diff --git a/Makefile b/Makefile
index aef09ca7a924..b26481fef3f0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 125
+SUBLEVEL = 126
 EXTRAVERSION =
 NAME = Roaring Lionus
 
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 4f95577b0180..6e0d549eb3bb 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -526,24 +526,19 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const 
char __user *, path,
 SYSCALL_DEFINE1(osf_utsname, char __user *, name)
 {
        int error;
+       char tmp[5 * 32];
 
        down_read(&uts_sem);
-       error = -EFAULT;
-       if (copy_to_user(name + 0, utsname()->sysname, 32))
-               goto out;
-       if (copy_to_user(name + 32, utsname()->nodename, 32))
-               goto out;
-       if (copy_to_user(name + 64, utsname()->release, 32))
-               goto out;
-       if (copy_to_user(name + 96, utsname()->version, 32))
-               goto out;
-       if (copy_to_user(name + 128, utsname()->machine, 32))
-               goto out;
+       memcpy(tmp + 0 * 32, utsname()->sysname, 32);
+       memcpy(tmp + 1 * 32, utsname()->nodename, 32);
+       memcpy(tmp + 2 * 32, utsname()->release, 32);
+       memcpy(tmp + 3 * 32, utsname()->version, 32);
+       memcpy(tmp + 4 * 32, utsname()->machine, 32);
+       up_read(&uts_sem);
 
-       error = 0;
- out:
-       up_read(&uts_sem);      
-       return error;
+       if (copy_to_user(name, tmp, sizeof(tmp)))
+               return -EFAULT;
+       return 0;
 }
 
 SYSCALL_DEFINE0(getpagesize)
@@ -561,24 +556,22 @@ SYSCALL_DEFINE0(getdtablesize)
  */
 SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
 {
-       unsigned len;
-       int i;
+       int len, err = 0;
+       char *kname;
+       char tmp[32];
 
-       if (!access_ok(VERIFY_WRITE, name, namelen))
-               return -EFAULT;
-
-       len = namelen;
-       if (len > 32)
-               len = 32;
+       if (namelen < 0 || namelen > 32)
+               namelen = 32;
 
        down_read(&uts_sem);
-       for (i = 0; i < len; ++i) {
-               __put_user(utsname()->domainname[i], name + i);
-               if (utsname()->domainname[i] == '\0')
-                       break;
-       }
+       kname = utsname()->domainname;
+       len = strnlen(kname, namelen);
+       len = min(len + 1, namelen);
+       memcpy(tmp, kname, len);
        up_read(&uts_sem);
 
+       if (copy_to_user(name, tmp, len))
+               return -EFAULT;
        return 0;
 }
 
@@ -741,13 +734,14 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, 
buf, long, count)
        };
        unsigned long offset;
        const char *res;
-       long len, err = -EINVAL;
+       long len;
+       char tmp[__NEW_UTS_LEN + 1];
 
        offset = command-1;
        if (offset >= ARRAY_SIZE(sysinfo_table)) {
                /* Digital UNIX has a few unpublished interfaces here */
                printk("sysinfo(%d)", command);
-               goto out;
+               return -EINVAL;
        }
 
        down_read(&uts_sem);
@@ -755,13 +749,11 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, 
buf, long, count)
        len = strlen(res)+1;
        if ((unsigned long)len > (unsigned long)count)
                len = count;
-       if (copy_to_user(buf, res, len))
-               err = -EFAULT;
-       else
-               err = 0;
+       memcpy(tmp, res, len);
        up_read(&uts_sem);
- out:
-       return err;
+       if (copy_to_user(buf, tmp, len))
+               return -EFAULT;
+       return 0;
 }
 
 SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi 
b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index f11012bb58cc..cfcf5dcb51a8 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -205,6 +205,7 @@
                        #address-cells = <1>;
                        #size-cells = <0>;
                        reg = <0x70>;
+                       reset-gpio = <&gpio TEGRA_GPIO(BB, 0) GPIO_ACTIVE_LOW>;
                };
        };
 
diff --git a/arch/powerpc/include/asm/fadump.h 
b/arch/powerpc/include/asm/fadump.h
index 0031806475f0..f93238ad06bd 100644
--- a/arch/powerpc/include/asm/fadump.h
+++ b/arch/powerpc/include/asm/fadump.h
@@ -190,9 +190,6 @@ struct fadump_crash_info_header {
        struct cpumask  online_mask;
 };
 
-/* Crash memory ranges */
-#define INIT_CRASHMEM_RANGES   (INIT_MEMBLOCK_REGIONS + 2)
-
 struct fad_crash_memory_ranges {
        unsigned long long      base;
        unsigned long long      size;
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 93a6eeba3ace..e3acf5c3480e 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -35,6 +35,7 @@
 #include <linux/crash_dump.h>
 #include <linux/kobject.h>
 #include <linux/sysfs.h>
+#include <linux/slab.h>
 
 #include <asm/page.h>
 #include <asm/prom.h>
@@ -48,8 +49,10 @@ static struct fadump_mem_struct fdm;
 static const struct fadump_mem_struct *fdm_active;
 
 static DEFINE_MUTEX(fadump_mutex);
-struct fad_crash_memory_ranges crash_memory_ranges[INIT_CRASHMEM_RANGES];
+struct fad_crash_memory_ranges *crash_memory_ranges;
+int crash_memory_ranges_size;
 int crash_mem_ranges;
+int max_crash_mem_ranges;
 
 /* Scan the Firmware Assisted dump configuration details. */
 int __init early_init_dt_scan_fw_dump(unsigned long node,
@@ -731,38 +734,88 @@ static int __init process_fadump(const struct 
fadump_mem_struct *fdm_active)
        return 0;
 }
 
-static inline void fadump_add_crash_memory(unsigned long long base,
-                                       unsigned long long end)
+static void free_crash_memory_ranges(void)
+{
+       kfree(crash_memory_ranges);
+       crash_memory_ranges = NULL;
+       crash_memory_ranges_size = 0;
+       max_crash_mem_ranges = 0;
+}
+
+/*
+ * Allocate or reallocate crash memory ranges array in incremental units
+ * of PAGE_SIZE.
+ */
+static int allocate_crash_memory_ranges(void)
+{
+       struct fad_crash_memory_ranges *new_array;
+       u64 new_size;
+
+       new_size = crash_memory_ranges_size + PAGE_SIZE;
+       pr_debug("Allocating %llu bytes of memory for crash memory ranges\n",
+                new_size);
+
+       new_array = krealloc(crash_memory_ranges, new_size, GFP_KERNEL);
+       if (new_array == NULL) {
+               pr_err("Insufficient memory for setting up crash memory 
ranges\n");
+               free_crash_memory_ranges();
+               return -ENOMEM;
+       }
+
+       crash_memory_ranges = new_array;
+       crash_memory_ranges_size = new_size;
+       max_crash_mem_ranges = (new_size /
+                               sizeof(struct fad_crash_memory_ranges));
+       return 0;
+}
+
+static inline int fadump_add_crash_memory(unsigned long long base,
+                                         unsigned long long end)
 {
        if (base == end)
-               return;
+               return 0;
+
+       if (crash_mem_ranges == max_crash_mem_ranges) {
+               int ret;
+
+               ret = allocate_crash_memory_ranges();
+               if (ret)
+                       return ret;
+       }
 
        pr_debug("crash_memory_range[%d] [%#016llx-%#016llx], %#llx bytes\n",
                crash_mem_ranges, base, end - 1, (end - base));
        crash_memory_ranges[crash_mem_ranges].base = base;
        crash_memory_ranges[crash_mem_ranges].size = end - base;
        crash_mem_ranges++;
+       return 0;
 }
 
-static void fadump_exclude_reserved_area(unsigned long long start,
+static int fadump_exclude_reserved_area(unsigned long long start,
                                        unsigned long long end)
 {
        unsigned long long ra_start, ra_end;
+       int ret = 0;
 
        ra_start = fw_dump.reserve_dump_area_start;
        ra_end = ra_start + fw_dump.reserve_dump_area_size;
 
        if ((ra_start < end) && (ra_end > start)) {
                if ((start < ra_start) && (end > ra_end)) {
-                       fadump_add_crash_memory(start, ra_start);
-                       fadump_add_crash_memory(ra_end, end);
+                       ret = fadump_add_crash_memory(start, ra_start);
+                       if (ret)
+                               return ret;
+
+                       ret = fadump_add_crash_memory(ra_end, end);
                } else if (start < ra_start) {
-                       fadump_add_crash_memory(start, ra_start);
+                       ret = fadump_add_crash_memory(start, ra_start);
                } else if (ra_end < end) {
-                       fadump_add_crash_memory(ra_end, end);
+                       ret = fadump_add_crash_memory(ra_end, end);
                }
        } else
-               fadump_add_crash_memory(start, end);
+               ret = fadump_add_crash_memory(start, end);
+
+       return ret;
 }
 
 static int fadump_init_elfcore_header(char *bufp)
@@ -802,10 +855,11 @@ static int fadump_init_elfcore_header(char *bufp)
  * Traverse through memblock structure and setup crash memory ranges. These
  * ranges will be used create PT_LOAD program headers in elfcore header.
  */
-static void fadump_setup_crash_memory_ranges(void)
+static int fadump_setup_crash_memory_ranges(void)
 {
        struct memblock_region *reg;
        unsigned long long start, end;
+       int ret;
 
        pr_debug("Setup crash memory ranges.\n");
        crash_mem_ranges = 0;
@@ -816,7 +870,9 @@ static void fadump_setup_crash_memory_ranges(void)
         * specified during fadump registration. We need to create a separate
         * program header for this chunk with the correct offset.
         */
-       fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size);
+       ret = fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size);
+       if (ret)
+               return ret;
 
        for_each_memblock(memory, reg) {
                start = (unsigned long long)reg->base;
@@ -825,8 +881,12 @@ static void fadump_setup_crash_memory_ranges(void)
                        start = fw_dump.boot_memory_size;
 
                /* add this range excluding the reserved dump area. */
-               fadump_exclude_reserved_area(start, end);
+               ret = fadump_exclude_reserved_area(start, end);
+               if (ret)
+                       return ret;
        }
+
+       return 0;
 }
 
 /*
@@ -950,6 +1010,7 @@ static void register_fadump(void)
 {
        unsigned long addr;
        void *vaddr;
+       int ret;
 
        /*
         * If no memory is reserved then we can not register for firmware-
@@ -958,7 +1019,9 @@ static void register_fadump(void)
        if (!fw_dump.reserve_dump_area_size)
                return;
 
-       fadump_setup_crash_memory_ranges();
+       ret = fadump_setup_crash_memory_ranges();
+       if (ret)
+               return ret;
 
        addr = be64_to_cpu(fdm.rmr_region.destination_address) + 
be64_to_cpu(fdm.rmr_region.source_len);
        /* Initialize fadump crash info header. */
@@ -1036,6 +1099,7 @@ void fadump_cleanup(void)
        } else if (fw_dump.dump_registered) {
                /* Un-register Firmware-assisted dump if it was registered. */
                fadump_unregister_dump(&fdm);
+               free_crash_memory_ranges();
        }
 }
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c 
b/arch/powerpc/platforms/powernv/pci-ioda.c
index 9ed90c502005..f52cc6fd4290 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3124,12 +3124,49 @@ static void pnv_pci_ioda_create_dbgfs(void)
 #endif /* CONFIG_DEBUG_FS */
 }
 
