Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

38 files changed, 201 insertions, 89 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 61ab1628a057..6726139bd289 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1481,6 +1481,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         By default, super page will be supported if Intel IOMMU
                         has the capability. With this option, super page will
                         not be supported.
+                ecs_off [Default Off]
+                        By default, extended context tables will be supported if
+                        the hardware advertises that it has support both for the
+                        extended tables themselves, and also PASID support. With
+                        this option set, extended tables will not be used even
+                        on hardware which claims to support them.
 
         intel_idle.max_cstate=  [KNL,HW,ACPI,X86]
                         0       disables intel_idle and fall back on acpi_idle.
diff --git a/Documentation/networking/udplite.txt b/Documentation/networking/udplite.txt
index d727a3829100..53a726855e49 100644
--- a/Documentation/networking/udplite.txt
+++ b/Documentation/networking/udplite.txt
@@ -20,7 +20,7 @@
         files/UDP-Lite-HOWTO.txt
 
    o The Wireshark UDP-Lite WiKi (with capture files):
-       http://wiki.wireshark.org/Lightweight_User_Datagram_Protocol
+       https://wiki.wireshark.org/Lightweight_User_Datagram_Protocol
 
    o The Protocol Spec, RFC 3828, http://www.ietf.org/rfc/rfc3828.txt
 
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index 4e8ad0523118..6abebe82d4e9 100644
--- a/arch/blackfin/include/asm/io.h
+++ b/arch/blackfin/include/asm/io.h
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <asm/byteorder.h>
+#include <asm/def_LPBlackfin.h>
 
 #define __raw_readb bfin_read8
 #define __raw_readw bfin_read16
diff --git a/arch/score/lib/string.S b/arch/score/lib/string.S
index 00b7d3a2fc60..16efa3ad037f 100644
--- a/arch/score/lib/string.S
+++ b/arch/score/lib/string.S
@@ -175,10 +175,10 @@ ENTRY(__clear_user)
         br      r3
 
         .section .fixup, "ax"
+99:
         br      r3
         .previous
         .section __ex_table, "a"
         .align  2
-99:
         .word   0b, 99b
         .previous
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 44a7d2515497..b73337634214 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4215,13 +4215,13 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
         u64 entry, gentry, *spte;
         int npte;
         bool remote_flush, local_flush, zap_page;
-        union kvm_mmu_page_role mask = (union kvm_mmu_page_role) {
-                .cr0_wp = 1,
-                .cr4_pae = 1,
-                .nxe = 1,
-                .smep_andnot_wp = 1,
-                .smap_andnot_wp = 1,
-        };
+        union kvm_mmu_page_role mask = { };
+
+        mask.cr0_wp = 1;
+        mask.cr4_pae = 1;
+        mask.nxe = 1;
+        mask.smep_andnot_wp = 1;
+        mask.smap_andnot_wp = 1;
 
         /*
          * If we don't have indirect shadow pages, it means no page is
diff --git a/block/blk-mq.c b/block/blk-mq.c
index e68b71b85a7e..594eea04266e 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1600,6 +1600,7 @@ static int blk_mq_hctx_notify(void *data, unsigned long action,
         return NOTIFY_OK;
 }
 
+/* hctx->ctxs will be freed in queue's release handler */
 static void blk_mq_exit_hctx(struct request_queue *q,
                 struct blk_mq_tag_set *set,
                 struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
@@ -1618,7 +1619,6 @@ static void blk_mq_exit_hctx(struct request_queue *q,
 
         blk_mq_unregister_cpu_notifier(&hctx->cpu_notifier);
         blk_free_flush_queue(hctx->fq);
-        kfree(hctx->ctxs);
         blk_mq_free_bitmap(&hctx->ctx_map);
 }
 
@@ -1891,8 +1891,12 @@ void blk_mq_release(struct request_queue *q)
         unsigned int i;
 
         /* hctx kobj stays in hctx */
-        queue_for_each_hw_ctx(q, hctx, i)
+        queue_for_each_hw_ctx(q, hctx, i) {
+                if (!hctx)
+                        continue;
+                kfree(hctx->ctxs);
                 kfree(hctx);
+        }
 
         kfree(q->queue_hw_ctx);
 
diff --git a/block/genhd.c b/block/genhd.c
index 666e11b83983..ea982eadaf63 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -422,9 +422,9 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt)
         /* allocate ext devt */
         idr_preload(GFP_KERNEL);
 
