205 files changed, 2202 insertions, 960 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 0e1abe8cc684..9a76a404ea96 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1741,7 +1741,7 @@ S:	Maintained
 F:      drivers/net/ethernet/atheros/
 
 ATM
-M:      Chas Williams <chas@cmf.nrl.navy.mil>
+M:      Chas Williams <3chas3@gmail.com>
 L:      linux-atm-general@lists.sourceforge.net (moderated for non-subscribers)
 L:      netdev@vger.kernel.org
 W:      http://linux-atm.sourceforge.net
diff --git a/arch/arm/crypto/aesbs-core.S_shipped b/arch/arm/crypto/aesbs-core.S_shipped
index 71e5fc7cfb18..1d1800f71c5b 100644
--- a/arch/arm/crypto/aesbs-core.S_shipped
+++ b/arch/arm/crypto/aesbs-core.S_shipped
@@ -58,14 +58,18 @@
 # define VFP_ABI_FRAME  0
 # define BSAES_ASM_EXTENDED_KEY
 # define XTS_CHAIN_TWEAK
-# define __ARM_ARCH__   7
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ 7
 #endif
 
 #ifdef __thumb__
 # define adrl adr
 #endif
 
-#if __ARM_ARCH__>=7
+#if __ARM_MAX_ARCH__>=7
+.arch   armv7-a
+.fpu    neon
+
 .text
 .syntax unified         @ ARMv7-capable assembler is expected to handle this
 #ifdef __thumb2__
@@ -74,8 +78,6 @@
 .code   32
 #endif
 
-.fpu    neon
-
 .type   _bsaes_decrypt8,%function
 .align  4
 _bsaes_decrypt8:
@@ -2095,9 +2097,11 @@ bsaes_xts_decrypt:
         vld1.8  {q8}, [r0]                      @ initial tweak
         adr     r2, .Lxts_magic
 
+#ifndef XTS_CHAIN_TWEAK
         tst     r9, #0xf                        @ if not multiple of 16
         it      ne                              @ Thumb2 thing, sanity check in ARM
         subne   r9, #0x10                       @ subtract another 16 bytes
+#endif
         subs    r9, #0x80
 
         blo     .Lxts_dec_short
diff --git a/arch/arm/crypto/bsaes-armv7.pl b/arch/arm/crypto/bsaes-armv7.pl
index be068db960ee..a4d3856e7d24 100644
--- a/arch/arm/crypto/bsaes-armv7.pl
+++ b/arch/arm/crypto/bsaes-armv7.pl
@@ -701,14 +701,18 @@ $code.=<<___;
 # define VFP_ABI_FRAME  0
 # define BSAES_ASM_EXTENDED_KEY
 # define XTS_CHAIN_TWEAK
-# define __ARM_ARCH__   7
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ 7
 #endif
 
 #ifdef __thumb__
 # define adrl adr
 #endif
 
-#if __ARM_ARCH__>=7
+#if __ARM_MAX_ARCH__>=7
+.arch   armv7-a
+.fpu    neon
+
 .text
 .syntax unified         @ ARMv7-capable assembler is expected to handle this
 #ifdef __thumb2__
@@ -717,8 +721,6 @@ $code.=<<___;
 .code   32
 #endif
 
-.fpu    neon
-
 .type   _bsaes_decrypt8,%function
 .align  4
 _bsaes_decrypt8:
@@ -2076,9 +2078,11 @@ bsaes_xts_decrypt:
         vld1.8  {@XMM[8]}, [r0]                 @ initial tweak
         adr     $magic, .Lxts_magic
 
+#ifndef XTS_CHAIN_TWEAK
         tst     $len, #0xf                      @ if not multiple of 16
         it      ne                              @ Thumb2 thing, sanity check in ARM
         subne   $len, #0x10                     @ subtract another 16 bytes
+#endif
         subs    $len, #0x80
 
         blo     .Lxts_dec_short
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index bf0fe99e8ca9..4cf48c3aca13 100644
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -149,29 +149,28 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
         (__boundary - 1 < (end) - 1)? __boundary: (end);                \
 })
 
+#define kvm_pgd_index(addr)                     pgd_index(addr)
+
 static inline bool kvm_page_empty(void *ptr)
 {
         struct page *ptr_page = virt_to_page(ptr);
         return page_count(ptr_page) == 1;
 }
 
-
 #define kvm_pte_table_empty(kvm, ptep) kvm_page_empty(ptep)
 #define kvm_pmd_table_empty(kvm, pmdp) kvm_page_empty(pmdp)
 #define kvm_pud_table_empty(kvm, pudp) (0)
 
 #define KVM_PREALLOC_LEVEL      0
 
-static inline int kvm_prealloc_hwpgd(struct kvm *kvm, pgd_t *pgd)
+static inline void *kvm_get_hwpgd(struct kvm *kvm)
 {
-        return 0;
+        return kvm->arch.pgd;
 }
 
-static inline void kvm_free_hwpgd(struct kvm *kvm) { }
-
-static inline void *kvm_get_hwpgd(struct kvm *kvm)
+static inline unsigned int kvm_get_hwpgd_size(void)
 {
-        return kvm->arch.pgd;
+        return PTRS_PER_S2_PGD * sizeof(pgd_t);
 }
 
 struct kvm;
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index e55408e96559..1d60bebea4b8 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -246,12 +246,9 @@ static int __get_cpu_architecture(void)
                 if (cpu_arch)
                         cpu_arch += CPU_ARCH_ARMv3;
         } else if ((read_cpuid_id() & 0x000f0000) == 0x000f0000) {
-                unsigned int mmfr0;
-
                 /* Revised CPUID format. Read the Memory Model Feature
                  * Register 0 and check for VMSAv7 or PMSAv7 */
-                asm("mrc        p15, 0, %0, c0, c1, 4"
-                    : "=r" (mmfr0));
+                unsigned int mmfr0 = read_cpuid_ext(CPUID_EXT_MMFR0);
                 if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
                     (mmfr0 & 0x000000f0) >= 0x00000030)
                         cpu_arch = CPU_ARCH_ARMv7;
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 3e6859bc3e11..5656d79c5a44 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -290,7 +290,7 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
         phys_addr_t addr = start, end = start + size;
         phys_addr_t next;
 
-        pgd = pgdp + pgd_index(addr);
+        pgd = pgdp + kvm_pgd_index(addr);
         do {
                 next = kvm_pgd_addr_end(addr, end);
                 if (!pgd_none(*pgd))
@@ -355,7 +355,7 @@ static void stage2_flush_memslot(struct kvm *kvm,
         phys_addr_t next;
         pgd_t *pgd;
 
-        pgd = kvm->arch.pgd + pgd_index(addr);
+        pgd = kvm->arch.pgd + kvm_pgd_index(addr);
         do {
                 next = kvm_pgd_addr_end(addr, end);
                 stage2_flush_puds(kvm, pgd, addr, next);
@@ -632,6 +632,20 @@ int create_hyp_io_mappings(void *from, void *to, phys_addr_t phys_addr)
                                      __phys_to_pfn(phys_addr), PAGE_HYP_DEVICE);
 }
 
+/* Free the HW pgd, one page at a time */
+static void kvm_free_hwpgd(void *hwpgd)
+{
+        free_pages_exact(hwpgd, kvm_get_hwpgd_size());
+}
+
+/* Allocate the HW PGD, making sure that each page gets its own refcount */
+static void *kvm_alloc_hwpgd(void)
+{
+        unsigned int size = kvm_get_hwpgd_size();
+
+        return alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
+}
+
 /**
  * kvm_alloc_stage2_pgd - allocate level-1 table for stage-2 translation.
  * @kvm:        The KVM struct pointer for the VM.
@@ -645,15 +659,31 @@ int create_hyp_io_mappings(void *from, void *to, phys_addr_t phys_addr)
  */
 int kvm_alloc_stage2_pgd(struct kvm *kvm)
 {
-        int ret;
         pgd_t *pgd;
+        void *hwpgd;
 
         if (kvm->arch.pgd != NULL) {
                 kvm_err("kvm_arch already initialized?\n");
                 return -EINVAL;
         }
 
+        hwpgd = kvm_alloc_hwpgd();
+        if (!hwpgd)
+                return -ENOMEM;
+
+        /* When the kernel uses more levels of page tables than the
+         * guest, we allocate a fake PGD and pre-populate it to point
+         * to the next-level page table, which will be the real
+         * initial page table pointed to by the VTTBR.
+         *
+         * When KVM_PREALLOC_LEVEL==2, we allocate a single page for
+         * the PMD and the kernel will use folded pud.
+         * When KVM_PREALLOC_LEVEL==1, we allocate 2 consecutive PUD
+         * pages.
+         */
         if (KVM_PREALLOC_LEVEL > 0) {
+                int i;
+
                 /*
                  * Allocate fake pgd for the page table manipulation macros to
                  * work.  This is not used by the hardware and we have no
@@ -661,30 +691,32 @@ int kvm_alloc_stage2_pgd(struct kvm *kvm)
                  */
                 pgd = (pgd_t *)kmalloc(PTRS_PER_S2_PGD * sizeof(pgd_t),
                                        GFP_KERNEL | __GFP_ZERO);
+
+                if (!pgd) {
+                        kvm_free_hwpgd(hwpgd);
+                        return -ENOMEM;
+                }
+
+                /* Plug the HW PGD into the fake one. */
+                for (i = 0; i < PTRS_PER_S2_PGD; i++) {
+                        if (KVM_PREALLOC_LEVEL == 1)
+                                pgd_populate(NULL, pgd + i,
+                                             (pud_t *)hwpgd + i * PTRS_PER_PUD);
+                        else if (KVM_PREALLOC_LEVEL == 2)
+                                pud_populate(NULL, pud_offset(pgd, 0) + i,
+                                             (pmd_t *)hwpgd + i * PTRS_PER_PMD);
+                }
         } else {
                 /*
                  * Allocate actual first-level Stage-2 page table used by the
                  * hardware for Stage-2 page table walks.
                  */
-                pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, S2_PGD_ORDER);
+                pgd = (pgd_t *)hwpgd;
         }
 
-        if (!pgd)
-                return -ENOMEM;
-
-        ret = kvm_prealloc_hwpgd(kvm, pgd);
-        if (ret)
-                goto out_err;
-
         kvm_clean_pgd(pgd);
         kvm->arch.pgd = pgd;
         return 0;
-out_err:
-        if (KVM_PREALLOC_LEVEL > 0)
-                kfree(pgd);
-        else
-                free_pages((unsigned long)pgd, S2_PGD_ORDER);
-        return ret;
 }
 
 /**
@@ -785,11 +817,10 @@ void kvm_free_stage2_pgd(struct kvm *kvm)
                 return;
 
         unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
-        kvm_free_hwpgd(kvm);
+        kvm_free_hwpgd(kvm_get_hwpgd(kvm));
         if (KVM_PREALLOC_LEVEL > 0)
                 kfree(kvm->arch.pgd);
-        else
-                free_pages((unsigned long)kvm->arch.pgd, S2_PGD_ORDER);
+
         kvm->arch.pgd = NULL;
 }
 
@@ -799,7 +830,7 @@ static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache
         pgd_t *pgd;
         pud_t *pud;
 
-        pgd = kvm->arch.pgd + pgd_index(addr);
+        pgd = kvm->arch.pgd + kvm_pgd_index(addr);
         if (WARN_ON(pgd_none(*pgd))) {
                 if (!cache)
                         return NULL;
@@ -1089,7 +1120,7 @@ static void stage2_wp_range(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
         pgd_t *pgd;
         phys_addr_t next;
 
-        pgd = kvm->arch.pgd + pgd_index(addr);
+        pgd = kvm->arch.pgd + kvm_pgd_index(addr);
         do {
                 /*
                  * Release kvm_mmu_lock periodically if the memory region is
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index c6c7696b8db9..8f15f70622a6 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1131,23 +1131,22 @@ static void __init l2c310_of_parse(const struct device_node *np,
         }
 
         ret = l2x0_cache_size_of_parse(np, aux_val, aux_mask, &assoc, SZ_512K);
-        if (ret)
-                return;
-
-        switch (assoc) {
-        case 16:
-                *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-                *aux_val |= L310_AUX_CTRL_ASSOCIATIVITY_16;
-                *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-                break;
-        case 8:
-                *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-                *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-                break;
-        default:
-                pr_err("L2C-310 OF cache associativity %d invalid, only 8 or 16 permitted\n",
-                       assoc);
-                break;
+        if (!ret) {
+                switch (assoc) {
+                case 16:
+                        *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+                        *aux_val |= L310_AUX_CTRL_ASSOCIATIVITY_16;
+                        *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+                        break;
+                case 8:
+                        *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+                        *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+                        break;
+                default:
+                        pr_err("L2C-310 OF cache associativity %d invalid, only 8 or 16 permitted\n",
+                               assoc);
+                        break;
+                }
         }
 
         prefetch = l2x0_saved_regs.prefetch_ctrl;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 170a116d1b29..c27447653903 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -171,7 +171,7 @@ static int __dma_supported(struct device *dev, u64 mask, bool warn)
          */
         if (sizeof(mask) != sizeof(dma_addr_t) &&
             mask > (dma_addr_t)~0 &&
-            dma_to_pfn(dev, ~0) < max_pfn) {
+            dma_to_pfn(dev, ~0) < max_pfn - 1) {
                 if (warn) {
                         dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
                                  mask);
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index a982dc3190df..6333d9c17875 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -552,6 +552,7 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 
         pr_alert("Unhandled fault: %s (0x%03x) at 0x%08lx\n",
                 inf->name, fsr, addr);
+        show_pte(current->mm, addr);
 
         info.si_signo = inf->sig;
         info.si_errno = 0;
diff --git a/arch/arm/mm/pageattr.c b/arch/arm/mm/pageattr.c
index 004e35cdcfff..cf30daff8932 100644
--- a/arch/arm/mm/pageattr.c
+++ b/arch/arm/mm/pageattr.c
@@ -49,7 +49,10 @@ static int change_memory_common(unsigned long addr, int numpages,
                 WARN_ON_ONCE(1);
         }
 
-        if (!is_module_address(start) || !is_module_address(end - 1))
+        if (start < MODULES_VADDR || start >= MODULES_END)
+                return -EINVAL;
+
+        if (end < MODULES_VADDR || start >= MODULES_END)
                 return -EINVAL;
 
         data.set_mask = set_mask;
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 94674eb7e7bb..54bb4ba97441 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -129,6 +129,9 @@
  * 40 bits wide (T0SZ = 24).  Systems with a PARange smaller than 40 bits are
  * not known to exist and will break with this configuration.
  *
+ * VTCR_EL2.PS is extracted from ID_AA64MMFR0_EL1.PARange at boot time
+ * (see hyp-init.S).
+ *
  * Note that when using 4K pages, we concatenate two first level page tables
  * together.
  *
@@ -138,7 +141,6 @@
 #ifdef CONFIG_ARM64_64K_PAGES
 /*
  * Stage2 translation configuration:
- * 40bits output (PS = 2)
  * 40bits input  (T0SZ = 24)
  * 64kB pages (TG0 = 1)
  * 2 level page tables (SL = 1)
@@ -150,7 +152,6 @@
 #else
 /*
  * Stage2 translation configuration:
- * 40bits output (PS = 2)
  * 40bits input  (T0SZ = 24)
  * 4kB pages (TG0 = 0)
  * 3 level page tables (SL = 1)
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 6458b5373142..bbfb600fa822 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -158,6 +158,8 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 #define PTRS_PER_S2_PGD         (1 << PTRS_PER_S2_PGD_SHIFT)
 #define S2_PGD_ORDER            get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
 
+#define kvm_pgd_index(addr)     (((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))
+
 /*
  * If we are concatenating first level stage-2 page tables, we would have less
  * than or equal to 16 pointers in the fake PGD, because that's what the
@@ -171,43 +173,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 #define KVM_PREALLOC_LEVEL      (0)
 #endif
 
-/**
- * kvm_prealloc_hwpgd - allocate inital table for VTTBR
- * @kvm:        The KVM struct pointer for the VM.
- * @pgd:        The kernel pseudo pgd
- *
- * When the kernel uses more levels of page tables than the guest, we allocate
- * a fake PGD and pre-populate it to point to the next-level page table, which
- * will be the real initial page table pointed to by the VTTBR.
- *
- * When KVM_PREALLOC_LEVEL==2, we allocate a single page for the PMD and
- * the kernel will use folded pud.  When KVM_PREALLOC_LEVEL==1, we
- * allocate 2 consecutive PUD pages.
- */
-static inline int kvm_prealloc_hwpgd(struct kvm *kvm, pgd_t *pgd)
-{
-        unsigned int i;
-        unsigned long hwpgd;
-
-        if (KVM_PREALLOC_LEVEL == 0)
-                return 0;
-
-        hwpgd = __get_free_pages(GFP_KERNEL | __GFP_ZERO, PTRS_PER_S2_PGD_SHIFT);
-        if (!hwpgd)
-                return -ENOMEM;
-
-        for (i = 0; i < PTRS_PER_S2_PGD; i++) {
-                if (KVM_PREALLOC_LEVEL == 1)
-                        pgd_populate(NULL, pgd + i,
-                                     (pud_t *)hwpgd + i * PTRS_PER_PUD);
-                else if (KVM_PREALLOC_LEVEL == 2)
-                        pud_populate(NULL, pud_offset(pgd, 0) + i,
-                                     (pmd_t *)hwpgd + i * PTRS_PER_PMD);
-        }
-
-        return 0;
-}
-
 static inline void *kvm_get_hwpgd(struct kvm *kvm)
 {
         pgd_t *pgd = kvm->arch.pgd;
@@ -224,12 +189,11 @@ static inline void *kvm_get_hwpgd(struct kvm *kvm)
         return pmd_offset(pud, 0);
 }
 
-static inline void kvm_free_hwpgd(struct kvm *kvm)
+static inline unsigned int kvm_get_hwpgd_size(void)
 {
-        if (KVM_PREALLOC_LEVEL > 0) {
-                unsigned long hwpgd = (unsigned long)kvm_get_hwpgd(kvm);
-                free_pages(hwpgd, PTRS_PER_S2_PGD_SHIFT);
-        }
+        if (KVM_PREALLOC_LEVEL > 0)
+                return PTRS_PER_S2_PGD * PAGE_SIZE;
+        return PTRS_PER_S2_PGD * sizeof(pgd_t);
 }
 
 static inline bool kvm_page_empty(void *ptr)
diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h
index 9a8fd84f8fb2..941c375616e2 100644
--- a/arch/arm64/include/asm/proc-fns.h
+++ b/arch/arm64/include/asm/proc-fns.h
@@ -39,7 +39,11 @@ extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr);
 
 #include <asm/memory.h>
 
-#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
+#define cpu_switch_mm(pgd,mm)                           \
+do {                                                    \
+        BUG_ON(pgd == swapper_pg_dir);                  \
+        cpu_do_switch_mm(virt_to_phys(pgd),mm);         \
+} while (0)
 
 #define cpu_get_pgd()                                   \
 ({                                                      \
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index 2b8d70164428..ab21e0d58278 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -337,7 +337,11 @@ core_initcall(arm64_dmi_init);
 
 static void efi_set_pgd(struct mm_struct *mm)
 {
-        cpu_switch_mm(mm->pgd, mm);
+        if (mm == &init_mm)
+                cpu_set_reserved_ttbr0();
+        else
+                cpu_switch_mm(mm->pgd, mm);
+
         flush_tlb_all();
         if (icache_is_aivivt())
                 __flush_icache_all();
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 58e0c2bdde04..ef7d112f5ce0 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -51,7 +51,7 @@ static int __init early_coherent_pool(char *p)
 }
 early_param("coherent_pool", early_coherent_pool);
 
-static void *__alloc_from_pool(size_t size, struct page **ret_page)
+static void *__alloc_from_pool(size_t size, struct page **ret_page, gfp_t flags)
 {
         unsigned long val;
         void *ptr = NULL;
@@ -67,6 +67,8 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page)
 
                 *ret_page = phys_to_page(phys);
                 ptr = (void *)val;
+                if (flags & __GFP_ZERO)
+                        memset(ptr, 0, size);
         }
 
         return ptr;
@@ -101,6 +103,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
                 flags |= GFP_DMA;
         if (IS_ENABLED(CONFIG_DMA_CMA) && (flags & __GFP_WAIT)) {
                 struct page *page;
+                void *addr;
 
                 size = PAGE_ALIGN(size);
                 page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT,
@@ -109,7 +112,10 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
                         return NULL;
 
                 *dma_handle = phys_to_dma(dev, page_to_phys(page));
-                return page_address(page);
+                addr = page_address(page);
+                if (flags & __GFP_ZERO)
+                        memset(addr, 0, size);
+                return addr;
         } else {
                 return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
         }
@@ -146,7 +152,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
 
         if (!coherent && !(flags & __GFP_WAIT)) {
                 struct page *page = NULL;
-                void *addr = __alloc_from_pool(size, &page);
+                void *addr = __alloc_from_pool(size, &page, flags);
 
                 if (addr)
                         *dma_handle = phys_to_dma(dev, page_to_phys(page));
diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index 376131194cc3..e0bb972a50d7 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -1,6 +1,5 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 header-y += elf.h
-header-y += ucontext.h
 
 generic-y += ucontext.h
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index 0d231adfe576..0c9b6afe69e9 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -126,7 +126,6 @@ good_area:
                 break;
         }
 
-survive:
         /*
          * If for any reason at all we couldn't handle the fault,
          * make sure we exit gracefully rather than endlessly redo
@@ -220,11 +219,6 @@ no_context:
  */
 out_of_memory:
         up_read(&mm->mmap_sem);
-        if (is_global_init(tsk)) {
-                yield();
-                down_read(&mm->mmap_sem);
-                goto survive;
-        }
         if (!user_mode(regs))
                 goto no_context;
         pagefault_out_of_memory();
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f6579cfde2df..19e17bd7aec0 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -165,7 +165,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
         case KVM_CAP_ONE_REG:
         case KVM_CAP_ENABLE_CAP:
         case KVM_CAP_S390_CSS_SUPPORT:
-        case KVM_CAP_IRQFD:
         case KVM_CAP_IOEVENTFD:
         case KVM_CAP_DEVICE_CTRL:
         case KVM_CAP_ENABLE_CAP_VM:
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 96ac69c5eba0..efb00ec75805 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -86,6 +86,9 @@ config ARCH_DEFCONFIG
         default "arch/sparc/configs/sparc32_defconfig" if SPARC32
         default "arch/sparc/configs/sparc64_defconfig" if SPARC64
 
+config ARCH_PROC_KCORE_TEXT
+        def_bool y
+
 config IOMMU_HELPER
         bool
         default y if SPARC64
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9b672be70dda..50d4840d9aeb 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -407,16 +407,16 @@ static inline void iounmap(volatile void __iomem *addr)
 {
 }
 
-#define ioread8(X)                      readb(X)
-#define ioread16(X)                     readw(X)
-#define ioread16be(X)                   __raw_readw(X)
-#define ioread32(X)                     readl(X)
-#define ioread32be(X)                   __raw_readl(X)
-#define iowrite8(val,X)                 writeb(val,X)
-#define iowrite16(val,X)                writew(val,X)
-#define iowrite16be(val,X)              __raw_writew(val,X)
-#define iowrite32(val,X)                writel(val,X)
-#define iowrite32be(val,X)              __raw_writel(val,X)
+#define ioread8                 readb
+#define ioread16                readw
+#define ioread16be              __raw_readw
+#define ioread32                readl
+#define ioread32be              __raw_readl
+#define iowrite8                writeb
+#define iowrite16               writew
+#define iowrite16be             __raw_writew
+#define iowrite32               writel
+#define iowrite32be             __raw_writel
 
 /* Create a virtual mapping cookie for an IO port range */
 void __iomem *ioport_map(unsigned long port, unsigned int nr);
diff --git a/arch/sparc/include/asm/starfire.h b/arch/sparc/include/asm/starfire.h
index c100dc27a0a9..176fa0ad19f1 100644
--- a/arch/sparc/include/asm/starfire.h
+++ b/arch/sparc/include/asm/starfire.h
@@ -12,7 +12,6 @@
 extern int this_is_starfire;
 
 void check_if_starfire(void);
-int starfire_hard_smp_processor_id(void);
 void starfire_hookup(int);
 unsigned int starfire_translate(unsigned long imap, unsigned int upaid);
 
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 88d322b67fac..07cc49e541f4 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -98,11 +98,7 @@ void sun4v_do_mna(struct pt_regs *regs,
 void do_privop(struct pt_regs *regs);
 void do_privact(struct pt_regs *regs);
 void do_cee(struct pt_regs *regs);
-void do_cee_tl1(struct pt_regs *regs);
-void do_dae_tl1(struct pt_regs *regs);
-void do_iae_tl1(struct pt_regs *regs);
 void do_div0_tl1(struct pt_regs *regs);
-void do_fpdis_tl1(struct pt_regs *regs);
 void do_fpieee_tl1(struct pt_regs *regs);
 void do_fpother_tl1(struct pt_regs *regs);
 void do_ill_tl1(struct pt_regs *regs);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index da6f1a7fc4db..61139d9924ca 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1406,11 +1406,32 @@ void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
         scheduler_ipi();
 }
 
-/* This is a nop because we capture all other cpus
- * anyways when making the PROM active.
- */
+static void stop_this_cpu(void *dummy)
+{
+        prom_stopself();
+}
+
 void smp_send_stop(void)
 {
+        int cpu;
+
+        if (tlb_type == hypervisor) {
+                for_each_online_cpu(cpu) {
+                        if (cpu == smp_processor_id())
+                                continue;
+#ifdef CONFIG_SUN_LDOMS
+                        if (ldom_domaining_enabled) {
+                                unsigned long hv_err;
+                                hv_err = sun4v_cpu_stop(cpu);
+                                if (hv_err)
+                                        printk(KERN_ERR "sun4v_cpu_stop() "
+                                               "failed err=%lu\n", hv_err);
+                        } else
+#endif
+                                prom_stopcpu_cpuid(cpu);
+                }
+        } else
+                smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 /**
diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c
index 82281a566bb8..167fdfd9c837 100644
--- a/arch/sparc/kernel/starfire.c
+++ b/arch/sparc/kernel/starfire.c
@@ -28,11 +28,6 @@ void check_if_starfire(void)
                 this_is_starfire = 1;
 }
 
-int starfire_hard_smp_processor_id(void)
-{
-        return upa_readl(0x1fff40000d0UL);
-}
-
 /*
  * Each Starfire board has 32 registers which perform translation
  * and delivery of traditional interrupt packets into the extended
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c85403d0496c..30e7ddb27a3a 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -333,7 +333,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second
         long err;
 
         /* No need for backward compatibility. We can start fresh... */
-        if (call <= SEMCTL) {
+        if (call <= SEMTIMEDOP) {
                 switch (call) {
                 case SEMOP:
                         err = sys_semtimedop(first, ptr,
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index a27651e866e7..0e699745d643 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2427,6 +2427,8 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
                 }
                 user_instruction_dump ((unsigned int __user *) regs->tpc);
         }
+        if (panic_on_oops)
+                panic("Fatal exception");
         if (regs->tstate & TSTATE_PRIV)
                 do_exit(SIGKILL);
         do_exit(SIGSEGV);
@@ -2564,27 +2566,6 @@ void do_cee(struct pt_regs *regs)
         die_if_kernel("TL0: Cache Error Exception", regs);
 }
 
-void do_cee_tl1(struct pt_regs *regs)
-{
-        exception_enter();
-        dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-        die_if_kernel("TL1: Cache Error Exception", regs);
-}
-
-void do_dae_tl1(struct pt_regs *regs)
-{
-        exception_enter();
-        dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-        die_if_kernel("TL1: Data Access Exception", regs);
-}
-
-void do_iae_tl1(struct pt_regs *regs)
-{
-        exception_enter();
-        dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-        die_if_kernel("TL1: Instruction Access Exception", regs);
-}
-
 void do_div0_tl1(struct pt_regs *regs)
 {
         exception_enter();
@@ -2592,13 +2573,6 @@ void do_div0_tl1(struct pt_regs *regs)
         die_if_kernel("TL1: DIV0 Exception", regs);
 }
 
-void do_fpdis_tl1(struct pt_regs *regs)
-{
-        exception_enter();
-        dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-        die_if_kernel("TL1: FPU Disabled", regs);
-}
-
 void do_fpieee_tl1(struct pt_regs *regs)
 {
         exception_enter();
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3ea267c53320..4ca0d6ba5ec8 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2820,7 +2820,7 @@ static int __init report_memory(void)
 
         return 0;
 }
-device_initcall(report_memory);
+arch_initcall(report_memory);
 
 #ifdef CONFIG_SMP
 #define do_flush_tlb_kernel_range       smp_flush_tlb_kernel_range
diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c
index 7083c16cccba..bb1376381985 100644
--- a/arch/x86/boot/compressed/aslr.c
+++ b/arch/x86/boot/compressed/aslr.c
@@ -14,13 +14,6 @@
 static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
                 LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
 
-struct kaslr_setup_data {
-        __u64 next;
-        __u32 type;
-        __u32 len;
-        __u8 data[1];
-} kaslr_setup_data;
-
 #define I8254_PORT_CONTROL      0x43
 #define I8254_PORT_COUNTER0     0x40
 #define I8254_CMD_READBACK      0xC0
@@ -302,29 +295,7 @@ static unsigned long find_random_addr(unsigned long minimum,
         return slots_fetch_random();
 }
 
-static void add_kaslr_setup_data(struct boot_params *params, __u8 enabled)
-{
-        struct setup_data *data;
-
-        kaslr_setup_data.type = SETUP_KASLR;
-        kaslr_setup_data.len = 1;
-        kaslr_setup_data.next = 0;
-        kaslr_setup_data.data[0] = enabled;
-
-        data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
-
-        while (data && data->next)
-                data = (struct setup_data *)(unsigned long)data->next;
-
-        if (data)
-                data->next = (unsigned long)&kaslr_setup_data;
-        else
-                params->hdr.setup_data = (unsigned long)&kaslr_setup_data;
-
-}
-
-unsigned char *choose_kernel_location(struct boot_params *params,
-                                      unsigned char *input,
+unsigned char *choose_kernel_location(unsigned char *input,
                                       unsigned long input_size,
                                       unsigned char *output,
                                       unsigned long output_size)
@@ -335,17 +306,14 @@ unsigned char *choose_kernel_location(struct boot_params *params,
 #ifdef CONFIG_HIBERNATION
         if (!cmdline_find_option_bool("kaslr")) {
                 debug_putstr("KASLR disabled by default...\n");
-                add_kaslr_setup_data(params, 0);
                 goto out;
         }
 #else
         if (cmdline_find_option_bool("nokaslr")) {
                 debug_putstr("KASLR disabled by cmdline...\n");
-                add_kaslr_setup_data(params, 0);
                 goto out;
         }
 #endif
-        add_kaslr_setup_data(params, 1);
 
         /* Record the various known unsafe memory ranges. */
         mem_avoid_init((unsigned long)input, input_size,
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 5903089c818f..a950864a64da 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -401,8 +401,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
          * the entire decompressed kernel plus relocation table, or the
          * entire decompressed kernel plus .bss and .brk sections.
          */
-        output = choose_kernel_location(real_mode, input_data, input_len,
-                                        output,
+        output = choose_kernel_location(input_data, input_len, output,
                                         output_len > run_size ? output_len
                                                               : run_size);
 
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index ee3576b2666b..04477d68403f 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -57,8 +57,7 @@ int cmdline_find_option_bool(const char *option);
 