+static void pnv_pci_enable_bridge(struct pci_bus *bus)
+{
+       struct pci_dev *dev = bus->self;
+       struct pci_bus *child;
+
+       /* Empty bus ? bail */
+       if (list_empty(&bus->devices))
+               return;
+
+       /*
+        * If there's a bridge associated with that bus enable it. This works
+        * around races in the generic code if the enabling is done during
+        * parallel probing. This can be removed once those races have been
+        * fixed.
+        */
+       if (dev) {
+               int rc = pci_enable_device(dev);
+               if (rc)
+                       pci_err(dev, "Error enabling bridge (%d)\n", rc);
+               pci_set_master(dev);
+       }
+
+       /* Perform the same to child busses */
+       list_for_each_entry(child, &bus->children, node)
+               pnv_pci_enable_bridge(child);
+}
+
+static void pnv_pci_enable_bridges(void)
+{
+       struct pci_controller *hose;
+
+       list_for_each_entry(hose, &hose_list, list_node)
+               pnv_pci_enable_bridge(hose->bus);
+}
+
 static void pnv_pci_ioda_fixup(void)
 {
        pnv_pci_ioda_setup_PEs();
        pnv_pci_ioda_setup_iommu_api();
        pnv_pci_ioda_create_dbgfs();
 
+       pnv_pci_enable_bridges();
+
 #ifdef CONFIG_EEH
        eeh_init();
        eeh_addr_cache_build();
diff --git a/arch/powerpc/platforms/pseries/ras.c 
b/arch/powerpc/platforms/pseries/ras.c
index 904a677208d1..34989ce43147 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -346,7 +346,7 @@ static struct rtas_error_log *fwnmi_get_errinfo(struct 
pt_regs *regs)
        }
 
        savep = __va(regs->gpr[3]);
-       regs->gpr[3] = savep[0];        /* restore original r3 */
+       regs->gpr[3] = be64_to_cpu(savep[0]);   /* restore original r3 */
 
        /* If it isn't an extended log we can use the per cpu 64bit buffer */
        h = (struct rtas_error_log *)&savep[1];
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 646988d4c1a3..740f43b9b541 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -201,23 +201,27 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig,
 
 asmlinkage long sys_getdomainname(char __user *name, int len)
 {
-       int nlen, err;
-       
+       int nlen, err;
+       char tmp[__NEW_UTS_LEN + 1];
+
        if (len < 0)
                return -EINVAL;
 
-       down_read(&uts_sem);
-       
+       down_read(&uts_sem);
+
        nlen = strlen(utsname()->domainname) + 1;
        err = -EINVAL;
        if (nlen > len)
-               goto out;
+               goto out_unlock;
+       memcpy(tmp, utsname()->domainname, nlen);
 
-       err = -EFAULT;
-       if (!copy_to_user(name, utsname()->domainname, nlen))
-               err = 0;
+       up_read(&uts_sem);
 
-out:
+       if (copy_to_user(name, tmp, nlen))
+               return -EFAULT;
+       return 0;
+
+out_unlock:
        up_read(&uts_sem);
        return err;
 }
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 02e05e221b94..ebecbc927460 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -524,23 +524,27 @@ extern void check_pending(int signum);
 
 SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
 {
-        int nlen, err;
+       int nlen, err;
+       char tmp[__NEW_UTS_LEN + 1];
 
        if (len < 0)
                return -EINVAL;
 
-       down_read(&uts_sem);
-       
+       down_read(&uts_sem);
+
        nlen = strlen(utsname()->domainname) + 1;
        err = -EINVAL;
        if (nlen > len)
-               goto out;
+               goto out_unlock;
+       memcpy(tmp, utsname()->domainname, nlen);
+
+       up_read(&uts_sem);
 
-       err = -EFAULT;
-       if (!copy_to_user(name, utsname()->domainname, nlen))
-               err = 0;
+       if (copy_to_user(name, tmp, nlen))
+               return -EFAULT;
+       return 0;
 
-out:
+out_unlock:
        up_read(&uts_sem);
        return err;
 }
diff --git a/arch/x86/kernel/kexec-bzimage64.c 
b/arch/x86/kernel/kexec-bzimage64.c
index 3407b148c240..490f9be3fda2 100644
--- a/arch/x86/kernel/kexec-bzimage64.c
+++ b/arch/x86/kernel/kexec-bzimage64.c
@@ -529,7 +529,7 @@ static int bzImage64_cleanup(void *loader_data)
 static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
 {
        return verify_pefile_signature(kernel, kernel_len,
-                                      NULL,
+                                      VERIFY_USE_SECONDARY_KEYRING,
                                       VERIFYING_KEXEC_PE_SIGNATURE);
 }
 #endif
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 8e4ac0a91309..8888d894bf39 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -198,12 +198,14 @@ static enum vmx_l1d_flush_state __read_mostly 
vmentry_l1d_flush_param = VMENTER_
 
 static const struct {
        const char *option;
-       enum vmx_l1d_flush_state cmd;
+       bool for_parse;
 } vmentry_l1d_param[] = {
-       {"auto",        VMENTER_L1D_FLUSH_AUTO},
-       {"never",       VMENTER_L1D_FLUSH_NEVER},
-       {"cond",        VMENTER_L1D_FLUSH_COND},
-       {"always",      VMENTER_L1D_FLUSH_ALWAYS},
+       [VMENTER_L1D_FLUSH_AUTO]         = {"auto", true},
+       [VMENTER_L1D_FLUSH_NEVER]        = {"never", true},
+       [VMENTER_L1D_FLUSH_COND]         = {"cond", true},
+       [VMENTER_L1D_FLUSH_ALWAYS]       = {"always", true},
+       [VMENTER_L1D_FLUSH_EPT_DISABLED] = {"EPT disabled", false},
+       [VMENTER_L1D_FLUSH_NOT_REQUIRED] = {"not required", false},
 };
 
 #define L1D_CACHE_ORDER 4
@@ -287,8 +289,9 @@ static int vmentry_l1d_flush_parse(const char *s)
 
        if (s) {
                for (i = 0; i < ARRAY_SIZE(vmentry_l1d_param); i++) {
-                       if (sysfs_streq(s, vmentry_l1d_param[i].option))
-                               return vmentry_l1d_param[i].cmd;
+                       if (vmentry_l1d_param[i].for_parse &&
+                           sysfs_streq(s, vmentry_l1d_param[i].option))
+                               return i;
                }
        }
        return -EINVAL;
@@ -298,13 +301,13 @@ static int vmentry_l1d_flush_set(const char *s, const 
struct kernel_param *kp)
 {
        int l1tf, ret;
 
-       if (!boot_cpu_has(X86_BUG_L1TF))
-               return 0;
-
        l1tf = vmentry_l1d_flush_parse(s);
        if (l1tf < 0)
                return l1tf;
 
+       if (!boot_cpu_has(X86_BUG_L1TF))
+               return 0;
+
        /*
         * Has vmx_init() run already? If not then this is the pre init
         * parameter parsing. In that case just store the value and let
@@ -324,6 +327,9 @@ static int vmentry_l1d_flush_set(const char *s, const 
struct kernel_param *kp)
 
 static int vmentry_l1d_flush_get(char *s, const struct kernel_param *kp)
 {
+       if (WARN_ON_ONCE(l1tf_vmx_mitigation >= ARRAY_SIZE(vmentry_l1d_param)))
+               return sprintf(s, "???\n");
+
        return sprintf(s, "%s\n", 
vmentry_l1d_param[l1tf_vmx_mitigation].option);
 }
 
diff --git a/arch/xtensa/include/asm/cacheasm.h 
b/arch/xtensa/include/asm/cacheasm.h
index 2041abb10a23..34545ecfdd6b 100644
--- a/arch/xtensa/include/asm/cacheasm.h
+++ b/arch/xtensa/include/asm/cacheasm.h
@@ -31,16 +31,32 @@
  *
  */
 
-       .macro  __loop_cache_all ar at insn size line_width
 
-       movi    \ar, 0
+       .macro  __loop_cache_unroll ar at insn size line_width max_immed
+
+       .if     (1 << (\line_width)) > (\max_immed)
+       .set    _reps, 1
+       .elseif (2 << (\line_width)) > (\max_immed)
+       .set    _reps, 2
+       .else
+       .set    _reps, 4
+       .endif
+
+       __loopi \ar, \at, \size, (_reps << (\line_width))
+       .set    _index, 0
+       .rep    _reps
+       \insn   \ar, _index << (\line_width)
+       .set    _index, _index + 1
+       .endr
+       __endla \ar, \at, _reps << (\line_width)
+
+       .endm
+
 
-       __loopi \ar, \at, \size, (4 << (\line_width))
-       \insn   \ar, 0 << (\line_width)
-       \insn   \ar, 1 << (\line_width)
-       \insn   \ar, 2 << (\line_width)
-       \insn   \ar, 3 << (\line_width)
-       __endla \ar, \at, 4 << (\line_width)
+       .macro  __loop_cache_all ar at insn size line_width max_immed
+
+       movi    \ar, 0
+       __loop_cache_unroll \ar, \at, \insn, \size, \line_width, \max_immed
 
        .endm
 
@@ -57,14 +73,9 @@
        .endm
 
 
-       .macro  __loop_cache_page ar at insn line_width
+       .macro  __loop_cache_page ar at insn line_width max_immed
 
-       __loopi \ar, \at, PAGE_SIZE, 4 << (\line_width)
-       \insn   \ar, 0 << (\line_width)
-       \insn   \ar, 1 << (\line_width)
-       \insn   \ar, 2 << (\line_width)
-       \insn   \ar, 3 << (\line_width)
-       __endla \ar, \at, 4 << (\line_width)
+       __loop_cache_unroll \ar, \at, \insn, PAGE_SIZE, \line_width, \max_immed
 
        .endm
 
@@ -72,7 +83,8 @@
        .macro  ___unlock_dcache_all ar at
 
 #if XCHAL_DCACHE_LINE_LOCKABLE && XCHAL_DCACHE_SIZE
-       __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE \
+               XCHAL_DCACHE_LINEWIDTH 240
 #endif
 
        .endm
@@ -81,7 +93,8 @@
        .macro  ___unlock_icache_all ar at
 
 #if XCHAL_ICACHE_LINE_LOCKABLE && XCHAL_ICACHE_SIZE
-       __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH
+       __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE \
+               XCHAL_ICACHE_LINEWIDTH 240
 #endif
 
        .endm
@@ -90,7 +103,8 @@
        .macro  ___flush_invalidate_dcache_all ar at
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE \
+               XCHAL_DCACHE_LINEWIDTH 240
 #endif
 
        .endm
@@ -99,7 +113,8 @@
        .macro  ___flush_dcache_all ar at
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE \
+               XCHAL_DCACHE_LINEWIDTH 240
 #endif
 