-        spin_lock(&ext_devt_lock);
+        spin_lock_bh(&ext_devt_lock);
         idx = idr_alloc(&ext_devt_idr, part, 0, NR_EXT_DEVT, GFP_NOWAIT);
-        spin_unlock(&ext_devt_lock);
+        spin_unlock_bh(&ext_devt_lock);
 
         idr_preload_end();
         if (idx < 0)
@@ -449,9 +449,9 @@ void blk_free_devt(dev_t devt)
                 return;
 
         if (MAJOR(devt) == BLOCK_EXT_MAJOR) {
-                spin_lock(&ext_devt_lock);
+                spin_lock_bh(&ext_devt_lock);
                 idr_remove(&ext_devt_idr, blk_mangle_minor(MINOR(devt)));
-                spin_unlock(&ext_devt_lock);
+                spin_unlock_bh(&ext_devt_lock);
         }
 }
 
@@ -690,13 +690,13 @@ struct gendisk *get_gendisk(dev_t devt, int *partno)
         } else {
                 struct hd_struct *part;
 
-                spin_lock(&ext_devt_lock);
+                spin_lock_bh(&ext_devt_lock);
                 part = idr_find(&ext_devt_idr, blk_mangle_minor(MINOR(devt)));
                 if (part && get_disk(part_to_disk(part))) {
                         *partno = part->partno;
                         disk = part_to_disk(part);
                 }
-                spin_unlock(&ext_devt_lock);
+                spin_unlock_bh(&ext_devt_lock);
         }
 
         return disk;
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index eb1fed5bd516..3ccef9eba6f9 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -406,6 +406,7 @@ config BLK_DEV_RAM_DAX
 
 config BLK_DEV_PMEM
         tristate "Persistent memory block device support"
+        depends on HAS_IOMEM
         help
           Saying Y here will allow you to use a contiguous range of reserved
           memory as one or more persistent block devices.
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 8dcbced0eafd..6e134f4759c0 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -805,7 +805,9 @@ static void zram_reset_device(struct zram *zram)
         memset(&zram->stats, 0, sizeof(zram->stats));
         zram->disksize = 0;
         zram->max_comp_streams = 1;
+
         set_capacity(zram->disk, 0);
+        part_stat_set_all(&zram->disk->part0, 0);
 
         up_write(&zram->init_lock);
         /* I/O operation under all of CPU are done so let's free */
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 56e437e31580..ae628001fd97 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -435,7 +435,7 @@ gmbus_xfer(struct i2c_adapter *adapter,
                                                struct intel_gmbus,
                                                adapter);
         struct drm_i915_private *dev_priv = bus->dev_priv;
-        int i, reg_offset;
+        int i = 0, inc, try = 0, reg_offset;
         int ret = 0;
 
         intel_aux_display_runtime_get(dev_priv);
@@ -448,12 +448,14 @@ gmbus_xfer(struct i2c_adapter *adapter,
 
         reg_offset = dev_priv->gpio_mmio_base;
 
+retry:
         I915_WRITE(GMBUS0 + reg_offset, bus->reg0);
 
-        for (i = 0; i < num; i++) {
+        for (; i < num; i += inc) {
+                inc = 1;
                 if (gmbus_is_index_read(msgs, i, num)) {
                         ret = gmbus_xfer_index_read(dev_priv, &msgs[i]);
-                        i += 1;  /* set i to the index of the read xfer */
+                        inc = 2; /* an index read is two msgs */
                 } else if (msgs[i].flags & I2C_M_RD) {
                         ret = gmbus_xfer_read(dev_priv, &msgs[i], 0);
                 } else {
@@ -525,6 +527,18 @@ clear_err:
                          adapter->name, msgs[i].addr,
                          (msgs[i].flags & I2C_M_RD) ? 'r' : 'w', msgs[i].len);
 
+        /*
+         * Passive adapters sometimes NAK the first probe. Retry the first
+         * message once on -ENXIO for GMBUS transfers; the bit banging algorithm
+         * has retries internally. See also the retry loop in
+         * drm_do_probe_ddc_edid, which bails out on the first -ENXIO.
+         */
+        if (ret == -ENXIO && i == 0 && try++ == 0) {
+                DRM_DEBUG_KMS("GMBUS [%s] NAK on first message, retry\n",
+                              adapter->name);
+                goto retry;
+        }
+
         goto out;
 
 timeout:
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index e87d2f418de4..987b81f31b0e 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2550,7 +2550,7 @@ intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
 
