ramrod->approx_mcast.bins[i] = cpu_to_le32(p_bins[i]);
 	}
@@ -1182,8 +1182,8 @@ qed_sp_eth_filter_mcast(struct qed_hwfn *p_hwfn,
 			enum spq_mode comp_mode,
 			struct qed_spq_comp_cb *p_comp_data)
 {
-	unsigned long bins[ETH_MULTICAST_MAC_BINS_IN_REGS];
 	struct vport_update_ramrod_data *p_ramrod = NULL;
+	u32 bins[ETH_MULTICAST_MAC_BINS_IN_REGS];
 	struct qed_spq_entry *p_ent = NULL;
 	struct qed_sp_init_data init_data;
 	u8 abs_vport_id = 0;
@@ -1219,26 +1219,25 @@ qed_sp_eth_filter_mcast(struct qed_hwfn *p_hwfn,
 	/* explicitly clear out the entire vector */
 	memset(&p_ramrod->approx_mcast.bins, 0,
 	       sizeof(p_ramrod->approx_mcast.bins));
-	memset(bins, 0, sizeof(unsigned long) *
-	       ETH_MULTICAST_MAC_BINS_IN_REGS);
+	memset(bins, 0, sizeof(bins));
 	/* filter ADD op is explicit set op and it removes
 	 *  any existing filters for the vport
 	 */
 	if (p_filter_cmd->opcode == QED_FILTER_ADD) {
 		for (i = 0; i < p_filter_cmd->num_mc_addrs; i++) {
-			u32 bit;
+			u32 bit, nbits;
 
 			bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
-			__set_bit(bit, bins);
+			nbits = sizeof(u32) * BITS_PER_BYTE;
+			bins[bit / nbits] |= 1 << (bit % nbits);
 		}
 
 		/* Convert to correct endianity */
 		for (i = 0; i < ETH_MULTICAST_MAC_BINS_IN_REGS; i++) {
 			struct vport_update_ramrod_mcast *p_ramrod_bins;
-			u32 *p_bins = (u32 *)bins;
 
 			p_ramrod_bins = &p_ramrod->approx_mcast;
-			p_ramrod_bins->bins[i] = cpu_to_le32(p_bins[i]);
+			p_ramrod_bins->bins[i] = cpu_to_le32(bins[i]);
 		}
 	}
 
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.h b/drivers/net/ethernet/qlogic/qed/qed_l2.h
index e495d62fcc03..14d00173cad0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.h
@@ -156,7 +156,7 @@ struct qed_sp_vport_update_params {
 	u8				anti_spoofing_en;
 	u8				update_accept_any_vlan_flg;
 	u8				accept_any_vlan;
-	unsigned long			bins[8];
+	u32				bins[8];
 	struct qed_rss_params		*rss_params;
 	struct qed_filter_accept_flags	accept_flags;
 	struct qed_sge_tpa_params	*sge_tpa_params;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index 8b7d2f963ee1..eaa242df4131 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -613,6 +613,7 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
 		break;
 	default:
 		p_link->speed = 0;
+		p_link->link_up = 0;
 	}
 
 	if (p_link->link_up && p_link->speed)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index 48bc5c151336..6379bfedc9f0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -2157,7 +2157,7 @@ qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
 
 	p_data->update_approx_mcast_flg = 1;
 	memcpy(p_data->bins, p_mcast_tlv->bins,
-	       sizeof(unsigned long) * ETH_MULTICAST_MAC_BINS_IN_REGS);
+	       sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
 	*tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
 }
 
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index 0645124a887b..faf8215872de 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -786,7 +786,7 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
 		resp_size += sizeof(struct pfvf_def_resp_tlv);
 
 		memcpy(p_mcast_tlv->bins, p_params->bins,
-		       sizeof(unsigned long) * ETH_MULTICAST_MAC_BINS_IN_REGS);
+		       sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
 	}
 
 	update_rx = p_params->accept_flags.update_rx_mode_config;
@@ -972,7 +972,7 @@ void qed_vf_pf_filter_mcast(struct qed_hwfn *p_hwfn,
 			u32 bit;
 
 			bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
-			__set_bit(bit, sp_params.bins);
+			sp_params.bins[bit / 32] |= 1 << (bit % 32);
 		}
 	}
 
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.h b/drivers/net/ethernet/qlogic/qed/qed_vf.h
index 35db7a28aa13..b962ef8e98ef 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.h
@@ -336,7 +336,12 @@ struct vfpf_vport_update_mcast_bin_tlv {
 	struct channel_tlv tl;
 	u8 padding[4];
 
-	u64 bins[8];
+	/* There are only 256 approx bins, and in HSI they're divided into
+	 * 32-bit values. As old VFs used to set-bit to the values on its side,
+	 * the upper half of the array is never expected to contain any data.
+	 */
+	u64 bins[4];
+	u64 obsolete_bins[4];
 };
 
 struct vfpf_vport_update_accept_param_tlv {
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
index 63307ea97846..9beea13e2e1f 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
@@ -217,6 +217,7 @@ issue:
 	ret = of_mdiobus_register(bus, np1);
 	if (ret) {
 		mdiobus_free(bus);
+		lp->mii_bus = NULL;
 		return ret;
 	}
 	return 0;
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 31a6d87b61b2..0d4440f28f6b 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -946,7 +946,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x413c, 0x81b3, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
 	{QMI_FIXED_INTF(0x413c, 0x81b6, 8)},	/* Dell Wireless 5811e */
 	{QMI_FIXED_INTF(0x413c, 0x81b6, 10)},	/* Dell Wireless 5811e */
-	{QMI_FIXED_INTF(0x413c, 0x81d7, 1)},	/* Dell Wireless 5821e */
+	{QMI_FIXED_INTF(0x413c, 0x81d7, 0)},	/* Dell Wireless 5821e */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)},	/* HP lt4120 Snapdragon X5 LTE */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index 299140c04556..04b60ed59ea0 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -1372,7 +1372,7 @@ static irqreturn_t lmc_interrupt (int irq, void *dev_instance) /*fold00*/
             case 0x001:
                 printk(KERN_WARNING "%s: Master Abort (naughty)\n", dev->name);
                 break;
-            case 0x010:
+            case 0x002:
                 printk(KERN_WARNING "%s: Target Abort (not so naughty)\n", dev->name);
                 break;
             default:
diff --git a/drivers/net/wireless/broadcom/b43/leds.c b/drivers/net/wireless/broadcom/b43/leds.c
index cb987c2ecc6b..87131f663292 100644
--- a/drivers/net/wireless/broadcom/b43/leds.c
+++ b/drivers/net/wireless/broadcom/b43/leds.c
@@ -131,7 +131,7 @@ static int b43_register_led(struct b43_wldev *dev, struct b43_led *led,
 	led->wl = dev->wl;
 	led->index = led_index;
 	led->activelow = activelow;
-	strncpy(led->name, name, sizeof(led->name));
+	strlcpy(led->name, name, sizeof(led->name));
 	atomic_set(&led->state, 0);
 
 	led->led_dev.name = led->name;
diff --git a/drivers/net/wireless/broadcom/b43legacy/leds.c b/drivers/net/wireless/broadcom/b43legacy/leds.c
index fd4565389c77..bc922118b6ac 100644
--- a/drivers/net/wireless/broadcom/b43legacy/leds.c
+++ b/drivers/net/wireless/broadcom/b43legacy/leds.c
@@ -101,7 +101,7 @@ static int b43legacy_register_led(struct b43legacy_wldev *dev,
 	led->dev = dev;
 	led->index = led_index;
 	led->activelow = activelow;
-	strncpy(led->name, name, sizeof(led->name));
+	strlcpy(led->name, name, sizeof(led->name));
 
 	led->led_dev.name = led->name;
 	led->led_dev.default_trigger = default_trigger;
diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
index a4e9f430d452..e2cca91fd266 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
@@ -433,7 +433,7 @@ static void imx1_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
 	const char *name;
 	int i, ret;
 
-	if (group > info->ngroups)
+	if (group >= info->ngroups)
 		return;
 
 	seq_puts(s, "\n");
diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c
index edb36bf781b0..f627b39f64bf 100644
--- a/drivers/power/supply/generic-adc-battery.c
+++ b/drivers/power/supply/generic-adc-battery.c
@@ -243,10 +243,10 @@ static int gab_probe(struct platform_device *pdev)
 	struct power_supply_desc *psy_desc;
 	struct power_supply_config psy_cfg = {};
 	struct gab_platform_data *pdata = pdev->dev.platform_data;
-	enum power_supply_property *properties;
 	int ret = 0;
 	int chan;
-	int index = 0;
+	int index = ARRAY_SIZE(gab_props);
+	bool any = false;
 
 	adc_bat = devm_kzalloc(&pdev->dev, sizeof(*adc_bat), GFP_KERNEL);
 	if (!adc_bat) {
@@ -280,8 +280,6 @@ static int gab_probe(struct platform_device *pdev)
 	}
 
 	memcpy(psy_desc->properties, gab_props, sizeof(gab_props));
-	properties = (enum power_supply_property *)
-			((char *)psy_desc->properties + sizeof(gab_props));
 