        .endm
@@ -108,8 +123,8 @@
        .macro  ___invalidate_dcache_all ar at
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \
-                        XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_all \ar \at dii XCHAL_DCACHE_SIZE \
+                        XCHAL_DCACHE_LINEWIDTH 1020
 #endif
 
        .endm
@@ -118,8 +133,8 @@
        .macro  ___invalidate_icache_all ar at
 
 #if XCHAL_ICACHE_SIZE
-       __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \
-                        XCHAL_ICACHE_LINEWIDTH
+       __loop_cache_all \ar \at iii XCHAL_ICACHE_SIZE \
+                        XCHAL_ICACHE_LINEWIDTH 1020
 #endif
 
        .endm
@@ -166,7 +181,7 @@
        .macro  ___flush_invalidate_dcache_page ar as
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH 1020
 #endif
 
        .endm
@@ -175,7 +190,7 @@
        .macro ___flush_dcache_page ar as
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH 1020
 #endif
 
        .endm
@@ -184,7 +199,7 @@
        .macro  ___invalidate_dcache_page ar as
 
 #if XCHAL_DCACHE_SIZE
-       __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH
+       __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH 1020
 #endif
 
        .endm
@@ -193,7 +208,7 @@
        .macro  ___invalidate_icache_page ar as
 
 #if XCHAL_ICACHE_SIZE
-       __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH
+       __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH 1020
 #endif
 
        .endm
diff --git a/certs/system_keyring.c b/certs/system_keyring.c
index 50979d6dcecd..247665054691 100644
--- a/certs/system_keyring.c
+++ b/certs/system_keyring.c
@@ -14,6 +14,7 @@
 #include <linux/sched.h>
 #include <linux/cred.h>
 #include <linux/err.h>
+#include <linux/verification.h>
 #include <keys/asymmetric-type.h>
 #include <keys/system_keyring.h>
 #include <crypto/pkcs7.h>
@@ -207,7 +208,7 @@ int verify_pkcs7_signature(const void *data, size_t len,
 
        if (!trusted_keys) {
                trusted_keys = builtin_trusted_keys;
-       } else if (trusted_keys == (void *)1UL) {
+       } else if (trusted_keys == VERIFY_USE_SECONDARY_KEYRING) {
 #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
                trusted_keys = secondary_trusted_keys;
 #else
diff --git a/crypto/asymmetric_keys/pkcs7_key_type.c 
b/crypto/asymmetric_keys/pkcs7_key_type.c
index 1063b644efcd..b2aa925a84bc 100644
--- a/crypto/asymmetric_keys/pkcs7_key_type.c
+++ b/crypto/asymmetric_keys/pkcs7_key_type.c
@@ -62,7 +62,7 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep)
 
        return verify_pkcs7_signature(NULL, 0,
                                      prep->data, prep->datalen,
-                                     (void *)1UL, usage,
+                                     VERIFY_USE_SECONDARY_KEYRING, usage,
                                      pkcs7_view_content, prep);
 }
 
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 9e7f28122bb7..6d475a2e298c 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -189,7 +189,8 @@ static void caam_jr_dequeue(unsigned long devarg)
                BUG_ON(CIRC_CNT(head, tail + i, JOBR_DEPTH) <= 0);
 
                /* Unmap just-run descriptor so we can post-process */
-               dma_unmap_single(dev, jrp->outring[hw_idx].desc,
+               dma_unmap_single(dev,
+                                caam_dma_to_cpu(jrp->outring[hw_idx].desc),
                                 jrp->entinfo[sw_idx].desc_size,
                                 DMA_TO_DEVICE);
 
diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c
index 46131701c378..92e116365272 100644
--- a/drivers/crypto/vmx/aes_cbc.c
+++ b/drivers/crypto/vmx/aes_cbc.c
@@ -111,24 +111,23 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
                ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src,
                                               nbytes);
        } else {
-               preempt_disable();
-               pagefault_disable();
-               enable_kernel_vsx();
-
                blkcipher_walk_init(&walk, dst, src, nbytes);
                ret = blkcipher_walk_virt(desc, &walk);
                while ((nbytes = walk.nbytes)) {
+                       preempt_disable();
+                       pagefault_disable();
+                       enable_kernel_vsx();
                        aes_p8_cbc_encrypt(walk.src.virt.addr,
                                           walk.dst.virt.addr,
                                           nbytes & AES_BLOCK_MASK,
                                           &ctx->enc_key, walk.iv, 1);
+                       disable_kernel_vsx();
+                       pagefault_enable();
+                       preempt_enable();
+
                        nbytes &= AES_BLOCK_SIZE - 1;
                        ret = blkcipher_walk_done(desc, &walk, nbytes);
                }
-
-               disable_kernel_vsx();
-               pagefault_enable();
-               preempt_enable();
        }
 
        return ret;
@@ -152,24 +151,23 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
                ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src,
                                               nbytes);
        } else {
-               preempt_disable();
-               pagefault_disable();
-               enable_kernel_vsx();
-
                blkcipher_walk_init(&walk, dst, src, nbytes);
                ret = blkcipher_walk_virt(desc, &walk);
                while ((nbytes = walk.nbytes)) {
+                       preempt_disable();
+                       pagefault_disable();
+                       enable_kernel_vsx();
                        aes_p8_cbc_encrypt(walk.src.virt.addr,
                                           walk.dst.virt.addr,
                                           nbytes & AES_BLOCK_MASK,
                                           &ctx->dec_key, walk.iv, 0);
+                       disable_kernel_vsx();
+                       pagefault_enable();
+                       preempt_enable();
+
                        nbytes &= AES_BLOCK_SIZE - 1;
                        ret = blkcipher_walk_done(desc, &walk, nbytes);
                }
-
-               disable_kernel_vsx();
-               pagefault_enable();
-               preempt_enable();
        }
 
        return ret;
diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c
index 24353ec336c5..52e7ae05ae1f 100644
--- a/drivers/crypto/vmx/aes_xts.c
+++ b/drivers/crypto/vmx/aes_xts.c
@@ -123,32 +123,39 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc,
                ret = enc ? crypto_blkcipher_encrypt(&fallback_desc, dst, src, 
nbytes) :
                             crypto_blkcipher_decrypt(&fallback_desc, dst, src, 
nbytes);
        } else {
+               blkcipher_walk_init(&walk, dst, src, nbytes);
+
+               ret = blkcipher_walk_virt(desc, &walk);
+
                preempt_disable();
                pagefault_disable();
                enable_kernel_vsx();
 
-               blkcipher_walk_init(&walk, dst, src, nbytes);
-
-               ret = blkcipher_walk_virt(desc, &walk);
                iv = walk.iv;
                memset(tweak, 0, AES_BLOCK_SIZE);
                aes_p8_encrypt(iv, tweak, &ctx->tweak_key);
 
+               disable_kernel_vsx();
+               pagefault_enable();
+               preempt_enable();
+
                while ((nbytes = walk.nbytes)) {
+                       preempt_disable();
+                       pagefault_disable();
+                       enable_kernel_vsx();
                        if (enc)
                                aes_p8_xts_encrypt(walk.src.virt.addr, 
walk.dst.virt.addr,
                                                nbytes & AES_BLOCK_MASK, 
&ctx->enc_key, NULL, tweak);
                        else
                                aes_p8_xts_decrypt(walk.src.virt.addr, 
walk.dst.virt.addr,
                                                nbytes & AES_BLOCK_MASK, 
&ctx->dec_key, NULL, tweak);
+                       disable_kernel_vsx();
+                       pagefault_enable();
+                       preempt_enable();
 
                        nbytes &= AES_BLOCK_SIZE - 1;
                        ret = blkcipher_walk_done(desc, &walk, nbytes);
                }
-
-               disable_kernel_vsx();
-               pagefault_enable();
-               preempt_enable();
        }
        return ret;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c 
b/drivers/gpu/drm/i915/i915_gem_userptr.c
index c6f780f5abc9..555fd47c1831 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -778,6 +778,9 @@ i915_gem_userptr_ioctl(struct drm_device *dev, void *data, 
struct drm_file *file
                            I915_USERPTR_UNSYNCHRONIZED))
                return -EINVAL;
 
+       if (!args->user_size)
+               return -EINVAL;
+
        if (offset_in_page(args->user_ptr | args->user_size))
                return -EINVAL;
 
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index 99eba524f6dd..1642b55f70da 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -508,7 +508,7 @@ static ssize_t ad9523_store(struct device *dev,
                return ret;
 
        if (!state)
-               return 0;
+               return len;
 
        mutex_lock(&indio_dev->mlock);
        switch ((u32)this_attr->address) {
@@ -642,7 +642,7 @@ static int ad9523_read_raw(struct iio_dev *indio_dev,
                code = (AD9523_CLK_DIST_DIV_PHASE_REV(ret) * 3141592) /
                        AD9523_CLK_DIST_DIV_REV(ret);
                *val = code / 1000000;
-               *val2 = (code % 1000000) * 10;
+               *val2 = code % 1000000;
                return IIO_VAL_INT_PLUS_MICRO;
        default:
                return -EINVAL;
diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c 
b/drivers/infiniband/sw/rxe/rxe_comp.c
index 6c5e29db88e3..df15b6d7b645 100644
--- a/drivers/infiniband/sw/rxe/rxe_comp.c
+++ b/drivers/infiniband/sw/rxe/rxe_comp.c
@@ -273,6 +273,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
        case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE:
                if (wqe->wr.opcode != IB_WR_RDMA_READ &&
                    wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) {
+                       wqe->status = IB_WC_FATAL_ERR;
                        return COMPST_ERROR;
                }
                reset_retry_counters(qp);
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c 
b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 876f438aa048..fe7c6ec67d98 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1701,8 +1701,7 @@ static bool srpt_close_ch(struct srpt_rdma_ch *ch)
        int ret;
 
        if (!srpt_set_ch_state(ch, CH_DRAINING)) {
-               pr_debug("%s-%d: already closed\n", ch->sess_name,
-                        ch->qp->qp_num);
+               pr_debug("%s: already closed\n", ch->sess_name);
                return false;
        }
 
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 8c53748a769d..63110fbbb410 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1328,8 +1328,8 @@ void qi_flush_iotlb(struct intel_iommu *iommu, u16 did, 
u64 addr,
        qi_submit_sync(&desc, iommu);
 }
 
-void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qdep,
-                       u64 addr, unsigned mask)
+void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 pfsid,
+                       u16 qdep, u64 addr, unsigned mask)
 {
        struct qi_desc desc;
 