         DRM_DEBUG_KMS("initialising analog device %d\n", device);
 
-        intel_sdvo_connector = kzalloc(sizeof(*intel_sdvo_connector), GFP_KERNEL);
+        intel_sdvo_connector = intel_sdvo_connector_alloc();
         if (!intel_sdvo_connector)
                 return false;
 
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index e597ffc26563..dac78ad24b31 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -580,9 +580,6 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                 else
                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 
-                /* if there is no audio, set MINM_OVER_MAXP  */
-                if (!drm_detect_monitor_audio(radeon_connector_edid(connector)))
-                        radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
                 if (rdev->family < CHIP_RV770)
                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
                 /* use frac fb div on APUs */
@@ -1798,9 +1795,7 @@ static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
                         if ((crtc->mode.clock == test_crtc->mode.clock) &&
                             (adjusted_clock == test_adjusted_clock) &&
                             (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
-                            (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID) &&
-                            (drm_detect_monitor_audio(radeon_connector_edid(test_radeon_crtc->connector)) ==
-                             drm_detect_monitor_audio(radeon_connector_edid(radeon_crtc->connector))))
+                            (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
                                 return test_radeon_crtc->pll_id;
                 }
         }
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index b7ca4c514621..a7fdfa4f0857 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1463,6 +1463,21 @@ int radeon_device_init(struct radeon_device *rdev,
         if (r)
                 DRM_ERROR("ib ring test failed (%d).\n", r);
 
+        /*
+         * Turks/Thames GPU will freeze whole laptop if DPM is not restarted
+         * after the CP ring have chew one packet at least. Hence here we stop
+         * and restart DPM after the radeon_ib_ring_tests().
+         */
+        if (rdev->pm.dpm_enabled &&
+            (rdev->pm.pm_method == PM_METHOD_DPM) &&
+            (rdev->family == CHIP_TURKS) &&
+            (rdev->flags & RADEON_IS_MOBILITY)) {
+                mutex_lock(&rdev->pm.mutex);
+                radeon_dpm_disable(rdev);
+                radeon_dpm_enable(rdev);
+                mutex_unlock(&rdev->pm.mutex);
+        }
+
         if ((radeon_testing & 1)) {
                 if (rdev->accel_working)
                         radeon_test_moves(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index de42fc4a22b8..9c3377ca17b7 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -458,14 +458,16 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                 /* make sure object fit at this offset */
                 eoffset = soffset + size;
                 if (soffset >= eoffset) {
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto error_unreserve;
                 }
 
                 last_pfn = eoffset / RADEON_GPU_PAGE_SIZE;
                 if (last_pfn > rdev->vm_manager.max_pfn) {
                         dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n",
                                 last_pfn, rdev->vm_manager.max_pfn);
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto error_unreserve;
                 }
 
         } else {
@@ -486,7 +488,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                                 "(bo %p 0x%010lx 0x%010lx)\n", bo_va->bo,
                                 soffset, tmp->bo, tmp->it.start, tmp->it.last);
                         mutex_unlock(&vm->mutex);
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto error_unreserve;
                 }
         }
 
@@ -497,7 +500,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                         tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
                         if (!tmp) {
                                 mutex_unlock(&vm->mutex);
-                                return -ENOMEM;
+                                r = -ENOMEM;
+                                goto error_unreserve;
                         }
                         tmp->it.start = bo_va->it.start;
                         tmp->it.last = bo_va->it.last;
@@ -555,7 +559,6 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                 r = radeon_vm_clear_bo(rdev, pt);
                 if (r) {
                         radeon_bo_unref(&pt);
-                        radeon_bo_reserve(bo_va->bo, false);
                         return r;
                 }
 
@@ -575,6 +578,10 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 
         mutex_unlock(&vm->mutex);
         return 0;
+
+error_unreserve:
+        radeon_bo_unreserve(bo_va->bo);
+        return r;
 }
 