 	/*
 	 * getting channel from iio and copying the battery properties
@@ -295,15 +293,22 @@ static int gab_probe(struct platform_device *pdev)
 			adc_bat->channel[chan] = NULL;
 		} else {
 			/* copying properties for supported channels only */
-			memcpy(properties + sizeof(*(psy_desc->properties)) * index,
-					&gab_dyn_props[chan],
-					sizeof(gab_dyn_props[chan]));
-			index++;
+			int index2;
+
+			for (index2 = 0; index2 < index; index2++) {
+				if (psy_desc->properties[index2] ==
+				    gab_dyn_props[chan])
+					break;	/* already known */
+			}
+			if (index2 == index)	/* really new */
+				psy_desc->properties[index++] =
+					gab_dyn_props[chan];
+			any = true;
 		}
 	}
 
 	/* none of the channels are supported so let's bail out */
-	if (index == 0) {
+	if (!any) {
 		ret = -ENODEV;
 		goto second_mem_fail;
 	}
@@ -314,7 +319,7 @@ static int gab_probe(struct platform_device *pdev)
 	 * as come channels may be not be supported by the device.So
 	 * we need to take care of that.
 	 */
-	psy_desc->num_properties = ARRAY_SIZE(gab_props) + index;
+	psy_desc->num_properties = index;
 
 	adc_bat->psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg);
 	if (IS_ERR(adc_bat->psy)) {
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 66e9bb053629..18ab84e9c6b2 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -640,21 +640,20 @@ static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q,
 	unsigned long phys_aob = 0;
 
 	if (!q->use_cq)
-		goto out;
+		return 0;
 
 	if (!q->aobs[bufnr]) {
 		struct qaob *aob = qdio_allocate_aob();
 		q->aobs[bufnr] = aob;
 	}
 	if (q->aobs[bufnr]) {
-		q->sbal_state[bufnr].flags = QDIO_OUTBUF_STATE_FLAG_NONE;
 		q->sbal_state[bufnr].aob = q->aobs[bufnr];
 		q->aobs[bufnr]->user1 = (u64) q->sbal_state[bufnr].user;
 		phys_aob = virt_to_phys(q->aobs[bufnr]);
 		WARN_ON_ONCE(phys_aob & 0xFF);
 	}
 
-out:
+	q->sbal_state[bufnr].flags = 0;
 	return phys_aob;
 }
 
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index dcf36537a767..cc3994d4e7bc 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -755,9 +755,9 @@ int fcoe_ctlr_els_send(struct fcoe_ctlr *fip, struct fc_lport *lport,
 	case ELS_LOGO:
 		if (fip->mode == FIP_MODE_VN2VN) {
 			if (fip->state != FIP_ST_VNMP_UP)
-				return -EINVAL;
+				goto drop;
 			if (ntoh24(fh->fh_d_id) == FC_FID_FLOGI)
-				return -EINVAL;
+				goto drop;
 		} else {
 			if (fip->state != FIP_ST_ENABLED)
 				return 0;
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 97aeaddd600d..e3ffd244603e 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1935,6 +1935,7 @@ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
 		FC_RPORT_DBG(rdata, "Received LOGO request while in state %s\n",
 			     fc_rport_state(rdata));
 
+		rdata->flags &= ~FC_RP_STARTED;
 		fc_rport_enter_delete(rdata, RPORT_EV_STOP);
 		mutex_unlock(&rdata->rp_mutex);
 		kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy);
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index c2b682916337..cc8f2a7c2463 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -283,11 +283,11 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
 		 */
 		if (opcode != ISCSI_OP_SCSI_DATA_OUT) {
 			iscsi_conn_printk(KERN_INFO, conn,
-					  "task [op %x/%x itt "
+					  "task [op %x itt "
 					  "0x%x/0x%x] "
 					  "rejected.\n",
-					  task->hdr->opcode, opcode,
-					  task->itt, task->hdr_itt);
+					  opcode, task->itt,
+					  task->hdr_itt);
 			return -EACCES;
 		}
 		/*
@@ -296,10 +296,10 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
 		 */
 		if (conn->session->fast_abort) {
 			iscsi_conn_printk(KERN_INFO, conn,
-					  "task [op %x/%x itt "
+					  "task [op %x itt "
 					  "0x%x/0x%x] fast abort.\n",
-					  task->hdr->opcode, opcode,
-					  task->itt, task->hdr_itt);
+					  opcode, task->itt,
+					  task->hdr_itt);
 			return -EACCES;
 		}
 		break;
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 3a6f557ec128..56b65b85b121 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -709,8 +709,24 @@ static ssize_t
 sdev_store_delete(struct device *dev, struct device_attribute *attr,
 		  const char *buf, size_t count)
 {
-	if (device_remove_file_self(dev, attr))
-		scsi_remove_device(to_scsi_device(dev));
+	struct kernfs_node *kn;
+
+	kn = sysfs_break_active_protection(&dev->kobj, &attr->attr);
+	WARN_ON_ONCE(!kn);
+	/*
+	 * Concurrent writes into the "delete" sysfs attribute may trigger
+	 * concurrent calls to device_remove_file() and scsi_remove_device().
+	 * device_remove_file() handles concurrent removal calls by
+	 * serializing these and by ignoring the second and later removal
+	 * attempts.  Concurrent calls of scsi_remove_device() are
+	 * serialized. The second and later calls of scsi_remove_device() are
+	 * ignored because the first call of that function changes the device
+	 * state into SDEV_DEL.
+	 */
+	device_remove_file(dev, attr);
+	scsi_remove_device(to_scsi_device(dev));
+	if (kn)
+		sysfs_unbreak_active_protection(kn);
 	return count;
 };
 static DEVICE_ATTR(delete, S_IWUSR, NULL, sdev_store_delete);
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 15ca09cd16f3..874e9f085326 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -564,9 +564,14 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
 	    (btstat == BTSTAT_SUCCESS ||
 	     btstat == BTSTAT_LINKED_COMMAND_COMPLETED ||
 	     btstat == BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG)) {
-		cmd->result = (DID_OK << 16) | sdstat;
-		if (sdstat == SAM_STAT_CHECK_CONDITION && cmd->sense_buffer)
-			cmd->result |= (DRIVER_SENSE << 24);
+		if (sdstat == SAM_STAT_COMMAND_TERMINATED) {
+			cmd->result = (DID_RESET << 16);
+		} else {
+			cmd->result = (DID_OK << 16) | sdstat;
+			if (sdstat == SAM_STAT_CHECK_CONDITION &&
+			    cmd->sense_buffer)
+				cmd->result |= (DRIVER_SENSE << 24);
+		}
 	} else
 		switch (btstat) {
 		case BTSTAT_SUCCESS:
diff --git a/drivers/staging/android/ion/ion-ioctl.c b/drivers/staging/android/ion/ion-ioctl.c
index 2b700e8455c6..e3596855a703 100644
--- a/drivers/staging/android/ion/ion-ioctl.c
+++ b/drivers/staging/android/ion/ion-ioctl.c
@@ -128,11 +128,15 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	{
 		struct ion_handle *handle;
 
-		handle = ion_handle_get_by_id(client, data.handle.handle);
-		if (IS_ERR(handle))
+		mutex_lock(&client->lock);
+		handle = ion_handle_get_by_id_nolock(client, data.handle.handle);
+		if (IS_ERR(handle)) {
+			mutex_unlock(&client->lock);
 			return PTR_ERR(handle);
-		data.fd.fd = ion_share_dma_buf_fd(client, handle);
-		ion_handle_put(handle);
+		}
+		data.fd.fd = ion_share_dma_buf_fd_nolock(client, handle);
+		ion_handle_put_nolock(handle);
+		mutex_unlock(&client->lock);
 		if (data.fd.fd < 0)
 			ret = data.fd.fd;
 		break;
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 6f9974cb0e15..806e9b30b9dc 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -15,6 +15,7 @@
  *
  */
 
+#include <linux/atomic.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/file.h>
@@ -305,6 +306,16 @@ static void ion_handle_get(struct ion_handle *handle)
 	kref_get(&handle->ref);
 }
 
+/* Must hold the client lock */
+static struct ion_handle *ion_handle_get_check_overflow(
+					struct ion_handle *handle)
+{
+	if (atomic_read(&handle->ref.refcount) + 1 == 0)
+		return ERR_PTR(-EOVERFLOW);
+	ion_handle_get(handle);
+	return handle;
+}
+
 int ion_handle_put_nolock(struct ion_handle *handle)
 {
 	return kref_put(&handle->ref, ion_handle_destroy);
@@ -347,21 +358,9 @@ struct ion_handle *ion_handle_get_by_id_nolock(struct ion_client *client,
 
 	handle = idr_find(&client->idr, id);
 	if (handle)
-		ion_handle_get(handle);
-
-	return handle ? handle : ERR_PTR(-EINVAL);
-}
-
-struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
-					       int id)
-{
-	struct ion_handle *handle;
+		return ion_handle_get_check_overflow(handle);
 