@@ -1344,7 +1344,7 @@ void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 
sid, u16 qdep,
                qdep = 0;
 
        desc.low = QI_DEV_IOTLB_SID(sid) | QI_DEV_IOTLB_QDEP(qdep) |
-                  QI_DIOTLB_TYPE;
+                  QI_DIOTLB_TYPE | QI_DEV_IOTLB_PFSID(pfsid);
 
        qi_submit_sync(&desc, iommu);
 }
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 1612d3a22d42..2558a381e118 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -421,6 +421,7 @@ struct device_domain_info {
        struct list_head global; /* link to global list */
        u8 bus;                 /* PCI bus number */
        u8 devfn;               /* PCI devfn number */
+       u16 pfsid;              /* SRIOV physical function source ID */
        u8 pasid_supported:3;
        u8 pasid_enabled:1;
        u8 pri_supported:1;
@@ -1511,6 +1512,20 @@ static void iommu_enable_dev_iotlb(struct 
device_domain_info *info)
                return;
 
        pdev = to_pci_dev(info->dev);
+       /* For IOMMU that supports device IOTLB throttling (DIT), we assign
+        * PFSID to the invalidation desc of a VF such that IOMMU HW can gauge
+        * queue depth at PF level. If DIT is not set, PFSID will be treated as
+        * reserved, which should be set to 0.
+        */
+       if (!ecap_dit(info->iommu->ecap))
+               info->pfsid = 0;
+       else {
+               struct pci_dev *pf_pdev;
+
+               /* pdev will be returned if device is not a vf */
+               pf_pdev = pci_physfn(pdev);
+               info->pfsid = PCI_DEVID(pf_pdev->bus->number, pf_pdev->devfn);
+       }
 
 #ifdef CONFIG_INTEL_IOMMU_SVM
        /* The PCIe spec, in its wisdom, declares that the behaviour of
@@ -1576,7 +1591,8 @@ static void iommu_flush_dev_iotlb(struct dmar_domain 
*domain,
 
                sid = info->bus << 8 | info->devfn;
                qdep = info->ats_qdep;
-               qi_flush_dev_iotlb(info->iommu, sid, qdep, addr, mask);
+               qi_flush_dev_iotlb(info->iommu, sid, info->pfsid,
+                               qdep, addr, mask);
        }
        spin_unlock_irqrestore(&device_domain_lock, flags);
 }
diff --git a/drivers/mailbox/mailbox-xgene-slimpro.c 
b/drivers/mailbox/mailbox-xgene-slimpro.c
index dd2afbca51c9..26d2f89db4d9 100644
--- a/drivers/mailbox/mailbox-xgene-slimpro.c
+++ b/drivers/mailbox/mailbox-xgene-slimpro.c
@@ -195,9 +195,9 @@ static int slimpro_mbox_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, ctx);
 
        regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       mb_base = devm_ioremap(&pdev->dev, regs->start, resource_size(regs));
-       if (!mb_base)
-               return -ENOMEM;
+       mb_base = devm_ioremap_resource(&pdev->dev, regs);
+       if (IS_ERR(mb_base))
+               return PTR_ERR(mb_base);
 
        /* Setup mailbox links */
        for (i = 0; i < MBOX_CNT; i++) {
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index bb7aa31c2a08..cdf388d40274 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -456,8 +456,10 @@ static int bch_writeback_thread(void *arg)
                         * data on cache. BCACHE_DEV_DETACHING flag is set in
                         * bch_cached_dev_detach().
                         */
-                       if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags))
+                       if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags)) {
+                               up_write(&dc->writeback_lock);
                                break;
+                       }
                }
 
                up_write(&dc->writeback_lock);
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 6937ca42be8c..a184c9830ca5 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -344,7 +344,7 @@ static int __write_initial_superblock(struct 
dm_cache_metadata *cmd)
        disk_super->version = cpu_to_le32(MAX_CACHE_VERSION);
        memset(disk_super->policy_name, 0, sizeof(disk_super->policy_name));
        memset(disk_super->policy_version, 0, 
sizeof(disk_super->policy_version));
-       disk_super->policy_hint_size = 0;
+       disk_super->policy_hint_size = cpu_to_le32(0);
 
        __copy_sm_root(cmd, disk_super);
 
@@ -659,6 +659,7 @@ static int __commit_transaction(struct dm_cache_metadata 
*cmd,
        disk_super->policy_version[0] = cpu_to_le32(cmd->policy_version[0]);
        disk_super->policy_version[1] = cpu_to_le32(cmd->policy_version[1]);
        disk_super->policy_version[2] = cpu_to_le32(cmd->policy_version[2]);
+       disk_super->policy_hint_size = cpu_to_le32(cmd->policy_hint_size);
 
        disk_super->read_hits = cpu_to_le32(cmd->stats.read_hits);
        disk_super->read_misses = cpu_to_le32(cmd->stats.read_misses);
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 0f0374a4ac6e..a952ad890f32 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2518,6 +2518,8 @@ static void set_pool_mode(struct pool *pool, enum 
pool_mode new_mode)
        case PM_WRITE:
                if (old_mode != new_mode)
                        notify_of_pool_mode_change(pool, "write");
+               if (old_mode == PM_OUT_OF_DATA_SPACE)
+                       cancel_delayed_work_sync(&pool->no_space_timeout);
                pool->out_of_data_space = false;
                pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space;
                dm_pool_metadata_read_write(pool->pmd);
diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
index 0fc62995695b..11347a3e6d40 100644
--- a/drivers/mfd/hi655x-pmic.c
+++ b/drivers/mfd/hi655x-pmic.c
@@ -49,7 +49,7 @@ static struct regmap_config hi655x_regmap_config = {
        .reg_bits = 32,
        .reg_stride = HI655X_STRIDE,
        .val_bits = 8,
-       .max_register = HI655X_BUS_ADDR(0xFFF),
+       .max_register = HI655X_BUS_ADDR(0x400) - HI655X_STRIDE,
 };
 
 static struct resource pwrkey_resources[] = {
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index cc1706a92ace..a078d49485d8 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -293,7 +293,7 @@ int cxl_adapter_context_get(struct cxl *adapter)
        int rc;
 
        rc = atomic_inc_unless_negative(&adapter->contexts_num);
-       return rc >= 0 ? 0 : -EBUSY;
+       return rc ? 0 : -EBUSY;
 }
 
 void cxl_adapter_context_put(struct cxl *adapter)
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 5e047bfc0cc4..518e2dec2aa2 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -341,7 +341,13 @@ static bool vmballoon_send_start(struct vmballoon *b, 
unsigned long req_caps)
                success = false;
        }
 
-       if (b->capabilities & VMW_BALLOON_BATCHED_2M_CMDS)
+       /*
+        * 2MB pages are only supported with batching. If batching is for some
+        * reason disabled, do not use 2MB pages, since otherwise the legacy
+        * mechanism is used with 2MB pages, causing a failure.
+        */
+       if ((b->capabilities & VMW_BALLOON_BATCHED_2M_CMDS) &&
+           (b->capabilities & VMW_BALLOON_BATCHED_CMDS))
                b->supported_page_sizes = 2;
        else
                b->supported_page_sizes = 1;
@@ -450,7 +456,7 @@ static int vmballoon_send_lock_page(struct vmballoon *b, 
unsigned long pfn,
 
        pfn32 = (u32)pfn;
        if (pfn32 != pfn)
-               return -1;
+               return -EINVAL;
 
        STATS_INC(b->stats.lock[false]);
 
@@ -460,7 +466,7 @@ static int vmballoon_send_lock_page(struct vmballoon *b, 
unsigned long pfn,
 
        pr_debug("%s - ppn %lx, hv returns %ld\n", __func__, pfn, status);
        STATS_INC(b->stats.lock_fail[false]);
-       return 1;
+       return -EIO;
 }
 
 static int vmballoon_send_batched_lock(struct vmballoon *b,
@@ -597,11 +603,12 @@ static int vmballoon_lock_page(struct vmballoon *b, 
unsigned int num_pages,
 
        locked = vmballoon_send_lock_page(b, page_to_pfn(page), &hv_status,
                                                                target);
-       if (locked > 0) {
+       if (locked) {
                STATS_INC(b->stats.refused_alloc[false]);
 
-               if (hv_status == VMW_BALLOON_ERROR_RESET ||
-                               hv_status == VMW_BALLOON_ERROR_PPN_NOTNEEDED) {
+               if (locked == -EIO &&
+                   (hv_status == VMW_BALLOON_ERROR_RESET ||
+                    hv_status == VMW_BALLOON_ERROR_PPN_NOTNEEDED)) {
                        vmballoon_free_page(page, false);
                        return -EIO;
                }
@@ -617,7 +624,7 @@ static int vmballoon_lock_page(struct vmballoon *b, 
unsigned int num_pages,
                } else {
                        vmballoon_free_page(page, false);
                }
-               return -EIO;
+               return locked;
        }
 
        /* track allocated page */
@@ -1029,29 +1036,30 @@ static void vmballoon_vmci_cleanup(struct vmballoon *b)
  */
 static int vmballoon_vmci_init(struct vmballoon *b)
 {
-       int error = 0;
+       unsigned long error, dummy;
 
-       if ((b->capabilities & VMW_BALLOON_SIGNALLED_WAKEUP_CMD) != 0) {
-               error = vmci_doorbell_create(&b->vmci_doorbell,
-                               VMCI_FLAG_DELAYED_CB,
-                               VMCI_PRIVILEGE_FLAG_RESTRICTED,
-                               vmballoon_doorbell, b);
-
-               if (error == VMCI_SUCCESS) {
-                       VMWARE_BALLOON_CMD(VMCI_DOORBELL_SET,
-                                       b->vmci_doorbell.context,
-                                       b->vmci_doorbell.resource, error);
-                       STATS_INC(b->stats.doorbell_set);
-               }
-       }
+       if ((b->capabilities & VMW_BALLOON_SIGNALLED_WAKEUP_CMD) == 0)
+               return 0;
 
-       if (error != 0) {
-               vmballoon_vmci_cleanup(b);
+       error = vmci_doorbell_create(&b->vmci_doorbell, VMCI_FLAG_DELAYED_CB,
+                                    VMCI_PRIVILEGE_FLAG_RESTRICTED,
+                                    vmballoon_doorbell, b);
 
-               return -EIO;
-       }
+       if (error != VMCI_SUCCESS)
+               goto fail;
+
+       error = VMWARE_BALLOON_CMD(VMCI_DOORBELL_SET, b->vmci_doorbell.context,
+                                  b->vmci_doorbell.resource, dummy);
+
+       STATS_INC(b->stats.doorbell_set);
+
+       if (error != VMW_BALLOON_SUCCESS)
+               goto fail;
 
        return 0;
+fail:
+       vmballoon_vmci_cleanup(b);
+       return -EIO;
 }
 
 /*
@@ -1289,7 +1297,14 @@ static int __init vmballoon_init(void)
 
        return 0;
 }
-module_init(vmballoon_init);
+
+/*
+ * Using late_initcall() instead of module_init() allows the balloon to use the
+ * VMCI doorbell even when the balloon is built into the kernel. Otherwise the
+ * VMCI is probed only after the balloon is initialized. If the balloon is used
+ * as a module, late_initcall() is equivalent to module_init().
+ */
+late_initcall(vmballoon_init);
 
 static void __exit vmballoon_exit(void)
 {
diff --git a/drivers/net/wireless/marvell/libertas/dev.h 
b/drivers/net/wireless/marvell/libertas/dev.h
index edf710bc5e77..3de1457ad3a7 100644
--- a/drivers/net/wireless/marvell/libertas/dev.h
+++ b/drivers/net/wireless/marvell/libertas/dev.h
@@ -103,6 +103,7 @@ struct lbs_private {
        u8 fw_ready;
        u8 surpriseremoved;
        u8 setup_fw_on_resume;
+       u8 power_up_on_resume;
        int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, 
u16 nb);
        void (*reset_card) (struct lbs_private *priv);
        int (*power_save) (struct lbs_private *priv);
diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.c 
b/drivers/net/wireless/marvell/libertas/if_sdio.c
index 47f4a14c84fe..a0ae8d8763bb 100644
--- a/drivers/net/wireless/marvell/libertas/if_sdio.c
+++ b/drivers/net/wireless/marvell/libertas/if_sdio.c
@@ -1341,15 +1341,23 @@ static void if_sdio_remove(struct sdio_func *func)
 static int if_sdio_suspend(struct device *dev)
 {
        struct sdio_func *func = dev_to_sdio_func(dev);
-       int ret;
        struct if_sdio_card *card = sdio_get_drvdata(func);
+       struct lbs_private *priv = card->priv;
+       int ret;
 
        mmc_pm_flag_t flags = sdio_get_host_pm_caps(func);
+       priv->power_up_on_resume = false;
 