 /**
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 630af73e98c4..35c8d0ceabee 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -151,6 +151,11 @@ static const struct min_max_quirk min_max_pnpid_table[] = {
                 1024, 5112, 2024, 4832
         },
         {
+                (const char * const []){"LEN2000", NULL},
+                {ANY_BOARD_ID, ANY_BOARD_ID},
+                1024, 5113, 2021, 4832
+        },
+        {
                 (const char * const []){"LEN2001", NULL},
                 {ANY_BOARD_ID, ANY_BOARD_ID},
                 1024, 5022, 2508, 4832
@@ -191,7 +196,7 @@ static const char * const topbuttonpad_pnp_ids[] = {
         "LEN0045",
         "LEN0047",
         "LEN0049",
-        "LEN2000",
+        "LEN2000", /* S540 */
         "LEN2001", /* Edge E431 */
         "LEN2002", /* Edge E531 */
         "LEN2003",
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 2ffe58969944..5ecfaf29933a 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -422,6 +422,14 @@ static int dmar_map_gfx = 1;
 static int dmar_forcedac;
 static int intel_iommu_strict;
 static int intel_iommu_superpage = 1;
+static int intel_iommu_ecs = 1;
+
+/* We only actually use ECS when PASID support (on the new bit 40)
+ * is also advertised. Some early implementations — the ones with
+ * PASID support on bit 28 — have issues even when we *only* use
+ * extended root/context tables. */
+#define ecs_enabled(iommu) (intel_iommu_ecs && ecap_ecs(iommu->ecap) && \
+                            ecap_pasid(iommu->ecap))
 
 int intel_iommu_gfx_mapped;
 EXPORT_SYMBOL_GPL(intel_iommu_gfx_mapped);
@@ -465,6 +473,10 @@ static int __init intel_iommu_setup(char *str)
                         printk(KERN_INFO
                                 "Intel-IOMMU: disable supported super page\n");
                         intel_iommu_superpage = 0;
+                } else if (!strncmp(str, "ecs_off", 7)) {
+                        printk(KERN_INFO
+                                "Intel-IOMMU: disable extended context table support\n");
+                        intel_iommu_ecs = 0;
                 }
 
                 str += strcspn(str, ",");
@@ -669,7 +681,7 @@ static inline struct context_entry *iommu_context_addr(struct intel_iommu *iommu
         struct context_entry *context;
         u64 *entry;
 
-        if (ecap_ecs(iommu->ecap)) {
+        if (ecs_enabled(iommu)) {
                 if (devfn >= 0x80) {
                         devfn -= 0x80;
                         entry = &root->hi;
@@ -806,7 +818,7 @@ static void free_context_table(struct intel_iommu *iommu)
                 if (context)
                         free_pgtable_page(context);
 
-                if (!ecap_ecs(iommu->ecap))
+                if (!ecs_enabled(iommu))
                         continue;
 
                 context = iommu_context_addr(iommu, i, 0x80, 0);
@@ -1141,7 +1153,7 @@ static void iommu_set_root_entry(struct intel_iommu *iommu)
         unsigned long flag;
 
         addr = virt_to_phys(iommu->root_entry);
-        if (ecap_ecs(iommu->ecap))
+        if (ecs_enabled(iommu))
                 addr |= DMA_RTADDR_RTT;
 
         raw_spin_lock_irqsave(&iommu->register_lock, flag);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 27506302eb7a..4dbed4a67aaf 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3834,7 +3834,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
                                 err = -EBUSY;
                 }
                 spin_unlock(&mddev->lock);
-                return err;
+                return err ?: len;
         }
         err = mddev_lock(mddev);
         if (err)
@@ -4217,13 +4217,14 @@ action_store(struct mddev *mddev, const char *page, size_t len)
                         set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
                 else
                         clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
-                flush_workqueue(md_misc_wq);
-                if (mddev->sync_thread) {
-                        set_bit(MD_RECOVERY_INTR, &mddev->recovery);
-                        if (mddev_lock(mddev) == 0) {
+                if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) &&
+                    mddev_lock(mddev) == 0) {
+                        flush_workqueue(md_misc_wq);
+                        if (mddev->sync_thread) {
+                                set_bit(MD_RECOVERY_INTR, &mddev->recovery);
                                 md_reap_sync_thread(mddev);
-                                mddev_unlock(mddev);
                         }
+                        mddev_unlock(mddev);
                 }
         } else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
                    test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))
@@ -8261,6 +8262,7 @@ void md_reap_sync_thread(struct mddev *mddev)
         if (mddev_is_clustered(mddev))
                 md_cluster_ops->metadata_update_finish(mddev);
         clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
+        clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
         clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
         clear_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
         clear_bit(MD_RECOVERY_REQUESTED, &mddev->recovery);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e793ab6b3570..f55c3f35b746 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4156,6 +4156,7 @@ static int raid10_start_reshape(struct mddev *mddev)
 
         clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
         clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
+        clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
         set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
         set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
 