-	mutex_lock(&client->lock);
-	handle = ion_handle_get_by_id_nolock(client, id);
-	mutex_unlock(&client->lock);
-
-	return handle;
+	return ERR_PTR(-EINVAL);
 }
 
 static bool ion_handle_validate(struct ion_client *client,
@@ -1029,24 +1028,28 @@ static struct dma_buf_ops dma_buf_ops = {
 	.kunmap = ion_dma_buf_kunmap,
 };
 
-struct dma_buf *ion_share_dma_buf(struct ion_client *client,
-				  struct ion_handle *handle)
+static struct dma_buf *__ion_share_dma_buf(struct ion_client *client,
+					   struct ion_handle *handle,
+					   bool lock_client)
 {
 	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
 	struct ion_buffer *buffer;
 	struct dma_buf *dmabuf;
 	bool valid_handle;
 
-	mutex_lock(&client->lock);
+	if (lock_client)
+		mutex_lock(&client->lock);
 	valid_handle = ion_handle_validate(client, handle);
 	if (!valid_handle) {
 		WARN(1, "%s: invalid handle passed to share.\n", __func__);
-		mutex_unlock(&client->lock);
+		if (lock_client)
+			mutex_unlock(&client->lock);
 		return ERR_PTR(-EINVAL);
 	}
 	buffer = handle->buffer;
 	ion_buffer_get(buffer);
-	mutex_unlock(&client->lock);
+	if (lock_client)
+		mutex_unlock(&client->lock);
 
 	exp_info.ops = &dma_buf_ops;
 	exp_info.size = buffer->size;
@@ -1061,14 +1064,21 @@ struct dma_buf *ion_share_dma_buf(struct ion_client *client,
 
 	return dmabuf;
 }
+
+struct dma_buf *ion_share_dma_buf(struct ion_client *client,
+				  struct ion_handle *handle)
+{
+	return __ion_share_dma_buf(client, handle, true);
+}
 EXPORT_SYMBOL(ion_share_dma_buf);
 
-int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle)
+static int __ion_share_dma_buf_fd(struct ion_client *client,
+				  struct ion_handle *handle, bool lock_client)
 {
 	struct dma_buf *dmabuf;
 	int fd;
 
-	dmabuf = ion_share_dma_buf(client, handle);
+	dmabuf = __ion_share_dma_buf(client, handle, lock_client);
 	if (IS_ERR(dmabuf))
 		return PTR_ERR(dmabuf);
 
@@ -1078,8 +1088,19 @@ int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle)
 
 	return fd;
 }
+
+int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle)
+{
+	return __ion_share_dma_buf_fd(client, handle, true);
+}
 EXPORT_SYMBOL(ion_share_dma_buf_fd);
 
+int ion_share_dma_buf_fd_nolock(struct ion_client *client,
+				struct ion_handle *handle)
+{
+	return __ion_share_dma_buf_fd(client, handle, false);
+}
+
 struct ion_handle *ion_import_dma_buf(struct ion_client *client,
 				      struct dma_buf *dmabuf)
 {
@@ -1100,7 +1121,7 @@ struct ion_handle *ion_import_dma_buf(struct ion_client *client,
 	/* if a handle exists for this buffer just take a reference to it */
 	handle = ion_handle_lookup(client, buffer);
 	if (!IS_ERR(handle)) {
-		ion_handle_get(handle);
+		handle = ion_handle_get_check_overflow(handle);
 		mutex_unlock(&client->lock);
 		goto end;
 	}
diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h
index 3c3b3245275d..760e41885448 100644
--- a/drivers/staging/android/ion/ion_priv.h
+++ b/drivers/staging/android/ion/ion_priv.h
@@ -463,11 +463,11 @@ void ion_free_nolock(struct ion_client *client, struct ion_handle *handle);
 
 int ion_handle_put_nolock(struct ion_handle *handle);
 
-struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
-						int id);
-
 int ion_handle_put(struct ion_handle *handle);
 
 int ion_query_heaps(struct ion_client *client, struct ion_heap_query *query);
 
+int ion_share_dma_buf_fd_nolock(struct ion_client *client,
+				struct ion_handle *handle);
+
 #endif /* _ION_PRIV_H */
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index c16927ac8eb0..395c7a2244ff 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -11,7 +11,6 @@
  * (at your option) any later version.
  */
 
-#include <asm/cacheflush.h>
 #include <linux/clk.h>
 #include <linux/mm.h>
 #include <linux/pagemap.h>
@@ -24,6 +23,8 @@
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-mc.h>
 
+#include <asm/cacheflush.h>
+
 #include "iss_video.h"
 #include "iss.h"
 
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 9ccd5da8f204..d2f82aaf6a85 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -333,8 +333,7 @@ static int iscsi_login_zero_tsih_s1(
 		pr_err("idr_alloc() for sess_idr failed\n");
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
-		kfree(sess);
-		return -ENOMEM;
+		goto free_sess;
 	}
 
 	sess->creation_time = get_jiffies_64();
@@ -350,20 +349,28 @@ static int iscsi_login_zero_tsih_s1(
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
 		pr_err("Unable to allocate memory for"
 				" struct iscsi_sess_ops.\n");
-		kfree(sess);
-		return -ENOMEM;
+		goto remove_idr;
 	}
 
 	sess->se_sess = transport_init_session(TARGET_PROT_NORMAL);
 	if (IS_ERR(sess->se_sess)) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
-		kfree(sess->sess_ops);
-		kfree(sess);
-		return -ENOMEM;
+		goto free_ops;
 	}
 
 	return 0;
+
+free_ops:
+	kfree(sess->sess_ops);
+remove_idr:
+	spin_lock_bh(&sess_idr_lock);
+	idr_remove(&sess_idr, sess->session_index);
+	spin_unlock_bh(&sess_idr_lock);
+free_sess:
+	kfree(sess);
+	conn->sess = NULL;
+	return -ENOMEM;
 }
 
 static int iscsi_login_zero_tsih_s2(
@@ -1152,13 +1159,13 @@ void iscsi_target_login_sess_out(struct iscsi_conn *conn,
 				   ISCSI_LOGIN_STATUS_INIT_ERR);
 	if (!zero_tsih || !conn->sess)
 		goto old_sess_out;
-	if (conn->sess->se_sess)
-		transport_free_session(conn->sess->se_sess);
-	if (conn->sess->session_index != 0) {
-		spin_lock_bh(&sess_idr_lock);
-		idr_remove(&sess_idr, conn->sess->session_index);
-		spin_unlock_bh(&sess_idr_lock);
-	}
+
+	transport_free_session(conn->sess->se_sess);
+
+	spin_lock_bh(&sess_idr_lock);
+	idr_remove(&sess_idr, conn->sess->session_index);
+	spin_unlock_bh(&sess_idr_lock);
+
 	kfree(conn->sess->sess_ops);
 	kfree(conn->sess);
 	conn->sess = NULL;
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 5474b5187be0..f4bd08cfac11 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -929,14 +929,14 @@ static struct usb_descriptor_header *hs_audio_desc[] = {
 };
 
 struct cntrl_cur_lay3 {
-	__u32	dCUR;
+	__le32	dCUR;
 };
 
 struct cntrl_range_lay3 {
-	__u16	wNumSubRanges;
-	__u32	dMIN;
-	__u32	dMAX;
-	__u32	dRES;
+	__le16	wNumSubRanges;
+	__le32	dMIN;
+	__le32	dMAX;
+	__le32	dRES;
 } __packed;
 
 static inline void
@@ -1285,9 +1285,9 @@ in_rq_cur(struct usb_function *fn, const struct usb_ctrlrequest *cr)
 		memset(&c, 0, sizeof(struct cntrl_cur_lay3));
 
 		if (entity_id == USB_IN_CLK_ID)
-			c.dCUR = p_srate;
+			c.dCUR = cpu_to_le32(p_srate);
 		else if (entity_id == USB_OUT_CLK_ID)
-			c.dCUR = c_srate;
+			c.dCUR = cpu_to_le32(c_srate);
 
 		value = min_t(unsigned, w_length, sizeof c);
 		memcpy(req->buf, &c, value);
@@ -1325,15 +1325,15 @@ in_rq_range(struct usb_function *fn, const struct usb_ctrlrequest *cr)
 
 	if (control_selector == UAC2_CS_CONTROL_SAM_FREQ) {
 		if (entity_id == USB_IN_CLK_ID)
-			r.dMIN = p_srate;
+			r.dMIN = cpu_to_le32(p_srate);
 		else if (entity_id == USB_OUT_CLK_ID)
-			r.dMIN = c_srate;
+			r.dMIN = cpu_to_le32(c_srate);
 		else
 			return -EOPNOTSUPP;
 
 		r.dMAX = r.dMIN;
 		r.dRES = 0;
-		r.wNumSubRanges = 1;
+		r.wNumSubRanges = cpu_to_le16(1);
 
 		value = min_t(unsigned, w_length, sizeof r);
 		memcpy(req->buf, &r, value);
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index f2c8862093a2..230e3248f386 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -835,11 +835,11 @@ static void init_controller(struct r8a66597 *r8a66597)
 
 		r8a66597_bset(r8a66597, XCKE, SYSCFG0);
 
-		msleep(3);
+		mdelay(3);
 
 		r8a66597_bset(r8a66597, PLLC, SYSCFG0);
 