 #if CONFIG_RANDOMIZE_BASE
 /* aslr.c */
-unsigned char *choose_kernel_location(struct boot_params *params,
-                                      unsigned char *input,
+unsigned char *choose_kernel_location(unsigned char *input,
                                       unsigned long input_size,
                                       unsigned char *output,
                                       unsigned long output_size);
@@ -66,8 +65,7 @@ unsigned char *choose_kernel_location(struct boot_params *params,
 bool has_cpuflag(int flag);
 #else
 static inline
-unsigned char *choose_kernel_location(struct boot_params *params,
-                                      unsigned char *input,
+unsigned char *choose_kernel_location(unsigned char *input,
                                       unsigned long input_size,
                                       unsigned char *output,
                                       unsigned long output_size)
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 947c6bf52c33..54f60ab41c63 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -1155,7 +1155,7 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
                 src = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC);
                 if (!src)
                         return -ENOMEM;
-                assoc = (src + req->cryptlen + auth_tag_len);
+                assoc = (src + req->cryptlen);
                 scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0);
                 scatterwalk_map_and_copy(assoc, req->assoc, 0,
                         req->assoclen, 0);
@@ -1180,7 +1180,7 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
                 scatterwalk_done(&src_sg_walk, 0, 0);
                 scatterwalk_done(&assoc_sg_walk, 0, 0);
         } else {
-                scatterwalk_map_and_copy(dst, req->dst, 0, req->cryptlen, 1);
+                scatterwalk_map_and_copy(dst, req->dst, 0, tempCipherLen, 1);
                 kfree(src);
         }
         return retval;
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 0dbc08282291..72ba21a8b5fc 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -370,7 +370,7 @@ static inline void drop_fpu(struct task_struct *tsk)
         preempt_disable();
         tsk->thread.fpu_counter = 0;
         __drop_fpu(tsk);
-        clear_used_math();
+        clear_stopped_child_used_math(tsk);
         preempt_enable();
 }
 
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index 95e11f79f123..f97fbe3abb67 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -51,8 +51,6 @@ extern int devmem_is_allowed(unsigned long pagenr);
 extern unsigned long max_low_pfn_mapped;
 extern unsigned long max_pfn_mapped;
 
-extern bool kaslr_enabled;
-
 static inline phys_addr_t get_max_mapped(void)
 {
         return (phys_addr_t)max_pfn_mapped << PAGE_SHIFT;
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index 44e6dd7e36a2..225b0988043a 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -7,7 +7,6 @@
 #define SETUP_DTB                       2
 #define SETUP_PCI                       3
 #define SETUP_EFI                       4
-#define SETUP_KASLR                     5
 
 /* ram_size flags */
 #define RAMDISK_IMAGE_START_MASK        0x07FF
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 3d525c6124f6..803b684676ff 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1338,6 +1338,26 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
 }
 
 /*
+ * ACPI offers an alternative platform interface model that removes
+ * ACPI hardware requirements for platforms that do not implement
+ * the PC Architecture.
+ *
+ * We initialize the Hardware-reduced ACPI model here:
+ */
+static void __init acpi_reduced_hw_init(void)
+{
+        if (acpi_gbl_reduced_hardware) {
+                /*
+                 * Override x86_init functions and bypass legacy pic
+                 * in Hardware-reduced ACPI mode
+                 */
+                x86_init.timers.timer_init      = x86_init_noop;
+                x86_init.irqs.pre_vector_init   = x86_init_noop;
+                legacy_pic                      = &null_legacy_pic;
+        }
+}
+
+/*
  * If your system is blacklisted here, but you find that acpi=force
  * works for you, please contact linux-acpi@vger.kernel.org
  */
@@ -1536,6 +1556,11 @@ int __init early_acpi_boot_init(void)
          */
         early_acpi_process_madt();
 
+        /*
+         * Hardware-reduced ACPI mode initialization:
+         */
+        acpi_reduced_hw_init();
+
         return 0;
 }
 
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index c2fd21fed002..017149cded07 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -37,10 +37,12 @@ static const struct apic apic_numachip;
 static unsigned int get_apic_id(unsigned long x)
 {
         unsigned long value;
-        unsigned int id;
+        unsigned int id = (x >> 24) & 0xff;
 
-        rdmsrl(MSR_FAM10H_NODE_ID, value);
-        id = ((x >> 24) & 0xffU) | ((value << 2) & 0xff00U);
+        if (static_cpu_has_safe(X86_FEATURE_NODEID_MSR)) {
+                rdmsrl(MSR_FAM10H_NODE_ID, value);
+                id |= (value << 2) & 0xff00;
+        }
 
         return id;
 }
@@ -155,10 +157,18 @@ static int __init numachip_probe(void)
 
 static void fixup_cpu_id(struct cpuinfo_x86 *c, int node)
 {
-        if (c->phys_proc_id != node) {
-                c->phys_proc_id = node;
-                per_cpu(cpu_llc_id, smp_processor_id()) = node;
+        u64 val;
+        u32 nodes = 1;
+
+        this_cpu_write(cpu_llc_id, node);
+
+        /* Account for nodes per socket in multi-core-module processors */
+        if (static_cpu_has_safe(X86_FEATURE_NODEID_MSR)) {
+                rdmsrl(MSR_FAM10H_NODE_ID, val);
+                nodes = ((val >> 3) & 7) + 1;
         }
+
+        c->phys_proc_id = node / nodes;
 }
 
 static int __init numachip_system_init(void)
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 9bbb9b35c144..d1ac80b72c72 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -47,13 +47,21 @@ do {							\
 
 #ifdef CONFIG_RANDOMIZE_BASE
 static unsigned long module_load_offset;
+static int randomize_modules = 1;
 
 /* Mutex protects the module_load_offset. */
 static DEFINE_MUTEX(module_kaslr_mutex);
 
+static int __init parse_nokaslr(char *p)
+{
+        randomize_modules = 0;
+        return 0;
+}
+early_param("nokaslr", parse_nokaslr);
+
 static unsigned long int get_module_load_offset(void)
 {
-        if (kaslr_enabled) {
+        if (randomize_modules) {
                 mutex_lock(&module_kaslr_mutex);
                 /*
                  * Calculate the module_load_offset the first time this
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 98dc9317286e..0a2421cca01f 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -122,8 +122,6 @@
 unsigned long max_low_pfn_mapped;
 unsigned long max_pfn_mapped;
 
-bool __read_mostly kaslr_enabled = false;
-
 #ifdef CONFIG_DMI
 RESERVE_BRK(dmi_alloc, 65536);
 #endif
@@ -427,11 +425,6 @@ static void __init reserve_initrd(void)
 }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-static void __init parse_kaslr_setup(u64 pa_data, u32 data_len)
-{
-        kaslr_enabled = (bool)(pa_data + sizeof(struct setup_data));
-}
-
 static void __init parse_setup_data(void)
 {
         struct setup_data *data;
@@ -457,9 +450,6 @@ static void __init parse_setup_data(void)
                 case SETUP_EFI:
                         parse_efi_setup(pa_data, data_len);
                         break;
-                case SETUP_KASLR:
-                        parse_kaslr_setup(pa_data, data_len);
-                        break;
                 default:
                         break;
                 }
@@ -842,14 +832,10 @@ static void __init trim_low_memory_range(void)
 static int
 dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 {
-        if (kaslr_enabled)
-                pr_emerg("Kernel Offset: 0x%lx from 0x%lx (relocation range: 0x%lx-0x%lx)\n",
-                         (unsigned long)&_text - __START_KERNEL,
-                         __START_KERNEL,
-                         __START_KERNEL_map,
-                         MODULES_VADDR-1);
-        else
-                pr_emerg("Kernel Offset: disabled\n");
+        pr_emerg("Kernel Offset: 0x%lx from 0x%lx "
+                 "(relocation range: 0x%lx-0x%lx)\n",
+                 (unsigned long)&_text - __START_KERNEL, __START_KERNEL,
+                 __START_KERNEL_map, MODULES_VADDR-1);
 
         return 0;
 }
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 9d2073e2ecc9..4ff5d162ff9f 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -384,7 +384,7 @@ dotraplinkage void do_bounds(struct pt_regs *regs, long error_code)
                 goto exit;
         conditional_sti(regs);
 
-        if (!user_mode(regs))
+        if (!user_mode_vm(regs))
                 die("bounds", regs, error_code);
 
         if (!cpu_feature_enabled(X86_FEATURE_MPX)) {
@@ -637,7 +637,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
          * then it's very likely the result of an icebp/int01 trap.
          * User wants a sigtrap for that.
          */
-        if (!dr6 && user_mode(regs))
+        if (!dr6 && user_mode_vm(regs))
                 user_icebp = 1;
 
         /* Catch kmemcheck conditions first of all! */
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 34f66e58a896..cdc6cf903078 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -379,7 +379,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
                  * thread's fpu state, reconstruct fxstate from the fsave
                  * header. Sanitize the copied state etc.
                  */
-                struct xsave_struct *xsave = &tsk->thread.fpu.state->xsave;
+                struct fpu *fpu = &tsk->thread.fpu;
                 struct user_i387_ia32_struct env;
                 int err = 0;
 
@@ -393,14 +393,15 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
                  */
                 drop_fpu(tsk);
 
-                if (__copy_from_user(xsave, buf_fx, state_size) ||
+                if (__copy_from_user(&fpu->state->xsave, buf_fx, state_size) ||
                     __copy_from_user(&env, buf, sizeof(env))) {
+                        fpu_finit(fpu);
                         err = -1;
                 } else {
                         sanitize_restored_xstate(tsk, &env, xstate_bv, fx_only);
-                        set_used_math();
                 }
 
+                set_used_math();
                 if (use_eager_fpu()) {
                         preempt_disable();
                         math_state_restore();
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index cc31f7c06d3d..9541ba34126b 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -507,6 +507,7 @@ static int picdev_read(struct kvm_pic *s,
                 return -EOPNOTSUPP;
 
         if (len != 1) {
+                memset(val, 0, len);
                 pr_pic_unimpl("non byte read\n");
                 return 0;
         }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f7b20b417a3a..10a481b7674d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2168,7 +2168,10 @@ static void vmx_set_msr_bitmap(struct kvm_vcpu *vcpu)
 {
         unsigned long *msr_bitmap;
 
-        if (irqchip_in_kernel(vcpu->kvm) && apic_x2apic_mode(vcpu->arch.apic)) {
+        if (is_guest_mode(vcpu))
+                msr_bitmap = vmx_msr_bitmap_nested;
+        else if (irqchip_in_kernel(vcpu->kvm) &&
+                apic_x2apic_mode(vcpu->arch.apic)) {
                 if (is_long_mode(vcpu))
                         msr_bitmap = vmx_msr_bitmap_longmode_x2apic;
                 else
@@ -9218,9 +9221,9 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
         }
 
         if (cpu_has_vmx_msr_bitmap() &&
-            exec_control & CPU_BASED_USE_MSR_BITMAPS &&
-            nested_vmx_merge_msr_bitmap(vcpu, vmcs12)) {
-                vmcs_write64(MSR_BITMAP, __pa(vmx_msr_bitmap_nested));
+            exec_control & CPU_BASED_USE_MSR_BITMAPS) {
+                nested_vmx_merge_msr_bitmap(vcpu, vmcs12);
+                /* MSR_BITMAP will be set by following vmx_set_efer. */
         } else
                 exec_control &= ~CPU_BASED_USE_MSR_BITMAPS;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bd7a70be41b3..32bf19ef3115 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2744,7 +2744,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
         case KVM_CAP_USER_NMI:
         case KVM_CAP_REINJECT_CONTROL:
         case KVM_CAP_IRQ_INJECT_STATUS:
-        case KVM_CAP_IRQFD:
         case KVM_CAP_IOEVENTFD:
         case KVM_CAP_IOEVENTFD_NO_LENGTH:
         case KVM_CAP_PIT2:
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
index 31776d0efc8c..d7ec4e251c0a 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -17,6 +17,7 @@
         .text
         .globl __kernel_sigreturn
         .type __kernel_sigreturn,@function
+        nop /* this guy is needed for .LSTARTFDEDLSI1 below (watch for HACK) */
         ALIGN
 __kernel_sigreturn:
 .LSTART_sigreturn:
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index d453a2c98ad0..81751a49d8bf 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -307,7 +307,7 @@ static int regcache_rbtree_insert_to_block(struct regmap *map,
         if (pos == 0) {
                 memmove(blk + offset * map->cache_word_size,
                         blk, rbnode->blklen * map->cache_word_size);
-                bitmap_shift_right(present, present, offset, blklen);
+                bitmap_shift_left(present, present, offset, blklen);
         }
 
         /* update the rbnode block, its size and the base register */
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index f373c35f9e1d..da84f544c544 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -608,7 +608,8 @@ static int regcache_sync_block_single(struct regmap *map, void *block,
         for (i = start; i < end; i++) {
                 regtmp = block_base + (i * map->reg_stride);
 
-                if (!regcache_reg_present(cache_present, i))
+                if (!regcache_reg_present(cache_present, i) ||
+                    !regmap_writeable(map, regtmp))
                         continue;
 
                 val = regcache_get_val(map, block, i);
@@ -677,7 +678,8 @@ static int regcache_sync_block_raw(struct regmap *map, void *block,
         for (i = start; i < end; i++) {
                 regtmp = block_base + (i * map->reg_stride);
 
-                if (!regcache_reg_present(cache_present, i)) {
+                if (!regcache_reg_present(cache_present, i) ||
+                    !regmap_writeable(map, regtmp)) {
                         ret = regcache_sync_block_raw_flush(map, &data,
                                                             base, regtmp);
                         if (ret != 0)
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 6299a50a5960..a6c3f75b4b01 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -499,7 +499,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
                 goto err_alloc;
         }
 
-        ret = request_threaded_irq(irq, NULL, regmap_irq_thread, irq_flags,
+        ret = request_threaded_irq(irq, NULL, regmap_irq_thread,
+                                   irq_flags | IRQF_ONESHOT,
                                    chip->name, d);
         if (ret != 0) {
                 dev_err(map->dev, "Failed to request IRQ %d for %s: %d\n",
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index fae2dbbf5745..72d7028f779b 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -142,6 +142,7 @@ struct ports_device {
          * notification
          */
         struct work_struct control_work;
+        struct work_struct config_work;
 
         struct list_head ports;
 
@@ -1837,10 +1838,21 @@ static void config_intr(struct virtio_device *vdev)
 
         portdev = vdev->priv;
 
+        if (!use_multiport(portdev))
+                schedule_work(&portdev->config_work);
+}
+
+static void config_work_handler(struct work_struct *work)
+{
+        struct ports_device *portdev;
+
+        portdev = container_of(work, struct ports_device, control_work);
         if (!use_multiport(portdev)) {
+                struct virtio_device *vdev;
                 struct port *port;
                 u16 rows, cols;
 
+                vdev = portdev->vdev;
                 virtio_cread(vdev, struct virtio_console_config, cols, &cols);
                 virtio_cread(vdev, struct virtio_console_config, rows, &rows);
 
@@ -2040,12 +2052,14 @@ static int virtcons_probe(struct virtio_device *vdev)
 
         virtio_device_ready(portdev->vdev);
 
+        INIT_WORK(&portdev->config_work, &config_work_handler);
+        INIT_WORK(&portdev->control_work, &control_work_handler);
+
         if (multiport) {
                 unsigned int nr_added_bufs;
 
                 spin_lock_init(&portdev->c_ivq_lock);
                 spin_lock_init(&portdev->c_ovq_lock);
-                INIT_WORK(&portdev->control_work, &control_work_handler);
 
                 nr_added_bufs = fill_queue(portdev->c_ivq,
                                            &portdev->c_ivq_lock);
@@ -2113,6 +2127,8 @@ static void virtcons_remove(struct virtio_device *vdev)
         /* Finish up work that's lined up */
         if (use_multiport(portdev))
                 cancel_work_sync(&portdev->control_work);
+        else
+                cancel_work_sync(&portdev->config_work);
 
         list_for_each_entry_safe(port, port2, &portdev->ports, list)
                 unplug_port(port);
@@ -2164,6 +2180,7 @@ static int virtcons_freeze(struct virtio_device *vdev)
 
         virtqueue_disable_cb(portdev->c_ivq);
         cancel_work_sync(&portdev->control_work);
+        cancel_work_sync(&portdev->config_work);
         /*
          * Once more: if control_work_handler() was running, it would
          * enable the cb as the last step.
diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c
index bba62f9deefb..ec57ba2bbd87 100644
--- a/drivers/clocksource/time-efm32.c
+++ b/drivers/clocksource/time-efm32.c
@@ -225,12 +225,12 @@ static int __init efm32_clockevent_init(struct device_node *np)
         clock_event_ddata.base = base;
         clock_event_ddata.periodic_top = DIV_ROUND_CLOSEST(rate, 1024 * HZ);
 
-        setup_irq(irq, &efm32_clock_event_irq);
-
         clockevents_config_and_register(&clock_event_ddata.evtdev,
                                         DIV_ROUND_CLOSEST(rate, 1024),
                                         0xf, 0xffff);
 
+        setup_irq(irq, &efm32_clock_event_irq);
+
         return 0;
 
 err_get_irq:
diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index 02268448dc85..5dcbf90b8015 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -178,10 +178,6 @@ static void __init sun5i_timer_init(struct device_node *node)
 
         ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);
 
-        ret = setup_irq(irq, &sun5i_timer_irq);
-        if (ret)
-                pr_warn("failed to setup irq %d\n", irq);
-
         /* Enable timer0 interrupt */
         val = readl(timer_base + TIMER_IRQ_EN_REG);
         writel(val | TIMER_IRQ_EN(0), timer_base + TIMER_IRQ_EN_REG);
@@ -191,6 +187,10 @@ static void __init sun5i_timer_init(struct device_node *node)
 
         clockevents_config_and_register(&sun5i_clockevent, rate,
                                         TIMER_SYNC_TICKS, 0xffffffff);
+
+        ret = setup_irq(irq, &sun5i_timer_irq);
+        if (ret)
+                pr_warn("failed to setup irq %d\n", irq);
 }
 CLOCKSOURCE_OF_DECLARE(sun5i_a13, "allwinner,sun5i-a13-hstimer",
                        sun5i_timer_init);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 7c669c328c4c..56ce8c2b5530 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1959,6 +1959,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 204312bfab2c..9c4786759f16 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -586,6 +586,7 @@
 #define USB_VENDOR_ID_LOGITECH          0x046d
 #define USB_DEVICE_ID_LOGITECH_AUDIOHUB 0x0a0e
 #define USB_DEVICE_ID_LOGITECH_T651     0xb00c
+#define USB_DEVICE_ID_LOGITECH_C077     0xc007
 #define USB_DEVICE_ID_LOGITECH_RECEIVER 0xc101
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f
@@ -898,6 +899,7 @@
 #define USB_VENDOR_ID_TIVO              0x150a
 #define USB_DEVICE_ID_TIVO_SLIDE_BT     0x1200
 #define USB_DEVICE_ID_TIVO_SLIDE        0x1201
+#define USB_DEVICE_ID_TIVO_SLIDE_PRO    0x1203
 
 #define USB_VENDOR_ID_TOPSEED           0x0766
 #define USB_DEVICE_ID_TOPSEED_CYBERLINK 0x0204
diff --git a/drivers/hid/hid-tivo.c b/drivers/hid/hid-tivo.c
index d790d8d71f7f..d98696927453 100644
--- a/drivers/hid/hid-tivo.c
+++ b/drivers/hid/hid-tivo.c
@@ -64,6 +64,7 @@ static const struct hid_device_id tivo_devices[] = {
         /* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
         { }
 };
 MODULE_DEVICE_TABLE(hid, tivo_devices);
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 9be99a67bfe2..a82127753461 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -78,6 +78,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077, HID_QUIRK_ALWAYS_POLL },
         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3_JP, HID_QUIRK_NO_INIT_REPORTS },
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 046351cf17f3..bbe32d66e500 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -551,9 +551,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
            (features->type == CINTIQ && !(data[1] & 0x40)))
                 return 1;
 
-        if (features->quirks & WACOM_QUIRK_MULTI_INPUT)
+        if (wacom->shared) {
                 wacom->shared->stylus_in_proximity = true;
 
+                if (wacom->shared->touch_down)
+                        return 1;
+        }
+
         /* in Range while exiting */
         if (((data[1] & 0xfe) == 0x20) && wacom->reporting_data) {
                 input_report_key(input, BTN_TOUCH, 0);
@@ -1043,27 +1047,28 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
         struct input_dev *input = wacom->input;
         unsigned char *data = wacom->data;
         int i;
-        int current_num_contacts = 0;
+        int current_num_contacts = data[61];
         int contacts_to_send = 0;
         int num_contacts_left = 4; /* maximum contacts per packet */
         int byte_per_packet = WACOM_BYTES_PER_24HDT_PACKET;
         int y_offset = 2;
+        static int contact_with_no_pen_down_count = 0;
 
         if (wacom->features.type == WACOM_27QHDT) {
                 current_num_contacts = data[63];
                 num_contacts_left = 10;
                 byte_per_packet = WACOM_BYTES_PER_QHDTHID_PACKET;
                 y_offset = 0;
-        } else {
-                current_num_contacts = data[61];
         }
 
         /*
          * First packet resets the counter since only the first
          * packet in series will have non-zero current_num_contacts.
          */
-        if (current_num_contacts)
+        if (current_num_contacts) {
                 wacom->num_contacts_left = current_num_contacts;
+                contact_with_no_pen_down_count = 0;
+        }
 
         contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
 
@@ -1096,15 +1101,16 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
                                 input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
                                 input_report_abs(input, ABS_MT_ORIENTATION, w > h);
                         }
+                        contact_with_no_pen_down_count++;
                 }
         }
         input_mt_report_pointer_emulation(input, true);
 
         wacom->num_contacts_left -= contacts_to_send;
-        if (wacom->num_contacts_left <= 0)
+        if (wacom->num_contacts_left <= 0) {
                 wacom->num_contacts_left = 0;
-
-        wacom->shared->touch_down = (wacom->num_contacts_left > 0);
+                wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
+        }
         return 1;
 }
 
@@ -1116,6 +1122,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
         int current_num_contacts = data[2];
         int contacts_to_send = 0;
         int x_offset = 0;
+        static int contact_with_no_pen_down_count = 0;
 
         /* MTTPC does not support Height and Width */
         if (wacom->features.type == MTTPC || wacom->features.type == MTTPC_B)
@@ -1125,8 +1132,10 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
          * First packet resets the counter since only the first
          * packet in series will have non-zero current_num_contacts.
          */
-        if (current_num_contacts)
+        if (current_num_contacts) {
                 wacom->num_contacts_left = current_num_contacts;
+                contact_with_no_pen_down_count = 0;
+        }
 
         /* There are at most 5 contacts per packet */
         contacts_to_send = min(5, wacom->num_contacts_left);
@@ -1147,15 +1156,16 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
                         int y = get_unaligned_le16(&data[offset + x_offset + 9]);
                         input_report_abs(input, ABS_MT_POSITION_X, x);
                         input_report_abs(input, ABS_MT_POSITION_Y, y);
+                        contact_with_no_pen_down_count++;
                 }
         }
         input_mt_report_pointer_emulation(input, true);
 
         wacom->num_contacts_left -= contacts_to_send;
-        if (wacom->num_contacts_left < 0)
+        if (wacom->num_contacts_left <= 0) {
                 wacom->num_contacts_left = 0;
-
-        wacom->shared->touch_down = (wacom->num_contacts_left > 0);
+                wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
+        }
         return 1;
 }
 
@@ -1193,29 +1203,25 @@ static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
 {
         unsigned char *data = wacom->data;
         struct input_dev *input = wacom->input;
-        bool prox;
+        bool prox = !wacom->shared->stylus_in_proximity;
         int x = 0, y = 0;
 
         if (wacom->features.touch_max > 1 || len > WACOM_PKGLEN_TPC2FG)
                 return 0;
 
-        if (!wacom->shared->stylus_in_proximity) {
-                if (len == WACOM_PKGLEN_TPC1FG) {
-                        prox = data[0] & 0x01;
-                        x = get_unaligned_le16(&data[1]);
-                        y = get_unaligned_le16(&data[3]);
-                } else if (len == WACOM_PKGLEN_TPC1FG_B) {
-                        prox = data[2] & 0x01;
-                        x = get_unaligned_le16(&data[3]);
-                        y = get_unaligned_le16(&data[5]);
-                } else {
-                        prox = data[1] & 0x01;
-                        x = le16_to_cpup((__le16 *)&data[2]);
-                        y = le16_to_cpup((__le16 *)&data[4]);
-                }
-        } else
-                /* force touch out when pen is in prox */
-                prox = 0;
+        if (len == WACOM_PKGLEN_TPC1FG) {
+                prox = prox && (data[0] & 0x01);
+                x = get_unaligned_le16(&data[1]);
+                y = get_unaligned_le16(&data[3]);
+        } else if (len == WACOM_PKGLEN_TPC1FG_B) {
+                prox = prox && (data[2] & 0x01);
+                x = get_unaligned_le16(&data[3]);
+                y = get_unaligned_le16(&data[5]);
+        } else {
+                prox = prox && (data[1] & 0x01);
+                x = le16_to_cpup((__le16 *)&data[2]);
+                y = le16_to_cpup((__le16 *)&data[4]);
+        }
 
         if (prox) {
                 input_report_abs(input, ABS_X, x);
@@ -1613,6 +1619,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
         struct input_dev *pad_input = wacom->pad_input;
         unsigned char *data = wacom->data;
         int i;
+        int contact_with_no_pen_down_count = 0;
 
         if (data[0] != 0x02)
             return 0;
@@ -1640,6 +1647,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
                         }
                         input_report_abs(input, ABS_MT_POSITION_X, x);
                         input_report_abs(input, ABS_MT_POSITION_Y, y);
+                        contact_with_no_pen_down_count++;
                 }
         }
 
@@ -1649,11 +1657,12 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
         input_report_key(pad_input, BTN_FORWARD, (data[1] & 0x04) != 0);
         input_report_key(pad_input, BTN_BACK, (data[1] & 0x02) != 0);
         input_report_key(pad_input, BTN_RIGHT, (data[1] & 0x01) != 0);
+        wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
 
         return 1;
 }
 
-static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
+static int wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data, int last_touch_count)
 {
         struct wacom_features *features = &wacom->features;
         struct input_dev *input = wacom->input;
@@ -1661,7 +1670,7 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
         int slot = input_mt_get_slot_by_key(input, data[0]);
 
         if (slot < 0)
-                return;
+                return 0;
 
         touch = touch && !wacom->shared->stylus_in_proximity;
 
@@ -1693,7 +1702,9 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
                 input_report_abs(input, ABS_MT_POSITION_Y, y);
                 input_report_abs(input, ABS_MT_TOUCH_MAJOR, width);
                 input_report_abs(input, ABS_MT_TOUCH_MINOR, height);
+                last_touch_count++;
         }
+        return last_touch_count;
 }
 
 static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
@@ -1718,6 +1729,7 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
         unsigned char *data = wacom->data;
         int count = data[1] & 0x07;
         int i;
+        int contact_with_no_pen_down_count = 0;
 
         if (data[0] != 0x02)
             return 0;
@@ -1728,12 +1740,15 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
                 int msg_id = data[offset];
 
                 if (msg_id >= 2 && msg_id <= 17)
-                        wacom_bpt3_touch_msg(wacom, data + offset);
+                        contact_with_no_pen_down_count = 
+                            wacom_bpt3_touch_msg(wacom, data + offset,
+                                                 contact_with_no_pen_down_count);
                 else if (msg_id == 128)
                         wacom_bpt3_button_msg(wacom, data + offset);
 
         }
         input_mt_report_pointer_emulation(input, true);
+        wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
 
         return 1;
 }
@@ -1759,6 +1774,9 @@ static int wacom_bpt_pen(struct wacom_wac *wacom)
                 return 0;
         }
 
+        if (wacom->shared->touch_down)
+                return 0;
+
         prox = (data[1] & 0x20) == 0x20;
 
         /*
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 1793aea4a7d2..6eb738ca6d2f 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1793,11 +1793,11 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor)
         tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN,
                                          IDETAPE_DSC_RW_MAX);
         printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, "
-                "%lums tDSC%s\n",
+                "%ums tDSC%s\n",
                 drive->name, tape->name, *(u16 *)&tape->caps[14],
                 (*(u16 *)&tape->caps[16] * 512) / tape->buffer_size,
                 tape->buffer_size / 1024,
-                tape->best_dsc_rw_freq * 1000 / HZ,
+                jiffies_to_msecs(tape->best_dsc_rw_freq),
                 (drive->dev_flags & IDE_DFLAG_USING_DMA) ? ", DMA" : "");
 
         ide_proc_register_driver(drive, tape->driver);
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index c7619716c31d..59040265e361 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -64,6 +64,14 @@ enum {
 #define GUID_TBL_BLK_NUM_ENTRIES 8
 #define GUID_TBL_BLK_SIZE (GUID_TBL_ENTRY_SIZE * GUID_TBL_BLK_NUM_ENTRIES)
 
+/* Counters should be saturate once they reach their maximum value */
+#define ASSIGN_32BIT_COUNTER(counter, value) do {\
+        if ((value) > U32_MAX)                   \
+                counter = cpu_to_be32(U32_MAX); \
+        else                                     \
+                counter = cpu_to_be32(value);    \
+} while (0)
+
 struct mlx4_mad_rcv_buf {
         struct ib_grh grh;
         u8 payload[256];
@@ -806,10 +814,14 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 static void edit_counter(struct mlx4_counter *cnt,
                                         struct ib_pma_portcounters *pma_cnt)
 {
-        pma_cnt->port_xmit_data = cpu_to_be32((be64_to_cpu(cnt->tx_bytes)>>2));
-        pma_cnt->port_rcv_data  = cpu_to_be32((be64_to_cpu(cnt->rx_bytes)>>2));
-        pma_cnt->port_xmit_packets = cpu_to_be32(be64_to_cpu(cnt->tx_frames));
-        pma_cnt->port_rcv_packets  = cpu_to_be32(be64_to_cpu(cnt->rx_frames));
+        ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
+                             (be64_to_cpu(cnt->tx_bytes) >> 2));
+        ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
+                             (be64_to_cpu(cnt->rx_bytes) >> 2));
+        ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
+                             be64_to_cpu(cnt->tx_frames));
+        ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
+                             be64_to_cpu(cnt->rx_frames));
 }
 
 static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index ac6e2b710ea6..b972c0b41799 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2697,8 +2697,12 @@ static void handle_bonded_port_state_event(struct work_struct *work)
         spin_lock_bh(&ibdev->iboe.lock);
         for (i = 0; i < MLX4_MAX_PORTS; ++i) {
                 struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
+                enum ib_port_state curr_port_state;
 
-                enum ib_port_state curr_port_state =
+                if (!curr_netdev)
+                        continue;
+
+                curr_port_state =
                         (netif_running(curr_netdev) &&
                          netif_carrier_ok(curr_netdev)) ?
                         IB_PORT_ACTIVE : IB_PORT_DOWN;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index f2cceb6493a0..dda605836546 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -67,9 +67,6 @@
 #define X_MAX_POSITIVE 8176
 #define Y_MAX_POSITIVE 8176
 
-/* maximum ABS_MT_POSITION displacement (in mm) */
-#define DMAX 10
-
 /*****************************************************************************
  *      Stuff we need even when we do not want native Synaptics support
  ****************************************************************************/
@@ -123,32 +120,41 @@ void synaptics_reset(struct psmouse *psmouse)
 
 static bool cr48_profile_sensor;
 
+#define ANY_BOARD_ID 0
 struct min_max_quirk {
         const char * const *pnp_ids;
+        struct {
+                unsigned long int min, max;
+        } board_id;
         int x_min, x_max, y_min, y_max;
 };
 
 static const struct min_max_quirk min_max_pnpid_table[] = {
         {
                 (const char * const []){"LEN0033", NULL},
+                {ANY_BOARD_ID, ANY_BOARD_ID},
                 1024, 5052, 2258, 4832
         },
         {
-                (const char * const []){"LEN0035", "LEN0042", NULL},
+                (const char * const []){"LEN0042", NULL},
+                {ANY_BOARD_ID, ANY_BOARD_ID},
                 1232, 5710, 1156, 4696
         },
         {
                 (const char * const []){"LEN0034", "LEN0036", "LEN0037",
                                         "LEN0039", "LEN2002", "LEN2004",
                                         NULL},
+                {ANY_BOARD_ID, 2961},
                 1024, 5112, 2024, 4832
         },
         {
                 (const char * const []){"LEN2001", NULL},
+                {ANY_BOARD_ID, ANY_BOARD_ID},
                 1024, 5022, 2508, 4832
         },
         {
                 (const char * const []){"LEN2006", NULL},
+                {ANY_BOARD_ID, ANY_BOARD_ID},
                 1264, 5675, 1171, 4688
         },
         { }
@@ -175,9 +181,7 @@ static const char * const topbuttonpad_pnp_ids[] = {
         "LEN0041",
         "LEN0042", /* Yoga */
         "LEN0045",
-        "LEN0046",
         "LEN0047",
-        "LEN0048",
         "LEN0049",
         "LEN2000",
         "LEN2001", /* Edge E431 */
@@ -235,18 +239,39 @@ static int synaptics_model_id(struct psmouse *psmouse)
         return 0;
 }
 