        /* If we're powered off anyway, just let the mmc layer remove the
         * card. */
-       if (!lbs_iface_active(card->priv))
-               return -ENOSYS;
+       if (!lbs_iface_active(priv)) {
+               if (priv->fw_ready) {
+                       priv->power_up_on_resume = true;
+                       if_sdio_power_off(card);
+               }
+
+               return 0;
+       }
 
        dev_info(dev, "%s: suspend: PM flags = 0x%x\n",
                 sdio_func_id(func), flags);
@@ -1357,9 +1365,14 @@ static int if_sdio_suspend(struct device *dev)
        /* If we aren't being asked to wake on anything, we should bail out
         * and let the SD stack power down the card.
         */
-       if (card->priv->wol_criteria == EHS_REMOVE_WAKEUP) {
+       if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
                dev_info(dev, "Suspend without wake params -- powering down 
card\n");
-               return -ENOSYS;
+               if (priv->fw_ready) {
+                       priv->power_up_on_resume = true;
+                       if_sdio_power_off(card);
+               }
+
+               return 0;
        }
 
        if (!(flags & MMC_PM_KEEP_POWER)) {
@@ -1372,7 +1385,7 @@ static int if_sdio_suspend(struct device *dev)
        if (ret)
                return ret;
 
-       ret = lbs_suspend(card->priv);
+       ret = lbs_suspend(priv);
        if (ret)
                return ret;
 
@@ -1387,6 +1400,11 @@ static int if_sdio_resume(struct device *dev)
 
        dev_info(dev, "%s: resume: we're back\n", sdio_func_id(func));
 
+       if (card->priv->power_up_on_resume) {
+               if_sdio_power_on(card);
+               wait_event(card->pwron_waitq, card->priv->fw_ready);
+       }
+
        ret = lbs_resume(card->priv);
 
        return ret;
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index c1a65ce31243..de6d3b749c60 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -748,9 +748,9 @@ u32 nd_cmd_out_size(struct nvdimm *nvdimm, int cmd,
                 * overshoots the remainder by 4 bytes, assume it was
                 * including 'status'.
                 */
-               if (out_field[1] - 8 == remainder)
+               if (out_field[1] - 4 == remainder)
                        return remainder;
-               return out_field[1] - 4;
+               return out_field[1] - 8;
        } else if (cmd == ND_CMD_CALL) {
                struct nd_cmd_pkg *pkg = (struct nd_cmd_pkg *) in_field;
 
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index b5c6b0636893..c0e06f0c19d1 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -382,6 +382,8 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, 
struct pwm_device *pwm)
                aqcsfrc_mask = AQCSFRC_CSFA_MASK;
        }
 
+       /* Update shadow register first before modifying active register */
+       ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val);
        /*
         * Changes to immediate action on Action Qualifier. This puts
         * Action Qualifier control on PWM output from next TBCLK
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 51e52446eacb..bd5ca548c265 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -817,13 +817,6 @@ static int omap_rtc_probe(struct platform_device *pdev)
                        goto err;
        }
 
-       if (rtc->is_pmic_controller) {
-               if (!pm_power_off) {
-                       omap_rtc_power_off_rtc = rtc;
-                       pm_power_off = omap_rtc_power_off;
-               }
-       }
-
        /* Support ext_wakeup pinconf */
        rtc_pinctrl_desc.name = dev_name(&pdev->dev);
 
@@ -833,6 +826,13 @@ static int omap_rtc_probe(struct platform_device *pdev)
                return PTR_ERR(rtc->pctldev);
        }
 
+       if (rtc->is_pmic_controller) {
+               if (!pm_power_off) {
+                       omap_rtc_power_off_rtc = rtc;
+                       pm_power_off = omap_rtc_power_off;
+               }
+       }
+
        return 0;
 
 err:
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 0d8f43a17edb..1905d20c229f 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -215,7 +215,7 @@ static void davinci_spi_chipselect(struct spi_device *spi, 
int value)
        pdata = &dspi->pdata;
 
        /* program delay transfers if tx_delay is non zero */
-       if (spicfg->wdelay)
+       if (spicfg && spicfg->wdelay)
                spidat1 |= SPIDAT1_WDEL;
 
        /*
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index a67b0ff6a362..db3b6e9151a8 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -715,30 +715,30 @@ static int dspi_probe(struct platform_device *pdev)
                return PTR_ERR(dspi->regmap);
        }
 
+       dspi->clk = devm_clk_get(&pdev->dev, "dspi");
+       if (IS_ERR(dspi->clk)) {
+               ret = PTR_ERR(dspi->clk);
+               dev_err(&pdev->dev, "unable to get clock\n");
+               goto out_master_put;
+       }
+       ret = clk_prepare_enable(dspi->clk);
+       if (ret)
+               goto out_master_put;
+
        dspi_init(dspi);
        dspi->irq = platform_get_irq(pdev, 0);
        if (dspi->irq < 0) {
                dev_err(&pdev->dev, "can't get platform irq\n");
                ret = dspi->irq;
-               goto out_master_put;
+               goto out_clk_put;
        }
 
        ret = devm_request_irq(&pdev->dev, dspi->irq, dspi_interrupt, 0,
                        pdev->name, dspi);
        if (ret < 0) {
                dev_err(&pdev->dev, "Unable to attach DSPI interrupt\n");
-               goto out_master_put;
-       }
-
-       dspi->clk = devm_clk_get(&pdev->dev, "dspi");
-       if (IS_ERR(dspi->clk)) {
-               ret = PTR_ERR(dspi->clk);
-               dev_err(&pdev->dev, "unable to get clock\n");
-               goto out_master_put;
+               goto out_clk_put;
        }
-       ret = clk_prepare_enable(dspi->clk);
-       if (ret)
-               goto out_master_put;
 
        master->max_speed_hz =
                clk_get_rate(dspi->clk) / dspi->devtype_data->max_clock_factor;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 6cbd46c565f8..53e6db8b0330 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -172,6 +172,7 @@ static int uart_port_startup(struct tty_struct *tty, struct 
uart_state *state,
 {
        struct uart_port *uport = uart_port_check(state);
        unsigned long page;
+       unsigned long flags = 0;
        int retval = 0;
 
        if (uport->type == PORT_UNKNOWN)
@@ -186,15 +187,18 @@ static int uart_port_startup(struct tty_struct *tty, 
struct uart_state *state,
         * Initialise and allocate the transmit and temporary
         * buffer.
         */
-       if (!state->xmit.buf) {
-               /* This is protected by the per port mutex */
-               page = get_zeroed_page(GFP_KERNEL);
-               if (!page)
-                       return -ENOMEM;
+       page = get_zeroed_page(GFP_KERNEL);
+       if (!page)
+               return -ENOMEM;
 
+       uart_port_lock(state, flags);
+       if (!state->xmit.buf) {
                state->xmit.buf = (unsigned char *) page;
                uart_circ_clear(&state->xmit);
+       } else {
+               free_page(page);
        }
+       uart_port_unlock(uport, flags);
 
        retval = uport->ops->startup(uport);
        if (retval == 0) {
@@ -253,6 +257,7 @@ static void uart_shutdown(struct tty_struct *tty, struct 
uart_state *state)
 {
        struct uart_port *uport = uart_port_check(state);
        struct tty_port *port = &state->port;
+       unsigned long flags = 0;
 
        /*
         * Set the TTY IO error marker
@@ -285,10 +290,12 @@ static void uart_shutdown(struct tty_struct *tty, struct 
uart_state *state)
        /*
         * Free the transmit buffer page.
         */
+       uart_port_lock(state, flags);
        if (state->xmit.buf) {
                free_page((unsigned long)state->xmit.buf);
                state->xmit.buf = NULL;
        }
+       uart_port_unlock(uport, flags);
 }
 
 /**
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 76c1ad96fb37..74273bc7ca9a 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1695,12 +1695,12 @@ static int do_register_framebuffer(struct fb_info 
*fb_info)
        return 0;
 }
 
-static int do_unregister_framebuffer(struct fb_info *fb_info)
+static int unbind_console(struct fb_info *fb_info)
 {
        struct fb_event event;
-       int i, ret = 0;
+       int ret;
+       int i = fb_info->node;
 
-       i = fb_info->node;
        if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info)
                return -EINVAL;
 
@@ -1715,17 +1715,29 @@ static int do_unregister_framebuffer(struct fb_info 
*fb_info)
        unlock_fb_info(fb_info);
        console_unlock();
 
+       return ret;
+}
+
+static int __unlink_framebuffer(struct fb_info *fb_info);
+
+static int do_unregister_framebuffer(struct fb_info *fb_info)
+{
+       struct fb_event event;
+       int ret;
+
+       ret = unbind_console(fb_info);
+
        if (ret)
                return -EINVAL;
 
        pm_vt_switch_unregister(fb_info->dev);
 
-       unlink_framebuffer(fb_info);
+       __unlink_framebuffer(fb_info);
        if (fb_info->pixmap.addr &&
            (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
                kfree(fb_info->pixmap.addr);
        fb_destroy_modelist(&fb_info->modelist);
-       registered_fb[i] = NULL;
+       registered_fb[fb_info->node] = NULL;
        num_registered_fb--;
        fb_cleanup_device(fb_info);
        event.info = fb_info;
@@ -1738,7 +1750,7 @@ static int do_unregister_framebuffer(struct fb_info 
*fb_info)
        return 0;
 }
 
-int unlink_framebuffer(struct fb_info *fb_info)
+static int __unlink_framebuffer(struct fb_info *fb_info)
 {
        int i;
 