-		msleep(1);
+		mdelay(1);
 
 		r8a66597_bset(r8a66597, SCKE, SYSCFG0);
 
@@ -1193,7 +1193,7 @@ __acquires(r8a66597->lock)
 	r8a66597->ep0_req->length = 2;
 	/* AV: what happens if we get called again before that gets through? */
 	spin_unlock(&r8a66597->lock);
-	r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_KERNEL);
+	r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_ATOMIC);
 	spin_lock(&r8a66597->lock);
 }
 
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 94eb2923afed..85d031ce85c1 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -879,6 +879,7 @@ int usb_otg_start(struct platform_device *pdev)
 	if (pdata->init && pdata->init(pdev) != 0)
 		return -EINVAL;
 
+#ifdef CONFIG_PPC32
 	if (pdata->big_endian_mmio) {
 		_fsl_readl = _fsl_readl_be;
 		_fsl_writel = _fsl_writel_be;
@@ -886,6 +887,7 @@ int usb_otg_start(struct platform_device *pdev)
 		_fsl_readl = _fsl_readl_le;
 		_fsl_writel = _fsl_writel_le;
 	}
+#endif
 
 	/* request irq */
 	p_otg->irq = platform_get_irq(pdev, 0);
@@ -976,7 +978,7 @@ int usb_otg_start(struct platform_device *pdev)
 /*
  * state file in sysfs
  */
-static int show_fsl_usb2_otg_state(struct device *dev,
+static ssize_t show_fsl_usb2_otg_state(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
 	struct otg_fsm *fsm = &fsl_otg_dev->fsm;
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 41df8a27d7eb..2026885702a2 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -195,7 +195,6 @@ wait_for_old_object:
 		pr_err("\n");
 		pr_err("Error: Unexpected object collision\n");
 		cachefiles_printk_object(object, xobject);
-		BUG();
 	}
 	atomic_inc(&xobject->usage);
 	write_unlock(&cache->active_lock);
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index afbdc418966d..5e3bc9de7a16 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -27,6 +27,7 @@ static int cachefiles_read_waiter(wait_queue_t *wait, unsigned mode,
 	struct cachefiles_one_read *monitor =
 		container_of(wait, struct cachefiles_one_read, monitor);
 	struct cachefiles_object *object;
+	struct fscache_retrieval *op = monitor->op;
 	struct wait_bit_key *key = _key;
 	struct page *page = wait->private;
 
@@ -51,16 +52,22 @@ static int cachefiles_read_waiter(wait_queue_t *wait, unsigned mode,
 	list_del(&wait->task_list);
 
 	/* move onto the action list and queue for FS-Cache thread pool */
-	ASSERT(monitor->op);
+	ASSERT(op);
 
-	object = container_of(monitor->op->op.object,
-			      struct cachefiles_object, fscache);
+	/* We need to temporarily bump the usage count as we don't own a ref
+	 * here otherwise cachefiles_read_copier() may free the op between the
+	 * monitor being enqueued on the op->to_do list and the op getting
+	 * enqueued on the work queue.
+	 */
+	fscache_get_retrieval(op);
 
+	object = container_of(op->op.object, struct cachefiles_object, fscache);
 	spin_lock(&object->work_lock);
-	list_add_tail(&monitor->op_link, &monitor->op->to_do);
+	list_add_tail(&monitor->op_link, &op->to_do);
 	spin_unlock(&object->work_lock);
 
-	fscache_enqueue_retrieval(monitor->op);
+	fscache_enqueue_retrieval(op);
+	fscache_put_retrieval(op);
 	return 0;
 }
 
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 3d03e48a9213..ad8bd96093f7 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -123,25 +123,41 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
 	seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
 	seq_printf(m, "Features:");
 #ifdef CONFIG_CIFS_DFS_UPCALL
-	seq_printf(m, " dfs");
+	seq_printf(m, " DFS");
 #endif
 #ifdef CONFIG_CIFS_FSCACHE
-	seq_printf(m, " fscache");
+	seq_printf(m, ",FSCACHE");
+#endif
+#ifdef CONFIG_CIFS_SMB_DIRECT
+	seq_printf(m, ",SMB_DIRECT");
+#endif
+#ifdef CONFIG_CIFS_STATS2
+	seq_printf(m, ",STATS2");
+#elif defined(CONFIG_CIFS_STATS)
+	seq_printf(m, ",STATS");
+#endif
+#ifdef CONFIG_CIFS_DEBUG2
+	seq_printf(m, ",DEBUG2");
+#elif defined(CONFIG_CIFS_DEBUG)
+	seq_printf(m, ",DEBUG");
+#endif
+#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
+	seq_printf(m, ",ALLOW_INSECURE_LEGACY");
 #endif
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-	seq_printf(m, " lanman");
+	seq_printf(m, ",WEAK_PW_HASH");
 #endif
 #ifdef CONFIG_CIFS_POSIX
-	seq_printf(m, " posix");
+	seq_printf(m, ",CIFS_POSIX");
 #endif
 #ifdef CONFIG_CIFS_UPCALL
-	seq_printf(m, " spnego");
+	seq_printf(m, ",UPCALL(SPNEGO)");
 #endif
 #ifdef CONFIG_CIFS_XATTR
-	seq_printf(m, " xattr");
+	seq_printf(m, ",XATTR");
 #endif
 #ifdef CONFIG_CIFS_ACL
-	seq_printf(m, " acl");
+	seq_printf(m, ",ACL");
 #endif
 	seq_putc(m, '\n');
 	seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 24c19eb94fa3..a012f70bba5c 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1116,6 +1116,8 @@ cifs_set_file_info(struct inode *inode, struct iattr *attrs, unsigned int xid,
 	if (!server->ops->set_file_info)
 		return -ENOSYS;
 
+	info_buf.Pad = 0;
+
 	if (attrs->ia_valid & ATTR_ATIME) {
 		set_time = true;
 		info_buf.LastAccessTime =
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index d031af8d3d4d..38d26cbcad07 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -419,7 +419,7 @@ smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 	struct cifs_io_parms io_parms;
 	int buf_type = CIFS_NO_BUFFER;
 	__le16 *utf16_path;
-	__u8 oplock = SMB2_OPLOCK_LEVEL_II;
+	__u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
 	struct smb2_file_all_info *pfile_info = NULL;
 
 	oparms.tcon = tcon;
@@ -481,7 +481,7 @@ smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 	struct cifs_io_parms io_parms;
 	int create_options = CREATE_NOT_DIR;
 	__le16 *utf16_path;
-	__u8 oplock = SMB2_OPLOCK_LEVEL_EXCLUSIVE;
+	__u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
 	struct kvec iov[2];
 
 	if (backup_cred(cifs_sb))
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index c3db2a882aee..bb208076cb71 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -398,6 +398,12 @@ int build_ntlmssp_auth_blob(unsigned char **pbuffer,
 		goto setup_ntlmv2_ret;
 	}
 	*pbuffer = kmalloc(size_of_ntlmssp_blob(ses), GFP_KERNEL);
+	if (!*pbuffer) {
+		rc = -ENOMEM;
+		cifs_dbg(VFS, "Error %d during NTLMSSP allocation\n", rc);
+		*buflen = 0;
+		goto setup_ntlmv2_ret;
+	}
 	sec_blob = (AUTHENTICATE_MESSAGE *)*pbuffer;
 
 	memcpy(sec_blob->Signature, NTLMSSP_SIGNATURE, 8);
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 1238cd3552f9..0267d8cbc996 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -267,7 +267,7 @@ smb2_set_file_info(struct inode *inode, const char *full_path,
 	int rc;
 
 	if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
-	    (buf->LastWriteTime == 0) && (buf->ChangeTime) &&
+	    (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) &&
 	    (buf->Attributes == 0))
 		return 0; /* would be a no op, no sense sending this */
 
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 812e4884c392..68622f1e706b 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -894,6 +894,13 @@ smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon,
 
 }
 
+/* GMT Token is @GMT-YYYY.MM.DD-HH.MM.SS Unicode which is 48 bytes + null */
+#define GMT_TOKEN_SIZE 50
+
+/*
+ * Input buffer contains (empty) struct smb_snapshot array with size filled in
+ * For output see struct SRV_SNAPSHOT_ARRAY in MS-SMB2 section 2.2.32.2
+ */
 static int
 smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon,
 		   struct cifsFileInfo *cfile, void __user *ioc_buf)
@@ -922,14 +929,27 @@ smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon,
 			kfree(retbuf);
 			return rc;
 		}
-		if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) {
-			rc = -ERANGE;
-			kfree(retbuf);
-			return rc;
-		}
 