+static int synaptics_more_extended_queries(struct psmouse *psmouse)
+{
+        struct synaptics_data *priv = psmouse->private;
+        unsigned char buf[3];
+
+        if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf))
+                return -1;
+
+        priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2];
+
+        return 0;
+}
+
 /*
- * Read the board id from the touchpad
+ * Read the board id and the "More Extended Queries" from the touchpad
  * The board id is encoded in the "QUERY MODES" response
  */
-static int synaptics_board_id(struct psmouse *psmouse)
+static int synaptics_query_modes(struct psmouse *psmouse)
 {
         struct synaptics_data *priv = psmouse->private;
         unsigned char bid[3];
 
+        /* firmwares prior 7.5 have no board_id encoded */
+        if (SYN_ID_FULL(priv->identity) < 0x705)
+                return 0;
+
         if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
                 return -1;
         priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
+
+        if (SYN_MEXT_CAP_BIT(bid[0]))
+                return synaptics_more_extended_queries(psmouse);
+
         return 0;
 }
 
@@ -346,7 +371,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
 {
         struct synaptics_data *priv = psmouse->private;
         unsigned char resp[3];
-        int i;
 
         if (SYN_ID_MAJOR(priv->identity) < 4)
                 return 0;
@@ -358,17 +382,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
                 }
         }
 
-        for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
-                if (psmouse_matches_pnp_id(psmouse,
-                                           min_max_pnpid_table[i].pnp_ids)) {
-                        priv->x_min = min_max_pnpid_table[i].x_min;
-                        priv->x_max = min_max_pnpid_table[i].x_max;
-                        priv->y_min = min_max_pnpid_table[i].y_min;
-                        priv->y_max = min_max_pnpid_table[i].y_max;
-                        return 0;
-                }
-        }
-
         if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
             SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
                 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
@@ -377,23 +390,69 @@ static int synaptics_resolution(struct psmouse *psmouse)
                 } else {
                         priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
                         priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+                        psmouse_info(psmouse,
+                                     "queried max coordinates: x [..%d], y [..%d]\n",
+                                     priv->x_max, priv->y_max);
                 }
         }
 
-        if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
-            SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
+        if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) &&
+            (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 ||
+             /*
+              * Firmware v8.1 does not report proper number of extended
+              * capabilities, but has been proven to report correct min
+              * coordinates.
+              */
+             SYN_ID_FULL(priv->identity) == 0x801)) {
                 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
                         psmouse_warn(psmouse,
                                      "device claims to have min coordinates query, but I'm not able to read it.\n");
                 } else {
                         priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
                         priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+                        psmouse_info(psmouse,
+                                     "queried min coordinates: x [%d..], y [%d..]\n",
+                                     priv->x_min, priv->y_min);
                 }
         }
 
         return 0;
 }
 
+/*
+ * Apply quirk(s) if the hardware matches
+ */
+
+static void synaptics_apply_quirks(struct psmouse *psmouse)
+{
+        struct synaptics_data *priv = psmouse->private;
+        int i;
+
+        for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
+                if (!psmouse_matches_pnp_id(psmouse,
+                                            min_max_pnpid_table[i].pnp_ids))
+                        continue;
+
+                if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID &&
+                    priv->board_id < min_max_pnpid_table[i].board_id.min)
+                        continue;
+
+                if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID &&
+                    priv->board_id > min_max_pnpid_table[i].board_id.max)
+                        continue;
+
+                priv->x_min = min_max_pnpid_table[i].x_min;
+                priv->x_max = min_max_pnpid_table[i].x_max;
+                priv->y_min = min_max_pnpid_table[i].y_min;
+                priv->y_max = min_max_pnpid_table[i].y_max;
+                psmouse_info(psmouse,
+                             "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n",
+                             priv->x_min, priv->x_max,
+                             priv->y_min, priv->y_max);
+                break;
+        }
+}
+
 static int synaptics_query_hardware(struct psmouse *psmouse)
 {
         if (synaptics_identify(psmouse))
@@ -402,13 +461,15 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
                 return -1;
         if (synaptics_firmware_id(psmouse))
                 return -1;
-        if (synaptics_board_id(psmouse))
+        if (synaptics_query_modes(psmouse))
                 return -1;
         if (synaptics_capability(psmouse))
                 return -1;
         if (synaptics_resolution(psmouse))
                 return -1;
 
+        synaptics_apply_quirks(psmouse);
+
         return 0;
 }
 
@@ -516,18 +577,22 @@ static int synaptics_is_pt_packet(unsigned char *buf)
         return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
 }
 
-static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
+static void synaptics_pass_pt_packet(struct psmouse *psmouse,
+                                     struct serio *ptport,
+                                     unsigned char *packet)
 {
+        struct synaptics_data *priv = psmouse->private;
         struct psmouse *child = serio_get_drvdata(ptport);
 
         if (child && child->state == PSMOUSE_ACTIVATED) {
-                serio_interrupt(ptport, packet[1], 0);
+                serio_interrupt(ptport, packet[1] | priv->pt_buttons, 0);
                 serio_interrupt(ptport, packet[4], 0);
                 serio_interrupt(ptport, packet[5], 0);
                 if (child->pktsize == 4)
                         serio_interrupt(ptport, packet[2], 0);
-        } else
+        } else {
                 serio_interrupt(ptport, packet[1], 0);
+        }
 }
 
 static void synaptics_pt_activate(struct psmouse *psmouse)
@@ -605,6 +670,18 @@ static void synaptics_parse_agm(const unsigned char buf[],
         }
 }
 
+static void synaptics_parse_ext_buttons(const unsigned char buf[],
+                                        struct synaptics_data *priv,
+                                        struct synaptics_hw_state *hw)
+{
+        unsigned int ext_bits =
+                (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
+        unsigned int ext_mask = GENMASK(ext_bits - 1, 0);
+
+        hw->ext_buttons = buf[4] & ext_mask;
+        hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits;
+}
+
 static bool is_forcepad;
 
 static int synaptics_parse_hw_state(const unsigned char buf[],
@@ -691,28 +768,9 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
                         hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
                 }
 
-                if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
+                if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 &&
                     ((buf[0] ^ buf[3]) & 0x02)) {
-                        switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
-                        default:
-                                /*
-                                 * if nExtBtn is greater than 8 it should be
-                                 * considered invalid and treated as 0
-                                 */
-                                break;
-                        case 8:
-                                hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
-                                hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
-                        case 6:
-                                hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
-                                hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
-                        case 4:
-                                hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
-                                hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
-                        case 2:
-                                hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
-                                hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
-                        }
+                        synaptics_parse_ext_buttons(buf, priv, hw);
                 }
         } else {
                 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
@@ -774,12 +832,54 @@ static void synaptics_report_semi_mt_data(struct input_dev *dev,
         }
 }
 
+static void synaptics_report_ext_buttons(struct psmouse *psmouse,
+                                         const struct synaptics_hw_state *hw)
+{
+        struct input_dev *dev = psmouse->dev;
+        struct synaptics_data *priv = psmouse->private;
+        int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
+        char buf[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+        int i;
+
+        if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+                return;
+
+        /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */
+        if (SYN_ID_FULL(priv->identity) == 0x801 &&
+            !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02))
+                return;
+
+        if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) {
+                for (i = 0; i < ext_bits; i++) {
+                        input_report_key(dev, BTN_0 + 2 * i,
+                                hw->ext_buttons & (1 << i));
+                        input_report_key(dev, BTN_1 + 2 * i,
+                                hw->ext_buttons & (1 << (i + ext_bits)));
+                }
+                return;
+        }
+
+        /*
+         * This generation of touchpads has the trackstick buttons
+         * physically wired to the touchpad. Re-route them through
+         * the pass-through interface.
+         */
+        if (!priv->pt_port)
+                return;
+
+        /* The trackstick expects at most 3 buttons */
+        priv->pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons)      |
+                           SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 |
+                           SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2;
+
+        synaptics_pass_pt_packet(psmouse, priv->pt_port, buf);
+}
+
 static void synaptics_report_buttons(struct psmouse *psmouse,
                                      const struct synaptics_hw_state *hw)
 {
         struct input_dev *dev = psmouse->dev;
         struct synaptics_data *priv = psmouse->private;
-        int i;
 
         input_report_key(dev, BTN_LEFT, hw->left);
         input_report_key(dev, BTN_RIGHT, hw->right);
@@ -792,8 +892,7 @@ static void synaptics_report_buttons(struct psmouse *psmouse,
                 input_report_key(dev, BTN_BACK, hw->down);
         }
 
-        for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
-                input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
+        synaptics_report_ext_buttons(psmouse, hw);
 }
 
 static void synaptics_report_mt_data(struct psmouse *psmouse,
@@ -813,7 +912,7 @@ static void synaptics_report_mt_data(struct psmouse *psmouse,
                 pos[i].y = synaptics_invert_y(hw[i]->y);
         }
 
-        input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
+        input_mt_assign_slots(dev, slot, pos, nsemi, 0);
 
         for (i = 0; i < nsemi; i++) {
                 input_mt_slot(dev, slot[i]);
@@ -1014,7 +1113,8 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
                 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
                     synaptics_is_pt_packet(psmouse->packet)) {
                         if (priv->pt_port)
-                                synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
+                                synaptics_pass_pt_packet(psmouse, priv->pt_port,
+                                                         psmouse->packet);
                 } else
                         synaptics_process_packet(psmouse);
 
@@ -1116,8 +1216,9 @@ static void set_input_params(struct psmouse *psmouse,
                 __set_bit(BTN_BACK, dev->keybit);
         }
 
-        for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
-                __set_bit(BTN_0 + i, dev->keybit);
+        if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
+                for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+                        __set_bit(BTN_0 + i, dev->keybit);
 
         __clear_bit(EV_REL, dev->evbit);
         __clear_bit(REL_X, dev->relbit);
@@ -1125,7 +1226,8 @@ static void set_input_params(struct psmouse *psmouse,
 
         if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
                 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
-                if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
+                if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
+                    !SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
                         __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
                 /* Clickpads report only left button */
                 __clear_bit(BTN_RIGHT, dev->keybit);
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index aedc3299b14e..ee4bd0d12b26 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -22,6 +22,7 @@
 #define SYN_QUE_EXT_CAPAB_0C            0x0c
 #define SYN_QUE_EXT_MAX_COORDS          0x0d
 #define SYN_QUE_EXT_MIN_COORDS          0x0f
+#define SYN_QUE_MEXT_CAPAB_10           0x10
 
 /* synatics modes */
 #define SYN_BIT_ABSOLUTE_MODE           (1 << 7)
@@ -53,6 +54,7 @@
 #define SYN_EXT_CAP_REQUESTS(c)         (((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)     (((ec) & 0x00f000) >> 12)
 #define SYN_CAP_PRODUCT_ID(ec)          (((ec) & 0xff0000) >> 16)
+#define SYN_MEXT_CAP_BIT(m)             ((m) & (1 << 1))
 
 /*
  * The following describes response for the 0x0c query.
@@ -89,6 +91,30 @@
 #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
 #define SYN_CAP_IMAGE_SENSOR(ex0c)      ((ex0c) & 0x000800)
 
+/*
+ * The following descibes response for the 0x10 query.
+ *
+ * byte mask    name                    meaning
+ * ---- ----    -------                 ------------
+ * 1    0x01    ext buttons are stick   buttons exported in the extended
+ *                                      capability are actually meant to be used
+ *                                      by the tracktick (pass-through).
+ * 1    0x02    SecurePad               the touchpad is a SecurePad, so it
+ *                                      contains a built-in fingerprint reader.
+ * 1    0xe0    more ext count          how many more extented queries are
+ *                                      available after this one.
+ * 2    0xff    SecurePad width         the width of the SecurePad fingerprint
+ *                                      reader.
+ * 3    0xff    SecurePad height        the height of the SecurePad fingerprint
+ *                                      reader.
+ */
+#define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & 0x010000)
+#define SYN_CAP_SECUREPAD(ex10)         ((ex10) & 0x020000)
+
+#define SYN_CAP_EXT_BUTTON_STICK_L(eb)  (!!((eb) & 0x01))
+#define SYN_CAP_EXT_BUTTON_STICK_M(eb)  (!!((eb) & 0x02))
+#define SYN_CAP_EXT_BUTTON_STICK_R(eb)  (!!((eb) & 0x04))
+
 /* synaptics modes query bits */
 #define SYN_MODE_ABSOLUTE(m)            ((m) & (1 << 7))
 #define SYN_MODE_RATE(m)                ((m) & (1 << 6))
@@ -143,6 +169,7 @@ struct synaptics_data {
         unsigned long int capabilities;         /* Capabilities */
         unsigned long int ext_cap;              /* Extended Capabilities */
         unsigned long int ext_cap_0c;           /* Ext Caps from 0x0c query */
+        unsigned long int ext_cap_10;           /* Ext Caps from 0x10 query */
         unsigned long int identity;             /* Identification */
         unsigned int x_res, y_res;              /* X/Y resolution in units/mm */
         unsigned int x_max, y_max;              /* Max coordinates (from FW) */
@@ -156,6 +183,7 @@ struct synaptics_data {
         bool disable_gesture;                   /* disable gestures */
 
         struct serio *pt_port;                  /* Pass-through serio port */
+        unsigned char pt_buttons;               /* Pass-through buttons */
 
         /*
          * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index 6a7447c304ac..358a574d9e8b 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1609,7 +1609,7 @@ icn_setup(char *line)
         if (ints[0] > 1)
                 membase = (unsigned long)ints[2];
         if (str && *str) {
-                strcpy(sid, str);
+                strlcpy(sid, str, sizeof(sid));
                 icn_id = sid;
                 if ((p = strchr(sid, ','))) {
                         *p++ = 0;
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 37de0173b6d2..74adcd2c967e 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -289,9 +289,16 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
         struct request_queue *q = bdev_get_queue(where->bdev);
         unsigned short logical_block_size = queue_logical_block_size(q);
         sector_t num_sectors;
+        unsigned int uninitialized_var(special_cmd_max_sectors);
 
-        /* Reject unsupported discard requests */
-        if ((rw & REQ_DISCARD) && !blk_queue_discard(q)) {
+        /*
+         * Reject unsupported discard and write same requests.
+         */
+        if (rw & REQ_DISCARD)
+                special_cmd_max_sectors = q->limits.max_discard_sectors;
+        else if (rw & REQ_WRITE_SAME)
+                special_cmd_max_sectors = q->limits.max_write_same_sectors;
+        if ((rw & (REQ_DISCARD | REQ_WRITE_SAME)) && special_cmd_max_sectors == 0) {
                 dec_count(io, region, -EOPNOTSUPP);
                 return;
         }
@@ -317,7 +324,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
                 store_io_and_region_in_bio(bio, io, region);
 
                 if (rw & REQ_DISCARD) {
-                        num_sectors = min_t(sector_t, q->limits.max_discard_sectors, remaining);
+                        num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining);
                         bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
                         remaining -= num_sectors;
                 } else if (rw & REQ_WRITE_SAME) {
@@ -326,7 +333,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
                          */
                         dp->get_page(dp, &page, &len, &offset);
                         bio_add_page(bio, page, logical_block_size, offset);
-                        num_sectors = min_t(sector_t, q->limits.max_write_same_sectors, remaining);
+                        num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining);
                         bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
 
                         offset = 0;
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 8b204ae216ab..f83a0f3fc365 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -20,6 +20,8 @@
 #include <linux/log2.h>
 #include <linux/dm-kcopyd.h>
 
+#include "dm.h"
+
 #include "dm-exception-store.h"
 
 #define DM_MSG_PREFIX "snapshots"
@@ -291,12 +293,23 @@ struct origin {
 };
 
 /*
+ * This structure is allocated for each origin target
+ */
+struct dm_origin {
+        struct dm_dev *dev;
+        struct dm_target *ti;
+        unsigned split_boundary;
+        struct list_head hash_list;
+};
+
+/*
  * Size of the hash table for origin volumes. If we make this
  * the size of the minors list then it should be nearly perfect
  */
 #define ORIGIN_HASH_SIZE 256
 #define ORIGIN_MASK      0xFF
 static struct list_head *_origins;
+static struct list_head *_dm_origins;
 static struct rw_semaphore _origins_lock;
 
 static DECLARE_WAIT_QUEUE_HEAD(_pending_exceptions_done);
@@ -310,12 +323,22 @@ static int init_origin_hash(void)
         _origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
                            GFP_KERNEL);
         if (!_origins) {
-                DMERR("unable to allocate memory");
+                DMERR("unable to allocate memory for _origins");
                 return -ENOMEM;
         }
-
         for (i = 0; i < ORIGIN_HASH_SIZE; i++)
                 INIT_LIST_HEAD(_origins + i);
+
+        _dm_origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
+                              GFP_KERNEL);
+        if (!_dm_origins) {
+                DMERR("unable to allocate memory for _dm_origins");
+                kfree(_origins);
+                return -ENOMEM;
+        }
+        for (i = 0; i < ORIGIN_HASH_SIZE; i++)
+                INIT_LIST_HEAD(_dm_origins + i);
+
         init_rwsem(&_origins_lock);
 
         return 0;
@@ -324,6 +347,7 @@ static int init_origin_hash(void)
 static void exit_origin_hash(void)
 {
         kfree(_origins);
+        kfree(_dm_origins);
 }
 
 static unsigned origin_hash(struct block_device *bdev)
@@ -350,6 +374,30 @@ static void __insert_origin(struct origin *o)
         list_add_tail(&o->hash_list, sl);
 }
 
+static struct dm_origin *__lookup_dm_origin(struct block_device *origin)
+{
+        struct list_head *ol;
+        struct dm_origin *o;
+
+        ol = &_dm_origins[origin_hash(origin)];
+        list_for_each_entry (o, ol, hash_list)
+                if (bdev_equal(o->dev->bdev, origin))
+                        return o;
+
+        return NULL;
+}
+
+static void __insert_dm_origin(struct dm_origin *o)
+{
+        struct list_head *sl = &_dm_origins[origin_hash(o->dev->bdev)];
+        list_add_tail(&o->hash_list, sl);
+}
+
+static void __remove_dm_origin(struct dm_origin *o)
+{
+        list_del(&o->hash_list);
+}
+
 /*
  * _origins_lock must be held when calling this function.
  * Returns number of snapshots registered using the supplied cow device, plus:
@@ -1840,9 +1888,40 @@ static int snapshot_preresume(struct dm_target *ti)
 static void snapshot_resume(struct dm_target *ti)
 {
         struct dm_snapshot *s = ti->private;
-        struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
+        struct dm_snapshot *snap_src = NULL, *snap_dest = NULL, *snap_merging = NULL;
+        struct dm_origin *o;
+        struct mapped_device *origin_md = NULL;
+        bool must_restart_merging = false;
 
         down_read(&_origins_lock);
+
+        o = __lookup_dm_origin(s->origin->bdev);
+        if (o)
+                origin_md = dm_table_get_md(o->ti->table);
+        if (!origin_md) {
+                (void) __find_snapshots_sharing_cow(s, NULL, NULL, &snap_merging);
+                if (snap_merging)
+                        origin_md = dm_table_get_md(snap_merging->ti->table);
+        }
+        if (origin_md == dm_table_get_md(ti->table))
+                origin_md = NULL;
+        if (origin_md) {
+                if (dm_hold(origin_md))
+                        origin_md = NULL;
+        }
+
+        up_read(&_origins_lock);
+
+        if (origin_md) {
+                dm_internal_suspend_fast(origin_md);
+                if (snap_merging && test_bit(RUNNING_MERGE, &snap_merging->state_bits)) {
+                        must_restart_merging = true;
+                        stop_merge(snap_merging);
+                }
+        }
+
+        down_read(&_origins_lock);
+
         (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
         if (snap_src && snap_dest) {
                 down_write(&snap_src->lock);
@@ -1851,8 +1930,16 @@ static void snapshot_resume(struct dm_target *ti)
                 up_write(&snap_dest->lock);
                 up_write(&snap_src->lock);
         }
+
         up_read(&_origins_lock);
 
+        if (origin_md) {
+                if (must_restart_merging)
+                        start_merge(snap_merging);
+                dm_internal_resume_fast(origin_md);
+                dm_put(origin_md);
+        }
+
         /* Now we have correct chunk size, reregister */
         reregister_snapshot(s);
 
@@ -2133,11 +2220,6 @@ static int origin_write_extent(struct dm_snapshot *merging_snap,
  * Origin: maps a linear range of a device, with hooks for snapshotting.
  */
 
-struct dm_origin {
-        struct dm_dev *dev;
-        unsigned split_boundary;
-};
-
 /*
  * Construct an origin mapping: <dev_path>
  * The context for an origin is merely a 'struct dm_dev *'
@@ -2166,6 +2248,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 goto bad_open;
         }
 
+        o->ti = ti;
         ti->private = o;
         ti->num_flush_bios = 1;
 
@@ -2180,6 +2263,7 @@ bad_alloc:
 static void origin_dtr(struct dm_target *ti)
 {
         struct dm_origin *o = ti->private;
+
         dm_put_device(ti, o->dev);
         kfree(o);
 }
@@ -2216,6 +2300,19 @@ static void origin_resume(struct dm_target *ti)
         struct dm_origin *o = ti->private;
 
         o->split_boundary = get_origin_minimum_chunksize(o->dev->bdev);
+
+        down_write(&_origins_lock);
+        __insert_dm_origin(o);
+        up_write(&_origins_lock);
+}
+
+static void origin_postsuspend(struct dm_target *ti)
+{
+        struct dm_origin *o = ti->private;
+
+        down_write(&_origins_lock);
+        __remove_dm_origin(o);
+        up_write(&_origins_lock);
 }
 
 static void origin_status(struct dm_target *ti, status_type_t type,
@@ -2258,12 +2355,13 @@ static int origin_iterate_devices(struct dm_target *ti,
 
 static struct target_type origin_target = {
         .name    = "snapshot-origin",
-        .version = {1, 8, 1},
+        .version = {1, 9, 0},
         .module  = THIS_MODULE,
         .ctr     = origin_ctr,
         .dtr     = origin_dtr,
         .map     = origin_map,
         .resume  = origin_resume,
+        .postsuspend = origin_postsuspend,
         .status  = origin_status,
         .merge   = origin_merge,
         .iterate_devices = origin_iterate_devices,
@@ -2271,7 +2369,7 @@ static struct target_type origin_target = {
 
 static struct target_type snapshot_target = {
         .name    = "snapshot",
-        .version = {1, 12, 0},
+        .version = {1, 13, 0},
         .module  = THIS_MODULE,
         .ctr     = snapshot_ctr,
         .dtr     = snapshot_dtr,
@@ -2285,7 +2383,7 @@ static struct target_type snapshot_target = {
 
 static struct target_type merge_target = {
         .name    = dm_snapshot_merge_target_name,
-        .version = {1, 2, 0},
+        .version = {1, 3, 0},
         .module  = THIS_MODULE,
         .ctr     = snapshot_ctr,
         .dtr     = snapshot_dtr,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 654773cb1eee..921aafd12aee 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2358,17 +2358,6 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
                 return DM_MAPIO_REMAPPED;
 
         case -ENODATA:
-                if (get_pool_mode(tc->pool) == PM_READ_ONLY) {
-                        /*
-                         * This block isn't provisioned, and we have no way
-                         * of doing so.
-                         */
-                        handle_unserviceable_bio(tc->pool, bio);
-                        cell_defer_no_holder(tc, virt_cell);
-                        return DM_MAPIO_SUBMITTED;
-                }
-                /* fall through */
-
         case -EWOULDBLOCK:
                 thin_defer_cell(tc, virt_cell);
                 return DM_MAPIO_SUBMITTED;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 73f28802dc7a..9b641b38b857 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2616,6 +2616,19 @@ void dm_get(struct mapped_device *md)
         BUG_ON(test_bit(DMF_FREEING, &md->flags));
 }
 
+int dm_hold(struct mapped_device *md)
+{
+        spin_lock(&_minor_lock);
+        if (test_bit(DMF_FREEING, &md->flags)) {
+                spin_unlock(&_minor_lock);
+                return -EBUSY;
+        }
+        dm_get(md);
+        spin_unlock(&_minor_lock);
+        return 0;
+}
+EXPORT_SYMBOL_GPL(dm_hold);
+
 const char *dm_device_name(struct mapped_device *md)
 {
         return md->name;
@@ -2638,10 +2651,16 @@ static void __dm_destroy(struct mapped_device *md, bool wait)
         if (dm_request_based(md))
                 flush_kthread_worker(&md->kworker);
 
+        /*
+         * Take suspend_lock so that presuspend and postsuspend methods
+         * do not race with internal suspend.
+         */
+        mutex_lock(&md->suspend_lock);
         if (!dm_suspended_md(md)) {
                 dm_table_presuspend_targets(map);
                 dm_table_postsuspend_targets(map);
         }
+        mutex_unlock(&md->suspend_lock);
 
         /* dm_put_live_table must be before msleep, otherwise deadlock is possible */
         dm_put_live_table(md, srcu_idx);
@@ -3115,6 +3134,7 @@ void dm_internal_suspend_fast(struct mapped_device *md)
         flush_workqueue(md->wq);
         dm_wait_for_completion(md, TASK_UNINTERRUPTIBLE);
 }
+EXPORT_SYMBOL_GPL(dm_internal_suspend_fast);
 
 void dm_internal_resume_fast(struct mapped_device *md)
 {
@@ -3126,6 +3146,7 @@ void dm_internal_resume_fast(struct mapped_device *md)
 done:
         mutex_unlock(&md->suspend_lock);
 }
+EXPORT_SYMBOL_GPL(dm_internal_resume_fast);
 
 /*-----------------------------------------------------------------
  * Event notification.
diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c
index e9f1d8d84613..c53f14a7ce54 100644
--- a/drivers/mmc/core/pwrseq_simple.c
+++ b/drivers/mmc/core/pwrseq_simple.c
@@ -124,7 +124,7 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
                     PTR_ERR(pwrseq->reset_gpios[i]) != -ENOSYS) {
                         ret = PTR_ERR(pwrseq->reset_gpios[i]);
 
-                        while (--i)
+                        while (i--)
                                 gpiod_put(pwrseq->reset_gpios[i]);
 
                         goto clk_put;
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index da4c79259f67..16e34b37d134 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -425,9 +425,10 @@ retry:
                                         ubi_warn(ubi, "corrupted VID header at PEB %d, LEB %d:%d",
                                                  pnum, vol_id, lnum);
                                         err = -EBADMSG;
-                                } else
+                                } else {
                                         err = -EINVAL;
                                         ubi_ro_mode(ubi);
+                                }
                         }
                         goto out_free;
                 } else if (err == UBI_IO_BITFLIPS)
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 98d73aab52fe..58808f651452 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -131,7 +131,7 @@ config CAN_RCAR
 
 config CAN_XILINXCAN
         tristate "Xilinx CAN"
-        depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
+        depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST
         depends on COMMON_CLK && HAS_IOMEM
         ---help---
           Xilinx CAN driver. This driver supports both soft AXI CAN IP and
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index a316fa4b91ab..e97a08ce0b90 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -14,6 +14,7 @@
  * Copyright (C) 2015 Valeo S.A.
  */
 
+#include <linux/spinlock.h>
 #include <linux/kernel.h>
 #include <linux/completion.h>
 #include <linux/module.h>
@@ -467,10 +468,11 @@ struct kvaser_usb {
 struct kvaser_usb_net_priv {
         struct can_priv can;
 
-        atomic_t active_tx_urbs;
-        struct usb_anchor tx_submitted;
+        spinlock_t tx_contexts_lock;
+        int active_tx_contexts;
         struct kvaser_usb_tx_urb_context tx_contexts[MAX_TX_URBS];
 
+        struct usb_anchor tx_submitted;
         struct completion start_comp, stop_comp;
 
         struct kvaser_usb *dev;
@@ -694,6 +696,7 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
         struct kvaser_usb_net_priv *priv;
         struct sk_buff *skb;
         struct can_frame *cf;
+        unsigned long flags;
         u8 channel, tid;
 
         channel = msg->u.tx_acknowledge_header.channel;
@@ -737,12 +740,15 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 
         stats->tx_packets++;
         stats->tx_bytes += context->dlc;
-        can_get_echo_skb(priv->netdev, context->echo_index);
 
-        context->echo_index = MAX_TX_URBS;
-        atomic_dec(&priv->active_tx_urbs);
+        spin_lock_irqsave(&priv->tx_contexts_lock, flags);
 
+        can_get_echo_skb(priv->netdev, context->echo_index);
+        context->echo_index = MAX_TX_URBS;
+        --priv->active_tx_contexts;
         netif_wake_queue(priv->netdev);
+
+        spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 }
 
 static void kvaser_usb_simple_msg_callback(struct urb *urb)
@@ -803,17 +809,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv,
         return 0;
 }
 
-static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
-{
-        int i;
-
-        usb_kill_anchored_urbs(&priv->tx_submitted);
-        atomic_set(&priv->active_tx_urbs, 0);
-
-        for (i = 0; i < MAX_TX_URBS; i++)
-                priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-}
-
 static void kvaser_usb_rx_error_update_can_state(struct kvaser_usb_net_priv *priv,
                                                  const struct kvaser_usb_error_summary *es,
                                                  struct can_frame *cf)
@@ -1515,6 +1510,24 @@ error:
         return err;
 }
 
+static void kvaser_usb_reset_tx_urb_contexts(struct kvaser_usb_net_priv *priv)
+{
+        int i;
+
+        priv->active_tx_contexts = 0;
+        for (i = 0; i < MAX_TX_URBS; i++)
+                priv->tx_contexts[i].echo_index = MAX_TX_URBS;
+}
+
+/* This method might sleep. Do not call it in the atomic context
+ * of URB completions.
+ */
+static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
+{
+        usb_kill_anchored_urbs(&priv->tx_submitted);
+        kvaser_usb_reset_tx_urb_contexts(priv);
+}
+
 static void kvaser_usb_unlink_all_urbs(struct kvaser_usb *dev)
 {
         int i;
@@ -1634,6 +1647,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
         struct kvaser_msg *msg;
         int i, err, ret = NETDEV_TX_OK;
         u8 *msg_tx_can_flags = NULL;            /* GCC */
+        unsigned long flags;
 
         if (can_dropped_invalid_skb(netdev, skb))
                 return NETDEV_TX_OK;
@@ -1687,12 +1701,21 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
         if (cf->can_id & CAN_RTR_FLAG)
                 *msg_tx_can_flags |= MSG_FLAG_REMOTE_FRAME;
 
+        spin_lock_irqsave(&priv->tx_contexts_lock, flags);
         for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++) {
                 if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) {
                         context = &priv->tx_contexts[i];
+
+                        context->echo_index = i;
+                        can_put_echo_skb(skb, netdev, context->echo_index);
+                        ++priv->active_tx_contexts;
+                        if (priv->active_tx_contexts >= MAX_TX_URBS)
+                                netif_stop_queue(netdev);
+
                         break;
                 }
         }
+        spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
         /* This should never happen; it implies a flow control bug */
         if (!context) {
@@ -1704,7 +1727,6 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
         }
 
         context->priv = priv;
-        context->echo_index = i;
         context->dlc = cf->can_dlc;
 
         msg->u.tx_can.tid = context->echo_index;
@@ -1716,18 +1738,17 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
                           kvaser_usb_write_bulk_callback, context);
         usb_anchor_urb(urb, &priv->tx_submitted);
 
-        can_put_echo_skb(skb, netdev, context->echo_index);
-
-        atomic_inc(&priv->active_tx_urbs);
-
-        if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS)
-                netif_stop_queue(netdev);
-
         err = usb_submit_urb(urb, GFP_ATOMIC);
         if (unlikely(err)) {
+                spin_lock_irqsave(&priv->tx_contexts_lock, flags);
+
                 can_free_echo_skb(netdev, context->echo_index);
+                context->echo_index = MAX_TX_URBS;
+                --priv->active_tx_contexts;
+                netif_wake_queue(netdev);
+
+                spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
-                atomic_dec(&priv->active_tx_urbs);
                 usb_unanchor_urb(urb);
 
                 stats->tx_dropped++;
@@ -1854,7 +1875,7 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
         struct kvaser_usb *dev = usb_get_intfdata(intf);
         struct net_device *netdev;
         struct kvaser_usb_net_priv *priv;
-        int i, err;
+        int err;
 
         err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel);
         if (err)
@@ -1868,19 +1889,17 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 
         priv = netdev_priv(netdev);
 