@@ -1750,6 +1762,20 @@ int unlink_framebuffer(struct fb_info *fb_info)
                device_destroy(fb_class, MKDEV(FB_MAJOR, i));
                fb_info->dev = NULL;
        }
+
+       return 0;
+}
+
+int unlink_framebuffer(struct fb_info *fb_info)
+{
+       int ret;
+
+       ret = __unlink_framebuffer(fb_info);
+       if (ret)
+               return ret;
+
+       unbind_console(fb_info);
+
        return 0;
 }
 EXPORT_SYMBOL(unlink_framebuffer);
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index f329eee6dc93..352abc39e891 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -105,7 +105,7 @@ int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
 {
        struct kvec kvec = {.iov_base = (void *)value, .iov_len = value_len};
        struct iov_iter from;
-       int retval;
+       int retval, err;
 
        iov_iter_kvec(&from, WRITE | ITER_KVEC, &kvec, 1, value_len);
 
@@ -126,7 +126,9 @@ int v9fs_fid_xattr_set(struct p9_fid *fid, const char *name,
                         retval);
        else
                p9_client_write(fid, 0, &from, &retval);
-       p9_client_clunk(fid);
+       err = p9_client_clunk(fid);
+       if (!retval && err)
+               retval = err;
        return retval;
 }
 
diff --git a/fs/nfs/blocklayout/dev.c b/fs/nfs/blocklayout/dev.c
index a69ef4e9c24c..d6e4191276c0 100644
--- a/fs/nfs/blocklayout/dev.c
+++ b/fs/nfs/blocklayout/dev.c
@@ -203,7 +203,7 @@ static bool bl_map_stripe(struct pnfs_block_dev *dev, u64 
offset,
        chunk = div_u64(offset, dev->chunk_size);
        div_u64_rem(chunk, dev->nr_children, &chunk_idx);
 
-       if (chunk_idx > dev->nr_children) {
+       if (chunk_idx >= dev->nr_children) {
                dprintk("%s: invalid chunk idx %d (%lld/%lld)\n",
                        __func__, chunk_idx, offset, dev->chunk_size);
                /* error, should not happen */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cf5fdc25289a..e7ca62a86dab 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -541,8 +541,15 @@ nfs4_async_handle_exception(struct rpc_task *task, struct 
nfs_server *server,
                ret = -EIO;
        return ret;
 out_retry:
-       if (ret == 0)
+       if (ret == 0) {
                exception->retry = 1;
+               /*
+                * For NFS4ERR_MOVED, the client transport will need to
+                * be recomputed after migration recovery has completed.
+                */
+               if (errorcode == -NFS4ERR_MOVED)
+                       rpc_task_release_transport(task);
+       }
        return ret;
 }
 
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 2d445425aad7..a2329f7ec638 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -17,6 +17,7 @@
 #include <linux/quotaops.h>
 #include <linux/types.h>
 #include <linux/writeback.h>
+#include <linux/nospec.h>
 
 static int check_quotactl_permission(struct super_block *sb, int type, int cmd,
                                     qid_t id)
@@ -706,6 +707,7 @@ static int do_quotactl(struct super_block *sb, int type, 
int cmd, qid_t id,
 
        if (type >= (XQM_COMMAND(cmd) ? XQM_MAXQUOTAS : MAXQUOTAS))
                return -EINVAL;
+       type = array_index_nospec(type, MAXQUOTAS);
        /*
         * Quota not supported on this fs? Check this before s_quota_types
         * since they needn't be set if quota is not supported at all.
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 504658fd0d08..f8ce849e90d1 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -661,6 +661,11 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct 
inode *dir,
        spin_lock(&ui->ui_lock);
        ui->synced_i_size = ui->ui_size;
        spin_unlock(&ui->ui_lock);
+       if (xent) {
+               spin_lock(&host_ui->ui_lock);
+               host_ui->synced_i_size = host_ui->ui_size;
+               spin_unlock(&host_ui->ui_lock);
+       }
        mark_inode_clean(c, ui);
        mark_inode_clean(c, host_ui);
        return 0;
@@ -1265,7 +1270,7 @@ static int recomp_data_node(const struct ubifs_info *c,
        int err, len, compr_type, out_len;
 
        out_len = le32_to_cpu(dn->size);
-       buf = kmalloc_array(out_len, WORST_COMPR_FACTOR, GFP_NOFS);
+       buf = kmalloc(out_len * WORST_COMPR_FACTOR, GFP_NOFS);
        if (!buf)
                return -ENOMEM;
 
@@ -1344,7 +1349,16 @@ int ubifs_jnl_truncate(struct ubifs_info *c, const 
struct inode *inode,
                else if (err)
                        goto out_free;
                else {
-                       if (le32_to_cpu(dn->size) <= dlen)
+                       int dn_len = le32_to_cpu(dn->size);
+
+                       if (dn_len <= 0 || dn_len > UBIFS_BLOCK_SIZE) {
+                               ubifs_err(c, "bad data node (block %u, inode 
%lu)",
+                                         blk, inode->i_ino);
+                               ubifs_dump_node(c, dn);
+                               goto out_free;
+                       }
+
+                       if (dn_len <= dlen)
                                dlen = 0; /* Nothing to do */
                        else {
                                int compr_type = le16_to_cpu(dn->compr_type);
diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c
index 6c3a1abd0e22..780a436d8c45 100644
--- a/fs/ubifs/lprops.c
+++ b/fs/ubifs/lprops.c
@@ -1091,10 +1091,6 @@ static int scan_check_cb(struct ubifs_info *c,
                }
        }
 
-       buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL);
-       if (!buf)
-               return -ENOMEM;
-
        /*
         * After an unclean unmount, empty and freeable LEBs
         * may contain garbage - do not scan them.
@@ -1113,6 +1109,10 @@ static int scan_check_cb(struct ubifs_info *c,
                return LPT_SCAN_CONTINUE;
        }
 
+       buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL);
+       if (!buf)
+               return -ENOMEM;
+
        sleb = ubifs_scan(c, lnum, 0, buf, 0);
        if (IS_ERR(sleb)) {
                ret = PTR_ERR(sleb);
diff --git a/fs/xattr.c b/fs/xattr.c
index 932b9061a3a2..093998872329 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -540,7 +540,7 @@ getxattr(struct dentry *d, const char __user *name, void 
__user *value,
        if (error > 0) {
                if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) ||
                    (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0))
-                       posix_acl_fix_xattr_to_user(kvalue, size);
+                       posix_acl_fix_xattr_to_user(kvalue, error);
                if (size && copy_to_user(value, kvalue, error))
                        error = -EFAULT;
        } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) {
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 23e129ef6726..e353f6600b0b 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -125,6 +125,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
  * Extended Capability Register
  */
 
+#define ecap_dit(e)            ((e >> 41) & 0x1)
 #define ecap_pasid(e)          ((e >> 40) & 0x1)
 #define ecap_pss(e)            ((e >> 35) & 0x1f)
 #define ecap_eafs(e)           ((e >> 34) & 0x1)
@@ -294,6 +295,7 @@ enum {
 #define QI_DEV_IOTLB_SID(sid)  ((u64)((sid) & 0xffff) << 32)
 #define QI_DEV_IOTLB_QDEP(qdep)        (((qdep) & 0x1f) << 16)
 #define QI_DEV_IOTLB_ADDR(addr)        ((u64)(addr) & VTD_PAGE_MASK)
+#define QI_DEV_IOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | ((u64)(pfsid & 
0xfff) << 52))
 #define QI_DEV_IOTLB_SIZE      1
 #define QI_DEV_IOTLB_MAX_INVS  32
 
@@ -318,6 +320,7 @@ enum {
 #define QI_DEV_EIOTLB_PASID(p) (((u64)p) << 32)
 #define QI_DEV_EIOTLB_SID(sid) ((u64)((sid) & 0xffff) << 16)
 #define QI_DEV_EIOTLB_QDEP(qd) ((u64)((qd) & 0x1f) << 4)
+#define QI_DEV_EIOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | ((u64)(pfsid 
& 0xfff) << 52))
 #define QI_DEV_EIOTLB_MAX_INVS 32
 
 #define QI_PGRP_IDX(idx)       (((u64)(idx)) << 55)
@@ -463,9 +466,8 @@ extern void qi_flush_context(struct intel_iommu *iommu, u16 
did, u16 sid,
                             u8 fm, u64 type);
 extern void qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
                          unsigned int size_order, u64 type);
-extern void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qdep,
-                              u64 addr, unsigned mask);
-
+extern void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 pfsid,
+                       u16 qdep, u64 addr, unsigned mask);
 extern int qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu);
 
 extern int dmar_ir_support(void);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 78c9f4a91d94..534cb43e8635 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2151,4 +2151,16 @@ static inline bool pci_ari_enabled(struct pci_bus *bus)
 /* provide the legacy pci_dma_* API */
 #include <linux/pci-dma-compat.h>
 
+#define pci_printk(level, pdev, fmt, arg...) \
+       dev_printk(level, &(pdev)->dev, fmt, ##arg)
+
+#define pci_emerg(pdev, fmt, arg...)   dev_emerg(&(pdev)->dev, fmt, ##arg)
+#define pci_alert(pdev, fmt, arg...)   dev_alert(&(pdev)->dev, fmt, ##arg)
+#define pci_crit(pdev, fmt, arg...)    dev_crit(&(pdev)->dev, fmt, ##arg)
+#define pci_err(pdev, fmt, arg...)     dev_err(&(pdev)->dev, fmt, ##arg)
+#define pci_warn(pdev, fmt, arg...)    dev_warn(&(pdev)->dev, fmt, ##arg)
+#define pci_notice(pdev, fmt, arg...)  dev_notice(&(pdev)->dev, fmt, ##arg)
+#define pci_info(pdev, fmt, arg...)    dev_info(&(pdev)->dev, fmt, ##arg)
+#define pci_dbg(pdev, fmt, arg...)     dev_dbg(&(pdev)->dev, fmt, ##arg)
+
 #endif /* LINUX_PCI_H */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 333ad11b3dd9..44161a4c124c 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -155,6 +155,7 @@ int         rpc_switch_client_transport(struct rpc_clnt *,
 
 void           rpc_shutdown_client(struct rpc_clnt *);
 void           rpc_release_client(struct rpc_clnt *);
+void           rpc_task_release_transport(struct rpc_task *);
 void           rpc_task_release_client(struct rpc_task *);
 
 int            rpcb_create_local(struct net *);
diff --git a/include/linux/verification.h b/include/linux/verification.h
index a10549a6c7cd..cfa4730d607a 100644
--- a/include/linux/verification.h
+++ b/include/linux/verification.h
@@ -12,6 +12,12 @@
 #ifndef _LINUX_VERIFICATION_H
 #define _LINUX_VERIFICATION_H
 
+/*
+ * Indicate that both builtin trusted keys and secondary trusted keys
+ * should be used.
+ */
+#define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL)
+
 /*
  * The use to which an asymmetric key is being put.
  */
diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index f9466fa54ba4..2ad9a6d37ff4 100644
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -87,7 +87,7 @@ struct dlfb_data {
 #define MIN_RAW_PIX_BYTES      2
 #define MIN_RAW_CMD_BYTES      (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES)
 
-#define DL_DEFIO_WRITE_DELAY    5 /* fb_deferred_io.delay in jiffies */
+#define DL_DEFIO_WRITE_DELAY    msecs_to_jiffies(HZ <= 300 ? 4 : 10) /* 
optimal value for 720p video */
 #define DL_DEFIO_WRITE_DISABLE  (HZ*60) /* "disable" with long delay */
 