-		if (ret_data_len > snapshot_in.snapshot_array_size)
-			ret_data_len = snapshot_in.snapshot_array_size;
+		/*
+		 * Check for min size, ie not large enough to fit even one GMT
+		 * token (snapshot).  On the first ioctl some users may pass in
+		 * smaller size (or zero) to simply get the size of the array
+		 * so the user space caller can allocate sufficient memory
+		 * and retry the ioctl again with larger array size sufficient
+		 * to hold all of the snapshot GMT tokens on the second try.
+		 */
+		if (snapshot_in.snapshot_array_size < GMT_TOKEN_SIZE)
+			ret_data_len = sizeof(struct smb_snapshot_array);
+
+		/*
+		 * We return struct SRV_SNAPSHOT_ARRAY, followed by
+		 * the snapshot array (of 50 byte GMT tokens) each
+		 * representing an available previous version of the data
+		 */
+		if (ret_data_len > (snapshot_in.snapshot_array_size +
+					sizeof(struct smb_snapshot_array)))
+			ret_data_len = snapshot_in.snapshot_array_size +
+					sizeof(struct smb_snapshot_array);
 
 		if (copy_to_user(ioc_buf, retbuf, ret_data_len))
 			rc = -EFAULT;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 248c43b63f13..a225a21d04ad 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1415,6 +1415,7 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
 			goto cleanup_and_exit;
 		dxtrace(printk(KERN_DEBUG "ext4_find_entry: dx failed, "
 			       "falling back\n"));
+		ret = NULL;
 	}
 	nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb);
 	if (!nblocks) {
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 5dc655e410b4..54942d60e72a 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -277,8 +277,12 @@ static ssize_t ext4_attr_show(struct kobject *kobj,
 	case attr_pointer_ui:
 		if (!ptr)
 			return 0;
-		return snprintf(buf, PAGE_SIZE, "%u\n",
-				*((unsigned int *) ptr));
+		if (a->attr_ptr == ptr_ext4_super_block_offset)
+			return snprintf(buf, PAGE_SIZE, "%u\n",
+					le32_to_cpup(ptr));
+		else
+			return snprintf(buf, PAGE_SIZE, "%u\n",
+					*((unsigned int *) ptr));
 	case attr_pointer_atomic:
 		if (!ptr)
 			return 0;
@@ -311,7 +315,10 @@ static ssize_t ext4_attr_store(struct kobject *kobj,
 		ret = kstrtoul(skip_spaces(buf), 0, &t);
 		if (ret)
 			return ret;
-		*((unsigned int *) ptr) = t;
+		if (a->attr_ptr == ptr_ext4_super_block_offset)
+			*((__le32 *) ptr) = cpu_to_le32(t);
+		else
+			*((unsigned int *) ptr) = t;
 		return len;
 	case attr_inode_readahead:
 		return inode_readahead_blks_store(a, sbi, buf, len);
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 3fadfabcac39..fdcbe0f2814f 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -184,6 +184,8 @@ ext4_xattr_check_names(struct ext4_xattr_entry *entry, void *end,
 		struct ext4_xattr_entry *next = EXT4_XATTR_NEXT(e);
 		if ((void *)next >= end)
 			return -EFSCORRUPTED;
+		if (strnlen(e->e_name, e->e_name_len) != e->e_name_len)
+			return -EFSCORRUPTED;
 		e = next;
 	}
 
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index de67745e1cd7..77946d6f617d 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -66,7 +66,8 @@ void fscache_enqueue_operation(struct fscache_operation *op)
 	ASSERT(op->processor != NULL);
 	ASSERT(fscache_object_is_available(op->object));
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
-	ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
+	ASSERTIFCMP(op->state != FSCACHE_OP_ST_IN_PROGRESS,
+		    op->state, ==,  FSCACHE_OP_ST_CANCELLED);
 
 	fscache_stat(&fscache_n_op_enqueue);
 	switch (op->flags & FSCACHE_OP_TYPE) {
@@ -481,7 +482,8 @@ void fscache_put_operation(struct fscache_operation *op)
 	struct fscache_cache *cache;
 
 	_enter("{OBJ%x OP%x,%d}",
-	       op->object->debug_id, op->debug_id, atomic_read(&op->usage));
+	       op->object ? op->object->debug_id : 0,
+	       op->debug_id, atomic_read(&op->usage));
 
 	ASSERTCMP(atomic_read(&op->usage), >, 0);
 
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index f11792672977..c94bab6103f5 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -130,6 +130,16 @@ static bool fuse_block_alloc(struct fuse_conn *fc, bool for_background)
 	return !fc->initialized || (for_background && fc->blocked);
 }
 
+static void fuse_drop_waiting(struct fuse_conn *fc)
+{
+	if (fc->connected) {
+		atomic_dec(&fc->num_waiting);
+	} else if (atomic_dec_and_test(&fc->num_waiting)) {
+		/* wake up aborters */
+		wake_up_all(&fc->blocked_waitq);
+	}
+}
+
 static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages,
 				       bool for_background)
 {
@@ -170,7 +180,7 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages,
 	return req;
 
  out:
-	atomic_dec(&fc->num_waiting);
+	fuse_drop_waiting(fc);
 	return ERR_PTR(err);
 }
 
@@ -277,7 +287,7 @@ void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
 
 		if (test_bit(FR_WAITING, &req->flags)) {
 			__clear_bit(FR_WAITING, &req->flags);
-			atomic_dec(&fc->num_waiting);
+			fuse_drop_waiting(fc);
 		}
 
 		if (req->stolen_file)
@@ -363,7 +373,7 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
 	struct fuse_iqueue *fiq = &fc->iq;
 
 	if (test_and_set_bit(FR_FINISHED, &req->flags))
-		return;
+		goto put_request;
 
 	spin_lock(&fiq->waitq.lock);
 	list_del_init(&req->intr_entry);
@@ -393,6 +403,7 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
 	wake_up(&req->waitq);
 	if (req->end)
 		req->end(fc, req);
+put_request:
 	fuse_put_request(fc, req);
 }
 
@@ -1935,11 +1946,14 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
 	if (!fud)
 		return -EPERM;
 
+	pipe_lock(pipe);
+
 	bufs = kmalloc(pipe->buffers * sizeof(struct pipe_buffer), GFP_KERNEL);
-	if (!bufs)
+	if (!bufs) {
+		pipe_unlock(pipe);
 		return -ENOMEM;
+	}
 
-	pipe_lock(pipe);
 	nbuf = 0;
 	rem = 0;
 	for (idx = 0; idx < pipe->nrbufs && rem < len; idx++)
@@ -2094,6 +2108,7 @@ void fuse_abort_conn(struct fuse_conn *fc)
 				set_bit(FR_ABORTED, &req->flags);
 				if (!test_bit(FR_LOCKED, &req->flags)) {
 					set_bit(FR_PRIVATE, &req->flags);
+					__fuse_get_request(req);
 					list_move(&req->list, &to_end1);
 				}
 				spin_unlock(&req->waitq.lock);
@@ -2120,7 +2135,6 @@ void fuse_abort_conn(struct fuse_conn *fc)
 
 		while (!list_empty(&to_end1)) {
 			req = list_first_entry(&to_end1, struct fuse_req, list);
-			__fuse_get_request(req);
 			list_del_init(&req->list);
 			request_end(fc, req);
 		}
@@ -2131,6 +2145,11 @@ void fuse_abort_conn(struct fuse_conn *fc)
 }
 EXPORT_SYMBOL_GPL(fuse_abort_conn);
 
+void fuse_wait_aborted(struct fuse_conn *fc)
+{
+	wait_event(fc->blocked_waitq, atomic_read(&fc->num_waiting) == 0);
+}
+
 int fuse_dev_release(struct inode *inode, struct file *file)
 {
 	struct fuse_dev *fud = fuse_get_dev(file);
@@ -2138,9 +2157,15 @@ int fuse_dev_release(struct inode *inode, struct file *file)
 	if (fud) {
 		struct fuse_conn *fc = fud->fc;
 		struct fuse_pqueue *fpq = &fud->pq;
+		LIST_HEAD(to_end);
 
+		spin_lock(&fpq->lock);
 		WARN_ON(!list_empty(&fpq->io));
-		end_requests(fc, &fpq->processing);
+		list_splice_init(&fpq->processing, &to_end);
+		spin_unlock(&fpq->lock);
+
+		end_requests(fc, &to_end);
+
 		/* Are we the last open device? */
 		if (atomic_dec_and_test(&fc->dev_count)) {
 			WARN_ON(fc->iq.fasync != NULL);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index cca8dd3bda09..60dd2bc10776 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -355,11 +355,12 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 	struct inode *inode;
 	struct dentry *newent;
 	bool outarg_valid = true;
+	bool locked;
 
-	fuse_lock_inode(dir);
+	locked = fuse_lock_inode(dir);
 	err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
 			       &outarg, &inode);
-	fuse_unlock_inode(dir);
+	fuse_unlock_inode(dir, locked);
 	if (err == -ENOENT) {
 		outarg_valid = false;
 		err = 0;
@@ -1336,6 +1337,7 @@ static int fuse_readdir(struct file *file, struct dir_context *ctx)
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_req *req;
 	u64 attr_version = 0;
+	bool locked;
 
 	if (is_bad_inode(inode))
 		return -EIO;
@@ -1363,9 +1365,9 @@ static int fuse_readdir(struct file *file, struct dir_context *ctx)
 		fuse_read_fill(req, file, ctx->pos, PAGE_SIZE,
 			       FUSE_READDIR);
 	}
-	fuse_lock_inode(inode);
+	locked = fuse_lock_inode(inode);
 	fuse_request_send(fc, req);
-	fuse_unlock_inode(inode);
+	fuse_unlock_inode(inode, locked);
 	nbytes = req->out.args[0].size;
 	err = req->out.h.error;
 	fuse_put_request(fc, req);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 996aa23c409e..4408abf6675b 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -868,6 +868,7 @@ static int fuse_readpages_fill(void *_data, struct page *page)
 	}
 
 	if (WARN_ON(req->num_pages >= req->max_pages)) {
+		unlock_page(page);
 		fuse_put_request(fc, req);
 		return -EIO;
 	}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 91307940c8ac..1c905c7666de 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -854,6 +854,7 @@ void fuse_request_send_background_locked(struct fuse_conn *fc,
 