+        init_usb_anchor(&priv->tx_submitted);
         init_completion(&priv->start_comp);
         init_completion(&priv->stop_comp);
 
-        init_usb_anchor(&priv->tx_submitted);
-        atomic_set(&priv->active_tx_urbs, 0);
-
-        for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++)
-                priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-
         priv->dev = dev;
         priv->netdev = netdev;
         priv->channel = channel;
 
+        spin_lock_init(&priv->tx_contexts_lock);
+        kvaser_usb_reset_tx_urb_contexts(priv);
+
         priv->can.state = CAN_STATE_STOPPED;
         priv->can.clock.freq = CAN_USB_CLOCK;
         priv->can.bittiming_const = &kvaser_usb_bittiming_const;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index bef750a09027..996e215fc324 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12769,7 +12769,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
                 NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
                 NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |
                 NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
-        if (!CHIP_IS_E1x(bp)) {
+        if (!chip_is_e1x) {
                 dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |
                                     NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT;
                 dev->hw_enc_features =
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 853c38997c82..1abdfa123c6c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -1120,7 +1120,7 @@ int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
                 }
 
                 /* Installed successfully, update the cached header too. */
-                memcpy(card_fw, fs_fw, sizeof(*card_fw));
+                *card_fw = *fs_fw;
                 card_fw_usable = 1;
                 *reset = 0;     /* already reset as part of load_fw */
         }
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 3b42556f7f8d..ed41559bae77 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -589,7 +589,7 @@ static void tulip_tx_timeout(struct net_device *dev)
                                (unsigned int)tp->rx_ring[i].buffer1,
                                (unsigned int)tp->rx_ring[i].buffer2,
                                buf[0], buf[1], buf[2]);
-                        for (j = 0; buf[j] != 0xee && j < 1600; j++)
+                        for (j = 0; ((j < 1600) && buf[j] != 0xee); j++)
                                 if (j < 100)
                                         pr_cont(" %02x", buf[j]);
                         pr_cont(" j=%d\n", j);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 99492b7e3713..78e1ce09b1ab 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1189,13 +1189,12 @@ static void
 fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 {
         struct  fec_enet_private *fep;
-        struct bufdesc *bdp, *bdp_t;
+        struct bufdesc *bdp;
         unsigned short status;
         struct  sk_buff *skb;
         struct fec_enet_priv_tx_q *txq;
         struct netdev_queue *nq;
         int     index = 0;
-        int     i, bdnum;
         int     entries_free;
 
         fep = netdev_priv(ndev);
@@ -1216,29 +1215,18 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
                 if (bdp == txq->cur_tx)
                         break;
 
-                bdp_t = bdp;
-                bdnum = 1;
-                index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-                skb = txq->tx_skbuff[index];
-                while (!skb) {
-                        bdp_t = fec_enet_get_nextdesc(bdp_t, fep, queue_id);
-                        index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-                        skb = txq->tx_skbuff[index];
-                        bdnum++;
-                }
-                if (skb_shinfo(skb)->nr_frags &&
-                    (status = bdp_t->cbd_sc) & BD_ENET_TX_READY)
-                        break;
+                index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep);
 
-                for (i = 0; i < bdnum; i++) {
-                        if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
-                                dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
-                                                 bdp->cbd_datlen, DMA_TO_DEVICE);
-                        bdp->cbd_bufaddr = 0;
-                        if (i < bdnum - 1)
-                                bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
-                }
+                skb = txq->tx_skbuff[index];
                 txq->tx_skbuff[index] = NULL;
+                if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
+                        dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
+                                        bdp->cbd_datlen, DMA_TO_DEVICE);
+                bdp->cbd_bufaddr = 0;
+                if (!skb) {
+                        bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
+                        continue;
+                }
 
                 /* Check for errors. */
                 if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC |
@@ -1479,8 +1467,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 
                         vlan_packet_rcvd = true;
 
-                        skb_copy_to_linear_data_offset(skb, VLAN_HLEN,
-                                                       data, (2 * ETH_ALEN));
+                        memmove(skb->data + VLAN_HLEN, data, ETH_ALEN * 2);
                         skb_pull(skb, VLAN_HLEN);
                 }
 
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 072426a72745..cd7675ac5bf9 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1136,6 +1136,8 @@ restart_poll:
         ibmveth_replenish_task(adapter);
 
         if (frames_processed < budget) {
+                napi_complete(napi);
+
                 /* We think we are done - reenable interrupts,
                  * then check once more to make sure we are done.
                  */
@@ -1144,8 +1146,6 @@ restart_poll:
 
                 BUG_ON(lpar_rc != H_SUCCESS);
 
-                napi_complete(napi);
-
                 if (ibmveth_rxq_pending_buffer(adapter) &&
                     napi_reschedule(napi)) {
                         lpar_rc = h_vio_signal(adapter->vdev->unit_address,
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 2a210c4efb89..ebce5bb24df9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1698,8 +1698,6 @@ int mlx4_en_start_port(struct net_device *dev)
         /* Schedule multicast task to populate multicast list */
         queue_work(mdev->workqueue, &priv->rx_mode_task);
 
-        mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
-
 #ifdef CONFIG_MLX4_EN_VXLAN
         if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
                 vxlan_get_rx_port(dev);
@@ -2853,6 +2851,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
                 queue_delayed_work(mdev->workqueue, &priv->service_task,
                                    SERVICE_TASK_DELAY);
 
+        mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
+
         return 0;
 
 out:
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 2a8268e6be15..ebbe244e80dd 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -453,7 +453,7 @@ struct mlx4_en_port_stats {
         unsigned long rx_chksum_none;
         unsigned long rx_chksum_complete;
         unsigned long tx_chksum_offload;
-#define NUM_PORT_STATS          9
+#define NUM_PORT_STATS          10
 };
 
 struct mlx4_en_perf_stats {
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 5d093dc0f5f5..8678e39aba08 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2248,10 +2248,9 @@ static int smc_drv_probe(struct platform_device *pdev)
         const struct of_device_id *match = NULL;
         struct smc_local *lp;
         struct net_device *ndev;
-        struct resource *res;
+        struct resource *res, *ires;
         unsigned int __iomem *addr;
         unsigned long irq_flags = SMC_IRQ_FLAGS;
-        unsigned long irq_resflags;
         int ret;
 
         ndev = alloc_etherdev(sizeof(struct smc_local));
@@ -2343,19 +2342,16 @@ static int smc_drv_probe(struct platform_device *pdev)
                 goto out_free_netdev;
         }
 
-        ndev->irq = platform_get_irq(pdev, 0);
-        if (ndev->irq <= 0) {
+        ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (!ires) {
                 ret = -ENODEV;
                 goto out_release_io;
         }
-        /*
-         * If this platform does not specify any special irqflags, or if
-         * the resource supplies a trigger, override the irqflags with
-         * the trigger flags from the resource.
-         */
-        irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq));
-        if (irq_flags == -1 || irq_resflags & IRQF_TRIGGER_MASK)
-                irq_flags = irq_resflags & IRQF_TRIGGER_MASK;
+
+        ndev->irq = ires->start;
+
+        if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK)
+                irq_flags = ires->flags & IRQF_TRIGGER_MASK;
 
         ret = smc_request_attrib(pdev, ndev);
         if (ret)
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index a495931a66a1..0e0fbb5842b3 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -498,9 +498,9 @@ static int w5100_napi_poll(struct napi_struct *napi, int budget)
         }
 
         if (rx_count < budget) {
+                napi_complete(napi);
                 w5100_write(priv, W5100_IMR, IR_S0);
                 mmiowb();
-                napi_complete(napi);
         }
 
         return rx_count;
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 09322d9db578..4b310002258d 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -418,9 +418,9 @@ static int w5300_napi_poll(struct napi_struct *napi, int budget)
         }
 
         if (rx_count < budget) {
+                napi_complete(napi);
                 w5300_write(priv, W5300_IMR, IR_S0);
                 mmiowb();
-                napi_complete(napi);
         }
 
         return rx_count;
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 3eed708a6182..fe48f4c51373 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -300,9 +300,18 @@ static const struct driver_info	cx82310_info = {
         .tx_fixup       = cx82310_tx_fixup,
 };
 
+#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \
+        .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+                       USB_DEVICE_ID_MATCH_DEV_INFO, \
+        .idVendor = (vend), \
+        .idProduct = (prod), \
+        .bDeviceClass = (cl), \
+        .bDeviceSubClass = (sc), \
+        .bDeviceProtocol = (pr)
+
 static const struct usb_device_id products[] = {
         {
-                USB_DEVICE_AND_INTERFACE_INFO(0x0572, 0xcb01, 0xff, 0, 0),
+                USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0),
                 .driver_info = (unsigned long) &cx82310_info
         },
         { },
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index f1ff3666f090..59b0e9754ae3 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1448,8 +1448,10 @@ static void virtnet_free_queues(struct virtnet_info *vi)
 {
         int i;
 
-        for (i = 0; i < vi->max_queue_pairs; i++)
+        for (i = 0; i < vi->max_queue_pairs; i++) {
+                napi_hash_del(&vi->rq[i].napi);
                 netif_napi_del(&vi->rq[i].napi);
+        }
 
         kfree(vi->rq);
         kfree(vi->sq);
@@ -1948,11 +1950,8 @@ static int virtnet_freeze(struct virtio_device *vdev)
         cancel_delayed_work_sync(&vi->refill);
 
         if (netif_running(vi->dev)) {
-                for (i = 0; i < vi->max_queue_pairs; i++) {
+                for (i = 0; i < vi->max_queue_pairs; i++)
                         napi_disable(&vi->rq[i].napi);
-                        napi_hash_del(&vi->rq[i].napi);
-                        netif_napi_del(&vi->rq[i].napi);
-                }
         }
 
         remove_vq_common(vi);
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 1e0a775ea882..f8528a4cf54f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1218,7 +1218,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
                         goto drop;
 
                 flags &= ~VXLAN_HF_RCO;
-                vni &= VXLAN_VID_MASK;
+                vni &= VXLAN_VNI_MASK;
         }
 
         /* For backwards compatibility, only allow reserved fields to be
@@ -1239,7 +1239,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
                 flags &= ~VXLAN_GBP_USED_BITS;
         }
 
-        if (flags || (vni & ~VXLAN_VID_MASK)) {
+        if (flags || vni & ~VXLAN_VNI_MASK) {
                 /* If there are any unprocessed flags remaining treat
                  * this as a malformed packet. This behavior diverges from
                  * VXLAN RFC (RFC7348) which stipulates that bits in reserved
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ccbdb05b28cd..75345c1e8c34 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5370,6 +5370,7 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy,
         case 0x432a: /* BCM4321 */
         case 0x432d: /* BCM4322 */
         case 0x4352: /* BCM43222 */
+        case 0x435a: /* BCM43228 */
         case 0x4333: /* BCM4331 */
         case 0x43a2: /* BCM4360 */
         case 0x43b3: /* BCM4352 */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
index 50cdf7090198..8eff2753abad 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
@@ -39,13 +39,22 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
         void *dcmd_buf = NULL, *wr_pointer;
         u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
 
-        brcmf_dbg(TRACE, "cmd %x set %d len %d\n", cmdhdr->cmd, cmdhdr->set,
-                  cmdhdr->len);
+        if (len < sizeof(*cmdhdr)) {
+                brcmf_err("vendor command too short: %d\n", len);
+                return -EINVAL;
+        }
 
         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
         ifp = vif->ifp;
 
-        len -= sizeof(struct brcmf_vndr_dcmd_hdr);
+        brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd);
+
+        if (cmdhdr->offset > len) {
+                brcmf_err("bad buffer offset %d > %d\n", cmdhdr->offset, len);
+                return -EINVAL;
+        }
+
+        len -= cmdhdr->offset;
         ret_len = cmdhdr->len;
         if (ret_len > 0 || len > 0) {
                 if (len > BRCMF_DCMD_MAXLEN) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index c3817fae16c0..06f6cc08f451 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -95,7 +95,8 @@ static const struct iwl_eeprom_params iwl1000_eeprom_params = {
         .nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION,  \
         .base_params = &iwl1000_base_params,                    \
         .eeprom_params = &iwl1000_eeprom_params,                \
-        .led_mode = IWL_LED_BLINK
+        .led_mode = IWL_LED_BLINK,                              \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl1000_bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
@@ -121,7 +122,8 @@ const struct iwl_cfg iwl1000_bg_cfg = {
         .base_params = &iwl1000_base_params,                    \
         .eeprom_params = &iwl1000_eeprom_params,                \
         .led_mode = IWL_LED_RF_STATE,                           \
-        .rx_with_siso_diversity = true
+        .rx_with_siso_diversity = true,                         \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl100_bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index 21e5d0843a62..890b95f497d6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -123,7 +123,9 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = {
         .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,          \
         .base_params = &iwl2000_base_params,                    \
         .eeprom_params = &iwl20x0_eeprom_params,                \
-        .led_mode = IWL_LED_RF_STATE
+        .led_mode = IWL_LED_RF_STATE,                           \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
+
 
 const struct iwl_cfg iwl2000_2bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 2200 BGN",
@@ -149,7 +151,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = {
         .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,  \
         .base_params = &iwl2030_base_params,                    \
         .eeprom_params = &iwl20x0_eeprom_params,                \
-        .led_mode = IWL_LED_RF_STATE
+        .led_mode = IWL_LED_RF_STATE,                           \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl2030_2bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 2230 BGN",
@@ -170,7 +173,8 @@ const struct iwl_cfg iwl2030_2bgn_cfg = {
         .base_params = &iwl2000_base_params,                    \
         .eeprom_params = &iwl20x0_eeprom_params,                \
         .led_mode = IWL_LED_RF_STATE,                           \
-        .rx_with_siso_diversity = true
+        .rx_with_siso_diversity = true,                         \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl105_bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 105 BGN",
@@ -197,7 +201,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = {
         .base_params = &iwl2030_base_params,                    \
         .eeprom_params = &iwl20x0_eeprom_params,                \
         .led_mode = IWL_LED_RF_STATE,                           \
-        .rx_with_siso_diversity = true
+        .rx_with_siso_diversity = true,                         \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl135_bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N 135 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 332bbede39e5..724194e23414 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -93,7 +93,8 @@ static const struct iwl_eeprom_params iwl5000_eeprom_params = {
         .nvm_calib_ver = EEPROM_5000_TX_POWER_VERSION,  \
         .base_params = &iwl5000_base_params,                    \
         .eeprom_params = &iwl5000_eeprom_params,                \
-        .led_mode = IWL_LED_BLINK
+        .led_mode = IWL_LED_BLINK,                              \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5300_agn_cfg = {
         .name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
@@ -158,7 +159,8 @@ const struct iwl_cfg iwl5350_agn_cfg = {
         .base_params = &iwl5000_base_params,                    \
         .eeprom_params = &iwl5000_eeprom_params,                \
         .led_mode = IWL_LED_BLINK,                              \
-        .internal_wimax_coex = true
+        .internal_wimax_coex = true,                            \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5150_agn_cfg = {
         .name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 8f2c3c8c6b84..21b2630763dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -145,7 +145,8 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = {
         .nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION,  \
         .base_params = &iwl6000_g2_base_params,                 \
         .eeprom_params = &iwl6000_eeprom_params,                \
-        .led_mode = IWL_LED_RF_STATE
+        .led_mode = IWL_LED_RF_STATE,                           \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6005_2agn_cfg = {
         .name = "Intel(R) Centrino(R) Advanced-N 6205 AGN",
@@ -199,7 +200,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = {
         .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,  \
         .base_params = &iwl6000_g2_base_params,                 \
         .eeprom_params = &iwl6000_eeprom_params,                \
-        .led_mode = IWL_LED_RF_STATE
+        .led_mode = IWL_LED_RF_STATE,                           \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6030_2agn_cfg = {
         .name = "Intel(R) Centrino(R) Advanced-N 6230 AGN",
@@ -235,7 +237,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = {
         .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,  \
         .base_params = &iwl6000_g2_base_params,                 \
         .eeprom_params = &iwl6000_eeprom_params,                \
-        .led_mode = IWL_LED_RF_STATE
+        .led_mode = IWL_LED_RF_STATE,                           \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6035_2agn_cfg = {
         .name = "Intel(R) Centrino(R) Advanced-N 6235 AGN",
@@ -290,7 +293,8 @@ const struct iwl_cfg iwl130_bg_cfg = {
         .nvm_calib_ver = EEPROM_6000_TX_POWER_VERSION,  \
         .base_params = &iwl6000_base_params,                    \
         .eeprom_params = &iwl6000_eeprom_params,                \
-        .led_mode = IWL_LED_BLINK
+        .led_mode = IWL_LED_BLINK,                              \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6000i_2agn_cfg = {
         .name = "Intel(R) Centrino(R) Advanced-N 6200 AGN",
@@ -322,7 +326,8 @@ const struct iwl_cfg iwl6000i_2bg_cfg = {
         .base_params = &iwl6050_base_params,                    \
         .eeprom_params = &iwl6000_eeprom_params,                \
         .led_mode = IWL_LED_BLINK,                              \
-        .internal_wimax_coex = true
+        .internal_wimax_coex = true,                            \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6050_2agn_cfg = {
         .name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 AGN",
@@ -347,7 +352,8 @@ const struct iwl_cfg iwl6050_2abg_cfg = {
         .base_params = &iwl6050_base_params,                    \
         .eeprom_params = &iwl6000_eeprom_params,                \
         .led_mode = IWL_LED_BLINK,                              \
-        .internal_wimax_coex = true
+        .internal_wimax_coex = true,                            \
+        .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6150_bgn_cfg = {
         .name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN",
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index 1ec4d55155f7..7810c41cf9a7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -793,7 +793,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
         if (!vif->bss_conf.assoc)
                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-        if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
+        if (mvmvif->phy_ctxt &&
+            IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
                                mvmvif->phy_ctxt->id))
                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index d530ef3da107..542ee74f290a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -832,7 +832,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
         if (!vif->bss_conf.assoc)
                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-        if (data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
+        if (mvmvif->phy_ctxt &&
+            data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
         IWL_DEBUG_COEX(data->mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 1ff7ec08532d..09654e73a533 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -405,7 +405,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
                         &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 
-                if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
+                if ((mvm->fw->ucode_capa.capa[0] &
+                     IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
+                    (mvm->fw->ucode_capa.api[0] &
+                     IWL_UCODE_TLV_API_LQ_SS_PARAMS))
                         hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
                                 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
         }
@@ -2215,7 +2218,19 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
 
         mutex_lock(&mvm->mutex);
 
-        iwl_mvm_cancel_scan(mvm);
+        /* Due to a race condition, it's possible that mac80211 asks
+         * us to stop a hw_scan when it's already stopped.  This can
+         * happen, for instance, if we stopped the scan ourselves,
+         * called ieee80211_scan_completed() and the userspace called
+         * cancel scan scan before ieee80211_scan_work() could run.
+         * To handle that, simply return if the scan is not running.
+        */
+        /* FIXME: for now, we ignore this race for UMAC scans, since
+         * they don't set the scan_status.
+         */
+        if ((mvm->scan_status == IWL_MVM_SCAN_OS) ||
+            (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+                iwl_mvm_cancel_scan(mvm);
 
         mutex_unlock(&mvm->mutex);
 }
@@ -2559,12 +2574,29 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
         int ret;
 
         mutex_lock(&mvm->mutex);
+
+        /* Due to a race condition, it's possible that mac80211 asks
+         * us to stop a sched_scan when it's already stopped.  This
+         * can happen, for instance, if we stopped the scan ourselves,
+         * called ieee80211_sched_scan_stopped() and the userspace called
+         * stop sched scan scan before ieee80211_sched_scan_stopped_work()
+         * could run.  To handle this, simply return if the scan is
+         * not running.
+        */
+        /* FIXME: for now, we ignore this race for UMAC scans, since
+         * they don't set the scan_status.
+         */
+        if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
+            !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+                mutex_unlock(&mvm->mutex);
+                return 0;
+        }
+
         ret = iwl_mvm_scan_offload_stop(mvm, false);
         mutex_unlock(&mvm->mutex);
         iwl_mvm_wait_for_async_handlers(mvm);
 
         return ret;
-
 }
 
 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 194bd1f939ca..efa9688a4cf1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -134,9 +134,12 @@ enum rs_column_mode {
 #define MAX_NEXT_COLUMNS 7
 #define MAX_COLUMN_CHECKS 3
 
+struct rs_tx_column;
+
 typedef bool (*allow_column_func_t) (struct iwl_mvm *mvm,
                                      struct ieee80211_sta *sta,
-                                     struct iwl_scale_tbl_info *tbl);
+                                     struct iwl_scale_tbl_info *tbl,
+                                     const struct rs_tx_column *next_col);
 
 struct rs_tx_column {
         enum rs_column_mode mode;
@@ -147,13 +150,15 @@ struct rs_tx_column {
 };
 
 static bool rs_ant_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-                         struct iwl_scale_tbl_info *tbl)
+                         struct iwl_scale_tbl_info *tbl,
+                         const struct rs_tx_column *next_col)
 {
-        return iwl_mvm_bt_coex_is_ant_avail(mvm, tbl->rate.ant);
+        return iwl_mvm_bt_coex_is_ant_avail(mvm, next_col->ant);
 }
 
 static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-                          struct iwl_scale_tbl_info *tbl)
+                          struct iwl_scale_tbl_info *tbl,
+                          const struct rs_tx_column *next_col)
 {
         if (!sta->ht_cap.ht_supported)
                 return false;
@@ -171,7 +176,8 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-                          struct iwl_scale_tbl_info *tbl)
+                          struct iwl_scale_tbl_info *tbl,
+                          const struct rs_tx_column *next_col)
 {
         if (!sta->ht_cap.ht_supported)
                 return false;
@@ -180,7 +186,8 @@ static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-                         struct iwl_scale_tbl_info *tbl)
+                         struct iwl_scale_tbl_info *tbl,
+                         const struct rs_tx_column *next_col)
 {
         struct rs_rate *rate = &tbl->rate;
         struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
@@ -1590,7 +1597,7 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
 
                 for (j = 0; j < MAX_COLUMN_CHECKS; j++) {
                         allow_func = next_col->checks[j];
-                        if (allow_func && !allow_func(mvm, sta, tbl))
+                        if (allow_func && !allow_func(mvm, sta, tbl, next_col))
                                 break;
                 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 7e9aa3cb3254..c47c8051da77 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1128,8 +1128,10 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
         if (mvm->scan_status == IWL_MVM_SCAN_NONE)
                 return 0;
 
-        if (iwl_mvm_is_radio_killed(mvm))
+        if (iwl_mvm_is_radio_killed(mvm)) {
+                ret = 0;
                 goto out;
+        }
 
         if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
             (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) ||
@@ -1148,16 +1150,14 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
                 IWL_DEBUG_SCAN(mvm, "Send stop %sscan failed %d\n",
                                sched ? "offloaded " : "", ret);
                 iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
-                return ret;
+                goto out;
         }
 
         IWL_DEBUG_SCAN(mvm, "Successfully sent stop %sscan\n",
                        sched ? "offloaded " : "");
 
         ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ);
-        if (ret)
-                return ret;
-
+out:
         /*
          * Clear the scan status so the next scan requests will succeed. This
          * also ensures the Rx handler doesn't do anything, as the scan was
@@ -1167,7 +1167,6 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
         if (mvm->scan_status == IWL_MVM_SCAN_OS)
                 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 
-out:
         mvm->scan_status = IWL_MVM_SCAN_NONE;
 
         if (notify) {
@@ -1177,7 +1176,7 @@ out:
                         ieee80211_scan_completed(mvm->hw, true);
         }
 
-        return 0;
+        return ret;
 }
 
 static void iwl_mvm_unified_scan_fill_tx_cmd(struct iwl_mvm *mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index 54fafbf9a711..f8d6f306dd76 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -750,8 +750,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
          * request
          */
         list_for_each_entry(te_data, &mvm->time_event_list, list) {
-                if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE &&
-                    te_data->running) {
+                if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) {
                         mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
                         is_p2p = true;
                         goto remove_te;
@@ -766,10 +765,8 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
          * request
          */
         list_for_each_entry(te_data, &mvm->aux_roc_te_list, list) {
-                if (te_data->running) {
-                        mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
-                        goto remove_te;
-                }
+                mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+                goto remove_te;
         }
 
 remove_te:
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 1d4677460711..074f716020aa 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1386,8 +1386,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
                 }
 
                 return true;
-        } else if (0x86DD == ether_type) {
-                return true;
+        } else if (ETH_P_IPV6 == ether_type) {
+                /* TODO: Handle any IPv6 cases that need special handling.
+                 * For now, always return false
+                 */
+                goto end;
         }
 
 end:
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index cab9f5257f57..997cf0901ac2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -96,6 +96,7 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 static void make_tx_response(struct xenvif_queue *queue,
                              struct xen_netif_tx_request *txp,
                              s8       st);
+static void push_tx_responses(struct xenvif_queue *queue);
 
 static inline int tx_work_todo(struct xenvif_queue *queue);
 
@@ -655,15 +656,10 @@ static void xenvif_tx_err(struct xenvif_queue *queue,
         unsigned long flags;
 
         do {
-                int notify;
-
                 spin_lock_irqsave(&queue->response_lock, flags);
                 make_tx_response(queue, txp, XEN_NETIF_RSP_ERROR);
-                RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+                push_tx_responses(queue);
                 spin_unlock_irqrestore(&queue->response_lock, flags);
-                if (notify)
-                        notify_remote_via_irq(queue->tx_irq);
-
                 if (cons == end)
                         break;
                 txp = RING_GET_REQUEST(&queue->tx, cons++);
@@ -1657,7 +1653,6 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 {
         struct pending_tx_info *pending_tx_info;
         pending_ring_idx_t index;
-        int notify;
         unsigned long flags;
 
         pending_tx_info = &queue->pending_tx_info[pending_idx];
@@ -1673,12 +1668,9 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
         index = pending_index(queue->pending_prod++);
         queue->pending_ring[index] = pending_idx;
 
-        RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+        push_tx_responses(queue);
 
         spin_unlock_irqrestore(&queue->response_lock, flags);
-
-        if (notify)
-                notify_remote_via_irq(queue->tx_irq);
 }
 
 
@@ -1699,6 +1691,15 @@ static void make_tx_response(struct xenvif_queue *queue,
         queue->tx.rsp_prod_pvt = ++i;
 }
 
+static void push_tx_responses(struct xenvif_queue *queue)
+{
+        int notify;
+
+        RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+        if (notify)
+                notify_remote_via_irq(queue->tx_irq);
+}
+
 static struct xen_netif_rx_response *make_rx_response(struct xenvif_queue *queue,
                                              u16      id,
                                              s8       st,
diff --git a/drivers/of/base.c b/drivers/of/base.c
index adb8764861c0..8f165b112e03 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -715,13 +715,8 @@ static struct device_node *__of_find_node_by_path(struct device_node *parent,
 {
         struct device_node *child;
         int len;
-        const char *end;
 
-        end = strchr(path, ':');
-        if (!end)
-                end = strchrnul(path, '/');
-
-        len = end - path;
+        len = strcspn(path, "/:");
         if (!len)
                 return NULL;
 
@@ -1893,10 +1888,8 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
                         name = of_get_property(of_chosen, "linux,stdout-path", NULL);
                 if (IS_ENABLED(CONFIG_PPC) && !name)
                         name = of_get_property(of_aliases, "stdout", NULL);
-                if (name) {
+                if (name)
                         of_stdout = of_find_node_opts_by_path(name, &of_stdout_options);
-                        add_preferred_console("stdout-path", 0, NULL);
-                }
         }
 
         if (!of_aliases)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 0d7765807f49..1a7980692f25 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -290,7 +290,7 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
         struct device_node *p;
         const __be32 *intspec, *tmp, *addr;
         u32 intsize, intlen;
-        int i, res = -EINVAL;
+        int i, res;
 
         pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
@@ -323,15 +323,19 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 
         /* Get size of interrupt specifier */
         tmp = of_get_property(p, "#interrupt-cells", NULL);
-        if (tmp == NULL)
+        if (tmp == NULL) {
+                res = -EINVAL;
                 goto out;
+        }
         intsize = be32_to_cpu(*tmp);
 
         pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
 
         /* Check index */
-        if ((index + 1) * intsize > intlen)
+        if ((index + 1) * intsize > intlen) {
+                res = -EINVAL;
                 goto out;
+        }
 
         /* Copy intspec into irq structure */
         intspec += index * intsize;
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index aba8946cac46..52c45c7df07f 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -97,6 +97,11 @@ static void __init of_selftest_find_node_by_name(void)
                  "option path test, subcase #1 failed\n");
         of_node_put(np);
 
+        np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options);
+        selftest(np && !strcmp("test/option", options),
+                 "option path test, subcase #2 failed\n");
+        of_node_put(np);
+
         np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
         selftest(np, "NULL option path test failed\n");
         of_node_put(np);
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index 5afe03e28b91..2062c224e32f 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -66,6 +66,10 @@
 #define BYT_DIR_MASK            (BIT(1) | BIT(2))
 #define BYT_TRIG_MASK           (BIT(26) | BIT(25) | BIT(24))
 
+#define BYT_CONF0_RESTORE_MASK  (BYT_DIRECT_IRQ_EN | BYT_TRIG_MASK | \
+                                 BYT_PIN_MUX)
+#define BYT_VAL_RESTORE_MASK    (BYT_DIR_MASK | BYT_LEVEL)
+
 #define BYT_NGPIO_SCORE         102
 #define BYT_NGPIO_NCORE         28
 #define BYT_NGPIO_SUS           44
@@ -134,12 +138,18 @@ static struct pinctrl_gpio_range byt_ranges[] = {
         },
 };
 
+struct byt_gpio_pin_context {
+        u32 conf0;
+        u32 val;
+};
+
 struct byt_gpio {
         struct gpio_chip                chip;
         struct platform_device          *pdev;
         spinlock_t                      lock;
         void __iomem                    *reg_base;
         struct pinctrl_gpio_range       *range;
+        struct byt_gpio_pin_context     *saved_context;
 };
 
 #define to_byt_gpio(c)  container_of(c, struct byt_gpio, chip)
@@ -158,40 +168,62 @@ static void __iomem *byt_gpio_reg(struct gpio_chip *chip, unsigned offset,
         return vg->reg_base + reg_offset + reg;
 }
 
-static bool is_special_pin(struct byt_gpio *vg, unsigned offset)
+static void byt_gpio_clear_triggering(struct byt_gpio *vg, unsigned offset)
+{
+        void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
+        unsigned long flags;
+        u32 value;
+
+        spin_lock_irqsave(&vg->lock, flags);
+        value = readl(reg);
+        value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL);
+        writel(value, reg);
+        spin_unlock_irqrestore(&vg->lock, flags);
+}
+
+static u32 byt_get_gpio_mux(struct byt_gpio *vg, unsigned offset)
 {
         /* SCORE pin 92-93 */
         if (!strcmp(vg->range->name, BYT_SCORE_ACPI_UID) &&
                 offset >= 92 && offset <= 93)
-                return true;
+                return 1;
 
         /* SUS pin 11-21 */
         if (!strcmp(vg->range->name, BYT_SUS_ACPI_UID) &&
                 offset >= 11 && offset <= 21)
-                return true;
+                return 1;
 
-        return false;
+        return 0;
 }
 
 static int byt_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
         struct byt_gpio *vg = to_byt_gpio(chip);
         void __iomem *reg = byt_gpio_reg(chip, offset, BYT_CONF0_REG);
-        u32 value;
-        bool special;
+        u32 value, gpio_mux;
 