 /* remove these once align.h patch is taken into kernel */
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index e8517b63eb37..dd2b5a4d89a5 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -105,6 +105,7 @@ config PM_SLEEP
        def_bool y
        depends on SUSPEND || HIBERNATE_CALLBACKS
        select PM
+       select SRCU
 
 config PM_SLEEP_SMP
        def_bool y
diff --git a/kernel/printk/nmi.c b/kernel/printk/nmi.c
index 5fa65aa904d3..2c3e7f024c15 100644
--- a/kernel/printk/nmi.c
+++ b/kernel/printk/nmi.c
@@ -260,12 +260,12 @@ void __init printk_nmi_init(void)
        printk_nmi_flush();
 }
 
-void printk_nmi_enter(void)
+void notrace printk_nmi_enter(void)
 {
        this_cpu_write(printk_func, vprintk_nmi);
 }
 
-void printk_nmi_exit(void)
+void notrace printk_nmi_exit(void)
 {
        this_cpu_write(printk_func, vprintk_default);
 }
diff --git a/kernel/sys.c b/kernel/sys.c
index b13b530b5e0f..6c4e9b533258 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1142,18 +1142,19 @@ static int override_release(char __user *release, 
size_t len)
 
 SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
 {
-       int errno = 0;
+       struct new_utsname tmp;
 
        down_read(&uts_sem);
-       if (copy_to_user(name, utsname(), sizeof *name))
-               errno = -EFAULT;
+       memcpy(&tmp, utsname(), sizeof(tmp));
        up_read(&uts_sem);
+       if (copy_to_user(name, &tmp, sizeof(tmp)))
+               return -EFAULT;
 
-       if (!errno && override_release(name->release, sizeof(name->release)))
-               errno = -EFAULT;
-       if (!errno && override_architecture(name))
-               errno = -EFAULT;
-       return errno;
+       if (override_release(name->release, sizeof(name->release)))
+               return -EFAULT;
+       if (override_architecture(name))
+               return -EFAULT;
+       return 0;
 }
 
 #ifdef __ARCH_WANT_SYS_OLD_UNAME
@@ -1162,55 +1163,46 @@ SYSCALL_DEFINE1(newuname, struct new_utsname __user *, 
name)
  */
 SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
 {
-       int error = 0;
+       struct old_utsname tmp;
 
        if (!name)
                return -EFAULT;
 
        down_read(&uts_sem);
-       if (copy_to_user(name, utsname(), sizeof(*name)))
-               error = -EFAULT;
+       memcpy(&tmp, utsname(), sizeof(tmp));
        up_read(&uts_sem);
+       if (copy_to_user(name, &tmp, sizeof(tmp)))
+               return -EFAULT;
 
-       if (!error && override_release(name->release, sizeof(name->release)))
-               error = -EFAULT;
-       if (!error && override_architecture(name))
-               error = -EFAULT;
-       return error;
+       if (override_release(name->release, sizeof(name->release)))
+               return -EFAULT;
+       if (override_architecture(name))
+               return -EFAULT;
+       return 0;
 }
 
 SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
 {
-       int error;
+       struct oldold_utsname tmp = {};
 
        if (!name)
                return -EFAULT;
-       if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
-               return -EFAULT;
 
        down_read(&uts_sem);
-       error = __copy_to_user(&name->sysname, &utsname()->sysname,
-                              __OLD_UTS_LEN);
-       error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->nodename, &utsname()->nodename,
-                               __OLD_UTS_LEN);
-       error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->release, &utsname()->release,
-                               __OLD_UTS_LEN);
-       error |= __put_user(0, name->release + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->version, &utsname()->version,
-                               __OLD_UTS_LEN);
-       error |= __put_user(0, name->version + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->machine, &utsname()->machine,
-                               __OLD_UTS_LEN);
-       error |= __put_user(0, name->machine + __OLD_UTS_LEN);
+       memcpy(&tmp.sysname, &utsname()->sysname, __OLD_UTS_LEN);
+       memcpy(&tmp.nodename, &utsname()->nodename, __OLD_UTS_LEN);
+       memcpy(&tmp.release, &utsname()->release, __OLD_UTS_LEN);
+       memcpy(&tmp.version, &utsname()->version, __OLD_UTS_LEN);
+       memcpy(&tmp.machine, &utsname()->machine, __OLD_UTS_LEN);
        up_read(&uts_sem);
+       if (copy_to_user(name, &tmp, sizeof(tmp)))
+               return -EFAULT;
 
-       if (!error && override_architecture(name))
-               error = -EFAULT;
-       if (!error && override_release(name->release, sizeof(name->release)))
-               error = -EFAULT;
-       return error ? -EFAULT : 0;
+       if (override_architecture(name))
+               return -EFAULT;
+       if (override_release(name->release, sizeof(name->release)))
+               return -EFAULT;
+       return 0;
 }
 #endif
 
@@ -1224,17 +1216,18 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, 
len)
 
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
-       down_write(&uts_sem);
        errno = -EFAULT;
        if (!copy_from_user(tmp, name, len)) {
-               struct new_utsname *u = utsname();
+               struct new_utsname *u;
 
+               down_write(&uts_sem);
+               u = utsname();
                memcpy(u->nodename, tmp, len);
                memset(u->nodename + len, 0, sizeof(u->nodename) - len);
                errno = 0;
                uts_proc_notify(UTS_PROC_HOSTNAME);
+               up_write(&uts_sem);
        }
-       up_write(&uts_sem);
        return errno;
 }
 
@@ -1242,8 +1235,9 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, 
len)
 
 SYSCALL_DEFINE2(gethostname, char __user *, name, int, len)
 {
-       int i, errno;
+       int i;
        struct new_utsname *u;
+       char tmp[__NEW_UTS_LEN + 1];
 
        if (len < 0)
                return -EINVAL;
@@ -1252,11 +1246,11 @@ SYSCALL_DEFINE2(gethostname, char __user *, name, int, 
len)
        i = 1 + strlen(u->nodename);
        if (i > len)
                i = len;
-       errno = 0;
-       if (copy_to_user(name, u->nodename, i))
-               errno = -EFAULT;
+       memcpy(tmp, u->nodename, i);
        up_read(&uts_sem);
-       return errno;
+       if (copy_to_user(name, tmp, i))
+               return -EFAULT;
+       return 0;
 }
 
 #endif
@@ -1275,17 +1269,18 @@ SYSCALL_DEFINE2(setdomainname, char __user *, name, 
int, len)
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
 
-       down_write(&uts_sem);
        errno = -EFAULT;
        if (!copy_from_user(tmp, name, len)) {
-               struct new_utsname *u = utsname();
+               struct new_utsname *u;
 
+               down_write(&uts_sem);
+               u = utsname();
                memcpy(u->domainname, tmp, len);
                memset(u->domainname + len, 0, sizeof(u->domainname) - len);
                errno = 0;
                uts_proc_notify(UTS_PROC_DOMAINNAME);
+               up_write(&uts_sem);
        }
-       up_write(&uts_sem);
        return errno;
 }
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 4e17d55ba127..bfa8bb3a6e19 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1720,6 +1720,10 @@ static ssize_t sysfs_blk_trace_attr_store(struct device 
*dev,
        mutex_lock(&bdev->bd_mutex);
 
        if (attr == &dev_attr_enable) {
+               if (!!value == !!q->blk_trace) {
+                       ret = 0;
+                       goto out_unlock_bdev;
+               }
                if (value)
                        ret = blk_trace_setup_queue(q, bdev);
                else
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 148c2210a2b8..a47339b156ce 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6920,7 +6920,9 @@ rb_simple_write(struct file *filp, const char __user 
*ubuf,
 
        if (buffer) {
                mutex_lock(&trace_types_lock);
-               if (val) {
+               if (!!val == tracer_tracing_is_on(tr)) {
+                       val = 0; /* do nothing */
+               } else if (val) {
                        tracer_tracing_on(tr);
                        if (tr->current_trace->start)
                                tr->current_trace->start(tr);
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 788262984818..f0ab801a6437 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -969,7 +969,7 @@ probe_event_disable(struct trace_uprobe *tu, struct 
trace_event_file *file)
 
                list_del_rcu(&link->list);
                /* synchronize with u{,ret}probe_trace_func */
-               synchronize_sched();
+               synchronize_rcu();
                kfree(link);
 
                if (!list_empty(&tu->tp.files))
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 86b7854fec8e..f789bbba9b8e 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -649,7 +649,16 @@ static ssize_t map_write(struct file *file, const char 
__user *buf,
        unsigned idx;
        struct uid_gid_extent *extent = NULL;
        char *kbuf = NULL, *pos, *next_line;
-       ssize_t ret = -EINVAL;
+       ssize_t ret;
+
+       /* Only allow < page size writes at the beginning of the file */
+       if ((*ppos != 0) || (count >= PAGE_SIZE))
+               return -EINVAL;
+
+       /* Slurp in the user data */
+       kbuf = memdup_user_nul(buf, count);
+       if (IS_ERR(kbuf))
+               return PTR_ERR(kbuf);
 
        /*
         * The userns_state_mutex serializes all writes to any given map.
@@ -683,19 +692,6 @@ static ssize_t map_write(struct file *file, const char 
__user *buf,
        if (cap_valid(cap_setid) && !file_ns_capable(file, ns, CAP_SYS_ADMIN))
                goto out;
 
-       /* Only allow < page size writes at the beginning of the file */
-       ret = -EINVAL;
-       if ((*ppos != 0) || (count >= PAGE_SIZE))
-               goto out;
-
-       /* Slurp in the user data */
-       kbuf = memdup_user_nul(buf, count);
-       if (IS_ERR(kbuf)) {
-               ret = PTR_ERR(kbuf);
-               kbuf = NULL;
-               goto out;
-       }
-
        /* Parse the user data */
        ret = -EINVAL;
        pos = kbuf;
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index c8eac43267e9..d2b3b2973456 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -17,7 +17,7 @@
 
 #ifdef CONFIG_PROC_SYSCTL
 
-static void *get_uts(struct ctl_table *table, int write)
+static void *get_uts(struct ctl_table *table)
 {
        char *which = table->data;
        struct uts_namespace *uts_ns;
@@ -25,21 +25,9 @@ static void *get_uts(struct ctl_table *table, int write)
        uts_ns = current->nsproxy->uts_ns;
        which = (which - (char *)&init_uts_ns) + (char *)uts_ns;
 
-       if (!write)
-               down_read(&uts_sem);
-       else
-               down_write(&uts_sem);
        return which;
 }
 