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 553d54b87052..b6793d2e051f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -7354,6 +7354,7 @@ static int raid5_start_reshape(struct mddev *mddev)
 
         clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
         clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
+        clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
         set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
         set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
         mddev->sync_thread = md_register_thread(md_do_sync, mddev,
diff --git a/drivers/net/ethernet/cisco/enic/enic_ethtool.c b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
index 73874b2575bf..f3f1601a76f3 100644
--- a/drivers/net/ethernet/cisco/enic/enic_ethtool.c
+++ b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
@@ -131,8 +131,15 @@ static void enic_get_drvinfo(struct net_device *netdev,
 {
         struct enic *enic = netdev_priv(netdev);
         struct vnic_devcmd_fw_info *fw_info;
+        int err;
 
-        enic_dev_fw_info(enic, &fw_info);
+        err = enic_dev_fw_info(enic, &fw_info);
+        /* return only when pci_zalloc_consistent fails in vnic_dev_fw_info
+         * For other failures, like devcmd failure, we return previously
+         * recorded info.
+         */
+        if (err == -ENOMEM)
+                return;
 
         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
         strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
@@ -181,8 +188,15 @@ static void enic_get_ethtool_stats(struct net_device *netdev,
         struct enic *enic = netdev_priv(netdev);
         struct vnic_stats *vstats;
         unsigned int i;
-
-        enic_dev_stats_dump(enic, &vstats);
+        int err;
+
+        err = enic_dev_stats_dump(enic, &vstats);
+        /* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump
+         * For other failures, like devcmd failure, we return previously
+         * recorded stats.
+         */
+        if (err == -ENOMEM)
+                return;
 
         for (i = 0; i < enic_n_tx_stats; i++)
                 *(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].index];
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 204bd182473b..eadae1b412c6 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -615,8 +615,15 @@ static struct rtnl_link_stats64 *enic_get_stats(struct net_device *netdev,
 {
         struct enic *enic = netdev_priv(netdev);
         struct vnic_stats *stats;
+        int err;
 
-        enic_dev_stats_dump(enic, &stats);
+        err = enic_dev_stats_dump(enic, &stats);
+        /* return only when pci_zalloc_consistent fails in vnic_dev_stats_dump
+         * For other failures, like devcmd failure, we return previously
+         * recorded stats.
+         */
+        if (err == -ENOMEM)
+                return net_stats;
 
         net_stats->tx_packets = stats->tx.tx_frames_ok;
         net_stats->tx_bytes = stats->tx.tx_bytes_ok;
@@ -1407,6 +1414,7 @@ static int enic_poll_msix_rq(struct napi_struct *napi, int budget)
                  */
                 enic_calc_int_moderation(enic, &enic->rq[rq]);
 
+        enic_poll_unlock_napi(&enic->rq[rq]);
         if (work_done < work_to_do) {
 
                 /* Some work done, but not enough to stay in polling,
@@ -1418,7 +1426,6 @@ static int enic_poll_msix_rq(struct napi_struct *napi, int budget)
                         enic_set_int_moderation(enic, &enic->rq[rq]);
                 vnic_intr_unmask(&enic->intr[intr]);
         }
-        enic_poll_unlock_napi(&enic->rq[rq]);
 
         return work_done;
 }
diff --git a/drivers/net/ethernet/cisco/enic/vnic_rq.c b/drivers/net/ethernet/cisco/enic/vnic_rq.c
index 36a2ed606c91..c4b2183bf352 100644
--- a/drivers/net/ethernet/cisco/enic/vnic_rq.c
+++ b/drivers/net/ethernet/cisco/enic/vnic_rq.c
@@ -188,16 +188,15 @@ void vnic_rq_clean(struct vnic_rq *rq,
         struct vnic_rq_buf *buf;
         u32 fetch_index;
         unsigned int count = rq->ring.desc_count;
+        int i;
 
         buf = rq->to_clean;
 