 /* Abort all requests */
 void fuse_abort_conn(struct fuse_conn *fc);
+void fuse_wait_aborted(struct fuse_conn *fc);
 
 /**
  * Invalidate inode attributes
@@ -967,8 +968,8 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
 
 void fuse_set_initialized(struct fuse_conn *fc);
 
-void fuse_unlock_inode(struct inode *inode);
-void fuse_lock_inode(struct inode *inode);
+void fuse_unlock_inode(struct inode *inode, bool locked);
+bool fuse_lock_inode(struct inode *inode);
 
 int fuse_setxattr(struct inode *inode, const char *name, const void *value,
 		  size_t size, int flags);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index f95e1d49b048..7a9b1069d267 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -356,15 +356,21 @@ int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid,
 	return 0;
 }
 
-void fuse_lock_inode(struct inode *inode)
+bool fuse_lock_inode(struct inode *inode)
 {
-	if (!get_fuse_conn(inode)->parallel_dirops)
+	bool locked = false;
+
+	if (!get_fuse_conn(inode)->parallel_dirops) {
 		mutex_lock(&get_fuse_inode(inode)->mutex);
+		locked = true;
+	}
+
+	return locked;
 }
 
-void fuse_unlock_inode(struct inode *inode)
+void fuse_unlock_inode(struct inode *inode, bool locked)
 {
-	if (!get_fuse_conn(inode)->parallel_dirops)
+	if (locked)
 		mutex_unlock(&get_fuse_inode(inode)->mutex);
 }
 
@@ -396,9 +402,6 @@ static void fuse_put_super(struct super_block *sb)
 {
 	struct fuse_conn *fc = get_fuse_conn_super(sb);
 
-	fuse_send_destroy(fc);
-
-	fuse_abort_conn(fc);
 	mutex_lock(&fuse_mutex);
 	list_del(&fc->entry);
 	fuse_ctl_remove_conn(fc);
@@ -1198,16 +1201,25 @@ static struct dentry *fuse_mount(struct file_system_type *fs_type,
 	return mount_nodev(fs_type, flags, raw_data, fuse_fill_super);
 }
 
-static void fuse_kill_sb_anon(struct super_block *sb)
+static void fuse_sb_destroy(struct super_block *sb)
 {
 	struct fuse_conn *fc = get_fuse_conn_super(sb);
 
 	if (fc) {
+		fuse_send_destroy(fc);
+
+		fuse_abort_conn(fc);
+		fuse_wait_aborted(fc);
+
 		down_write(&fc->killsb);
 		fc->sb = NULL;
 		up_write(&fc->killsb);
 	}
+}
 
+static void fuse_kill_sb_anon(struct super_block *sb)
+{
+	fuse_sb_destroy(sb);
 	kill_anon_super(sb);
 }
 
@@ -1230,14 +1242,7 @@ static struct dentry *fuse_mount_blk(struct file_system_type *fs_type,
 
 static void fuse_kill_sb_blk(struct super_block *sb)
 {
-	struct fuse_conn *fc = get_fuse_conn_super(sb);
-
-	if (fc) {
-		down_write(&fc->killsb);
-		fc->sb = NULL;
-		up_write(&fc->killsb);
-	}
-
+	fuse_sb_destroy(sb);
 	kill_block_super(sb);
 }
 
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c
index fcff2e0487fe..f1c1430ae721 100644
--- a/fs/squashfs/file.c
+++ b/fs/squashfs/file.c
@@ -374,13 +374,29 @@ static int read_blocklist(struct inode *inode, int index, u64 *block)
 	return squashfs_block_size(size);
 }
 
+void squashfs_fill_page(struct page *page, struct squashfs_cache_entry *buffer, int offset, int avail)
+{
+	int copied;
+	void *pageaddr;
+
+	pageaddr = kmap_atomic(page);
+	copied = squashfs_copy_data(pageaddr, buffer, offset, avail);
+	memset(pageaddr + copied, 0, PAGE_SIZE - copied);
+	kunmap_atomic(pageaddr);
+
+	flush_dcache_page(page);
+	if (copied == avail)
+		SetPageUptodate(page);
+	else
+		SetPageError(page);
+}
+
 /* Copy data into page cache  */
 void squashfs_copy_cache(struct page *page, struct squashfs_cache_entry *buffer,
 	int bytes, int offset)
 {
 	struct inode *inode = page->mapping->host;
 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
-	void *pageaddr;
 	int i, mask = (1 << (msblk->block_log - PAGE_SHIFT)) - 1;
 	int start_index = page->index & ~mask, end_index = start_index | mask;
 
@@ -406,12 +422,7 @@ void squashfs_copy_cache(struct page *page, struct squashfs_cache_entry *buffer,
 		if (PageUptodate(push_page))
 			goto skip_page;
 
-		pageaddr = kmap_atomic(push_page);
-		squashfs_copy_data(pageaddr, buffer, offset, avail);
-		memset(pageaddr + avail, 0, PAGE_SIZE - avail);
-		kunmap_atomic(pageaddr);
-		flush_dcache_page(push_page);
-		SetPageUptodate(push_page);
+		squashfs_fill_page(push_page, buffer, offset, avail);
 skip_page:
 		unlock_page(push_page);
 		if (i != page->index)
@@ -420,10 +431,9 @@ skip_page:
 }
 
 /* Read datablock stored packed inside a fragment (tail-end packed block) */
-static int squashfs_readpage_fragment(struct page *page)
+static int squashfs_readpage_fragment(struct page *page, int expected)
 {
 	struct inode *inode = page->mapping->host;
-	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
 	struct squashfs_cache_entry *buffer = squashfs_get_fragment(inode->i_sb,
 		squashfs_i(inode)->fragment_block,
 		squashfs_i(inode)->fragment_size);
@@ -434,23 +444,16 @@ static int squashfs_readpage_fragment(struct page *page)
 			squashfs_i(inode)->fragment_block,
 			squashfs_i(inode)->fragment_size);
 	else
-		squashfs_copy_cache(page, buffer, i_size_read(inode) &
-			(msblk->block_size - 1),
+		squashfs_copy_cache(page, buffer, expected,
 			squashfs_i(inode)->fragment_offset);
 
 	squashfs_cache_put(buffer);
 	return res;
 }
 
-static int squashfs_readpage_sparse(struct page *page, int index, int file_end)
+static int squashfs_readpage_sparse(struct page *page, int expected)
 {
-	struct inode *inode = page->mapping->host;
-	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
-	int bytes = index == file_end ?
-			(i_size_read(inode) & (msblk->block_size - 1)) :
-			 msblk->block_size;
-
-	squashfs_copy_cache(page, NULL, bytes, 0);
+	squashfs_copy_cache(page, NULL, expected, 0);
 	return 0;
 }
 
@@ -460,6 +463,9 @@ static int squashfs_readpage(struct file *file, struct page *page)
 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
 	int index = page->index >> (msblk->block_log - PAGE_SHIFT);
 	int file_end = i_size_read(inode) >> msblk->block_log;
+	int expected = index == file_end ?
+			(i_size_read(inode) & (msblk->block_size - 1)) :
+			 msblk->block_size;
 	int res;
 	void *pageaddr;
 
@@ -478,11 +484,11 @@ static int squashfs_readpage(struct file *file, struct page *page)
 			goto error_out;
 
 		if (bsize == 0)
-			res = squashfs_readpage_sparse(page, index, file_end);
+			res = squashfs_readpage_sparse(page, expected);
 		else
-			res = squashfs_readpage_block(page, block, bsize);
+			res = squashfs_readpage_block(page, block, bsize, expected);
 	} else
-		res = squashfs_readpage_fragment(page);
+		res = squashfs_readpage_fragment(page, expected);
 
 	if (!res)
 		return 0;
diff --git a/fs/squashfs/file_cache.c b/fs/squashfs/file_cache.c
index f2310d2a2019..a9ba8d96776a 100644
--- a/fs/squashfs/file_cache.c
+++ b/fs/squashfs/file_cache.c
@@ -20,7 +20,7 @@
 #include "squashfs.h"
 