-static void put_uts(struct ctl_table *table, int write, void *which)
-{
-       if (!write)
-               up_read(&uts_sem);
-       else
-               up_write(&uts_sem);
-}
-
 /*
  *     Special case of dostring for the UTS structure. This has locks
  *     to observe. Should this be in kernel/sys.c ????
@@ -49,13 +37,34 @@ static int proc_do_uts_string(struct ctl_table *table, int 
write,
 {
        struct ctl_table uts_table;
        int r;
+       char tmp_data[__NEW_UTS_LEN + 1];
+
        memcpy(&uts_table, table, sizeof(uts_table));
-       uts_table.data = get_uts(table, write);
+       uts_table.data = tmp_data;
+
+       /*
+        * Buffer the value in tmp_data so that proc_dostring() can be called
+        * without holding any locks.
+        * We also need to read the original value in the write==1 case to
+        * support partial writes.
+        */
+       down_read(&uts_sem);
+       memcpy(tmp_data, get_uts(table), sizeof(tmp_data));
+       up_read(&uts_sem);
        r = proc_dostring(&uts_table, write, buffer, lenp, ppos);
-       put_uts(table, write, uts_table.data);
 
-       if (write)
+       if (write) {
+               /*
+                * Write back the new value.
+                * Note that, since we dropped uts_sem, the result can
+                * theoretically be incorrect if there are two parallel writes
+                * at non-zero offsets to the same sysctl.
+                */
+               down_write(&uts_sem);
+               memcpy(get_uts(table), tmp_data, sizeof(tmp_data));
+               up_write(&uts_sem);
                proc_sys_poll_notify(table->poll);
+       }
 
        return r;
 }
diff --git a/mm/memory.c b/mm/memory.c
index 0ff735601654..f3fef1df7402 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -373,15 +373,6 @@ void tlb_remove_table(struct mmu_gather *tlb, void *table)
 {
        struct mmu_table_batch **batch = &tlb->batch;
 
-       /*
-        * When there's less then two users of this mm there cannot be a
-        * concurrent page-table walk.
-        */
-       if (atomic_read(&tlb->mm->mm_users) < 2) {
-               __tlb_remove_table(table);
-               return;
-       }
-
        if (*batch == NULL) {
                *batch = (struct mmu_table_batch *)__get_free_page(GFP_NOWAIT | 
__GFP_NOWARN);
                if (*batch == NULL) {
diff --git a/net/9p/client.c b/net/9p/client.c
index 1fd60190177e..98d299ea52ee 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -931,7 +931,7 @@ static int p9_client_version(struct p9_client *c)
 {
        int err = 0;
        struct p9_req_t *req;
-       char *version;
+       char *version = NULL;
        int msize;
 
        p9_debug(P9_DEBUG_9P, ">>> TVERSION msize %d protocol %d\n",
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 7bc2208b6cc4..2b543532e2f1 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -181,6 +181,8 @@ static void p9_mux_poll_stop(struct p9_conn *m)
        spin_lock_irqsave(&p9_poll_lock, flags);
        list_del_init(&m->poll_pending_link);
        spin_unlock_irqrestore(&p9_poll_lock, flags);
+
+       flush_work(&p9_poll_work);
 }
 
 /**
@@ -937,7 +939,7 @@ p9_fd_create_tcp(struct p9_client *client, const char 
*addr, char *args)
        if (err < 0)
                return err;
 
-       if (valid_ipaddr4(addr) < 0)
+       if (addr == NULL || valid_ipaddr4(addr) < 0)
                return -EINVAL;
 
        csocket = NULL;
@@ -985,6 +987,9 @@ p9_fd_create_unix(struct p9_client *client, const char 
*addr, char *args)
 
        csocket = NULL;
 
+       if (addr == NULL)
+               return -EINVAL;
+
        if (strlen(addr) >= UNIX_PATH_MAX) {
                pr_err("%s (%d): address too long: %s\n",
                       __func__, task_pid_nr(current), addr);
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 553ed4ecb6a0..5a2ad4707463 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -622,6 +622,9 @@ rdma_create_trans(struct p9_client *client, const char 
*addr, char *args)
        struct rdma_conn_param conn_param;
        struct ib_qp_init_attr qp_attr;
 
+       if (addr == NULL)
+               return -EINVAL;
+
        /* Parse the transport specific mount options */
        err = parse_opts(args, &opts);
        if (err < 0)
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 3aa5a93ad107..da0d3b257459 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -189,7 +189,7 @@ static int pack_sg_list(struct scatterlist *sg, int start,
                s = rest_of_page(data);
                if (s > count)
                        s = count;
-               BUG_ON(index > limit);
+               BUG_ON(index >= limit);
                /* Make sure we don't terminate early. */
                sg_unmark_end(&sg[index]);
                sg_set_buf(&sg[index++], data, s);
@@ -234,6 +234,7 @@ pack_sg_list_p(struct scatterlist *sg, int start, int limit,
                s = PAGE_SIZE - data_off;
                if (s > count)
                        s = count;
+               BUG_ON(index >= limit);
                /* Make sure we don't terminate early. */
                sg_unmark_end(&sg[index]);
                sg_set_page(&sg[index++], pdata[i++], s, data_off);
@@ -406,6 +407,7 @@ p9_virtio_zc_request(struct p9_client *client, struct 
p9_req_t *req,
        p9_debug(P9_DEBUG_TRANS, "virtio request\n");
 
        if (uodata) {
+               __le32 sz;
                int n = p9_get_mapped_pages(chan, &out_pages, uodata,
                                            outlen, &offs, &need_drop);
                if (n < 0)
@@ -416,6 +418,12 @@ p9_virtio_zc_request(struct p9_client *client, struct 
p9_req_t *req,
                        memcpy(&req->tc->sdata[req->tc->size - 4], &v, 4);
                        outlen = n;
                }
+               /* The size field of the message must include the length of the
+                * header and the length of the data.  We didn't actually know
+                * the length of the data until this point so add it in now.
+                */
+               sz = cpu_to_le32(req->tc->size + outlen);
+               memcpy(&req->tc->sdata[0], &sz, sizeof(sz));
        } else if (uidata) {
                int n = p9_get_mapped_pages(chan, &in_pages, uidata,
                                            inlen, &offs, &need_drop);
@@ -643,6 +651,9 @@ p9_virtio_create(struct p9_client *client, const char 
*devname, char *args)
        int ret = -ENOENT;
        int found = 0;
 
+       if (devname == NULL)
+               return -EINVAL;
+
        mutex_lock(&virtio_9p_lock);
        list_for_each_entry(chan, &virtio_chan_list, chan_list) {
                if (!strncmp(devname, chan->tag, chan->tag_len) &&
diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
index dbb476d7d38f..50ed47559bb7 100644
--- a/net/ieee802154/6lowpan/tx.c
+++ b/net/ieee802154/6lowpan/tx.c
@@ -266,9 +266,24 @@ netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct 
net_device *ldev)
        /* We must take a copy of the skb before we modify/replace the ipv6
         * header as the header could be used elsewhere
         */
-       skb = skb_unshare(skb, GFP_ATOMIC);
-       if (!skb)
-               return NET_XMIT_DROP;
+       if (unlikely(skb_headroom(skb) < ldev->needed_headroom ||
+                    skb_tailroom(skb) < ldev->needed_tailroom)) {
+               struct sk_buff *nskb;
+
+               nskb = skb_copy_expand(skb, ldev->needed_headroom,
+                                      ldev->needed_tailroom, GFP_ATOMIC);
+               if (likely(nskb)) {
+                       consume_skb(skb);
+                       skb = nskb;
+               } else {
+                       kfree_skb(skb);
+                       return NET_XMIT_DROP;
+               }
+       } else {
+               skb = skb_unshare(skb, GFP_ATOMIC);
+               if (!skb)
+                       return NET_XMIT_DROP;
+       }
 
        ret = lowpan_header(skb, ldev, &dgram_size, &dgram_offset);
        if (ret < 0) {
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 7e253455f9dd..bcd1a5e6ebf4 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -63,8 +63,21 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff 
*skb)
        int ret;
 
        if (!(local->hw.flags & IEEE802154_HW_TX_OMIT_CKSUM)) {
-               u16 crc = crc_ccitt(0, skb->data, skb->len);
+               struct sk_buff *nskb;
+               u16 crc;
+
+               if (unlikely(skb_tailroom(skb) < IEEE802154_FCS_LEN)) {
+                       nskb = skb_copy_expand(skb, 0, IEEE802154_FCS_LEN,
+                                              GFP_ATOMIC);
+                       if (likely(nskb)) {
+                               consume_skb(skb);
+                               skb = nskb;
+                       } else {
+                               goto err_tx;
+                       }
+               }
 
+               crc = crc_ccitt(0, skb->data, skb->len);
                put_unaligned_le16(crc, skb_put(skb, 2));
        }
 
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b2ae4f150ec6..244eac1bd648 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -965,10 +965,20 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt 
*old,
 }
 EXPORT_SYMBOL_GPL(rpc_bind_new_program);
 
+void rpc_task_release_transport(struct rpc_task *task)
+{
+       struct rpc_xprt *xprt = task->tk_xprt;
+
+       if (xprt) {
+               task->tk_xprt = NULL;
+               xprt_put(xprt);
+       }
+}
+EXPORT_SYMBOL_GPL(rpc_task_release_transport);
+
 void rpc_task_release_client(struct rpc_task *task)
 {
        struct rpc_clnt *clnt = task->tk_client;
-       struct rpc_xprt *xprt = task->tk_xprt;
 
        if (clnt != NULL) {
                /* Remove from client task list */
@@ -979,12 +989,14 @@ void rpc_task_release_client(struct rpc_task *task)
 
                rpc_release_client(clnt);
        }
+       rpc_task_release_transport(task);
+}
 
-       if (xprt != NULL) {
-               task->tk_xprt = NULL;
-
-               xprt_put(xprt);
-       }
+static
+void rpc_task_set_transport(struct rpc_task *task, struct rpc_clnt *clnt)
+{
+       if (!task->tk_xprt)
+               task->tk_xprt = xprt_iter_get_next(&clnt->cl_xpi);
 }
 
 static
@@ -992,8 +1004,7 @@ void rpc_task_set_client(struct rpc_task *task, struct 
rpc_clnt *clnt)
 {
 
        if (clnt != NULL) {
-               if (task->tk_xprt == NULL)
-                       task->tk_xprt = xprt_iter_get_next(&clnt->cl_xpi);
+               rpc_task_set_transport(task, clnt);
                task->tk_client = clnt;
                atomic_inc(&clnt->cl_count);
                if (clnt->cl_softrtry)
@@ -1550,6 +1561,7 @@ call_start(struct rpc_task *task)
        task->tk_msg.rpc_proc->p_count++;
        clnt->cl_stats->rpccnt++;
        task->tk_action = call_reserve;
+       rpc_task_set_transport(task, clnt);
 }
 
 /*
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 78bd632f144d..29d015e2d900 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -195,6 +195,9 @@ static int auxtrace_queues__grow(struct auxtrace_queues 
*queues,
        for (i = 0; i < queues->nr_queues; i++) {
                list_splice_tail(&queues->queue_array[i].head,
                                 &queue_array[i].head);
+               queue_array[i].tid = queues->queue_array[i].tid;
+               queue_array[i].cpu = queues->queue_array[i].cpu;
+               queue_array[i].set = queues->queue_array[i].set;
                queue_array[i].priv = queues->queue_array[i].priv;
        }
 

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