-        while (vnic_rq_desc_used(rq) > 0) {
-
+        for (i = 0; i < rq->ring.desc_count; i++) {
                 (*buf_clean)(rq, buf);
-
-                buf = rq->to_clean = buf->next;
-                rq->ring.desc_avail++;
+                buf = buf->next;
         }
+        rq->ring.desc_avail = rq->ring.desc_count - 1;
 
         /* Use current fetch_index as the ring starting point */
         fetch_index = ioread32(&rq->ctrl->fetch_index);
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index e3b9b63ad010..c3a9392cbc19 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -538,8 +538,8 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp,
                         igb->perout[i].start.tv_nsec = rq->perout.start.nsec;
                         igb->perout[i].period.tv_sec = ts.tv_sec;
                         igb->perout[i].period.tv_nsec = ts.tv_nsec;
-                        wr32(trgttiml, rq->perout.start.sec);
-                        wr32(trgttimh, rq->perout.start.nsec);
+                        wr32(trgttimh, rq->perout.start.sec);
+                        wr32(trgttiml, rq->perout.start.nsec);
                         tsauxc |= tsauxc_mask;
                         tsim |= tsim_mask;
                 } else {
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 796ef9645827..a240e61a7700 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -115,13 +115,14 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
  * Extended Capability Register
  */
 
+#define ecap_pasid(e)           ((e >> 40) & 0x1)
 #define ecap_pss(e)             ((e >> 35) & 0x1f)
 #define ecap_eafs(e)            ((e >> 34) & 0x1)
 #define ecap_nwfs(e)            ((e >> 33) & 0x1)
 #define ecap_srs(e)             ((e >> 31) & 0x1)
 #define ecap_ers(e)             ((e >> 30) & 0x1)
 #define ecap_prs(e)             ((e >> 29) & 0x1)
-#define ecap_pasid(e)           ((e >> 28) & 0x1)
+/* PASID support used to be on bit 28 */
 #define ecap_dis(e)             ((e >> 27) & 0x1)
 #define ecap_nest(e)            ((e >> 26) & 0x1)
 #define ecap_mts(e)             ((e >> 25) & 0x1)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ffeaa4105e48..c2980e8733bc 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2181,7 +2181,7 @@ void task_numa_work(struct callback_head *work)
         }
         for (; vma; vma = vma->vm_next) {
                 if (!vma_migratable(vma) || !vma_policy_mof(vma) ||
-                        is_vm_hugetlb_page(vma)) {
+                        is_vm_hugetlb_page(vma) || (vma->vm_flags & VM_MIXEDMAP)) {
                         continue;
                 }
 
diff --git a/kernel/trace/ring_buffer_benchmark.c b/kernel/trace/ring_buffer_benchmark.c
index 13d945c0d03f..1b28df2d9104 100644
--- a/kernel/trace/ring_buffer_benchmark.c
+++ b/kernel/trace/ring_buffer_benchmark.c
@@ -450,7 +450,7 @@ static int __init ring_buffer_benchmark_init(void)
 
         if (producer_fifo >= 0) {
                 struct sched_param param = {
-                        .sched_priority = consumer_fifo
+                        .sched_priority = producer_fifo
                 };
                 sched_setscheduler(producer, SCHED_FIFO, &param);
         } else
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 14c2f2017e37..a04225d372ba 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2323,6 +2323,8 @@ done_restock:
         css_get_many(&memcg->css, batch);
         if (batch > nr_pages)
                 refill_stock(memcg, batch - nr_pages);
+        if (!(gfp_mask & __GFP_WAIT))
+                goto done;
         /*
          * If the hierarchy is above the normal consumption range,
          * make the charging task trim their excess contribution.
@@ -5833,9 +5835,7 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
         if (!mem_cgroup_is_root(memcg))
                 page_counter_uncharge(&memcg->memory, 1);
 