         /*
          * In most cases, func pin mux 000 means GPIO function.
          * But, some pins may have func pin mux 001 represents
-         * GPIO function. Only allow user to export pin with
-         * func pin mux preset as GPIO function by BIOS/FW.
+         * GPIO function.
+         *
+         * Because there are devices out there where some pins were not
+         * configured correctly we allow changing the mux value from
+         * request (but print out warning about that).
          */
         value = readl(reg) & BYT_PIN_MUX;
-        special = is_special_pin(vg, offset);
-        if ((special && value != 1) || (!special && value)) {
-                dev_err(&vg->pdev->dev,
-                        "pin %u cannot be used as GPIO.\n", offset);
-                return -EINVAL;
+        gpio_mux = byt_get_gpio_mux(vg, offset);
+        if (WARN_ON(gpio_mux != value)) {
+                unsigned long flags;
+
+                spin_lock_irqsave(&vg->lock, flags);
+                value = readl(reg) & ~BYT_PIN_MUX;
+                value |= gpio_mux;
+                writel(value, reg);
+                spin_unlock_irqrestore(&vg->lock, flags);
+
+                dev_warn(&vg->pdev->dev,
+                         "pin %u forcibly re-configured as GPIO\n", offset);
         }
 
         pm_runtime_get(&vg->pdev->dev);
@@ -202,14 +234,8 @@ static int byt_gpio_request(struct gpio_chip *chip, unsigned offset)
 static void byt_gpio_free(struct gpio_chip *chip, unsigned offset)
 {
         struct byt_gpio *vg = to_byt_gpio(chip);
-        void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
-        u32 value;
-
-        /* clear interrupt triggering */
-        value = readl(reg);
-        value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL);
-        writel(value, reg);
 
+        byt_gpio_clear_triggering(vg, offset);
         pm_runtime_put(&vg->pdev->dev);
 }
 
@@ -236,23 +262,13 @@ static int byt_irq_type(struct irq_data *d, unsigned type)
         value &= ~(BYT_DIRECT_IRQ_EN | BYT_TRIG_POS | BYT_TRIG_NEG |
                    BYT_TRIG_LVL);
 
-        switch (type) {
-        case IRQ_TYPE_LEVEL_HIGH:
-                value |= BYT_TRIG_LVL;
-        case IRQ_TYPE_EDGE_RISING:
-                value |= BYT_TRIG_POS;
-                break;
-        case IRQ_TYPE_LEVEL_LOW:
-                value |= BYT_TRIG_LVL;
-        case IRQ_TYPE_EDGE_FALLING:
-                value |= BYT_TRIG_NEG;
-                break;
-        case IRQ_TYPE_EDGE_BOTH:
-                value |= (BYT_TRIG_NEG | BYT_TRIG_POS);
-                break;
-        }
         writel(value, reg);
 
+        if (type & IRQ_TYPE_EDGE_BOTH)
+                __irq_set_handler_locked(d->irq, handle_edge_irq);
+        else if (type & IRQ_TYPE_LEVEL_MASK)
+                __irq_set_handler_locked(d->irq, handle_level_irq);
+
         spin_unlock_irqrestore(&vg->lock, flags);
 
         return 0;
@@ -410,58 +426,80 @@ static void byt_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
         struct irq_data *data = irq_desc_get_irq_data(desc);
         struct byt_gpio *vg = to_byt_gpio(irq_desc_get_handler_data(desc));
         struct irq_chip *chip = irq_data_get_irq_chip(data);
-        u32 base, pin, mask;
+        u32 base, pin;
         void __iomem *reg;
-        u32 pending;
+        unsigned long pending;
         unsigned virq;
-        int looplimit = 0;
 
         /* check from GPIO controller which pin triggered the interrupt */
         for (base = 0; base < vg->chip.ngpio; base += 32) {
-
                 reg = byt_gpio_reg(&vg->chip, base, BYT_INT_STAT_REG);
-
-                while ((pending = readl(reg))) {
-                        pin = __ffs(pending);
-                        mask = BIT(pin);
-                        /* Clear before handling so we can't lose an edge */
-                        writel(mask, reg);
-
+                pending = readl(reg);
+                for_each_set_bit(pin, &pending, 32) {
                         virq = irq_find_mapping(vg->chip.irqdomain, base + pin);
                         generic_handle_irq(virq);
-
-                        /* In case bios or user sets triggering incorretly a pin
-                         * might remain in "interrupt triggered" state.
-                         */
-                        if (looplimit++ > 32) {
-                                dev_err(&vg->pdev->dev,
-                                        "Gpio %d interrupt flood, disabling\n",
-                                        base + pin);
-
-                                reg = byt_gpio_reg(&vg->chip, base + pin,
-                                                   BYT_CONF0_REG);
-                                mask = readl(reg);
-                                mask &= ~(BYT_TRIG_NEG | BYT_TRIG_POS |
-                                          BYT_TRIG_LVL);
-                                writel(mask, reg);
-                                mask = readl(reg); /* flush */
-                                break;
-                        }
                 }
         }
         chip->irq_eoi(data);
 }
 
+static void byt_irq_ack(struct irq_data *d)
+{
+        struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+        struct byt_gpio *vg = to_byt_gpio(gc);
+        unsigned offset = irqd_to_hwirq(d);
+        void __iomem *reg;
+
+        reg = byt_gpio_reg(&vg->chip, offset, BYT_INT_STAT_REG);
+        writel(BIT(offset % 32), reg);
+}
+
 static void byt_irq_unmask(struct irq_data *d)
 {
+        struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+        struct byt_gpio *vg = to_byt_gpio(gc);
+        unsigned offset = irqd_to_hwirq(d);
+        unsigned long flags;
+        void __iomem *reg;
+        u32 value;
+
+        spin_lock_irqsave(&vg->lock, flags);
+
+        reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
+        value = readl(reg);
+
+        switch (irqd_get_trigger_type(d)) {
+        case IRQ_TYPE_LEVEL_HIGH:
+                value |= BYT_TRIG_LVL;
+        case IRQ_TYPE_EDGE_RISING:
+                value |= BYT_TRIG_POS;
+                break;
+        case IRQ_TYPE_LEVEL_LOW:
+                value |= BYT_TRIG_LVL;
+        case IRQ_TYPE_EDGE_FALLING:
+                value |= BYT_TRIG_NEG;
+                break;
+        case IRQ_TYPE_EDGE_BOTH:
+                value |= (BYT_TRIG_NEG | BYT_TRIG_POS);
+                break;
+        }
+
+        writel(value, reg);
+
+        spin_unlock_irqrestore(&vg->lock, flags);
 }
 
 static void byt_irq_mask(struct irq_data *d)
 {
+        struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+        struct byt_gpio *vg = to_byt_gpio(gc);
+
+        byt_gpio_clear_triggering(vg, irqd_to_hwirq(d));
 }
 
 static struct irq_chip byt_irqchip = {
         .name = "BYT-GPIO",
+        .irq_ack = byt_irq_ack,
         .irq_mask = byt_irq_mask,
         .irq_unmask = byt_irq_unmask,
         .irq_set_type = byt_irq_type,
@@ -472,6 +510,21 @@ static void byt_gpio_irq_init_hw(struct byt_gpio *vg)
 {
         void __iomem *reg;
         u32 base, value;
+        int i;
+
+        /*
+         * Clear interrupt triggers for all pins that are GPIOs and
+         * do not use direct IRQ mode. This will prevent spurious
+         * interrupts from misconfigured pins.
+         */
+        for (i = 0; i < vg->chip.ngpio; i++) {
+                value = readl(byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG));
+                if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i) &&
+                    !(value & BYT_DIRECT_IRQ_EN)) {
+                        byt_gpio_clear_triggering(vg, i);
+                        dev_dbg(&vg->pdev->dev, "disabling GPIO %d\n", i);
+                }
+        }
 
         /* clear interrupt status trigger registers */
         for (base = 0; base < vg->chip.ngpio; base += 32) {
@@ -541,6 +594,11 @@ static int byt_gpio_probe(struct platform_device *pdev)
         gc->can_sleep = false;
         gc->dev = dev;
 
+#ifdef CONFIG_PM_SLEEP
+        vg->saved_context = devm_kcalloc(&pdev->dev, gc->ngpio,
+                                       sizeof(*vg->saved_context), GFP_KERNEL);
+#endif
+
         ret = gpiochip_add(gc);
         if (ret) {
                 dev_err(&pdev->dev, "failed adding byt-gpio chip\n");
@@ -569,6 +627,69 @@ static int byt_gpio_probe(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int byt_gpio_suspend(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct byt_gpio *vg = platform_get_drvdata(pdev);
+        int i;
+
+        for (i = 0; i < vg->chip.ngpio; i++) {
+                void __iomem *reg;
+                u32 value;
+
+                reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG);
+                value = readl(reg) & BYT_CONF0_RESTORE_MASK;
+                vg->saved_context[i].conf0 = value;
+
+                reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG);
+                value = readl(reg) & BYT_VAL_RESTORE_MASK;
+                vg->saved_context[i].val = value;
+        }
+
+        return 0;
+}
+
+static int byt_gpio_resume(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct byt_gpio *vg = platform_get_drvdata(pdev);
+        int i;
+
+        for (i = 0; i < vg->chip.ngpio; i++) {
+                void __iomem *reg;
+                u32 value;
+
+                reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG);
+                value = readl(reg);
+                if ((value & BYT_CONF0_RESTORE_MASK) !=
+                     vg->saved_context[i].conf0) {
+                        value &= ~BYT_CONF0_RESTORE_MASK;
+                        value |= vg->saved_context[i].conf0;
+                        writel(value, reg);
+                        dev_info(dev, "restored pin %d conf0 %#08x", i, value);
+                }
+
+                reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG);
+                value = readl(reg);
+                if ((value & BYT_VAL_RESTORE_MASK) !=
+                     vg->saved_context[i].val) {
+                        u32 v;
+
+                        v = value & ~BYT_VAL_RESTORE_MASK;
+                        v |= vg->saved_context[i].val;
+                        if (v != value) {
+                                writel(v, reg);
+                                dev_dbg(dev, "restored pin %d val %#08x\n",
+                                        i, v);
+                        }
+                }
+        }
+
+        return 0;
+}
+#endif
+
 static int byt_gpio_runtime_suspend(struct device *dev)
 {
         return 0;
@@ -580,8 +701,9 @@ static int byt_gpio_runtime_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops byt_gpio_pm_ops = {
-        .runtime_suspend = byt_gpio_runtime_suspend,
-        .runtime_resume = byt_gpio_runtime_resume,
+        SET_LATE_SYSTEM_SLEEP_PM_OPS(byt_gpio_suspend, byt_gpio_resume)
+        SET_RUNTIME_PM_OPS(byt_gpio_runtime_suspend, byt_gpio_runtime_resume,
+                           NULL)
 };
 
 static const struct acpi_device_id byt_gpio_acpi_match[] = {
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 3034fd03bced..82f691eeeec4 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1226,6 +1226,7 @@ static int chv_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 static int chv_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
                                      int value)
 {
+        chv_gpio_set(chip, offset, value);
         return pinctrl_gpio_direction_output(chip->base + offset);
 }
 
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index f4cd0b9b2438..a4814066ea08 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1477,28 +1477,25 @@ static void gpio_irq_ack(struct irq_data *d)
         /* the interrupt is already cleared before by reading ISR */
 }
 
-static unsigned int gpio_irq_startup(struct irq_data *d)
+static int gpio_irq_request_res(struct irq_data *d)
 {
         struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
         unsigned        pin = d->hwirq;
         int ret;
 
         ret = gpiochip_lock_as_irq(&at91_gpio->chip, pin);
-        if (ret) {
+        if (ret)
                 dev_err(at91_gpio->chip.dev, "unable to lock pind %lu IRQ\n",
                         d->hwirq);
-                return ret;
-        }
-        gpio_irq_unmask(d);
-        return 0;
+
+        return ret;
 }
 
-static void gpio_irq_shutdown(struct irq_data *d)
+static void gpio_irq_release_res(struct irq_data *d)
 {
         struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
         unsigned        pin = d->hwirq;
 
-        gpio_irq_mask(d);
         gpiochip_unlock_as_irq(&at91_gpio->chip, pin);
 }
 
@@ -1577,8 +1574,8 @@ void at91_pinctrl_gpio_resume(void)
 static struct irq_chip gpio_irqchip = {
         .name           = "GPIO",
         .irq_ack        = gpio_irq_ack,
-        .irq_startup    = gpio_irq_startup,
-        .irq_shutdown   = gpio_irq_shutdown,
+        .irq_request_resources = gpio_irq_request_res,
+        .irq_release_resources = gpio_irq_release_res,
         .irq_disable    = gpio_irq_mask,
         .irq_mask       = gpio_irq_mask,
         .irq_unmask     = gpio_irq_unmask,
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
index 24c5d88f943f..3c68a8e5e0dd 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
@@ -1011,6 +1011,7 @@ static const struct sunxi_pinctrl_desc sun4i_a10_pinctrl_data = {
         .pins = sun4i_a10_pins,
         .npins = ARRAY_SIZE(sun4i_a10_pins),
         .irq_banks = 1,
+        .irq_read_needs_mux = true,
 };
 
 static int sun4i_a10_pinctrl_probe(struct platform_device *pdev)
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 3d0744337736..f8e171b76693 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 
 #include "../core.h"
+#include "../../gpio/gpiolib.h"
 #include "pinctrl-sunxi.h"
 
 static struct irq_chip sunxi_pinctrl_edge_irq_chip;
@@ -464,10 +465,19 @@ static int sunxi_pinctrl_gpio_direction_input(struct gpio_chip *chip,
 static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
         struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
-
         u32 reg = sunxi_data_reg(offset);
         u8 index = sunxi_data_offset(offset);
-        u32 val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK;
+        u32 set_mux = pctl->desc->irq_read_needs_mux &&
+                        test_bit(FLAG_USED_AS_IRQ, &chip->desc[offset].flags);
+        u32 val;
+
+        if (set_mux)
+                sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_INPUT);
+
+        val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK;
+
+        if (set_mux)
+                sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_IRQ);
 
         return val;
 }
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h b/drivers/pinctrl/sunxi/pinctrl-sunxi.h
index 5a51523a3459..e248e81a0f9e 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.h
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h
@@ -77,6 +77,9 @@
 #define IRQ_LEVEL_LOW           0x03
 #define IRQ_EDGE_BOTH           0x04
 
+#define SUN4I_FUNC_INPUT        0
+#define SUN4I_FUNC_IRQ          6
+
 struct sunxi_desc_function {
         const char      *name;
         u8              muxval;
@@ -94,6 +97,7 @@ struct sunxi_pinctrl_desc {
         int                             npins;
         unsigned                        pin_base;
         unsigned                        irq_banks;
+        bool                            irq_read_needs_mux;
 };
 
 struct sunxi_pinctrl_function {
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 1245dca79009..a4a8a6dc60c4 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1839,10 +1839,12 @@ static int _regulator_do_enable(struct regulator_dev *rdev)
         }
 
         if (rdev->ena_pin) {
-                ret = regulator_ena_gpio_ctrl(rdev, true);
-                if (ret < 0)
-                        return ret;
-                rdev->ena_gpio_state = 1;
+                if (!rdev->ena_gpio_state) {
+                        ret = regulator_ena_gpio_ctrl(rdev, true);
+                        if (ret < 0)
+                                return ret;
+                        rdev->ena_gpio_state = 1;
+                }
         } else if (rdev->desc->ops->enable) {
                 ret = rdev->desc->ops->enable(rdev);
                 if (ret < 0)
@@ -1939,10 +1941,12 @@ static int _regulator_do_disable(struct regulator_dev *rdev)
         trace_regulator_disable(rdev_get_name(rdev));
 
         if (rdev->ena_pin) {
-                ret = regulator_ena_gpio_ctrl(rdev, false);
-                if (ret < 0)
-                        return ret;
-                rdev->ena_gpio_state = 0;
+                if (rdev->ena_gpio_state) {
+                        ret = regulator_ena_gpio_ctrl(rdev, false);
+                        if (ret < 0)
+                                return ret;
+                        rdev->ena_gpio_state = 0;
+                }
 
         } else if (rdev->desc->ops->disable) {
                 ret = rdev->desc->ops->disable(rdev);
@@ -3626,12 +3630,6 @@ regulator_register(const struct regulator_desc *regulator_desc,
                                  config->ena_gpio, ret);
                         goto wash;
                 }
-
-                if (config->ena_gpio_flags & GPIOF_OUT_INIT_HIGH)
-                        rdev->ena_gpio_state = 1;
-
-                if (config->ena_gpio_invert)
-                        rdev->ena_gpio_state = !rdev->ena_gpio_state;
         }
 
         /* set regulator constraints */
@@ -3800,9 +3798,11 @@ int regulator_suspend_finish(void)
         list_for_each_entry(rdev, &regulator_list, list) {
                 mutex_lock(&rdev->mutex);
                 if (rdev->use_count > 0  || rdev->constraints->always_on) {
-                        error = _regulator_do_enable(rdev);
-                        if (error)
-                                ret = error;
+                        if (!_regulator_is_enabled(rdev)) {
+                                error = _regulator_do_enable(rdev);
+                                if (error)
+                                        ret = error;
+                        }
                 } else {
                         if (!have_full_constraints())
                                 goto unlock;
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index e2cffe01b807..fb991ec76423 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/err.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 92f6af6da699..73354ee27877 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -951,6 +951,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
         void *bufs_va;
         int err = 0, i;
         size_t total_buf_space;
+        bool notify;
 
         vrp = kzalloc(sizeof(*vrp), GFP_KERNEL);
         if (!vrp)
@@ -1030,8 +1031,22 @@ static int rpmsg_probe(struct virtio_device *vdev)
                 }
         }
 
+        /*
+         * Prepare to kick but don't notify yet - we can't do this before
+         * device is ready.
+         */
+        notify = virtqueue_kick_prepare(vrp->rvq);
+
+        /* From this point on, we can notify and get callbacks. */
+        virtio_device_ready(vdev);
+
         /* tell the remote processor it can start sending messages */
-        virtqueue_kick(vrp->rvq);
+        /*
+         * this might be concurrent with callbacks, but we are only
+         * doing notify, not a full kick here, so that's ok.
+         */
+        if (notify)
+                virtqueue_notify(vrp->rvq);
 
         dev_info(&vdev->dev, "rpmsg host is online\n");
 
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 99f43b7fc9ab..ab4879e12ea7 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1596,7 +1596,7 @@ static int tcm_qla2xxx_check_initiator_node_acl(
         /*
          * Finally register the new FC Nexus with TCM
          */
-        __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
+        transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
 
         return 0;
 }
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 50bad55a0c42..2accb6e47beb 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4256,11 +4256,17 @@ int iscsit_close_connection(
         pr_debug("Closing iSCSI connection CID %hu on SID:"
                 " %u\n", conn->cid, sess->sid);
         /*
-         * Always up conn_logout_comp just in case the RX Thread is sleeping
-         * and the logout response never got sent because the connection
-         * failed.
+         * Always up conn_logout_comp for the traditional TCP case just in case
+         * the RX Thread in iscsi_target_rx_opcode() is sleeping and the logout
+         * response never got sent because the connection failed.
+         *
+         * However for iser-target, isert_wait4logout() is using conn_logout_comp
+         * to signal logout response TX interrupt completion.  Go ahead and skip
+         * this for iser since isert_rx_opcode() does not wait on logout failure,
+         * and to avoid iscsi_conn pointer dereference in iser-target code.
          */
-        complete(&conn->conn_logout_comp);
+        if (conn->conn_transport->transport_type == ISCSI_TCP)
+                complete(&conn->conn_logout_comp);
 
         iscsi_release_thread_set(conn);
 
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 1c197bad6132..bdd8731a4daa 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -22,7 +22,6 @@
 #include <target/target_core_fabric.h>
 
 #include <target/iscsi/iscsi_target_core.h>
-#include <target/iscsi/iscsi_transport.h>
 #include "iscsi_target_seq_pdu_list.h"
 #include "iscsi_target_tq.h"
 #include "iscsi_target_erl0.h"
@@ -940,8 +939,7 @@ void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
 
         if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) {
                 spin_unlock_bh(&conn->state_lock);
-                if (conn->conn_transport->transport_type == ISCSI_TCP)
-                        iscsit_close_connection(conn);
+                iscsit_close_connection(conn);
                 return;
         }
 
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 6b3c32954689..c36bd7c29136 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -953,11 +953,8 @@ static int tcm_loop_make_nexus(
                 transport_free_session(tl_nexus->se_sess);
                 goto out;
         }
-        /*
-         * Now, register the SAS I_T Nexus as active with the call to
-         * transport_register_session()
-         */
-        __transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
+        /* Now, register the SAS I_T Nexus as active. */
+        transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
                         tl_nexus->se_sess, tl_nexus);
         tl_tpg->tl_nexus = tl_nexus;
         pr_debug("TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 58f49ff69b14..79b4ec3ca2db 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -650,6 +650,18 @@ static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size)
         return aligned_max_sectors;
 }
 
+bool se_dev_check_wce(struct se_device *dev)
+{
+        bool wce = false;
+
+        if (dev->transport->get_write_cache)
+                wce = dev->transport->get_write_cache(dev);
+        else if (dev->dev_attrib.emulate_write_cache > 0)
+                wce = true;
+
+        return wce;
+}
+
 int se_dev_set_max_unmap_lba_count(
         struct se_device *dev,
         u32 max_unmap_lba_count)
@@ -767,6 +779,16 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
                 pr_err("Illegal value %d\n", flag);
                 return -EINVAL;
         }
+        if (flag &&
+            dev->transport->get_write_cache) {
+                pr_err("emulate_fua_write not supported for this device\n");
+                return -EINVAL;
+        }
+        if (dev->export_count) {
+                pr_err("emulate_fua_write cannot be changed with active"
+                       " exports: %d\n", dev->export_count);
+                return -EINVAL;
+        }
         dev->dev_attrib.emulate_fua_write = flag;
         pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n",
                         dev, dev->dev_attrib.emulate_fua_write);
@@ -801,7 +823,11 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
                 pr_err("emulate_write_cache not supported for this device\n");
                 return -EINVAL;
         }
-
+        if (dev->export_count) {
+                pr_err("emulate_write_cache cannot be changed with active"
+                       " exports: %d\n", dev->export_count);
+                return -EINVAL;
+        }
         dev->dev_attrib.emulate_write_cache = flag;
         pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
                         dev, dev->dev_attrib.emulate_write_cache);
@@ -1534,8 +1560,6 @@ int target_configure_device(struct se_device *dev)
         ret = dev->transport->configure_device(dev);
         if (ret)
                 goto out;
-        dev->dev_flags |= DF_CONFIGURED;
-
         /*
          * XXX: there is not much point to have two different values here..
          */
@@ -1597,6 +1621,8 @@ int target_configure_device(struct se_device *dev)
         list_add_tail(&dev->g_dev_node, &g_device_list);
         mutex_unlock(&g_device_mutex);
 
+        dev->dev_flags |= DF_CONFIGURED;
+
         return 0;
 
 out_free_alua:
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 1045dcd7bf65..f6c954c4635f 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1121,7 +1121,7 @@ static u32 pscsi_get_device_type(struct se_device *dev)
         struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
         struct scsi_device *sd = pdv->pdv_sd;
 
-        return sd->type;
+        return (sd) ? sd->type : TYPE_NO_LUN;
 }
 
 static sector_t pscsi_get_blocks(struct se_device *dev)
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 9a2f9d3a6e70..3e7297411110 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -708,8 +708,7 @@ sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
                 }
         }
         if (cdb[1] & 0x8) {
-                if (!dev->dev_attrib.emulate_fua_write ||
-                    !dev->dev_attrib.emulate_write_cache) {
+                if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) {
                         pr_err("Got CDB: 0x%02x with FUA bit set, but device"
                                " does not advertise support for FUA write\n",
                                cdb[0]);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 460e93109473..6c8bd6bc175c 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -454,19 +454,6 @@ check_scsi_name:
 }
 EXPORT_SYMBOL(spc_emulate_evpd_83);
 
-static bool
-spc_check_dev_wce(struct se_device *dev)
-{
-        bool wce = false;
-
-        if (dev->transport->get_write_cache)
-                wce = dev->transport->get_write_cache(dev);
-        else if (dev->dev_attrib.emulate_write_cache > 0)
-                wce = true;
-
-        return wce;
-}
-
 /* Extended INQUIRY Data VPD Page */
 static sense_reason_t
 spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
@@ -490,7 +477,7 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
         buf[5] = 0x07;
 
         /* If WriteCache emulation is enabled, set V_SUP */
-        if (spc_check_dev_wce(dev))
+        if (se_dev_check_wce(dev))
                 buf[6] = 0x01;
         /* If an LBA map is present set R_SUP */
         spin_lock(&cmd->se_dev->t10_alua.lba_map_lock);
@@ -897,7 +884,7 @@ static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p)
         if (pc == 1)
                 goto out;
 
-        if (spc_check_dev_wce(dev))
+        if (se_dev_check_wce(dev))
                 p[2] = 0x04; /* Write Cache Enable */
         p[12] = 0x20; /* Disabled Read Ahead */
 
@@ -1009,7 +996,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd)
              (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
                 spc_modesense_write_protect(&buf[length], type);
 
-        if ((spc_check_dev_wce(dev)) &&
+        if ((se_dev_check_wce(dev)) &&
             (dev->dev_attrib.emulate_fua_write > 0))
                 spc_modesense_dpofua(&buf[length], type);
 
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 0adc0f650213..ac3cbabdbdf0 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2389,6 +2389,10 @@ int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
         list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list);
 out:
         spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
+        if (ret && ack_kref)
+                target_put_sess_cmd(se_sess, se_cmd);
+
         return ret;
 }
 EXPORT_SYMBOL(target_get_sess_cmd);
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index 97b486c3dda1..583e755d8091 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -359,7 +359,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd)
                 ep = fc_seq_exch(seq);
                 if (ep) {
                         lport = ep->lp;
-                        if (lport && (ep->xid <= lport->lro_xid))
+                        if (lport && (ep->xid <= lport->lro_xid)) {
                                 /*
                                  * "ddp_done" trigger invalidation of HW
                                  * specific DDP context
@@ -374,6 +374,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd)
                                  * identified using ep->xid)
                                  */
                                 cmd->was_ddp_setup = 0;
+                        }
                 }
         }
 }
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 3a494168661e..6e0a019aad54 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -1740,10 +1740,9 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name)
                 goto err_session;
         }
         /*
-         * Now register the TCM vHost virtual I_T Nexus as active with the
-         * call to __transport_register_session()
+         * Now register the TCM vHost virtual I_T Nexus as active.
          */
-        __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+        transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
                         tv_nexus->tvn_se_sess, tv_nexus);
         tpg->tpg_nexus = tv_nexus;
         mutex_unlock(&tpg->tpg_mutex);
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 8d4f3f1ff799..71df240a467a 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1956,10 +1956,9 @@ static int vhost_scsi_make_nexus(struct vhost_scsi_tpg *tpg,
                 goto out;
         }
         /*
-         * Now register the TCM vhost virtual I_T Nexus as active with the
-         * call to __transport_register_session()
+         * Now register the TCM vhost virtual I_T Nexus as active.
          */
-        __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+        transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
                         tv_nexus->tvn_se_sess, tv_nexus);
         tpg->tpg_nexus = tv_nexus;
 
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 0413157f3b49..6a356e344f82 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 #include <linux/balloon_compaction.h>
 #include <linux/oom.h>
+#include <linux/wait.h>
 
 /*
  * Balloon device works in 4K page units.  So each page is pointed to by
@@ -334,17 +335,25 @@ static int virtballoon_oom_notify(struct notifier_block *self,
 static int balloon(void *_vballoon)
 {
         struct virtio_balloon *vb = _vballoon;
+        DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
         set_freezable();
         while (!kthread_should_stop()) {
                 s64 diff;
 
                 try_to_freeze();
-                wait_event_interruptible(vb->config_change,
-                                         (diff = towards_target(vb)) != 0
-                                         || vb->need_stats_update
-                                         || kthread_should_stop()
-                                         || freezing(current));
+
+                add_wait_queue(&vb->config_change, &wait);
+                for (;;) {
+                        if ((diff = towards_target(vb)) != 0 ||
+                            vb->need_stats_update ||
+                            kthread_should_stop() ||
+                            freezing(current))
+                                break;
+                        wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+                }
+                remove_wait_queue(&vb->config_change, &wait);
+
                 if (vb->need_stats_update)
                         stats_handle_request(vb);
                 if (diff > 0)
@@ -499,6 +508,8 @@ static int virtballoon_probe(struct virtio_device *vdev)
         if (err < 0)
                 goto out_oom_notify;
 
+        virtio_device_ready(vdev);
+
         vb->thread = kthread_run(balloon, vb, "vballoon");
         if (IS_ERR(vb->thread)) {
                 err = PTR_ERR(vb->thread);
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index cad569890908..6010d7ec0a0f 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -156,22 +156,95 @@ static void vm_get(struct virtio_device *vdev, unsigned offset,
                    void *buf, unsigned len)
 {
         struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
-        u8 *ptr = buf;
-        int i;
+        void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG;
+        u8 b;
+        __le16 w;
+        __le32 l;
 
-        for (i = 0; i < len; i++)
-                ptr[i] = readb(vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i);
+        if (vm_dev->version == 1) {
+                u8 *ptr = buf;
+                int i;
+
+                for (i = 0; i < len; i++)
+                        ptr[i] = readb(base + offset + i);
+                return;
+        }
+
+        switch (len) {
+        case 1:
+                b = readb(base + offset);
+                memcpy(buf, &b, sizeof b);
+                break;
+        case 2:
+                w = cpu_to_le16(readw(base + offset));
+                memcpy(buf, &w, sizeof w);
+                break;
+        case 4:
+                l = cpu_to_le32(readl(base + offset));
+                memcpy(buf, &l, sizeof l);
+                break;
+        case 8:
+                l = cpu_to_le32(readl(base + offset));
+                memcpy(buf, &l, sizeof l);
+                l = cpu_to_le32(ioread32(base + offset + sizeof l));
+                memcpy(buf + sizeof l, &l, sizeof l);
+                break;
+        default:
+                BUG();
+        }
 }
 
 static void vm_set(struct virtio_device *vdev, unsigned offset,
                    const void *buf, unsigned len)
 {
         struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
-        const u8 *ptr = buf;
-        int i;
+        void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG;
+        u8 b;
+        __le16 w;
+        __le32 l;
 
-        for (i = 0; i < len; i++)
-                writeb(ptr[i], vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i);
+        if (vm_dev->version == 1) {
+                const u8 *ptr = buf;
+                int i;
+
+                for (i = 0; i < len; i++)
+                        writeb(ptr[i], base + offset + i);
+
+                return;
+        }
+
+        switch (len) {
+        case 1:
+                memcpy(&b, buf, sizeof b);
+                writeb(b, base + offset);
+                break;
+        case 2:
+                memcpy(&w, buf, sizeof w);
+                writew(le16_to_cpu(w), base + offset);
+                break;
+        case 4:
+                memcpy(&l, buf, sizeof l);
+                writel(le32_to_cpu(l), base + offset);
+                break;
+        case 8:
+                memcpy(&l, buf, sizeof l);
+                writel(le32_to_cpu(l), base + offset);
+                memcpy(&l, buf + sizeof l, sizeof l);
+                writel(le32_to_cpu(l), base + offset + sizeof l);
+                break;
+        default:
+                BUG();
+        }
+}
+
+static u32 vm_generation(struct virtio_device *vdev)
+{
+        struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
+
+        if (vm_dev->version == 1)
+                return 0;
+        else
+                return readl(vm_dev->base + VIRTIO_MMIO_CONFIG_GENERATION);
 }
 
 static u8 vm_get_status(struct virtio_device *vdev)
@@ -440,6 +513,7 @@ static const char *vm_bus_name(struct virtio_device *vdev)
 static const struct virtio_config_ops virtio_mmio_config_ops = {
         .get            = vm_get,
         .set            = vm_set,
+        .generation     = vm_generation,
         .get_status     = vm_get_status,
         .set_status     = vm_set_status,
         .reset          = vm_reset,
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 9faca6a60bb0..42bd55a6c237 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -1659,11 +1659,8 @@ static int scsiback_make_nexus(struct scsiback_tpg *tpg,
                          name);
                 goto out;
         }
-        /*
-         * Now register the TCM pvscsi virtual I_T Nexus as active with the
-         * call to __transport_register_session()
-         */
-        __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+        /* Now register the TCM pvscsi virtual I_T Nexus as active. */
+        transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
                         tv_nexus->tvn_se_sess, tv_nexus);
         tpg->tpg_nexus = tv_nexus;
 