 /* Read separately compressed datablock and memcopy into page cache */
-int squashfs_readpage_block(struct page *page, u64 block, int bsize)
+int squashfs_readpage_block(struct page *page, u64 block, int bsize, int expected)
 {
 	struct inode *i = page->mapping->host;
 	struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
@@ -31,7 +31,7 @@ int squashfs_readpage_block(struct page *page, u64 block, int bsize)
 		ERROR("Unable to read page, block %llx, size %x\n", block,
 			bsize);
 	else
-		squashfs_copy_cache(page, buffer, buffer->length, 0);
+		squashfs_copy_cache(page, buffer, expected, 0);
 
 	squashfs_cache_put(buffer);
 	return res;
diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c
index cb485d8e0e91..80db1b86a27c 100644
--- a/fs/squashfs/file_direct.c
+++ b/fs/squashfs/file_direct.c
@@ -21,10 +21,11 @@
 #include "page_actor.h"
 
 static int squashfs_read_cache(struct page *target_page, u64 block, int bsize,
-	int pages, struct page **page);
+	int pages, struct page **page, int bytes);
 
 /* Read separately compressed datablock directly into page cache */
-int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
+int squashfs_readpage_block(struct page *target_page, u64 block, int bsize,
+	int expected)
 
 {
 	struct inode *inode = target_page->mapping->host;
@@ -83,7 +84,7 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
 		 * using an intermediate buffer.
 		 */
 		res = squashfs_read_cache(target_page, block, bsize, pages,
-								page);
+							page, expected);
 		if (res < 0)
 			goto mark_errored;
 
@@ -95,6 +96,11 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
 	if (res < 0)
 		goto mark_errored;
 
+	if (res != expected) {
+		res = -EIO;
+		goto mark_errored;
+	}
+
 	/* Last page may have trailing bytes not filled */
 	bytes = res % PAGE_SIZE;
 	if (bytes) {
@@ -138,13 +144,12 @@ out:
 
 
 static int squashfs_read_cache(struct page *target_page, u64 block, int bsize,
-	int pages, struct page **page)
+	int pages, struct page **page, int bytes)
 {
 	struct inode *i = target_page->mapping->host;
 	struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
 						 block, bsize);
-	int bytes = buffer->length, res = buffer->error, n, offset = 0;
-	void *pageaddr;
+	int res = buffer->error, n, offset = 0;
 
 	if (res) {
 		ERROR("Unable to read page, block %llx, size %x\n", block,
@@ -159,12 +164,7 @@ static int squashfs_read_cache(struct page *target_page, u64 block, int bsize,
 		if (page[n] == NULL)
 			continue;
 
-		pageaddr = kmap_atomic(page[n]);
-		squashfs_copy_data(pageaddr, buffer, offset, avail);
-		memset(pageaddr + avail, 0, PAGE_SIZE - avail);
-		kunmap_atomic(pageaddr);
-		flush_dcache_page(page[n]);
-		SetPageUptodate(page[n]);
+		squashfs_fill_page(page[n], buffer, offset, avail);
 		unlock_page(page[n]);
 		if (page[n] != target_page)
 			put_page(page[n]);
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 887d6d270080..f89f8a74c6ce 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -67,11 +67,12 @@ extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
 				u64, u64, unsigned int);
 
 /* file.c */
+void squashfs_fill_page(struct page *, struct squashfs_cache_entry *, int, int);
 void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
 				int);
 
 /* file_xxx.c */
-extern int squashfs_readpage_block(struct page *, u64, int);
+extern int squashfs_readpage_block(struct page *, u64, int, int);
 
 /* id.c */
 extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 39c75a86c67f..666986b95c5d 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -407,6 +407,50 @@ int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
 }
 EXPORT_SYMBOL_GPL(sysfs_chmod_file);
 
+/**
+ * sysfs_break_active_protection - break "active" protection
+ * @kobj: The kernel object @attr is associated with.
+ * @attr: The attribute to break the "active" protection for.
+ *
+ * With sysfs, just like kernfs, deletion of an attribute is postponed until
+ * all active .show() and .store() callbacks have finished unless this function
+ * is called. Hence this function is useful in methods that implement self
+ * deletion.
+ */
+struct kernfs_node *sysfs_break_active_protection(struct kobject *kobj,
+						  const struct attribute *attr)
+{
+	struct kernfs_node *kn;
+
+	kobject_get(kobj);
+	kn = kernfs_find_and_get(kobj->sd, attr->name);
+	if (kn)
+		kernfs_break_active_protection(kn);
+	return kn;
+}
+EXPORT_SYMBOL_GPL(sysfs_break_active_protection);
+
+/**
+ * sysfs_unbreak_active_protection - restore "active" protection
+ * @kn: Pointer returned by sysfs_break_active_protection().
+ *
+ * Undo the effects of sysfs_break_active_protection(). Since this function
+ * calls kernfs_put() on the kernfs node that corresponds to the 'attr'
+ * argument passed to sysfs_break_active_protection() that attribute may have
+ * been removed between the sysfs_break_active_protection() and
+ * sysfs_unbreak_active_protection() calls, it is not safe to access @kn after
+ * this function has returned.
+ */
+void sysfs_unbreak_active_protection(struct kernfs_node *kn)
+{
+	struct kobject *kobj = kn->parent->priv;
+
+	kernfs_unbreak_active_protection(kn);
+	kernfs_put(kn);
+	kobject_put(kobj);
+}
+EXPORT_SYMBOL_GPL(sysfs_unbreak_active_protection);
+
 /**
  * sysfs_remove_file_ns - remove an object attribute with a custom ns tag
  * @kobj: object we're acting for
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 00a1f330f93a..d3c19f8c4564 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -238,6 +238,9 @@ int __must_check sysfs_create_files(struct kobject *kobj,
 				   const struct attribute **attr);
 int __must_check sysfs_chmod_file(struct kobject *kobj,
 				  const struct attribute *attr, umode_t mode);
+struct kernfs_node *sysfs_break_active_protection(struct kobject *kobj,
+						  const struct attribute *attr);
+void sysfs_unbreak_active_protection(struct kernfs_node *kn);
 void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
 			  const void *ns);
 bool sysfs_remove_file_self(struct kobject *kobj, const struct attribute *attr);
@@ -351,6 +354,17 @@ static inline int sysfs_chmod_file(struct kobject *kobj,
 	return 0;
 }
 
+static inline struct kernfs_node *
+sysfs_break_active_protection(struct kobject *kobj,
+			      const struct attribute *attr)
+{
+	return NULL;
+}
+
+static inline void sysfs_unbreak_active_protection(struct kernfs_node *kn)
+{
+}
+
 static inline void sysfs_remove_file_ns(struct kobject *kobj,
 					const struct attribute *attr,
 					const void *ns)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 69485183af79..b9e966bcdd20 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2441,7 +2441,7 @@ static int __init debugfs_kprobe_init(void)
 	if (!dir)
 		return -ENOMEM;
 
-	file = debugfs_create_file("list", 0444, dir, NULL,
+	file = debugfs_create_file("list", 0400, dir, NULL,
 				&debugfs_kprobes_operations);
 	if (!file)
 		goto error;
@@ -2451,7 +2451,7 @@ static int __init debugfs_kprobe_init(void)
 	if (!file)
 		goto error;
 
-	file = debugfs_create_file("blacklist", 0444, dir, NULL,
+	file = debugfs_create_file("blacklist", 0400, dir, NULL,
 				&debugfs_kprobe_blacklist_ops);
 	if (!file)
 		goto error;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 24d603d29512..7df6be31be36 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -345,7 +345,8 @@ static struct ctl_table kern_table[] = {
 		.data		= &sysctl_sched_time_avg,
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "sched_shares_window_ns",
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 349f4a8e3c4f..86a6b331b964 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4072,6 +4072,14 @@ static struct cftype mem_cgroup_legacy_files[] = {
 
 static DEFINE_IDR(mem_cgroup_idr);
 
+static void mem_cgroup_id_remove(struct mem_cgroup *memcg)
+{
+	if (memcg->id.id > 0) {
+		idr_remove(&mem_cgroup_idr, memcg->id.id);
+		memcg->id.id = 0;
+	}
+}
+
 static void mem_cgroup_id_get_many(struct mem_cgroup *memcg, unsigned int n)
 {
 	VM_BUG_ON(atomic_read(&memcg->id.ref) <= 0);
@@ -4082,8 +4090,7 @@ static void mem_cgroup_id_put_many(struct mem_cgroup *memcg, unsigned int n)
 {
 	VM_BUG_ON(atomic_read(&memcg->id.ref) < n);
 	if (atomic_sub_and_test(n, &memcg->id.ref)) {
-		idr_remove(&mem_cgroup_idr, memcg->id.id);
-		memcg->id.id = 0;
+		mem_cgroup_id_remove(memcg);
 