-        /* XXX: caller holds IRQ-safe mapping->tree_lock */
-        VM_BUG_ON(!irqs_disabled());
-
+        /* Caller disabled preemption with mapping->tree_lock */
         mem_cgroup_charge_statistics(memcg, page, -1);
         memcg_check_events(memcg, page);
 }
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 457bde530cbe..9e88f749aa51 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1969,8 +1969,10 @@ void try_offline_node(int nid)
                  * wait_table may be allocated from boot memory,
                  * here only free if it's allocated by vmalloc.
                  */
-                if (is_vmalloc_addr(zone->wait_table))
+                if (is_vmalloc_addr(zone->wait_table)) {
                         vfree(zone->wait_table);
+                        zone->wait_table = NULL;
+                }
         }
 }
 EXPORT_SYMBOL(try_offline_node);
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 08bd7a3d464a..a8b5e749e84e 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -289,7 +289,8 @@ static int create_handle_cache(struct zs_pool *pool)
 
 static void destroy_handle_cache(struct zs_pool *pool)
 {
-        kmem_cache_destroy(pool->handle_cachep);
+        if (pool->handle_cachep)
+                kmem_cache_destroy(pool->handle_cachep);
 }
 
 static unsigned long alloc_handle(struct zs_pool *pool)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 0b38ee98024b..2e246a1a9b43 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1164,6 +1164,9 @@ static void br_multicast_add_router(struct net_bridge *br,
         struct net_bridge_port *p;
         struct hlist_node *slot = NULL;
 
+        if (!hlist_unhashed(&port->rlist))
+                return;
+
         hlist_for_each_entry(p, &br->router_list, rlist) {
                 if ((unsigned long) port >= (unsigned long) p)
                         break;
@@ -1191,12 +1194,8 @@ static void br_multicast_mark_router(struct net_bridge *br,
         if (port->multicast_router != 1)
                 return;
 
-        if (!hlist_unhashed(&port->rlist))
-                goto timer;
-
         br_multicast_add_router(br, port);
 
-timer:
         mod_timer(&port->multicast_router_timer,
                   now + br->multicast_querier_interval);
 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9bac0e6f8dfa..b6a19ca0f99e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4467,7 +4467,7 @@ struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
 
                 while (order) {
                         if (npages >= 1 << order) {
-                                page = alloc_pages(gfp_mask |
+                                page = alloc_pages((gfp_mask & ~__GFP_WAIT) |
                                                    __GFP_COMP |
                                                    __GFP_NOWARN |
                                                    __GFP_NORETRY,
diff --git a/net/core/sock.c b/net/core/sock.c
index e72633c346b1..7063c329c1b6 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -354,15 +354,12 @@ void sk_clear_memalloc(struct sock *sk)
 
         /*
          * SOCK_MEMALLOC is allowed to ignore rmem limits to ensure forward
-         * progress of swapping. However, if SOCK_MEMALLOC is cleared while
-         * it has rmem allocations there is a risk that the user of the
-         * socket cannot make forward progress due to exceeding the rmem
-         * limits. By rights, sk_clear_memalloc() should only be called
-         * on sockets being torn down but warn and reset the accounting if
-         * that assumption breaks.
+         * progress of swapping. SOCK_MEMALLOC may be cleared while
+         * it has rmem allocations due to the last swapfile being deactivated
+         * but there is a risk that the socket is unusable due to exceeding
+         * the rmem limits. Reclaim the reserves and obey rmem limits again.
          */
-        if (WARN_ON(sk->sk_forward_alloc))
-                sk_mem_reclaim(sk);
+        sk_mem_reclaim(sk);
 }
 EXPORT_SYMBOL_GPL(sk_clear_memalloc);
 
@@ -1872,7 +1869,7 @@ bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t gfp)
 
         pfrag->offset = 0;
         if (SKB_FRAG_PAGE_ORDER) {
-                pfrag->page = alloc_pages(gfp | __GFP_COMP |
+                pfrag->page = alloc_pages((gfp & ~__GFP_WAIT) | __GFP_COMP |
                                           __GFP_NOWARN | __GFP_NORETRY,
                                           SKB_FRAG_PAGE_ORDER);
                 if (likely(pfrag->page)) {
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 41a73da371a9..f2e464eba5ef 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -212,13 +212,13 @@ static int ip6_input_finish(struct sock *sk, struct sk_buff *skb)
          */
 
         rcu_read_lock();
+resubmit:
         idev = ip6_dst_idev(skb_dst(skb));
         if (!pskb_pull(skb, skb_transport_offset(skb)))
                 goto discard;
         nhoff = IP6CB(skb)->nhoff;
         nexthdr = skb_network_header(skb)[nhoff];
 