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 84c3b00f3de8..f9c89cae39ee 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3387,6 +3387,8 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 
 int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
                                     struct btrfs_root *root);
+int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
+                            struct btrfs_root *root);
 int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr);
 int btrfs_free_block_groups(struct btrfs_fs_info *info);
 int btrfs_read_block_groups(struct btrfs_root *root);
@@ -3909,6 +3911,9 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
                                     loff_t actual_len, u64 *alloc_hint);
 int btrfs_inode_check_errors(struct inode *inode);
 extern const struct dentry_operations btrfs_dentry_operations;
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_inode_set_ops(struct inode *inode);
+#endif
 
 /* ioctl.c */
 long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f79f38542a73..639f2663ed3f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3921,7 +3921,7 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
         }
         if (btrfs_super_sys_array_size(sb) < sizeof(struct btrfs_disk_key)
                         + sizeof(struct btrfs_chunk)) {
-                printk(KERN_ERR "BTRFS: system chunk array too small %u < %lu\n",
+                printk(KERN_ERR "BTRFS: system chunk array too small %u < %zu\n",
                                 btrfs_super_sys_array_size(sb),
                                 sizeof(struct btrfs_disk_key)
                                 + sizeof(struct btrfs_chunk));
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6f080451fcb1..8b353ad02f03 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3325,6 +3325,32 @@ out:
         return ret;
 }
 
+int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
+                            struct btrfs_root *root)
+{
+        struct btrfs_block_group_cache *cache, *tmp;
+        struct btrfs_transaction *cur_trans = trans->transaction;
+        struct btrfs_path *path;
+
+        if (list_empty(&cur_trans->dirty_bgs) ||
+            !btrfs_test_opt(root, SPACE_CACHE))
+                return 0;
+
+        path = btrfs_alloc_path();
+        if (!path)
+                return -ENOMEM;
+
+        /* Could add new block groups, use _safe just in case */
+        list_for_each_entry_safe(cache, tmp, &cur_trans->dirty_bgs,
+                                 dirty_list) {
+                if (cache->disk_cache_state == BTRFS_DC_CLEAR)
+                        cache_save_setup(cache, trans, path);
+        }
+
+        btrfs_free_path(path);
+        return 0;
+}
+
 int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
                                    struct btrfs_root *root)
 {
@@ -5110,7 +5136,11 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
         num_bytes = ALIGN(num_bytes, root->sectorsize);
 
         spin_lock(&BTRFS_I(inode)->lock);
-        BTRFS_I(inode)->outstanding_extents++;
+        nr_extents = (unsigned)div64_u64(num_bytes +
+                                         BTRFS_MAX_EXTENT_SIZE - 1,
+                                         BTRFS_MAX_EXTENT_SIZE);
+        BTRFS_I(inode)->outstanding_extents += nr_extents;
+        nr_extents = 0;
 
         if (BTRFS_I(inode)->outstanding_extents >
             BTRFS_I(inode)->reserved_extents)
@@ -5255,6 +5285,9 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes)
         if (dropped > 0)
                 to_free += btrfs_calc_trans_metadata_size(root, dropped);
 
+        if (btrfs_test_is_dummy_root(root))
+                return;
+
         trace_btrfs_space_reservation(root->fs_info, "delalloc",
                                       btrfs_ino(inode), to_free, 0);
         if (root->fs_info->quota_enabled) {
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c7233ff1d533..d688cfe5d496 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4968,6 +4968,12 @@ static int release_extent_buffer(struct extent_buffer *eb)
 
                 /* Should be safe to release our pages at this point */
                 btrfs_release_extent_buffer_page(eb);
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+                if (unlikely(test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags))) {
+                        __free_extent_buffer(eb);
+                        return 1;
+                }
+#endif
                 call_rcu(&eb->rcu_head, btrfs_release_extent_buffer_rcu);
                 return 1;
         }
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index da828cf5e8f8..d2e732d7af52 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -108,6 +108,13 @@ static struct extent_map *create_pinned_em(struct inode *inode, u64 start,
 
 static int btrfs_dirty_inode(struct inode *inode);
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_inode_set_ops(struct inode *inode)
+{
+        BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+}
+#endif
+
 static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
                                      struct inode *inode,  struct inode *dir,
                                      const struct qstr *qstr)
@@ -1542,30 +1549,17 @@ static void btrfs_split_extent_hook(struct inode *inode,
                 u64 new_size;
 
                 /*
-                 * We need the largest size of the remaining extent to see if we
-                 * need to add a new outstanding extent.  Think of the following
-                 * case
-                 *
-                 * [MEAX_EXTENT_SIZEx2 - 4k][4k]
-                 *
-                 * The new_size would just be 4k and we'd think we had enough
-                 * outstanding extents for this if we only took one side of the
-                 * split, same goes for the other direction.  We need to see if
-                 * the larger size still is the same amount of extents as the
-                 * original size, because if it is we need to add a new
-                 * outstanding extent.  But if we split up and the larger size
-                 * is less than the original then we are good to go since we've
-                 * already accounted for the extra extent in our original
-                 * accounting.
+                 * See the explanation in btrfs_merge_extent_hook, the same
+                 * applies here, just in reverse.
                  */
                 new_size = orig->end - split + 1;
-                if ((split - orig->start) > new_size)
-                        new_size = split - orig->start;
-
-                num_extents = div64_u64(size + BTRFS_MAX_EXTENT_SIZE - 1,
+                num_extents = div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
                                         BTRFS_MAX_EXTENT_SIZE);
-                if (div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
-                              BTRFS_MAX_EXTENT_SIZE) < num_extents)
+                new_size = split - orig->start;
+                num_extents += div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
+                                        BTRFS_MAX_EXTENT_SIZE);
+                if (div64_u64(size + BTRFS_MAX_EXTENT_SIZE - 1,
+                              BTRFS_MAX_EXTENT_SIZE) >= num_extents)
                         return;
         }
 
@@ -1591,8 +1585,10 @@ static void btrfs_merge_extent_hook(struct inode *inode,
         if (!(other->state & EXTENT_DELALLOC))
                 return;
 
-        old_size = other->end - other->start + 1;
-        new_size = old_size + (new->end - new->start + 1);
+        if (new->start > other->start)
+                new_size = new->end - other->start + 1;
+        else
+                new_size = other->end - new->start + 1;
 
         /* we're not bigger than the max, unreserve the space and go */
         if (new_size <= BTRFS_MAX_EXTENT_SIZE) {
@@ -1603,13 +1599,32 @@ static void btrfs_merge_extent_hook(struct inode *inode,
         }
 
         /*
-         * If we grew by another max_extent, just return, we want to keep that
-         * reserved amount.
+         * We have to add up either side to figure out how many extents were
+         * accounted for before we merged into one big extent.  If the number of
+         * extents we accounted for is <= the amount we need for the new range
+         * then we can return, otherwise drop.  Think of it like this
+         *
+         * [ 4k][MAX_SIZE]
+         *
+         * So we've grown the extent by a MAX_SIZE extent, this would mean we
+         * need 2 outstanding extents, on one side we have 1 and the other side
+         * we have 1 so they are == and we can return.  But in this case
+         *
+         * [MAX_SIZE+4k][MAX_SIZE+4k]
+         *
+         * Each range on their own accounts for 2 extents, but merged together
+         * they are only 3 extents worth of accounting, so we need to drop in
+         * this case.
          */
+        old_size = other->end - other->start + 1;
         num_extents = div64_u64(old_size + BTRFS_MAX_EXTENT_SIZE - 1,
                                 BTRFS_MAX_EXTENT_SIZE);
+        old_size = new->end - new->start + 1;
+        num_extents += div64_u64(old_size + BTRFS_MAX_EXTENT_SIZE - 1,
+                                 BTRFS_MAX_EXTENT_SIZE);
+
         if (div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
-                      BTRFS_MAX_EXTENT_SIZE) > num_extents)
+                      BTRFS_MAX_EXTENT_SIZE) >= num_extents)
                 return;
 
         spin_lock(&BTRFS_I(inode)->lock);
@@ -1686,6 +1701,10 @@ static void btrfs_set_bit_hook(struct inode *inode,
                         spin_unlock(&BTRFS_I(inode)->lock);
                 }
 
+                /* For sanity tests */
+                if (btrfs_test_is_dummy_root(root))
+                        return;
+
                 __percpu_counter_add(&root->fs_info->delalloc_bytes, len,
                                      root->fs_info->delalloc_batch);
                 spin_lock(&BTRFS_I(inode)->lock);
@@ -1741,6 +1760,10 @@ static void btrfs_clear_bit_hook(struct inode *inode,
                     root != root->fs_info->tree_root)
                         btrfs_delalloc_release_metadata(inode, len);
 
+                /* For sanity tests. */
+                if (btrfs_test_is_dummy_root(root))
+                        return;
+
                 if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
                     && do_list && !(state->state & EXTENT_NORESERVE))
                         btrfs_free_reserved_data_space(inode, len);
@@ -7213,7 +7236,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
         u64 start = iblock << inode->i_blkbits;
         u64 lockstart, lockend;
         u64 len = bh_result->b_size;
-        u64 orig_len = len;
+        u64 *outstanding_extents = NULL;
         int unlock_bits = EXTENT_LOCKED;
         int ret = 0;
 
@@ -7225,6 +7248,16 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
         lockstart = start;
         lockend = start + len - 1;
 
+        if (current->journal_info) {
+                /*
+                 * Need to pull our outstanding extents and set journal_info to NULL so
+                 * that anything that needs to check if there's a transction doesn't get
+                 * confused.
+                 */
+                outstanding_extents = current->journal_info;
+                current->journal_info = NULL;
+        }
+
         /*
          * If this errors out it's because we couldn't invalidate pagecache for
          * this range and we need to fallback to buffered.
@@ -7348,11 +7381,20 @@ unlock:
                 if (start + len > i_size_read(inode))
                         i_size_write(inode, start + len);
 
-                if (len < orig_len) {
+                /*
+                 * If we have an outstanding_extents count still set then we're
+                 * within our reservation, otherwise we need to adjust our inode
+                 * counter appropriately.
+                 */
+                if (*outstanding_extents) {
+                        (*outstanding_extents)--;
+                } else {
                         spin_lock(&BTRFS_I(inode)->lock);
                         BTRFS_I(inode)->outstanding_extents++;
                         spin_unlock(&BTRFS_I(inode)->lock);
                 }
+
+                current->journal_info = outstanding_extents;
                 btrfs_free_reserved_data_space(inode, len);
         }
 
@@ -7376,6 +7418,8 @@ unlock:
 unlock_err:
         clear_extent_bit(&BTRFS_I(inode)->io_tree, lockstart, lockend,
                          unlock_bits, 1, 0, &cached_state, GFP_NOFS);
+        if (outstanding_extents)
+                current->journal_info = outstanding_extents;
         return ret;
 }
 
@@ -8075,6 +8119,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 {
         struct file *file = iocb->ki_filp;
         struct inode *inode = file->f_mapping->host;
+        u64 outstanding_extents = 0;
         size_t count = 0;
         int flags = 0;
         bool wakeup = true;
@@ -8112,6 +8157,16 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
                 ret = btrfs_delalloc_reserve_space(inode, count);
                 if (ret)
                         goto out;
+                outstanding_extents = div64_u64(count +
+                                                BTRFS_MAX_EXTENT_SIZE - 1,
+                                                BTRFS_MAX_EXTENT_SIZE);
+
+                /*
+                 * We need to know how many extents we reserved so that we can
+                 * do the accounting properly if we go over the number we
+                 * originally calculated.  Abuse current->journal_info for this.
+                 */
+                current->journal_info = &outstanding_extents;
         } else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
                                      &BTRFS_I(inode)->runtime_flags)) {
                 inode_dio_done(inode);
@@ -8124,6 +8179,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
                         iter, offset, btrfs_get_blocks_direct, NULL,
                         btrfs_submit_direct, flags);
         if (rw & WRITE) {
+                current->journal_info = NULL;
                 if (ret < 0 && ret != -EIOCBQUEUED)
                         btrfs_delalloc_release_space(inode, count);
                 else if (ret >= 0 && (size_t)ret < count)
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 97159a8e91d4..058c79eecbfb 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1259,7 +1259,7 @@ static int comp_oper(struct btrfs_qgroup_operation *oper1,
         if (oper1->seq < oper2->seq)
                 return -1;
         if (oper1->seq > oper2->seq)
-                return -1;
+                return 1;
         if (oper1->ref_root < oper2->ref_root)
                 return -1;
         if (oper1->ref_root > oper2->ref_root)
diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c
index a116b55ce788..054fc0d97131 100644
--- a/fs/btrfs/tests/inode-tests.c
+++ b/fs/btrfs/tests/inode-tests.c
@@ -911,6 +911,197 @@ out:
         return ret;
 }
 
+static int test_extent_accounting(void)
+{
+        struct inode *inode = NULL;
+        struct btrfs_root *root = NULL;
+        int ret = -ENOMEM;
+
+        inode = btrfs_new_test_inode();
+        if (!inode) {
+                test_msg("Couldn't allocate inode\n");
+                return ret;
+        }
+
+        root = btrfs_alloc_dummy_root();
+        if (IS_ERR(root)) {
+                test_msg("Couldn't allocate root\n");
+                goto out;
+        }
+
+        root->fs_info = btrfs_alloc_dummy_fs_info();
+        if (!root->fs_info) {
+                test_msg("Couldn't allocate dummy fs info\n");
+                goto out;
+        }
+
+        BTRFS_I(inode)->root = root;
+        btrfs_test_inode_set_ops(inode);
+
+        /* [BTRFS_MAX_EXTENT_SIZE] */
+        BTRFS_I(inode)->outstanding_extents++;
+        ret = btrfs_set_extent_delalloc(inode, 0, BTRFS_MAX_EXTENT_SIZE - 1,
+                                        NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 1) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 1, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* [BTRFS_MAX_EXTENT_SIZE][4k] */
+        BTRFS_I(inode)->outstanding_extents++;
+        ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE,
+                                        BTRFS_MAX_EXTENT_SIZE + 4095, NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 2) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 2, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* [BTRFS_MAX_EXTENT_SIZE/2][4K HOLE][the rest] */
+        ret = clear_extent_bit(&BTRFS_I(inode)->io_tree,
+                               BTRFS_MAX_EXTENT_SIZE >> 1,
+                               (BTRFS_MAX_EXTENT_SIZE >> 1) + 4095,
+                               EXTENT_DELALLOC | EXTENT_DIRTY |
+                               EXTENT_UPTODATE | EXTENT_DO_ACCOUNTING, 0, 0,
+                               NULL, GFP_NOFS);
+        if (ret) {
+                test_msg("clear_extent_bit returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 2) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 2, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* [BTRFS_MAX_EXTENT_SIZE][4K] */
+        BTRFS_I(inode)->outstanding_extents++;
+        ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE >> 1,
+                                        (BTRFS_MAX_EXTENT_SIZE >> 1) + 4095,
+                                        NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 2) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 2, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /*
+         * [BTRFS_MAX_EXTENT_SIZE+4K][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4K]
+         *
+         * I'm artificially adding 2 to outstanding_extents because in the
+         * buffered IO case we'd add things up as we go, but I don't feel like
+         * doing that here, this isn't the interesting case we want to test.
+         */
+        BTRFS_I(inode)->outstanding_extents += 2;
+        ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE + 8192,
+                                        (BTRFS_MAX_EXTENT_SIZE << 1) + 12287,
+                                        NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 4) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 4, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* [BTRFS_MAX_EXTENT_SIZE+4k][4k][BTRFS_MAX_EXTENT_SIZE+4k] */
+        BTRFS_I(inode)->outstanding_extents++;
+        ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096,
+                                        BTRFS_MAX_EXTENT_SIZE+8191, NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 3) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 3, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* [BTRFS_MAX_EXTENT_SIZE+4k][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4k] */
+        ret = clear_extent_bit(&BTRFS_I(inode)->io_tree,
+                               BTRFS_MAX_EXTENT_SIZE+4096,
+                               BTRFS_MAX_EXTENT_SIZE+8191,
+                               EXTENT_DIRTY | EXTENT_DELALLOC |
+                               EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+                               NULL, GFP_NOFS);
+        if (ret) {
+                test_msg("clear_extent_bit returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 4) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 4, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /*
+         * Refill the hole again just for good measure, because I thought it
+         * might fail and I'd rather satisfy my paranoia at this point.
+         */
+        BTRFS_I(inode)->outstanding_extents++;
+        ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096,
+                                        BTRFS_MAX_EXTENT_SIZE+8191, NULL);
+        if (ret) {
+                test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents != 3) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 3, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+
+        /* Empty */
+        ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
+                               EXTENT_DIRTY | EXTENT_DELALLOC |
+                               EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+                               NULL, GFP_NOFS);
+        if (ret) {
+                test_msg("clear_extent_bit returned %d\n", ret);
+                goto out;
+        }
+        if (BTRFS_I(inode)->outstanding_extents) {
+                ret = -EINVAL;
+                test_msg("Miscount, wanted 0, got %u\n",
+                         BTRFS_I(inode)->outstanding_extents);
+                goto out;
+        }
+        ret = 0;
+out:
+        if (ret)
+                clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
+                                 EXTENT_DIRTY | EXTENT_DELALLOC |
+                                 EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+                                 NULL, GFP_NOFS);
+        iput(inode);
+        btrfs_free_dummy_root(root);
+        return ret;
+}
+
 int btrfs_test_inodes(void)
 {
         int ret;
@@ -924,5 +1115,9 @@ int btrfs_test_inodes(void)
         if (ret)
                 return ret;
         test_msg("Running hole first btrfs_get_extent test\n");
-        return test_hole_first();
+        ret = test_hole_first();
+        if (ret)
+                return ret;
+        test_msg("Running outstanding_extents tests\n");
+        return test_extent_accounting();
 }
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 88e51aded6bd..8be4278e25e8 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1023,17 +1023,13 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
         u64 old_root_bytenr;
         u64 old_root_used;
         struct btrfs_root *tree_root = root->fs_info->tree_root;
-        bool extent_root = (root->objectid == BTRFS_EXTENT_TREE_OBJECTID);
 
         old_root_used = btrfs_root_used(&root->root_item);
-        btrfs_write_dirty_block_groups(trans, root);
 
         while (1) {
                 old_root_bytenr = btrfs_root_bytenr(&root->root_item);
                 if (old_root_bytenr == root->node->start &&
-                    old_root_used == btrfs_root_used(&root->root_item) &&
-                    (!extent_root ||
-                     list_empty(&trans->transaction->dirty_bgs)))
+                    old_root_used == btrfs_root_used(&root->root_item))
                         break;
 
                 btrfs_set_root_node(&root->root_item, root->node);
@@ -1044,14 +1040,6 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
                         return ret;
 
                 old_root_used = btrfs_root_used(&root->root_item);
-                if (extent_root) {
-                        ret = btrfs_write_dirty_block_groups(trans, root);
-                        if (ret)
-                                return ret;
-                }
-                ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
-                if (ret)
-                        return ret;
         }
 
         return 0;
@@ -1068,6 +1056,7 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
                                          struct btrfs_root *root)
 {
         struct btrfs_fs_info *fs_info = root->fs_info;
+        struct list_head *dirty_bgs = &trans->transaction->dirty_bgs;
         struct list_head *next;
         struct extent_buffer *eb;
         int ret;
@@ -1095,11 +1084,15 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
         if (ret)
                 return ret;
 
+        ret = btrfs_setup_space_cache(trans, root);
+        if (ret)
+                return ret;
+
         /* run_qgroups might have added some more refs */
         ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
         if (ret)
                 return ret;
-
+again:
         while (!list_empty(&fs_info->dirty_cowonly_roots)) {
                 next = fs_info->dirty_cowonly_roots.next;
                 list_del_init(next);
@@ -1112,8 +1105,23 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
                 ret = update_cowonly_root(trans, root);
                 if (ret)
                         return ret;
+                ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
+                if (ret)
+                        return ret;
         }
 
+        while (!list_empty(dirty_bgs)) {
+                ret = btrfs_write_dirty_block_groups(trans, root);
+                if (ret)
+                        return ret;
+                ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
+                if (ret)
+                        return ret;
+        }
+
+        if (!list_empty(&fs_info->dirty_cowonly_roots))
+                goto again;
+
         list_add_tail(&fs_info->extent_root->dirty_list,
                       &trans->transaction->switch_commits);
         btrfs_after_dev_replace_commit(fs_info);
@@ -1811,6 +1819,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
                 wait_for_commit(root, cur_trans);
 
+                if (unlikely(cur_trans->aborted))
+                        ret = cur_trans->aborted;
+
                 btrfs_put_transaction(cur_trans);
 
                 return ret;
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ed19a7d622fa..39706c57ad3c 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -890,8 +890,8 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 
         newpage = buf->page;
 
-        if (WARN_ON(!PageUptodate(newpage)))
-                return -EIO;
+        if (!PageUptodate(newpage))
+                SetPageUptodate(newpage);
 
         ClearPageMappedToDisk(newpage);
 
@@ -1353,6 +1353,17 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
         return err;
 }
 
+static int fuse_dev_open(struct inode *inode, struct file *file)
+{
+        /*
+         * The fuse device's file's private_data is used to hold
+         * the fuse_conn(ection) when it is mounted, and is used to
+         * keep track of whether the file has been mounted already.
+         */
+        file->private_data = NULL;
+        return 0;
+}
+
 static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov,
                               unsigned long nr_segs, loff_t pos)
 {
@@ -1797,6 +1808,9 @@ copy_finish:
 static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
                        unsigned int size, struct fuse_copy_state *cs)
 {
+        /* Don't try to move pages (yet) */
+        cs->move_pages = 0;
+
         switch (code) {
         case FUSE_NOTIFY_POLL:
                 return fuse_notify_poll(fc, size, cs);
@@ -2217,6 +2231,7 @@ static int fuse_dev_fasync(int fd, struct file *file, int on)
 
 const struct file_operations fuse_dev_operations = {
         .owner          = THIS_MODULE,
+        .open           = fuse_dev_open,
         .llseek         = no_llseek,
         .read           = do_sync_read,
         .aio_read       = fuse_dev_read,
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 3c1bfa155571..1028a0629543 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -587,8 +587,6 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls)
 
         rpc_ntop((struct sockaddr *)&clp->cl_addr, addr_str, sizeof(addr_str));
 
-        nfsd4_cb_layout_fail(ls);
-
         printk(KERN_WARNING
                 "nfsd: client %s failed to respond to layout recall. "
                 "  Fencing..\n", addr_str);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index b90952f528b1..5f0d1993e6e3 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -529,8 +529,7 @@ static int ovl_remount(struct super_block *sb, int *flags, char *data)
 {
         struct ovl_fs *ufs = sb->s_fs_info;
 
-        if (!(*flags & MS_RDONLY) &&
-            (!ufs->upper_mnt || (ufs->upper_mnt->mnt_sb->s_flags & MS_RDONLY)))
+        if (!(*flags & MS_RDONLY) && !ufs->upper_mnt)
                 return -EROFS;
 
         return 0;
@@ -615,9 +614,19 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
                         break;
 
                 default:
+                        pr_err("overlayfs: unrecognized mount option \"%s\" or missing value\n", p);
                         return -EINVAL;
                 }
         }
+
+        /* Workdir is useless in non-upper mount */
+        if (!config->upperdir && config->workdir) {
+                pr_info("overlayfs: option \"workdir=%s\" is useless in a non-upper mount, ignore\n",
+                        config->workdir);
+                kfree(config->workdir);
+                config->workdir = NULL;
+        }
+
         return 0;
 }
 
@@ -837,7 +846,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
         sb->s_stack_depth = 0;
         if (ufs->config.upperdir) {
-                /* FIXME: workdir is not needed for a R/O mount */
                 if (!ufs->config.workdir) {
                         pr_err("overlayfs: missing 'workdir'\n");
                         goto out_free_config;
@@ -847,6 +855,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
                 if (err)
                         goto out_free_config;
 
+                /* Upper fs should not be r/o */
+                if (upperpath.mnt->mnt_sb->s_flags & MS_RDONLY) {
+                        pr_err("overlayfs: upper fs is r/o, try multi-lower layers mount\n");
+                        err = -EINVAL;
+                        goto out_put_upperpath;
+                }
+
                 err = ovl_mount_dir(ufs->config.workdir, &workpath);
                 if (err)
                         goto out_put_upperpath;
@@ -869,8 +884,14 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
         err = -EINVAL;
         stacklen = ovl_split_lowerdirs(lowertmp);
-        if (stacklen > OVL_MAX_STACK)
+        if (stacklen > OVL_MAX_STACK) {
+                pr_err("overlayfs: too many lower directries, limit is %d\n",
+                       OVL_MAX_STACK);
                 goto out_free_lowertmp;
+        } else if (!ufs->config.upperdir && stacklen == 1) {
+                pr_err("overlayfs: at least 2 lowerdir are needed while upperdir nonexistent\n");
+                goto out_free_lowertmp;
+        }
 
         stack = kcalloc(stacklen, sizeof(struct path), GFP_KERNEL);
         if (!stack)
@@ -932,8 +953,8 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
                 ufs->numlower++;
         }
 
-        /* If the upper fs is r/o or nonexistent, we mark overlayfs r/o too */
-        if (!ufs->upper_mnt || (ufs->upper_mnt->mnt_sb->s_flags & MS_RDONLY))
+        /* If the upper fs is nonexistent, we mark overlayfs r/o too */
+        if (!ufs->upper_mnt)
                 sb->s_flags |= MS_RDONLY;
 
         sb->s_d_op = &ovl_dentry_operations;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 956b75d61809..6dee68d013ff 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1325,6 +1325,9 @@ out:
 
 static int pagemap_open(struct inode *inode, struct file *file)
 {
+        /* do not disclose physical addresses: attack vector */
+        if (!capable(CAP_SYS_ADMIN))
+                return -EPERM;
         pr_warn_once("Bits 55-60 of /proc/PID/pagemap entries are about "
                         "to stop being page-shift some time soon. See the "
                         "linux/Documentation/vm/pagemap.txt for details.\n");
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 7c55dd5dd2c9..66203b268984 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -114,6 +114,7 @@ struct vgic_ops {
         void    (*sync_lr_elrsr)(struct kvm_vcpu *, int, struct vgic_lr);
         u64     (*get_elrsr)(const struct kvm_vcpu *vcpu);
         u64     (*get_eisr)(const struct kvm_vcpu *vcpu);
+        void    (*clear_eisr)(struct kvm_vcpu *vcpu);
         u32     (*get_interrupt_status)(const struct kvm_vcpu *vcpu);
         void    (*enable_underflow)(struct kvm_vcpu *vcpu);
         void    (*disable_underflow)(struct kvm_vcpu *vcpu);
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 2646aed1d3fe..fd23978d93fe 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -375,6 +375,7 @@ int dm_create(int minor, struct mapped_device **md);
  */
 struct mapped_device *dm_get_md(dev_t dev);
 void dm_get(struct mapped_device *md);
+int dm_hold(struct mapped_device *md);
 void dm_put(struct mapped_device *md);
 
 /*
diff --git a/include/linux/module.h b/include/linux/module.h
index 42999fe2dbd0..b03485bcb82a 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -344,6 +344,10 @@ struct module {
         unsigned long *ftrace_callsites;
 #endif
 
+#ifdef CONFIG_LIVEPATCH
+        bool klp_alive;
+#endif
+
 #ifdef CONFIG_MODULE_UNLOAD
         /* What modules depend on me? */
         struct list_head source_list;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 429d1790a27e..dcf6ec27739b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -965,9 +965,12 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  *      Used to add FDB entries to dump requests. Implementers should add
  *      entries to skb and update idx with the number of entries.
  *
- * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh)
+ * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *                           u16 flags)
  * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
  *                           struct net_device *dev, u32 filter_mask)
+ * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *                           u16 flags);
  *
  * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
  *      Called to change device carrier. Soft-devices (like dummy, team, etc)
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 72c0415d6c21..18eccefea06e 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h
@@ -82,7 +82,7 @@ static inline int pinctrl_gpio_direction_output(unsigned gpio)
 
 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline void pinctrl_put(struct pinctrl *p)
@@ -93,7 +93,7 @@ static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
                                                         struct pinctrl *p,
                                                         const char *name)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline int pinctrl_select_state(struct pinctrl *p,
@@ -104,7 +104,7 @@ static inline int pinctrl_select_state(struct pinctrl *p,
 
 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
 {
-        return ERR_PTR(-ENOSYS);
+        return NULL;
 }
 
 static inline void devm_pinctrl_put(struct pinctrl *p)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 30007afe70b3..f54d6659713a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -948,6 +948,13 @@ static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from)
         to->l4_hash = from->l4_hash;
 };
 
+static inline void skb_sender_cpu_clear(struct sk_buff *skb)
+{
+#ifdef CONFIG_XPS
+        skb->sender_cpu = 0;
+#endif
+}
+
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
 {
diff --git a/include/net/dst.h b/include/net/dst.h
index a8ae4e760778..0fb99a26e973 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -481,6 +481,7 @@ void dst_init(void);
 enum {
         XFRM_LOOKUP_ICMP = 1 << 0,
         XFRM_LOOKUP_QUEUE = 1 << 1,
+        XFRM_LOOKUP_KEEP_DST_REF = 1 << 2,
 };
 
 struct flowi;
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index eabd3a038674..c73e7abbbaa5 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -91,6 +91,7 @@ struct vxlanhdr {
 
 #define VXLAN_N_VID     (1u << 24)
 #define VXLAN_VID_MASK  (VXLAN_N_VID - 1)
+#define VXLAN_VNI_MASK  (VXLAN_VID_MASK << 8)
 #define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
 
 struct vxlan_metadata {
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index db81c65b8f48..d61be7297b2c 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -111,6 +111,7 @@ void	array_free(void *array, int n);
 void    target_core_setup_sub_cits(struct se_subsystem_api *);
 
 /* attribute helpers from target_core_device.c for backend drivers */
+bool    se_dev_check_wce(struct se_device *);
 int     se_dev_set_max_unmap_lba_count(struct se_device *, u32);
 int     se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
 int     se_dev_set_unmap_granularity(struct se_device *, u32);
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 3c53eec4ae22..19c66fcbab8a 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -60,7 +60,7 @@ struct virtio_blk_config {
         __u32 size_max;
         /* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
         __u32 seg_max;
-        /* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+        /* geometry of the device (if VIRTIO_BLK_F_GEOMETRY) */
         struct virtio_blk_geometry {
                 __u16 cylinders;
                 __u8 heads;
@@ -119,7 +119,11 @@ struct virtio_blk_config {
 #define VIRTIO_BLK_T_BARRIER    0x80000000
 #endif /* !VIRTIO_BLK_NO_LEGACY */
 
-/* This is the first element of the read scatter-gather list. */
+/*
+ * This comes first in the read scatter-gather list.
+ * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated,
+ * this is the first element of the read scatter-gather list.
+ */
 struct virtio_blk_outhdr {
         /* VIRTIO_BLK_T* */
         __virtio32 type;
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
index 42b9370771b0..cc18ef8825c0 100644
--- a/include/uapi/linux/virtio_scsi.h
+++ b/include/uapi/linux/virtio_scsi.h
@@ -29,8 +29,16 @@
 
 #include <linux/virtio_types.h>
 
-#define VIRTIO_SCSI_CDB_SIZE   32
-#define VIRTIO_SCSI_SENSE_SIZE 96
+/* Default values of the CDB and sense data size configuration fields */
+#define VIRTIO_SCSI_CDB_DEFAULT_SIZE   32
+#define VIRTIO_SCSI_SENSE_DEFAULT_SIZE 96
+
+#ifndef VIRTIO_SCSI_CDB_SIZE
+#define VIRTIO_SCSI_CDB_SIZE VIRTIO_SCSI_CDB_DEFAULT_SIZE
+#endif
+#ifndef VIRTIO_SCSI_SENSE_SIZE
+#define VIRTIO_SCSI_SENSE_SIZE VIRTIO_SCSI_SENSE_DEFAULT_SIZE
+#endif
 