 		/* Memcg ID pins CSS */
 		css_put(&memcg->css);
@@ -4208,8 +4215,7 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
 	idr_replace(&mem_cgroup_idr, memcg, memcg->id.id);
 	return memcg;
 fail:
-	if (memcg->id.id > 0)
-		idr_remove(&mem_cgroup_idr, memcg->id.id);
+	mem_cgroup_id_remove(memcg);
 	__mem_cgroup_free(memcg);
 	return NULL;
 }
@@ -4268,6 +4274,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 
 	return &memcg->css;
 fail:
+	mem_cgroup_id_remove(memcg);
 	mem_cgroup_free(memcg);
 	return ERR_PTR(-ENOMEM);
 }
diff --git a/mm/memory.c b/mm/memory.c
index 88f8d6a2af05..0ff735601654 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3861,6 +3861,9 @@ int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
 		return -EINVAL;
 
 	maddr = ioremap_prot(phys_addr, PAGE_ALIGN(len + offset), prot);
+	if (!maddr)
+		return -ENOMEM;
+
 	if (write)
 		memcpy_toio(maddr + offset, buf, len);
 	else
diff --git a/mm/zswap.c b/mm/zswap.c
index ded051e3433d..c2b5435fe617 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1018,6 +1018,15 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset,
 			ret = -ENOMEM;
 			goto reject;
 		}
+
+		/* A second zswap_is_full() check after
+		 * zswap_shrink() to make sure it's now
+		 * under the max_pool_percent
+		 */
+		if (zswap_is_full()) {
+			ret = -ENOMEM;
+			goto reject;
+		}
 	}
 
 	/* allocate entry */
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index d730a0f68f46..a0443d40d677 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -131,8 +131,10 @@ static void caif_flow_cb(struct sk_buff *skb)
 	caifd = caif_get(skb->dev);
 
 	WARN_ON(caifd == NULL);
-	if (caifd == NULL)
+	if (!caifd) {
+		rcu_read_unlock();
 		return;
+	}
 
 	caifd_hold(caifd);
 	rcu_read_unlock();
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 972353cd1778..65a15889d432 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1523,9 +1523,17 @@ unsigned char *cipso_v4_optptr(const struct sk_buff *skb)
 	int taglen;
 
 	for (optlen = iph->ihl*4 - sizeof(struct iphdr); optlen > 0; ) {
-		if (optptr[0] == IPOPT_CIPSO)
+		switch (optptr[0]) {
+		case IPOPT_CIPSO:
 			return optptr;
-		taglen = optptr[1];
+		case IPOPT_END:
+			return NULL;
+		case IPOPT_NOOP:
+			taglen = 1;
+			break;
+		default:
+			taglen = optptr[1];
+		}
 		optlen -= taglen;
 		optptr += taglen;
 	}
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index beae93fd66d5..a5aeeb613fac 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -480,10 +480,6 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
 		goto tx_err_dst_release;
 	}
 
-	skb_scrub_packet(skb, !net_eq(t->net, dev_net(dev)));
-	skb_dst_set(skb, dst);
-	skb->dev = skb_dst(skb)->dev;
-
 	mtu = dst_mtu(dst);
 	if (!skb->ignore_df && skb->len > mtu) {
 		skb_dst(skb)->ops->update_pmtu(dst, NULL, skb, mtu);
@@ -498,9 +494,14 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
 				  htonl(mtu));
 		}
 
-		return -EMSGSIZE;
+		err = -EMSGSIZE;
+		goto tx_err_dst_release;
 	}
 
+	skb_scrub_packet(skb, !net_eq(t->net, dev_net(dev)));
+	skb_dst_set(skb, dst);
+	skb->dev = skb_dst(skb)->dev;
+
 	err = dst_output(t->net, skb->sk, skb);
 	if (net_xmit_eval(err) == 0) {
 		struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index a2756096b94a..ca7de02e0a6e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2061,7 +2061,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		if (!sta->uploaded)
 			continue;
 
-		if (sta->sdata->vif.type != NL80211_IFTYPE_AP)
+		if (sta->sdata->vif.type != NL80211_IFTYPE_AP &&
+		    sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
 			continue;
 
 		for (state = IEEE80211_STA_NOTEXIST;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5b75468b5acd..146d83785b37 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4058,6 +4058,7 @@ static int parse_station_flags(struct genl_info *info,
 		params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 					 BIT(NL80211_STA_FLAG_MFP) |
 					 BIT(NL80211_STA_FLAG_AUTHORIZED);
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 5b8fa6832687..1f943d97dc29 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2354,6 +2354,9 @@ struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig,
 	if (IS_ERR(dst) && PTR_ERR(dst) == -EREMOTE)
 		return make_blackhole(net, dst_orig->ops->family, dst_orig);
 
+	if (IS_ERR(dst))
+		dst_release(dst_orig);
+
 	return dst;
 }
 EXPORT_SYMBOL(xfrm_lookup_route);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index bb61956c0f9c..6e768093d7c8 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -984,10 +984,12 @@ static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb,
 {
 	struct sock *nlsk = rcu_dereference(net->xfrm.nlsk);
 
-	if (nlsk)
-		return nlmsg_multicast(nlsk, skb, pid, group, GFP_ATOMIC);
-	else
-		return -1;
+	if (!nlsk) {
+		kfree_skb(skb);
+		return -EPIPE;
+	}
+
+	return nlmsg_multicast(nlsk, skb, pid, group, GFP_ATOMIC);
 }
 
 static inline size_t xfrm_spdinfo_msgsize(void)
diff --git a/sound/soc/sirf/sirf-usp.c b/sound/soc/sirf/sirf-usp.c
index 45fc06c0e0e5..6b504f407079 100644
--- a/sound/soc/sirf/sirf-usp.c
+++ b/sound/soc/sirf/sirf-usp.c
@@ -367,10 +367,9 @@ static int sirf_usp_pcm_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, usp);
 
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap(&pdev->dev, mem_res->start,
-		resource_size(mem_res));
-	if (base == NULL)
-		return -ENOMEM;
+	base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 	usp->regmap = devm_regmap_init_mmio(&pdev->dev, base,
 					    &sirf_usp_regmap_config);
 	if (IS_ERR(usp->regmap))
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 20680a490897..b111ecda6439 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1621,6 +1621,14 @@ static u64 dpcm_runtime_base_format(struct snd_pcm_substream *substream)
 		int i;
 
 		for (i = 0; i < be->num_codecs; i++) {
+			/*
+			 * Skip CODECs which don't support the current stream
+			 * type. See soc_pcm_init_runtime_hw() for more details
+			 */
+			if (!snd_soc_dai_stream_valid(be->codec_dais[i],
+						      stream))
+				continue;
+
 			codec_dai_drv = be->codec_dais[i]->driver;
 			if (stream == SNDRV_PCM_STREAM_PLAYBACK)
 				codec_stream = &codec_dai_drv->playback;
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 9664b1ff4285..5ec2de8f49b4 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -733,9 +733,7 @@ void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_
 	if (!printed || !summary_only)
 		print_header();
 
-	if (topo.num_cpus > 1)
-		format_counters(&average.threads, &average.cores,
-			&average.packages);
+	format_counters(&average.threads, &average.cores, &average.packages);
 
 	printed = 1;
 
@@ -3202,7 +3200,9 @@ void process_cpuid()
 	family = (fms >> 8) & 0xf;
 	model = (fms >> 4) & 0xf;
 	stepping = fms & 0xf;
-	if (family == 6 || family == 0xf)
+	if (family == 0xf)
+		family += (fms >> 20) & 0xff;
+	if (family >= 6)
 		model += ((fms >> 16) & 0xf) << 4;
 
 	if (debug) {
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc
new file mode 100644
index 000000000000..3b1f45e13a2e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc
@@ -0,0 +1,28 @@
+#!/bin/sh
+# description: Snapshot and tracing setting
+# flags: instance
+
+[ ! -f snapshot ] && exit_unsupported
+
+echo "Set tracing off"
+echo 0 > tracing_on
+
+echo "Allocate and take a snapshot"
+echo 1 > snapshot
+
+# Since trace buffer is empty, snapshot is also empty, but allocated
+grep -q "Snapshot is allocated" snapshot
+
+echo "Ensure keep tracing off"
+test `cat tracing_on` -eq 0
+
+echo "Set tracing on"
+echo 1 > tracing_on
+
+echo "Take a snapshot again"
+echo 1 > snapshot
+
+echo "Ensure keep tracing on"
+test `cat tracing_on` -eq 1
+
+exit 0
diff --git a/tools/usb/ffs-test.c b/tools/usb/ffs-test.c
index 88d5e71be044..47dfa0b0fcd7 100644
--- a/tools/usb/ffs-test.c
+++ b/tools/usb/ffs-test.c
@@ -44,12 +44,25 @@
 
 /******************** Little Endian Handling ********************************/
 
-#define cpu_to_le16(x)  htole16(x)
-#define cpu_to_le32(x)  htole32(x)
+/*
+ * cpu_to_le16/32 are used when initializing structures, a context where a
+ * function call is not allowed. To solve this, we code cpu_to_le16/32 in a way
+ * that allows them to be used when initializing structures.
+ */
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define cpu_to_le16(x)  (x)
+#define cpu_to_le32(x)  (x)
+#else
+#define cpu_to_le16(x)  ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8))
+#define cpu_to_le32(x)  \
+	((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >>  8) | \
+	(((x) & 0x0000ff00u) <<  8) | (((x) & 0x000000ffu) << 24))
+#endif
+
 #define le32_to_cpu(x)  le32toh(x)
 #define le16_to_cpu(x)  le16toh(x)
 
-
 /******************** Messages and Errors ***********************************/
 
 static const char argv0[] = "ffs-test";