-resubmit:
         raw = raw6_local_deliver(skb, nexthdr);
         ipprot = rcu_dereference(inet6_protos[nexthdr]);
         if (ipprot) {
@@ -246,12 +246,10 @@ resubmit:
                         goto discard;
 
                 ret = ipprot->handler(skb);
-                if (ret < 0) {
-                        nexthdr = -ret;
+                if (ret > 0)
                         goto resubmit;
-                } else if (ret == 0) {
+                else if (ret == 0)
                         IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDELIVERS);
-                }
         } else {
                 if (!raw) {
                         if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index bff427f31924..1f93a5978f2a 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -564,6 +564,17 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
         case NETDEV_UNREGISTER:
                 mpls_ifdown(dev);
                 break;
+        case NETDEV_CHANGENAME:
+                mdev = mpls_dev_get(dev);
+                if (mdev) {
+                        int err;
+
+                        mpls_dev_sysctl_unregister(mdev);
+                        err = mpls_dev_sysctl_register(dev, mdev);
+                        if (err)
+                                return notifier_from_errno(err);
+                }
+                break;
         }
         return NOTIFY_OK;
 }
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index fb7976aee61c..4f15b7d730e1 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -381,13 +381,14 @@ nomem:
 }
 
 
-/* Public interface to creat the association shared key.
+/* Public interface to create the association shared key.
  * See code above for the algorithm.
  */
 int sctp_auth_asoc_init_active_key(struct sctp_association *asoc, gfp_t gfp)
 {
         struct sctp_auth_bytes  *secret;
         struct sctp_shared_key *ep_key;
+        struct sctp_chunk *chunk;
 
         /* If we don't support AUTH, or peer is not capable
          * we don't need to do anything.
@@ -410,6 +411,14 @@ int sctp_auth_asoc_init_active_key(struct sctp_association *asoc, gfp_t gfp)
         sctp_auth_key_put(asoc->asoc_shared_key);
         asoc->asoc_shared_key = secret;
 
+        /* Update send queue in case any chunk already in there now
+         * needs authenticating
+         */
+        list_for_each_entry(chunk, &asoc->outqueue.out_chunk_list, list) {
+                if (sctp_auth_send_cid(chunk->chunk_hdr->type, asoc))
+                        chunk->auth = 1;
+        }
+
         return 0;
 }
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 30ea82a9b0f1..46b6ed534ef2 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2140,11 +2140,17 @@ static void tipc_sk_timeout(unsigned long data)
         peer_node = tsk_peer_node(tsk);
 
         if (tsk->probing_state == TIPC_CONN_PROBING) {
-                /* Previous probe not answered -> self abort */
-                skb = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE,
-                                      TIPC_CONN_MSG, SHORT_H_SIZE, 0,
-                                      own_node, peer_node, tsk->portid,
-                                      peer_port, TIPC_ERR_NO_PORT);
+                if (!sock_owned_by_user(sk)) {
+                        sk->sk_socket->state = SS_DISCONNECTING;
+                        tsk->connected = 0;
+                        tipc_node_remove_conn(sock_net(sk), tsk_peer_node(tsk),
+                                              tsk_peer_port(tsk));
+                        sk->sk_state_change(sk);
+                } else {
+                        /* Try again later */
+                        sk_reset_timer(sk, &sk->sk_timer, (HZ / 20));
+                }
+
         } else {
                 skb = tipc_msg_create(CONN_MANAGER, CONN_PROBE,
                                       INT_H_SIZE, 0, peer_node, own_node,
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index fff1bef6ed6d..fd682832a0e3 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1333,6 +1333,8 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
         wdev_unlock(wdev);
 
+        memset(&sinfo, 0, sizeof(sinfo));
+
         if (rdev_get_station(rdev, dev, bssid, &sinfo))
                 return NULL;
 
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 89b1df4e72ab..c5ec977b9c37 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3169,12 +3169,12 @@ sub process {
                 }
 
 # check for global initialisers.
-                if ($line =~ /^\+(\s*$Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/) {
+                if ($line =~ /^\+$Type\s*$Ident(?:\s+$Modifier)*\s*=\s*(?:0|NULL|false)\s*;/) {
                         if (ERROR("GLOBAL_INITIALISERS",
                                   "do not initialise globals to 0 or NULL\n" .
                                       $herecurr) &&
                             $fix) {
-                                $fixed[$fixlinenr] =~ s/($Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/$1;/;
+                                $fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(?:\s+$Modifier)*)\s*=\s*(0|NULL|false)\s*;/$1;/;
                         }
                 }
 # check for static initialisers.