 /* SCSI command request, followed by data-out */
 struct virtio_scsi_cmd_req {
diff --git a/kernel/events/core.c b/kernel/events/core.c
index f04daabfd1cf..453ef61311d4 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3591,7 +3591,7 @@ static void put_event(struct perf_event *event)
         ctx = perf_event_ctx_lock_nested(event, SINGLE_DEPTH_NESTING);
         WARN_ON_ONCE(ctx->parent_ctx);
         perf_remove_from_context(event, true);
-        mutex_unlock(&ctx->mutex);
+        perf_event_ctx_unlock(event, ctx);
 
         _free_event(event);
 }
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 01ca08804f51..3f9f1d6b4c2e 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -89,16 +89,28 @@ static bool klp_is_object_loaded(struct klp_object *obj)
 /* sets obj->mod if object is not vmlinux and module is found */
 static void klp_find_object_module(struct klp_object *obj)
 {
+        struct module *mod;
+
         if (!klp_is_module(obj))
                 return;
 
         mutex_lock(&module_mutex);
         /*
-         * We don't need to take a reference on the module here because we have
-         * the klp_mutex, which is also taken by the module notifier.  This
-         * prevents any module from unloading until we release the klp_mutex.
+         * We do not want to block removal of patched modules and therefore
+         * we do not take a reference here. The patches are removed by
+         * a going module handler instead.
+         */
+        mod = find_module(obj->name);
+        /*
+         * Do not mess work of the module coming and going notifiers.
+         * Note that the patch might still be needed before the going handler
+         * is called. Module functions can be called even in the GOING state
+         * until mod->exit() finishes. This is especially important for
+         * patches that modify semantic of the functions.
          */
-        obj->mod = find_module(obj->name);
+        if (mod && mod->klp_alive)
+                obj->mod = mod;
+
         mutex_unlock(&module_mutex);
 }
 
@@ -767,6 +779,7 @@ static int klp_init_object(struct klp_patch *patch, struct klp_object *obj)
                 return -EINVAL;
 
         obj->state = KLP_DISABLED;
+        obj->mod = NULL;
 
         klp_find_object_module(obj);
 
@@ -961,6 +974,15 @@ static int klp_module_notify(struct notifier_block *nb, unsigned long action,
 
         mutex_lock(&klp_mutex);
 
+        /*
+         * Each module has to know that the notifier has been called.
+         * We never know what module will get patched by a new patch.
+         */
+        if (action == MODULE_STATE_COMING)
+                mod->klp_alive = true;
+        else /* MODULE_STATE_GOING */
+                mod->klp_alive = false;
+
         list_for_each_entry(patch, &klp_patches, list) {
                 for (obj = patch->objs; obj->funcs; obj++) {
                         if (!klp_is_module(obj) || strcmp(obj->name, mod->name))
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index d8e376a5f0f1..36a1a739ad68 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -658,14 +658,30 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
 static void p9_virtio_remove(struct virtio_device *vdev)
 {
         struct virtio_chan *chan = vdev->priv;
-
-        if (chan->inuse)
-                p9_virtio_close(chan->client);
-        vdev->config->del_vqs(vdev);
+        unsigned long warning_time;
 
         mutex_lock(&virtio_9p_lock);
+
+        /* Remove self from list so we don't get new users. */
         list_del(&chan->chan_list);
+        warning_time = jiffies;
+
+        /* Wait for existing users to close. */
+        while (chan->inuse) {
+                mutex_unlock(&virtio_9p_lock);
+                msleep(250);
+                if (time_after(jiffies, warning_time + 10 * HZ)) {
+                        dev_emerg(&vdev->dev,
+                                  "p9_virtio_remove: waiting for device in use.\n");
+                        warning_time = jiffies;
+                }
+                mutex_lock(&virtio_9p_lock);
+        }
+
         mutex_unlock(&virtio_9p_lock);
+
+        vdev->config->del_vqs(vdev);
+
         sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);
         kobject_uevent(&(vdev->dev.kobj), KOBJ_CHANGE);
         kfree(chan->tag);
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index b087d278c679..1849d96b3c91 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -563,6 +563,8 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
          */
         del_nbp(p);
 
+        dev_set_mtu(br->dev, br_min_mtu(br));
+
         spin_lock_bh(&br->lock);
         changed_addr = br_stp_recalculate_bridge_id(br);
         spin_unlock_bh(&br->lock);
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 769b185fefbd..a6e2da0bc718 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -281,7 +281,7 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock,
         int copylen;
 
         ret = -EOPNOTSUPP;
-        if (m->msg_flags&MSG_OOB)
+        if (flags & MSG_OOB)
                 goto read_error;
 
         skb = skb_recv_datagram(sk, flags, 0 , &ret);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 25b4b5d23485..ee0608bb3bc0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2166,28 +2166,28 @@ replay:
                         }
                 }
                 err = rtnl_configure_link(dev, ifm);
-                if (err < 0) {
-                        if (ops->newlink) {
-                                LIST_HEAD(list_kill);
-
-                                ops->dellink(dev, &list_kill);
-                                unregister_netdevice_many(&list_kill);
-                        } else {
-                                unregister_netdevice(dev);
-                        }
-                        goto out;
-                }
-
+                if (err < 0)
+                        goto out_unregister;
                 if (link_net) {
                         err = dev_change_net_namespace(dev, dest_net, ifname);
                         if (err < 0)
-                                unregister_netdevice(dev);
+                                goto out_unregister;
                 }
 out:
                 if (link_net)
                         put_net(link_net);
                 put_net(dest_net);
                 return err;
+out_unregister:
+                if (ops->newlink) {
+                        LIST_HEAD(list_kill);
+
+                        ops->dellink(dev, &list_kill);
+                        unregister_netdevice_many(&list_kill);
+                } else {
+                        unregister_netdevice(dev);
+                }
+                goto out;
         }
 }
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f80507823531..8e4ac97c8477 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3733,9 +3733,13 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb,
                      struct sock *sk, int tstype)
 {
         struct sk_buff *skb;
-        bool tsonly = sk->sk_tsflags & SOF_TIMESTAMPING_OPT_TSONLY;
+        bool tsonly;
 
-        if (!sk || !skb_may_tx_timestamp(sk, tsonly))
+        if (!sk)
+                return;
+
+        tsonly = sk->sk_tsflags & SOF_TIMESTAMPING_OPT_TSONLY;
+        if (!skb_may_tx_timestamp(sk, tsonly))
                 return;
 
         if (tsonly)
@@ -4173,7 +4177,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
         skb->ignore_df = 0;
         skb_dst_drop(skb);
         skb->mark = 0;
-        skb->sender_cpu = 0;
+        skb_sender_cpu_clear(skb);
         skb_init_secmark(skb);
         secpath_reset(skb);
         nf_reset(skb);
diff --git a/net/core/sock.c b/net/core/sock.c
index 93c8b20c91e4..78e89eb7eb70 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1655,6 +1655,10 @@ void sock_rfree(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(sock_rfree);
 
+/*
+ * Buffer destructor for skbs that are not used directly in read or write
+ * path, e.g. for error handler skbs. Automatically called from kfree_skb.
+ */
 void sock_efree(struct sk_buff *skb)
 {
         sock_put(skb->sk);
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 433424804284..8ce351ffceb1 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -25,6 +25,8 @@
 static int zero = 0;
 static int one = 1;
 static int ushort_max = USHRT_MAX;
+static int min_sndbuf = SOCK_MIN_SNDBUF;
+static int min_rcvbuf = SOCK_MIN_RCVBUF;
 
 static int net_msg_warn;        /* Unused, but still a sysctl */
 
@@ -237,7 +239,7 @@ static struct ctl_table net_core_table[] = {
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec_minmax,
-                .extra1         = &one,
+                .extra1         = &min_sndbuf,
         },
         {
                 .procname       = "rmem_max",
@@ -245,7 +247,7 @@ static struct ctl_table net_core_table[] = {
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec_minmax,
-                .extra1         = &one,
+                .extra1         = &min_rcvbuf,
         },
         {
                 .procname       = "wmem_default",
@@ -253,7 +255,7 @@ static struct ctl_table net_core_table[] = {
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec_minmax,
-                .extra1         = &one,
+                .extra1         = &min_sndbuf,
         },
         {
                 .procname       = "rmem_default",
@@ -261,7 +263,7 @@ static struct ctl_table net_core_table[] = {
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec_minmax,
-                .extra1         = &one,
+                .extra1         = &min_rcvbuf,
         },
         {
                 .procname       = "dev_weight",
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 14d02ea905b6..3e44b9b0b78e 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -268,6 +268,7 @@ static int inet_csk_wait_for_connect(struct sock *sk, long timeo)
                 release_sock(sk);
                 if (reqsk_queue_empty(&icsk->icsk_accept_queue))
                         timeo = schedule_timeout(timeo);
+                sched_annotate_sleep();
                 lock_sock(sk);
                 err = 0;
                 if (!reqsk_queue_empty(&icsk->icsk_accept_queue))
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 81751f12645f..592aff37366b 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -71,6 +71,20 @@ static inline void inet_diag_unlock_handler(
         mutex_unlock(&inet_diag_table_mutex);
 }
 
+static size_t inet_sk_attr_size(void)
+{
+        return    nla_total_size(sizeof(struct tcp_info))
+                + nla_total_size(1) /* INET_DIAG_SHUTDOWN */
+                + nla_total_size(1) /* INET_DIAG_TOS */
+                + nla_total_size(1) /* INET_DIAG_TCLASS */
+                + nla_total_size(sizeof(struct inet_diag_meminfo))
+                + nla_total_size(sizeof(struct inet_diag_msg))
+                + nla_total_size(SK_MEMINFO_VARS * sizeof(u32))
+                + nla_total_size(TCP_CA_NAME_MAX)
+                + nla_total_size(sizeof(struct tcpvegas_info))
+                + 64;
+}
+
 int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
                               struct sk_buff *skb, struct inet_diag_req_v2 *req,
                               struct user_namespace *user_ns,                   
@@ -326,9 +340,7 @@ int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *in_s
         if (err)
                 goto out;
 
-        rep = nlmsg_new(sizeof(struct inet_diag_msg) +
-                        sizeof(struct inet_diag_meminfo) +
-                        sizeof(struct tcp_info) + 64, GFP_KERNEL);
+        rep = nlmsg_new(inet_sk_attr_size(), GFP_KERNEL);
         if (!rep) {
                 err = -ENOMEM;
                 goto out;
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 787b3c294ce6..d9bc28ac5d1b 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -67,6 +67,7 @@ static int ip_forward_finish(struct sk_buff *skb)
         if (unlikely(opt->optlen))
                 ip_forward_options(skb);
 
+        skb_sender_cpu_clear(skb);
         return dst_output(skb);
 }
 
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index d694088214cd..62856e185a93 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -378,6 +378,12 @@ EXPORT_SYMBOL_GPL(tcp_slow_start);
  */
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w, u32 acked)
 {
+        /* If credits accumulated at a higher w, apply them gently now. */
+        if (tp->snd_cwnd_cnt >= w) {
+                tp->snd_cwnd_cnt = 0;
+                tp->snd_cwnd++;
+        }
+
         tp->snd_cwnd_cnt += acked;
         if (tp->snd_cwnd_cnt >= w) {
                 u32 delta = tp->snd_cwnd_cnt / w;
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 4b276d1ed980..06d3d665a9fd 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -306,8 +306,10 @@ tcp_friendliness:
                 }
         }
 
-        if (ca->cnt == 0)                       /* cannot be zero */
-                ca->cnt = 1;
+        /* The maximum rate of cwnd increase CUBIC allows is 1 packet per
+         * 2 packets ACKed, meaning cwnd grows at 1.5x per RTT.
+         */
+        ca->cnt = max(ca->cnt, 2U);
 }
 
 static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index d5f6bd9a210a..dab73813cb92 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -63,6 +63,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
                 return err;
 
         IPCB(skb)->flags |= IPSKB_XFRM_TUNNEL_SIZE;
+        skb->protocol = htons(ETH_P_IP);
 
         return x->outer_mode->output2(x, skb);
 }
@@ -71,7 +72,6 @@ EXPORT_SYMBOL(xfrm4_prepare_output);
 int xfrm4_output_finish(struct sk_buff *skb)
 {
         memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
-        skb->protocol = htons(ETH_P_IP);
 
 #ifdef CONFIG_NETFILTER
         IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 0a04a37305d5..7e80b61b51ff 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -318,6 +318,7 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
 
 static inline int ip6_forward_finish(struct sk_buff *skb)
 {
+        skb_sender_cpu_clear(skb);
         return dst_output(skb);
 }
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 266a264ec212..ddd94eca19b3 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -314,7 +314,7 @@ out:
  *   Create tunnel matching given parameters.
  *
  * Return:
- *   created tunnel or NULL
+ *   created tunnel or error pointer
  **/
 
 static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
@@ -322,7 +322,7 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
         struct net_device *dev;
         struct ip6_tnl *t;
         char name[IFNAMSIZ];
-        int err;
+        int err = -ENOMEM;
 
         if (p->name[0])
                 strlcpy(name, p->name, IFNAMSIZ);
@@ -348,7 +348,7 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
 failed_free:
         ip6_dev_free(dev);
 failed:
-        return NULL;
+        return ERR_PTR(err);
 }
 
 /**
@@ -362,7 +362,7 @@ failed:
  *   tunnel device is created and registered for use.
  *
  * Return:
- *   matching tunnel or NULL
+ *   matching tunnel or error pointer
  **/
 
 static struct ip6_tnl *ip6_tnl_locate(struct net *net,
@@ -380,13 +380,13 @@ static struct ip6_tnl *ip6_tnl_locate(struct net *net,
                 if (ipv6_addr_equal(local, &t->parms.laddr) &&
                     ipv6_addr_equal(remote, &t->parms.raddr)) {
                         if (create)
-                                return NULL;
+                                return ERR_PTR(-EEXIST);
 
                         return t;
                 }
         }
         if (!create)
-                return NULL;
+                return ERR_PTR(-ENODEV);
         return ip6_tnl_create(net, p);
 }
 
@@ -1420,7 +1420,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                         }
                         ip6_tnl_parm_from_user(&p1, &p);
                         t = ip6_tnl_locate(net, &p1, 0);
-                        if (t == NULL)
+                        if (IS_ERR(t))
                                 t = netdev_priv(dev);
                 } else {
                         memset(&p, 0, sizeof(p));
@@ -1445,7 +1445,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                 ip6_tnl_parm_from_user(&p1, &p);
                 t = ip6_tnl_locate(net, &p1, cmd == SIOCADDTUNNEL);
                 if (cmd == SIOCCHGTUNNEL) {
-                        if (t != NULL) {
+                        if (!IS_ERR(t)) {
                                 if (t->dev != dev) {
                                         err = -EEXIST;
                                         break;
@@ -1457,14 +1457,15 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                         else
                                 err = ip6_tnl_update(t, &p1);
                 }
-                if (t) {
+                if (!IS_ERR(t)) {
                         err = 0;
                         ip6_tnl_parm_to_user(&p, &t->parms);
                         if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof(p)))
                                 err = -EFAULT;
 
-                } else
-                        err = (cmd == SIOCADDTUNNEL ? -ENOBUFS : -ENOENT);
+                } else {
+                        err = PTR_ERR(t);
+                }
                 break;
         case SIOCDELTUNNEL:
                 err = -EPERM;
@@ -1478,7 +1479,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                         err = -ENOENT;
                         ip6_tnl_parm_from_user(&p1, &p);
                         t = ip6_tnl_locate(net, &p1, 0);
-                        if (t == NULL)
+                        if (IS_ERR(t))
                                 break;
                         err = -EPERM;
                         if (t->dev == ip6n->fb_tnl_dev)
@@ -1672,12 +1673,13 @@ static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
                            struct nlattr *tb[], struct nlattr *data[])
 {
         struct net *net = dev_net(dev);
-        struct ip6_tnl *nt;
+        struct ip6_tnl *nt, *t;
 
         nt = netdev_priv(dev);
         ip6_tnl_netlink_parms(data, &nt->parms);
 
-        if (ip6_tnl_locate(net, &nt->parms, 0))
+        t = ip6_tnl_locate(net, &nt->parms, 0);
+        if (!IS_ERR(t))
                 return -EEXIST;
 
         return ip6_tnl_create2(dev);
@@ -1697,8 +1699,7 @@ static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
         ip6_tnl_netlink_parms(data, &p);
 
         t = ip6_tnl_locate(net, &p, 0);
-
-        if (t) {
+        if (!IS_ERR(t)) {
                 if (t->dev != dev)
                         return -EEXIST;
         } else
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index ca3f29b98ae5..010f8bd2d577 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -114,6 +114,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
                 return err;
 
         skb->ignore_df = 1;
+        skb->protocol = htons(ETH_P_IPV6);
 
         return x->outer_mode->output2(x, skb);
 }
@@ -122,7 +123,6 @@ EXPORT_SYMBOL(xfrm6_prepare_output);
 int xfrm6_output_finish(struct sk_buff *skb)
 {
         memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
-        skb->protocol = htons(ETH_P_IPV6);
 
 #ifdef CONFIG_NETFILTER
         IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 48bf5a06847b..8d2d01b4800a 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -200,6 +200,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 
 #if IS_ENABLED(CONFIG_IPV6_MIP6)
                 case IPPROTO_MH:
+                        offset += ipv6_optlen(exthdr);
                         if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
                                 struct ip6_mh *mh;
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3afe36824703..8d53d65bd2ab 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -58,13 +58,24 @@ struct ieee80211_local;
 #define IEEE80211_UNSET_POWER_LEVEL     INT_MIN
 
 /*
- * Some APs experience problems when working with U-APSD. Decrease the
- * probability of that happening by using legacy mode for all ACs but VO.
- * The AP that caused us trouble was a Cisco 4410N. It ignores our
- * setting, and always treats non-VO ACs as legacy.
+ * Some APs experience problems when working with U-APSD. Decreasing the
+ * probability of that happening by using legacy mode for all ACs but VO isn't
+ * enough.
+ *
+ * Cisco 4410N originally forced us to enable VO by default only because it
+ * treated non-VO ACs as legacy.
+ *
+ * However some APs (notably Netgear R7000) silently reclassify packets to
+ * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
+ * clients would never see some frames (e.g. ARP responses) or would fetch them
+ * accidentally after a long time.
+ *
+ * It makes little sense to enable u-APSD queues by default because it needs
+ * userspace applications to be aware of it to actually take advantage of the
+ * possible additional powersavings. Implicitly depending on driver autotrigger
+ * frame support doesn't make much sense.
  */
-#define IEEE80211_DEFAULT_UAPSD_QUEUES \
-        IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
+#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
 
 #define IEEE80211_DEFAULT_MAX_SP_LEN            \
         IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
@@ -453,6 +464,7 @@ struct ieee80211_if_managed {
         unsigned int flags;
 
         bool csa_waiting_bcn;
+        bool csa_ignored_same_chan;
 
         bool beacon_crc_valid;
         u32 beacon_crc;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 10ac6324c1d0..142f66aece18 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1150,6 +1150,17 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
                 return;
         }
 
+        if (cfg80211_chandef_identical(&csa_ie.chandef,
+                                       &sdata->vif.bss_conf.chandef)) {
+                if (ifmgd->csa_ignored_same_chan)
+                        return;
+                sdata_info(sdata,
+                           "AP %pM tries to chanswitch to same channel, ignore\n",
+                           ifmgd->associated->bssid);
+                ifmgd->csa_ignored_same_chan = true;
+                return;
+        }
+
         mutex_lock(&local->mtx);
         mutex_lock(&local->chanctx_mtx);
         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
@@ -1210,6 +1221,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
         sdata->vif.csa_active = true;
         sdata->csa_chandef = csa_ie.chandef;
         sdata->csa_block_tx = csa_ie.mode;
+        ifmgd->csa_ignored_same_chan = false;
 
         if (sdata->csa_block_tx)
                 ieee80211_stop_vif_queues(local, sdata,
@@ -2090,6 +2102,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
         sdata->vif.csa_active = false;
         ifmgd->csa_waiting_bcn = false;
+        ifmgd->csa_ignored_same_chan = false;
         if (sdata->csa_block_tx) {
                 ieee80211_wake_vif_queues(local, sdata,
                                           IEEE80211_QUEUE_STOP_REASON_CSA);
@@ -3204,7 +3217,8 @@ static const u64 care_about_ies =
         (1ULL << WLAN_EID_CHANNEL_SWITCH) |
         (1ULL << WLAN_EID_PWR_CONSTRAINT) |
         (1ULL << WLAN_EID_HT_CAPABILITY) |
-        (1ULL << WLAN_EID_HT_OPERATION);
+        (1ULL << WLAN_EID_HT_OPERATION) |
+        (1ULL << WLAN_EID_EXT_CHANSWITCH_ANN);
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
                                      struct ieee80211_mgmt *mgmt, size_t len,
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1101563357ea..944bdc04e913 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2214,6 +2214,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
         hdr = (struct ieee80211_hdr *) skb->data;
         mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
 
+        if (ieee80211_drop_unencrypted(rx, hdr->frame_control))
+                return RX_DROP_MONITOR;
+
         /* frame is in RMC, don't forward */
         if (ieee80211_is_data(hdr->frame_control) &&
             is_multicast_ether_addr(hdr->addr1) &&
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 8428f4a95479..747bdcf72e92 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3178,7 +3178,7 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
                 wdev_iter = &sdata_iter->wdev;
 
                 if (sdata_iter == sdata ||
-                    rcu_access_pointer(sdata_iter->vif.chanctx_conf) == NULL ||
+                    !ieee80211_sdata_running(sdata_iter) ||
                     local->hw.wiphy->software_iftypes & BIT(wdev_iter->iftype))
                         continue;
 
diff --git a/net/rds/iw_rdma.c b/net/rds/iw_rdma.c
index a817705ce2d0..dba8d0864f18 100644
--- a/net/rds/iw_rdma.c
+++ b/net/rds/iw_rdma.c
@@ -88,7 +88,9 @@ static unsigned int rds_iw_unmap_fastreg_list(struct rds_iw_mr_pool *pool,
                         int *unpinned);
 static void rds_iw_destroy_fastreg(struct rds_iw_mr_pool *pool, struct rds_iw_mr *ibmr);
 
-static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwdev, struct rdma_cm_id **cm_id)
+static int rds_iw_get_device(struct sockaddr_in *src, struct sockaddr_in *dst,
+                             struct rds_iw_device **rds_iwdev,
+                             struct rdma_cm_id **cm_id)
 {
         struct rds_iw_device *iwdev;
         struct rds_iw_cm_id *i_cm_id;
@@ -112,15 +114,15 @@ static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwd
                                 src_addr->sin_port,
                                 dst_addr->sin_addr.s_addr,
                                 dst_addr->sin_port,
-                                rs->rs_bound_addr,
-                                rs->rs_bound_port,
-                                rs->rs_conn_addr,
-                                rs->rs_conn_port);
+                                src->sin_addr.s_addr,
+                                src->sin_port,
+                                dst->sin_addr.s_addr,
+                                dst->sin_port);
 #ifdef WORKING_TUPLE_DETECTION
-                        if (src_addr->sin_addr.s_addr == rs->rs_bound_addr &&
-                            src_addr->sin_port == rs->rs_bound_port &&
-                            dst_addr->sin_addr.s_addr == rs->rs_conn_addr &&
-                            dst_addr->sin_port == rs->rs_conn_port) {
+                        if (src_addr->sin_addr.s_addr == src->sin_addr.s_addr &&
+                            src_addr->sin_port == src->sin_port &&
+                            dst_addr->sin_addr.s_addr == dst->sin_addr.s_addr &&
+                            dst_addr->sin_port == dst->sin_port) {
 #else
                         /* FIXME - needs to compare the local and remote
                          * ipaddr/port tuple, but the ipaddr is the only
@@ -128,7 +130,7 @@ static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwd
                          * zero'ed.  It doesn't appear to be properly populated
                          * during connection setup...
                          */
-                        if (src_addr->sin_addr.s_addr == rs->rs_bound_addr) {
+                        if (src_addr->sin_addr.s_addr == src->sin_addr.s_addr) {
 #endif
                                 spin_unlock_irq(&iwdev->spinlock);
                                 *rds_iwdev = iwdev;
@@ -180,19 +182,13 @@ int rds_iw_update_cm_id(struct rds_iw_device *rds_iwdev, struct rdma_cm_id *cm_i
 {
         struct sockaddr_in *src_addr, *dst_addr;
         struct rds_iw_device *rds_iwdev_old;
-        struct rds_sock rs;
         struct rdma_cm_id *pcm_id;
         int rc;
 
         src_addr = (struct sockaddr_in *)&cm_id->route.addr.src_addr;
         dst_addr = (struct sockaddr_in *)&cm_id->route.addr.dst_addr;
 
-        rs.rs_bound_addr = src_addr->sin_addr.s_addr;
-        rs.rs_bound_port = src_addr->sin_port;
-        rs.rs_conn_addr = dst_addr->sin_addr.s_addr;
-        rs.rs_conn_port = dst_addr->sin_port;
-
-        rc = rds_iw_get_device(&rs, &rds_iwdev_old, &pcm_id);
+        rc = rds_iw_get_device(src_addr, dst_addr, &rds_iwdev_old, &pcm_id);
         if (rc)
                 rds_iw_remove_cm_id(rds_iwdev, cm_id);
 
@@ -598,9 +594,17 @@ void *rds_iw_get_mr(struct scatterlist *sg, unsigned long nents,
         struct rds_iw_device *rds_iwdev;
         struct rds_iw_mr *ibmr = NULL;
         struct rdma_cm_id *cm_id;
+        struct sockaddr_in src = {
+                .sin_addr.s_addr = rs->rs_bound_addr,
+                .sin_port = rs->rs_bound_port,
+        };
+        struct sockaddr_in dst = {
+                .sin_addr.s_addr = rs->rs_conn_addr,
+                .sin_port = rs->rs_conn_port,
+        };
         int ret;
 
-        ret = rds_iw_get_device(rs, &rds_iwdev, &cm_id);
+        ret = rds_iw_get_device(&src, &dst, &rds_iwdev, &cm_id);
         if (ret || !cm_id) {
                 ret = -ENODEV;
                 goto out;
diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index 4575485ad1b4..19a560626dc4 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -87,7 +87,7 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
                 if (!skb) {
                         /* nothing remains on the queue */
                         if (copied &&
-                            (msg->msg_flags & MSG_PEEK || timeo == 0))
+                            (flags & MSG_PEEK || timeo == 0))
                                 goto out;
 
                         /* wait for a message to turn up */
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 82c5d7fc1988..5f6288fa3f12 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -25,21 +25,41 @@ static int tcf_bpf(struct sk_buff *skb, const struct tc_action *a,
                    struct tcf_result *res)
 {
         struct tcf_bpf *b = a->priv;
-        int action;
-        int filter_res;
+        int action, filter_res;
 
         spin_lock(&b->tcf_lock);
+
         b->tcf_tm.lastuse = jiffies;
         bstats_update(&b->tcf_bstats, skb);
-        action = b->tcf_action;
 
         filter_res = BPF_PROG_RUN(b->filter, skb);
-        if (filter_res == 0) {
-                /* Return code 0 from the BPF program
-                 * is being interpreted as a drop here.
-                 */
-                action = TC_ACT_SHOT;
+
+        /* A BPF program may overwrite the default action opcode.
+         * Similarly as in cls_bpf, if filter_res == -1 we use the
+         * default action specified from tc.
+         *
+         * In case a different well-known TC_ACT opcode has been
+         * returned, it will overwrite the default one.
+         *
+         * For everything else that is unkown, TC_ACT_UNSPEC is
+         * returned.
+         */
+        switch (filter_res) {
+        case TC_ACT_PIPE:
+        case TC_ACT_RECLASSIFY:
+        case TC_ACT_OK:
+                action = filter_res;
+                break;
+        case TC_ACT_SHOT:
+                action = filter_res;
                 b->tcf_qstats.drops++;
+                break;
+        case TC_ACT_UNSPEC:
+                action = b->tcf_action;
+                break;
+        default:
+                action = TC_ACT_UNSPEC;
+                break;
         }
 
         spin_unlock(&b->tcf_lock);
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 09487afbfd51..95fdf4e40051 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -78,8 +78,11 @@ struct tc_u_hnode {
         struct tc_u_common      *tp_c;
         int                     refcnt;
         unsigned int            divisor;
-        struct tc_u_knode __rcu *ht[1];
         struct rcu_head         rcu;
+        /* The 'ht' field MUST be the last field in structure to allow for
+         * more entries allocated at end of structure.
+         */
+        struct tc_u_knode __rcu *ht[1];
 };
 
 struct tc_u_common {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index be2501538011..b6f84f6a2a09 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4400,6 +4400,16 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
         if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
                 return -EINVAL;
 
+        /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
+         * as userspace might just pass through the capabilities from the IEs
+         * directly, rather than enforcing this restriction and returning an
+         * error in this case.
+         */
+        if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
+                params.ht_capa = NULL;
+                params.vht_capa = NULL;
+        }
+
         /* When you run into this, adjust the code below for the new flag */
         BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index cee479bc655c..638af0655aaf 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2269,11 +2269,9 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
                  * have the xfrm_state's. We need to wait for KM to
                  * negotiate new SA's or bail out with error.*/
                 if (net->xfrm.sysctl_larval_drop) {
-                        dst_release(dst);
-                        xfrm_pols_put(pols, drop_pols);
                         XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
-
-                        return ERR_PTR(-EREMOTE);
+                        err = -EREMOTE;
+                        goto error;
                 }
 
                 err = -EAGAIN;
@@ -2324,7 +2322,8 @@ nopol:
 error:
         dst_release(dst);
 dropdst:
-        dst_release(dst_orig);
+        if (!(flags & XFRM_LOOKUP_KEEP_DST_REF))
+                dst_release(dst_orig);
         xfrm_pols_put(pols, drop_pols);
         return ERR_PTR(err);
 }
@@ -2338,7 +2337,8 @@ struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig,
                                     struct sock *sk, int flags)
 {
         struct dst_entry *dst = xfrm_lookup(net, dst_orig, fl, sk,
-                                            flags | XFRM_LOOKUP_QUEUE);
+                                            flags | XFRM_LOOKUP_QUEUE |
+                                            XFRM_LOOKUP_KEEP_DST_REF);
 
         if (IS_ERR(dst) && PTR_ERR(dst) == -EREMOTE)
                 return make_blackhole(net, dst_orig->ops->family, dst_orig);
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index fe18071bf93a..8ec5289f8e05 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -687,13 +687,30 @@ static int get_amp_val_to_activate(struct hda_codec *codec, hda_nid_t nid,
         return val;
 }
 
+/* is this a stereo widget or a stereo-to-mono mix? */
+static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid, int dir)
+{
+        unsigned int wcaps = get_wcaps(codec, nid);
+        hda_nid_t conn;
+
+        if (wcaps & AC_WCAP_STEREO)
+                return true;
+        if (dir != HDA_INPUT || get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
+                return false;
+        if (snd_hda_get_num_conns(codec, nid) != 1)
+                return false;
+        if (snd_hda_get_connections(codec, nid, &conn, 1) < 0)
+                return false;
+        return !!(get_wcaps(codec, conn) & AC_WCAP_STEREO);
+}
+
 /* initialize the amp value (only at the first time) */
 static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
 {
         unsigned int caps = query_amp_caps(codec, nid, dir);
         int val = get_amp_val_to_activate(codec, nid, dir, caps, false);
 
-        if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+        if (is_stereo_amps(codec, nid, dir))
                 snd_hda_codec_amp_init_stereo(codec, nid, dir, idx, 0xff, val);
         else
                 snd_hda_codec_amp_init(codec, nid, 0, dir, idx, 0xff, val);
@@ -703,7 +720,7 @@ static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
 static int update_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx,
                       unsigned int mask, unsigned int val)
 {
-        if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+        if (is_stereo_amps(codec, nid, dir))
                 return snd_hda_codec_amp_stereo(codec, nid, dir, idx,
                                                 mask, val);
         else
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index ce5a6da83419..05e19f78b4cb 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -134,13 +134,38 @@ static void print_amp_caps(struct snd_info_buffer *buffer,
                     (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
 }
 
+/* is this a stereo widget or a stereo-to-mono mix? */
+static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
+                           int dir, unsigned int wcaps, int indices)
+{
+        hda_nid_t conn;
+
+        if (wcaps & AC_WCAP_STEREO)
+                return true;
+        /* check for a stereo-to-mono mix; it must be:
+         * only a single connection, only for input, and only a mixer widget
+         */
+        if (indices != 1 || dir != HDA_INPUT ||
+            get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
+                return false;
+
+        if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
+                return false;
+        /* the connection source is a stereo? */
+        wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
+        return !!(wcaps & AC_WCAP_STEREO);
+}
+
 static void print_amp_vals(struct snd_info_buffer *buffer,
                            struct hda_codec *codec, hda_nid_t nid,
-                           int dir, int stereo, int indices)
+                           int dir, unsigned int wcaps, int indices)
 {
         unsigned int val;
+        bool stereo;
         int i;
 
+        stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
+
         dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
         for (i = 0; i < indices; i++) {
                 snd_iprintf(buffer, " [");
@@ -757,12 +782,10 @@ static void print_codec_info(struct snd_info_entry *entry,
                             (codec->single_adc_amp &&
                              wid_type == AC_WID_AUD_IN))
                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
-                                               wid_caps & AC_WCAP_STEREO,
-                                               1);
+                                               wid_caps, 1);
                         else
                                 print_amp_vals(buffer, codec, nid, HDA_INPUT,
-                                               wid_caps & AC_WCAP_STEREO,
-                                               conn_len);
+                                               wid_caps, conn_len);
                 }
                 if (wid_caps & AC_WCAP_OUT_AMP) {
                         snd_iprintf(buffer, "  Amp-Out caps: ");
@@ -771,11 +794,10 @@ static void print_codec_info(struct snd_info_entry *entry,
                         if (wid_type == AC_WID_PIN &&
                             codec->pin_amp_workaround)
                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
-                                               wid_caps & AC_WCAP_STEREO,
-                                               conn_len);
+                                               wid_caps, conn_len);
                         else
                                 print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
-                                               wid_caps & AC_WCAP_STEREO, 1);
+                                               wid_caps, 1);
                 }
 
                 switch (wid_type) {
diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index b67480f1b1aa..4373ada95648 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -317,7 +317,7 @@ static int adav80x_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
-        unsigned int deemph = ucontrol->value.enumerated.item[0];
+        unsigned int deemph = ucontrol->value.integer.value[0];
 
         if (deemph > 1)
                 return -EINVAL;
@@ -333,7 +333,7 @@ static int adav80x_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = adav80x->deemph;
+        ucontrol->value.integer.value[0] = adav80x->deemph;
         return 0;
 };
 
diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c
index 70861c7b1631..81b54a270bd8 100644
--- a/sound/soc/codecs/ak4641.c
+++ b/sound/soc/codecs/ak4641.c
@@ -76,7 +76,7 @@ static int ak4641_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
 
         if (deemph > 1)
                 return -EINVAL;
@@ -92,7 +92,7 @@ static int ak4641_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = ak4641->deemph;
+        ucontrol->value.integer.value[0] = ak4641->deemph;
         return 0;
 };
 
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
index 632e89f793a7..2a58b1dccd2f 100644
--- a/sound/soc/codecs/ak4671.c
+++ b/sound/soc/codecs/ak4671.c
@@ -343,25 +343,25 @@ static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
 };
 
 static const struct snd_soc_dapm_route ak4671_intercon[] = {
-        {"DAC Left", "NULL", "PMPLL"},
-        {"DAC Right", "NULL", "PMPLL"},
-        {"ADC Left", "NULL", "PMPLL"},
-        {"ADC Right", "NULL", "PMPLL"},
+        {"DAC Left", NULL, "PMPLL"},
+        {"DAC Right", NULL, "PMPLL"},
+        {"ADC Left", NULL, "PMPLL"},
+        {"ADC Right", NULL, "PMPLL"},
 
         /* Outputs */
-        {"LOUT1", "NULL", "LOUT1 Mixer"},
-        {"ROUT1", "NULL", "ROUT1 Mixer"},
-        {"LOUT2", "NULL", "LOUT2 Mix Amp"},
-        {"ROUT2", "NULL", "ROUT2 Mix Amp"},
-        {"LOUT3", "NULL", "LOUT3 Mixer"},
-        {"ROUT3", "NULL", "ROUT3 Mixer"},
+        {"LOUT1", NULL, "LOUT1 Mixer"},
+        {"ROUT1", NULL, "ROUT1 Mixer"},
+        {"LOUT2", NULL, "LOUT2 Mix Amp"},
+        {"ROUT2", NULL, "ROUT2 Mix Amp"},
+        {"LOUT3", NULL, "LOUT3 Mixer"},
+        {"ROUT3", NULL, "ROUT3 Mixer"},
 
         {"LOUT1 Mixer", "DACL", "DAC Left"},
         {"ROUT1 Mixer", "DACR", "DAC Right"},
         {"LOUT2 Mixer", "DACHL", "DAC Left"},
         {"ROUT2 Mixer", "DACHR", "DAC Right"},
-        {"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
-        {"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
+        {"LOUT2 Mix Amp", NULL, "LOUT2 Mixer"},
+        {"ROUT2 Mix Amp", NULL, "ROUT2 Mixer"},
         {"LOUT3 Mixer", "DACSL", "DAC Left"},
         {"ROUT3 Mixer", "DACSR", "DAC Right"},
 
@@ -381,18 +381,18 @@ static const struct snd_soc_dapm_route ak4671_intercon[] = {
         {"LIN2", NULL, "Mic Bias"},
         {"RIN2", NULL, "Mic Bias"},
 
-        {"ADC Left", "NULL", "LIN MUX"},
-        {"ADC Right", "NULL", "RIN MUX"},
+        {"ADC Left", NULL, "LIN MUX"},
+        {"ADC Right", NULL, "RIN MUX"},
 
         /* Analog Loops */
-        {"LIN1 Mixing Circuit", "NULL", "LIN1"},
-        {"RIN1 Mixing Circuit", "NULL", "RIN1"},
-        {"LIN2 Mixing Circuit", "NULL", "LIN2"},
-        {"RIN2 Mixing Circuit", "NULL", "RIN2"},
-        {"LIN3 Mixing Circuit", "NULL", "LIN3"},
-        {"RIN3 Mixing Circuit", "NULL", "RIN3"},
-        {"LIN4 Mixing Circuit", "NULL", "LIN4"},
-        {"RIN4 Mixing Circuit", "NULL", "RIN4"},
+        {"LIN1 Mixing Circuit", NULL, "LIN1"},
+        {"RIN1 Mixing Circuit", NULL, "RIN1"},
+        {"LIN2 Mixing Circuit", NULL, "LIN2"},
+        {"RIN2 Mixing Circuit", NULL, "RIN2"},
+        {"LIN3 Mixing Circuit", NULL, "LIN3"},
+        {"RIN3 Mixing Circuit", NULL, "RIN3"},
+        {"LIN4 Mixing Circuit", NULL, "LIN4"},
+        {"RIN4 Mixing Circuit", NULL, "RIN4"},
 
         {"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
         {"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index 79a4efcb894c..7d3a6accaf9a 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -286,7 +286,7 @@ static int cs4271_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = cs4271->deemph;
+        ucontrol->value.integer.value[0] = cs4271->deemph;
         return 0;
 }
 
@@ -296,7 +296,7 @@ static int cs4271_put_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
 
-        cs4271->deemph = ucontrol->value.enumerated.item[0];
+        cs4271->deemph = ucontrol->value.integer.value[0];
         return cs4271_set_deemph(codec);
 }
 
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index ffe96175a8a5..911c26c705fc 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -876,11 +876,11 @@ static const struct snd_soc_dapm_widget da732x_dapm_widgets[] = {
 
 static const struct snd_soc_dapm_route da732x_dapm_routes[] = {
         /* Inputs */
-        {"AUX1L PGA", "NULL", "AUX1L"},
-        {"AUX1R PGA", "NULL", "AUX1R"},
+        {"AUX1L PGA", NULL, "AUX1L"},
+        {"AUX1R PGA", NULL, "AUX1R"},
         {"MIC1 PGA", NULL, "MIC1"},
-        {"MIC2 PGA", "NULL", "MIC2"},
-        {"MIC3 PGA", "NULL", "MIC3"},
+        {"MIC2 PGA", NULL, "MIC2"},
+        {"MIC3 PGA", NULL, "MIC3"},
 
         /* Capture Path */
         {"ADC1 Left MUX", "MIC1", "MIC1 PGA"},
diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
index f27325155ace..c5f35a07e8e4 100644
--- a/sound/soc/codecs/es8328.c
+++ b/sound/soc/codecs/es8328.c
@@ -120,7 +120,7 @@ static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = es8328->deemph;
+        ucontrol->value.integer.value[0] = es8328->deemph;
         return 0;
 }
 
@@ -129,7 +129,7 @@ static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
         int ret;
 
         if (deemph > 1)
diff --git a/sound/soc/codecs/pcm1681.c b/sound/soc/codecs/pcm1681.c
index a722a023c262..477e13d30971 100644
--- a/sound/soc/codecs/pcm1681.c
+++ b/sound/soc/codecs/pcm1681.c
@@ -118,7 +118,7 @@ static int pcm1681_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = priv->deemph;
+        ucontrol->value.integer.value[0] = priv->deemph;
 
         return 0;
 }
@@ -129,7 +129,7 @@ static int pcm1681_put_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
 
-        priv->deemph = ucontrol->value.enumerated.item[0];
+        priv->deemph = ucontrol->value.integer.value[0];
 
         return pcm1681_set_deemph(codec);
 }
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index f374840a5a7c..9b541e52da8c 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -1198,7 +1198,7 @@ static struct dmi_system_id dmi_dell_dino[] = {
                 .ident = "Dell Dino",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-                        DMI_MATCH(DMI_BOARD_NAME, "0144P8")
+                        DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343")
                 }
         },
         { }
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index e182e6569bbd..3593a1496056 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1151,13 +1151,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
                 /* Enable VDDC charge pump */
                 ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP;
         } else if (vddio >= 3100 && vdda >= 3100) {
-                /*
-                 * if vddio and vddd > 3.1v,
-                 * charge pump should be clean before set ana_pwr
-                 */
-                snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
-                                SGTL5000_VDDC_CHRGPMP_POWERUP, 0);
-
+                ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP;
                 /* VDDC use VDDIO rail */
                 lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD;
                 lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO <<
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 47b257e41809..82095d6cd070 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -538,8 +538,8 @@ static const struct snd_soc_dapm_route sn95031_audio_map[] = {
         /* speaker map */
         { "IHFOUTL", NULL, "Speaker Rail"},
         { "IHFOUTR", NULL, "Speaker Rail"},
-        { "IHFOUTL", "NULL", "Speaker Left Playback"},
-        { "IHFOUTR", "NULL", "Speaker Right Playback"},
+        { "IHFOUTL", NULL, "Speaker Left Playback"},
+        { "IHFOUTR", NULL, "Speaker Right Playback"},
         { "Speaker Left Playback", NULL, "Speaker Left Filter"},
         { "Speaker Right Playback", NULL, "Speaker Right Filter"},
         { "Speaker Left Filter", NULL, "IHFDAC Left"},
diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 249ef5c4c762..32942bed34b1 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -281,7 +281,7 @@ static int tas5086_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = priv->deemph;
+        ucontrol->value.integer.value[0] = priv->deemph;
 
         return 0;
 }
@@ -292,7 +292,7 @@ static int tas5086_put_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
 
-        priv->deemph = ucontrol->value.enumerated.item[0];
+        priv->deemph = ucontrol->value.integer.value[0];
 
         return tas5086_set_deemph(codec);
 }
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 8d9de49a5052..21d5402e343f 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -610,7 +610,7 @@ static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
 
-        ucontrol->value.enumerated.item[0] = wm2000->anc_active;
+        ucontrol->value.integer.value[0] = wm2000->anc_active;
 
         return 0;
 }
@@ -620,7 +620,7 @@ static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
-        int anc_active = ucontrol->value.enumerated.item[0];
+        int anc_active = ucontrol->value.integer.value[0];
         int ret;
 
         if (anc_active > 1)
@@ -643,7 +643,7 @@ static int wm2000_speaker_get(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
 
-        ucontrol->value.enumerated.item[0] = wm2000->spk_ena;
+        ucontrol->value.integer.value[0] = wm2000->spk_ena;
 
         return 0;
 }
@@ -653,7 +653,7 @@ static int wm2000_speaker_put(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
-        int val = ucontrol->value.enumerated.item[0];
+        int val = ucontrol->value.integer.value[0];
         int ret;
 
         if (val > 1)
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 098c143f44d6..c6d10533e2bd 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -125,7 +125,7 @@ static int wm8731_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = wm8731->deemph;
+        ucontrol->value.integer.value[0] = wm8731->deemph;
 
         return 0;
 }
@@ -135,7 +135,7 @@ static int wm8731_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
         int ret = 0;
 
         if (deemph > 1)
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index dde462c082be..04b04f8e147c 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -442,7 +442,7 @@ static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = wm8903->deemph;
+        ucontrol->value.integer.value[0] = wm8903->deemph;
 
         return 0;
 }
@@ -452,7 +452,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
         int ret = 0;
 
         if (deemph > 1)
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index d3b3f57668cc..215e93c1ddf0 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -525,7 +525,7 @@ static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = wm8904->deemph;
+        ucontrol->value.integer.value[0] = wm8904->deemph;
         return 0;
 }
 
@@ -534,7 +534,7 @@ static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
 
         if (deemph > 1)
                 return -EINVAL;
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 1ab2d462afad..00bec915d652 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -393,7 +393,7 @@ static int wm8955_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = wm8955->deemph;
+        ucontrol->value.integer.value[0] = wm8955->deemph;
         return 0;
 }
 
@@ -402,7 +402,7 @@ static int wm8955_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
 
         if (deemph > 1)
                 return -EINVAL;
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index cf8fecf97f2c..3035d9856415 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -184,7 +184,7 @@ static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 
-        ucontrol->value.enumerated.item[0] = wm8960->deemph;
+        ucontrol->value.integer.value[0] = wm8960->deemph;
         return 0;
 }
 
@@ -193,7 +193,7 @@ static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
 {
         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-        int deemph = ucontrol->value.enumerated.item[0];
+        int deemph = ucontrol->value.integer.value[0];
 
         if (deemph > 1)
                 return -EINVAL;
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 9517571e820d..98c9525bd751 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -180,7 +180,7 @@ static int wm9712_hp_mixer_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
-        unsigned int val = ucontrol->value.enumerated.item[0];
+        unsigned int val = ucontrol->value.integer.value[0];
         struct soc_mixer_control *mc =
                 (struct soc_mixer_control *)kcontrol->private_value;
         unsigned int mixer, mask, shift, old;
@@ -193,7 +193,7 @@ static int wm9712_hp_mixer_put(struct snd_kcontrol *kcontrol,
 
         mutex_lock(&wm9712->lock);
         old = wm9712->hp_mixer[mixer];
-        if (ucontrol->value.enumerated.item[0])
+        if (ucontrol->value.integer.value[0])
                 wm9712->hp_mixer[mixer] |= mask;
         else
                 wm9712->hp_mixer[mixer] &= ~mask;
@@ -231,7 +231,7 @@ static int wm9712_hp_mixer_get(struct snd_kcontrol *kcontrol,
         mixer = mc->shift >> 8;
         shift = mc->shift & 0xff;
 
-        ucontrol->value.enumerated.item[0] =
+        ucontrol->value.integer.value[0] =
                 (wm9712->hp_mixer[mixer] >> shift) & 1;
 
         return 0;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 68222917b396..79552953e1bd 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -255,7 +255,7 @@ static int wm9713_hp_mixer_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
         struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
-        unsigned int val = ucontrol->value.enumerated.item[0];
+        unsigned int val = ucontrol->value.integer.value[0];
         struct soc_mixer_control *mc =
                 (struct soc_mixer_control *)kcontrol->private_value;
         unsigned int mixer, mask, shift, old;
@@ -268,7 +268,7 @@ static int wm9713_hp_mixer_put(struct snd_kcontrol *kcontrol,
 
         mutex_lock(&wm9713->lock);
         old = wm9713->hp_mixer[mixer];
-        if (ucontrol->value.enumerated.item[0])
+        if (ucontrol->value.integer.value[0])
                 wm9713->hp_mixer[mixer] |= mask;
         else
                 wm9713->hp_mixer[mixer] &= ~mask;
@@ -306,7 +306,7 @@ static int wm9713_hp_mixer_get(struct snd_kcontrol *kcontrol,
         mixer = mc->shift >> 8;
         shift = mc->shift & 0xff;
 
-        ucontrol->value.enumerated.item[0] =
+        ucontrol->value.integer.value[0] =
                 (wm9713->hp_mixer[mixer] >> shift) & 1;
 
         return 0;
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index b9fabbf69db6..6b0c8f717ec2 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -603,7 +603,7 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
         factor = (div2 + 1) * (7 * psr + 1) * 2;
 
         for (i = 0; i < 255; i++) {
-                tmprate = freq * factor * (i + 2);
+                tmprate = freq * factor * (i + 1);
 
                 if (baudclk_is_used)
                         clkrate = clk_get_rate(ssi_private->baudclk);
@@ -1227,7 +1227,7 @@ static int fsl_ssi_imx_probe(struct platform_device *pdev,
         ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0;
         ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0;
 
-        ret = !of_property_read_u32_array(np, "dmas", dmas, 4);
+        ret = of_property_read_u32_array(np, "dmas", dmas, 4);
         if (ssi_private->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL) {
                 ssi_private->use_dual_fifo = true;
                 /* When using dual fifo mode, we need to keep watermark
diff --git a/sound/soc/intel/sst-haswell-dsp.c b/sound/soc/intel/sst-haswell-dsp.c
index c42ffae5fe9f..402b728c0a06 100644
--- a/sound/soc/intel/sst-haswell-dsp.c
+++ b/sound/soc/intel/sst-haswell-dsp.c
@@ -207,9 +207,6 @@ static int hsw_parse_fw_image(struct sst_fw *sst_fw)
                 module = (void *)module + sizeof(*module) + module->mod_size;
         }
 
-        /* allocate scratch mem regions */
-        sst_block_alloc_scratch(dsp);
-
         return 0;
 }
 
diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c
index 394af5684c05..863a9ca34b8e 100644
--- a/sound/soc/intel/sst-haswell-ipc.c
+++ b/sound/soc/intel/sst-haswell-ipc.c
@@ -1732,6 +1732,7 @@ static void sst_hsw_drop_all(struct sst_hsw *hsw)
 int sst_hsw_dsp_load(struct sst_hsw *hsw)
 {
         struct sst_dsp *dsp = hsw->dsp;
+        struct sst_fw *sst_fw, *t;
         int ret;
 
         dev_dbg(hsw->dev, "loading audio DSP....");
@@ -1748,12 +1749,17 @@ int sst_hsw_dsp_load(struct sst_hsw *hsw)
                 return ret;
         }
 
-        ret = sst_fw_reload(hsw->sst_fw);
-        if (ret < 0) {
-                dev_err(hsw->dev, "error: SST FW reload failed\n");
-                sst_dsp_dma_put_channel(dsp);
-                return -ENOMEM;
+        list_for_each_entry_safe_reverse(sst_fw, t, &dsp->fw_list, list) {
+                ret = sst_fw_reload(sst_fw);
+                if (ret < 0) {
+                        dev_err(hsw->dev, "error: SST FW reload failed\n");
+                        sst_dsp_dma_put_channel(dsp);
+                        return -ENOMEM;
+                }
         }
+        ret = sst_block_alloc_scratch(hsw->dsp);
+        if (ret < 0)
+                return -EINVAL;
 
         sst_dsp_dma_put_channel(dsp);
         return 0;
@@ -1809,12 +1815,17 @@ int sst_hsw_dsp_runtime_suspend(struct sst_hsw *hsw)
 
 int sst_hsw_dsp_runtime_sleep(struct sst_hsw *hsw)
 {
-        sst_fw_unload(hsw->sst_fw);
-        sst_block_free_scratch(hsw->dsp);
+        struct sst_fw *sst_fw, *t;
+        struct sst_dsp *dsp = hsw->dsp;
+
+        list_for_each_entry_safe(sst_fw, t, &dsp->fw_list, list) {
+                sst_fw_unload(sst_fw);
+        }
+        sst_block_free_scratch(dsp);
 
         hsw->boot_complete = false;
 
-        sst_dsp_sleep(hsw->dsp);
+        sst_dsp_sleep(dsp);
 
         return 0;
 }
@@ -1943,6 +1954,11 @@ int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)
                 goto fw_err;
         }
 
+        /* allocate scratch mem regions */
+        ret = sst_block_alloc_scratch(hsw->dsp);
+        if (ret < 0)
+                goto boot_err;
+
         /* wait for DSP boot completion */
         sst_dsp_boot(hsw->dsp);
         ret = wait_event_timeout(hsw->boot_wait, hsw->boot_complete,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 30579ca5bacb..e5c990889dcc 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -347,6 +347,8 @@ static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
         if (!buf)
                 return -ENOMEM;
 
+        mutex_lock(&client_mutex);
+
         list_for_each_entry(codec, &codec_list, list) {
                 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
                                codec->component.name);
@@ -358,6 +360,8 @@ static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
                 }
         }
 
+        mutex_unlock(&client_mutex);
+
         if (ret >= 0)
                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
@@ -382,6 +386,8 @@ static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
         if (!buf)
                 return -ENOMEM;
 
+        mutex_lock(&client_mutex);
+
         list_for_each_entry(component, &component_list, list) {
                 list_for_each_entry(dai, &component->dai_list, list) {
                         len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
@@ -395,6 +401,8 @@ static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
                 }
         }
 
+        mutex_unlock(&client_mutex);
+
         ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
         kfree(buf);
@@ -418,6 +426,8 @@ static ssize_t platform_list_read_file(struct file *file,
         if (!buf)
                 return -ENOMEM;
 
+        mutex_lock(&client_mutex);
+
         list_for_each_entry(platform, &platform_list, list) {
                 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
                                platform->component.name);
@@ -429,6 +439,8 @@ static ssize_t platform_list_read_file(struct file *file,
                 }
         }
 
+        mutex_unlock(&client_mutex);
+
         ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
         kfree(buf);
@@ -836,6 +848,8 @@ static struct snd_soc_component *soc_find_component(
 {
         struct snd_soc_component *component;
 
+        lockdep_assert_held(&client_mutex);
+
         list_for_each_entry(component, &component_list, list) {
                 if (of_node) {
                         if (component->dev->of_node == of_node)
@@ -854,6 +868,8 @@ static struct snd_soc_dai *snd_soc_find_dai(
         struct snd_soc_component *component;
         struct snd_soc_dai *dai;
 
+        lockdep_assert_held(&client_mutex);
+
         /* Find CPU DAI from registered DAIs*/
         list_for_each_entry(component, &component_list, list) {
                 if (dlc->of_node && component->dev->of_node != dlc->of_node)
@@ -1508,6 +1524,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
         struct snd_soc_codec *codec;
         int ret, i, order;
 
+        mutex_lock(&client_mutex);
         mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
 
         /* bind DAIs */
@@ -1662,6 +1679,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
         card->instantiated = 1;
         snd_soc_dapm_sync(&card->dapm);
         mutex_unlock(&card->mutex);
+        mutex_unlock(&client_mutex);
 
         return 0;
 
@@ -1680,6 +1698,7 @@ card_probe_error:
 
 base_error:
         mutex_unlock(&card->mutex);
+        mutex_unlock(&client_mutex);
 
         return ret;
 }
@@ -2713,13 +2732,6 @@ static void snd_soc_component_del_unlocked(struct snd_soc_component *component)
         list_del(&component->list);
 }
 
-static void snd_soc_component_del(struct snd_soc_component *component)
-{
-        mutex_lock(&client_mutex);
-        snd_soc_component_del_unlocked(component);
-        mutex_unlock(&client_mutex);
-}
-
 int snd_soc_register_component(struct device *dev,
                                const struct snd_soc_component_driver *cmpnt_drv,
                                struct snd_soc_dai_driver *dai_drv,
@@ -2767,14 +2779,17 @@ void snd_soc_unregister_component(struct device *dev)
 {
         struct snd_soc_component *cmpnt;
 
+        mutex_lock(&client_mutex);
         list_for_each_entry(cmpnt, &component_list, list) {
                 if (dev == cmpnt->dev && cmpnt->registered_as_component)
                         goto found;
         }
+        mutex_unlock(&client_mutex);
         return;
 
 found:
-        snd_soc_component_del(cmpnt);
+        snd_soc_component_del_unlocked(cmpnt);
+        mutex_unlock(&client_mutex);
         snd_soc_component_cleanup(cmpnt);
         kfree(cmpnt);
 }
@@ -2882,10 +2897,14 @@ struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
 {
         struct snd_soc_platform *platform;
 
+        mutex_lock(&client_mutex);
         list_for_each_entry(platform, &platform_list, list) {
-                if (dev == platform->dev)
+                if (dev == platform->dev) {
+                        mutex_unlock(&client_mutex);
                         return platform;
+                }
         }
+        mutex_unlock(&client_mutex);
 
         return NULL;
 }
@@ -3090,15 +3109,15 @@ void snd_soc_unregister_codec(struct device *dev)
 {
         struct snd_soc_codec *codec;
 
+        mutex_lock(&client_mutex);
         list_for_each_entry(codec, &codec_list, list) {
                 if (dev == codec->dev)
                         goto found;
         }
+        mutex_unlock(&client_mutex);
         return;
 
 found:
-
-        mutex_lock(&client_mutex);
         list_del(&codec->list);
         snd_soc_component_del_unlocked(&codec->component);
         mutex_unlock(&client_mutex);
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 61bf9128e1f2..9d9db3b296dd 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -30,6 +30,8 @@ static int disasm_line__parse(char *line, char **namep, char **rawp);
 
 static void ins__delete(struct ins_operands *ops)
 {
+        if (ops == NULL)
+                return;
         zfree(&ops->source.raw);
         zfree(&ops->source.name);
         zfree(&ops->target.raw);
diff --git a/virt/kvm/arm/vgic-v2.c b/virt/kvm/arm/vgic-v2.c
index a0a7b5d1a070..f9b9c7c51372 100644
--- a/virt/kvm/arm/vgic-v2.c
+++ b/virt/kvm/arm/vgic-v2.c
@@ -72,6 +72,8 @@ static void vgic_v2_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr,
 {
         if (!(lr_desc.state & LR_STATE_MASK))
                 vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr |= (1ULL << lr);
+        else
+                vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr &= ~(1ULL << lr);
 }
 
 static u64 vgic_v2_get_elrsr(const struct kvm_vcpu *vcpu)
@@ -84,6 +86,11 @@ static u64 vgic_v2_get_eisr(const struct kvm_vcpu *vcpu)
         return vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr;
 }
 
+static void vgic_v2_clear_eisr(struct kvm_vcpu *vcpu)
+{
+        vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr = 0;
+}
+
 static u32 vgic_v2_get_interrupt_status(const struct kvm_vcpu *vcpu)
 {
         u32 misr = vcpu->arch.vgic_cpu.vgic_v2.vgic_misr;
@@ -148,6 +155,7 @@ static const struct vgic_ops vgic_v2_ops = {
         .sync_lr_elrsr          = vgic_v2_sync_lr_elrsr,
         .get_elrsr              = vgic_v2_get_elrsr,
         .get_eisr               = vgic_v2_get_eisr,
+        .clear_eisr             = vgic_v2_clear_eisr,
         .get_interrupt_status   = vgic_v2_get_interrupt_status,
         .enable_underflow       = vgic_v2_enable_underflow,
         .disable_underflow      = vgic_v2_disable_underflow,
diff --git a/virt/kvm/arm/vgic-v3.c b/virt/kvm/arm/vgic-v3.c
index 3a62d8a9a2c6..dff06021e748 100644
--- a/virt/kvm/arm/vgic-v3.c
+++ b/virt/kvm/arm/vgic-v3.c
@@ -104,6 +104,8 @@ static void vgic_v3_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr,
 {
         if (!(lr_desc.state & LR_STATE_MASK))
                 vcpu->arch.vgic_cpu.vgic_v3.vgic_elrsr |= (1U << lr);
+        else
+                vcpu->arch.vgic_cpu.vgic_v3.vgic_elrsr &= ~(1U << lr);
 }
 
 static u64 vgic_v3_get_elrsr(const struct kvm_vcpu *vcpu)
@@ -116,6 +118,11 @@ static u64 vgic_v3_get_eisr(const struct kvm_vcpu *vcpu)
         return vcpu->arch.vgic_cpu.vgic_v3.vgic_eisr;
 }
 
+static void vgic_v3_clear_eisr(struct kvm_vcpu *vcpu)
+{
+        vcpu->arch.vgic_cpu.vgic_v3.vgic_eisr = 0;
+}
+
 static u32 vgic_v3_get_interrupt_status(const struct kvm_vcpu *vcpu)
 {
         u32 misr = vcpu->arch.vgic_cpu.vgic_v3.vgic_misr;
@@ -192,6 +199,7 @@ static const struct vgic_ops vgic_v3_ops = {
         .sync_lr_elrsr          = vgic_v3_sync_lr_elrsr,
         .get_elrsr              = vgic_v3_get_elrsr,
         .get_eisr               = vgic_v3_get_eisr,
+        .clear_eisr             = vgic_v3_clear_eisr,
         .get_interrupt_status   = vgic_v3_get_interrupt_status,
         .enable_underflow       = vgic_v3_enable_underflow,
         .disable_underflow      = vgic_v3_disable_underflow,
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 0cc6ab6005a0..c9f60f524588 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -883,6 +883,11 @@ static inline u64 vgic_get_eisr(struct kvm_vcpu *vcpu)
         return vgic_ops->get_eisr(vcpu);
 }
 
+static inline void vgic_clear_eisr(struct kvm_vcpu *vcpu)
+{
+        vgic_ops->clear_eisr(vcpu);
+}
+
 static inline u32 vgic_get_interrupt_status(struct kvm_vcpu *vcpu)
 {
         return vgic_ops->get_interrupt_status(vcpu);
@@ -922,6 +927,7 @@ static void vgic_retire_lr(int lr_nr, int irq, struct kvm_vcpu *vcpu)
         vgic_set_lr(vcpu, lr_nr, vlr);
         clear_bit(lr_nr, vgic_cpu->lr_used);
         vgic_cpu->vgic_irq_lr_map[irq] = LR_EMPTY;
+        vgic_sync_lr_elrsr(vcpu, lr_nr, vlr);
 }
 
 /*
@@ -978,6 +984,7 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq)
                         BUG_ON(!test_bit(lr, vgic_cpu->lr_used));
                         vlr.state |= LR_STATE_PENDING;
                         vgic_set_lr(vcpu, lr, vlr);
+                        vgic_sync_lr_elrsr(vcpu, lr, vlr);
                         return true;
                 }
         }
@@ -999,6 +1006,7 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq)
                 vlr.state |= LR_EOI_INT;
 
         vgic_set_lr(vcpu, lr, vlr);
+        vgic_sync_lr_elrsr(vcpu, lr, vlr);
 
         return true;
 }
@@ -1136,6 +1144,14 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
         if (status & INT_STATUS_UNDERFLOW)
                 vgic_disable_underflow(vcpu);
 
+        /*
+         * In the next iterations of the vcpu loop, if we sync the vgic state
+         * after flushing it, but before entering the guest (this happens for
+         * pending signals and vmid rollovers), then make sure we don't pick
+         * up any old maintenance interrupts here.
+         */
+        vgic_clear_eisr(vcpu);
+
         return level_pending;
 }
 
@@ -1583,8 +1599,10 @@ int kvm_vgic_create(struct kvm *kvm, u32 type)
          * emulation. So check this here again. KVM_CREATE_DEVICE does
          * the proper checks already.
          */
-        if (type == KVM_DEV_TYPE_ARM_VGIC_V2 && !vgic->can_emulate_gicv2)
-                return -ENODEV;
+        if (type == KVM_DEV_TYPE_ARM_VGIC_V2 && !vgic->can_emulate_gicv2) {
+                ret = -ENODEV;
+                goto out;
+        }
 
         /*
          * Any time a vcpu is run, vcpu_load is called which tries to grab the
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a1093700f3a4..a2214d9609bd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2492,6 +2492,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
         case KVM_CAP_SIGNAL_MSI:
 #endif
 #ifdef CONFIG_HAVE_KVM_IRQFD
+        case KVM_CAP_IRQFD:
         case KVM_CAP_IRQFD_RESAMPLE:
 #endif
         case KVM_CAP_CHECK_EXTENSION_VM: