path: root/1215_linux-4.9.216.patch

diff --git a/Makefile b/Makefile
index b594484788a8..f0290097784a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 215
+SUBLEVEL = 216
 EXTRAVERSION =
 NAME = Roaring Lionus
 
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index 27133c3a4b12..0de4ba698d1d 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -505,7 +505,7 @@
 		};
 
 		mdio0: mdio@2d24000 {
-			compatible = "fsl,etsec2-mdio";
+			compatible = "gianfar";
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -513,7 +513,7 @@
 		};
 
 		mdio1: mdio@2d64000 {
-			compatible = "fsl,etsec2-mdio";
+			compatible = "gianfar";
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index cab128913e72..3a4014870a91 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -86,6 +86,8 @@ AFLAGS_suspend-imx6.o :=-Wa,-march=armv7-a
 obj-$(CONFIG_SOC_IMX6) += suspend-imx6.o
 obj-$(CONFIG_SOC_IMX53) += suspend-imx53.o
 endif
+AFLAGS_resume-imx6.o :=-Wa,-march=armv7-a
+obj-$(CONFIG_SOC_IMX6) += resume-imx6.o
 obj-$(CONFIG_SOC_IMX6) += pm-imx6.o
 
 obj-$(CONFIG_SOC_IMX1) += mach-imx1.o
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index c4436d9c52ff..a3f6885cefbf 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -112,17 +112,17 @@ void imx_cpu_die(unsigned int cpu);
 int imx_cpu_kill(unsigned int cpu);
 
 #ifdef CONFIG_SUSPEND
-void v7_cpu_resume(void);
 void imx53_suspend(void __iomem *ocram_vbase);
 extern const u32 imx53_suspend_sz;
 void imx6_suspend(void __iomem *ocram_vbase);
 #else
-static inline void v7_cpu_resume(void) {}
 static inline void imx53_suspend(void __iomem *ocram_vbase) {}
 static const u32 imx53_suspend_sz;
 static inline void imx6_suspend(void __iomem *ocram_vbase) {}
 #endif
 
+void v7_cpu_resume(void);
+
 void imx6_pm_ccm_init(const char *ccm_compat);
 void imx6q_pm_init(void);
 void imx6dl_pm_init(void);
diff --git a/arch/arm/mach-imx/resume-imx6.S b/arch/arm/mach-imx/resume-imx6.S
new file mode 100644
index 000000000000..5bd1ba7ef15b
--- /dev/null
+++ b/arch/arm/mach-imx/resume-imx6.S
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/asm-offsets.h>
+#include <asm/hardware/cache-l2x0.h>
+#include "hardware.h"
+
+/*
+ * The following code must assume it is running from physical address
+ * where absolute virtual addresses to the data section have to be
+ * turned into relative ones.
+ */
+
+ENTRY(v7_cpu_resume)
+	bl	v7_invalidate_l1
+#ifdef CONFIG_CACHE_L2X0
+	bl	l2c310_early_resume
+#endif
+	b	cpu_resume
+ENDPROC(v7_cpu_resume)
diff --git a/arch/arm/mach-imx/suspend-imx6.S b/arch/arm/mach-imx/suspend-imx6.S
index 76ee2ceec8d5..7d84b617af48 100644
--- a/arch/arm/mach-imx/suspend-imx6.S
+++ b/arch/arm/mach-imx/suspend-imx6.S
@@ -333,17 +333,3 @@ resume:
 
 	ret	lr
 ENDPROC(imx6_suspend)
-
-/*
- * The following code must assume it is running from physical address
- * where absolute virtual addresses to the data section have to be
- * turned into relative ones.
- */
-
-ENTRY(v7_cpu_resume)
-	bl	v7_invalidate_l1
-#ifdef CONFIG_CACHE_L2X0
-	bl	l2c310_early_resume
-#endif
-	b	cpu_resume
-ENDPROC(v7_cpu_resume)
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 544ea21bfef9..b2683aca401f 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -134,7 +134,7 @@ void release_vpe(struct vpe *v)
 {
 	list_del(&v->list);
 	if (v->load_addr)
-		release_progmem(v);
+		release_progmem(v->load_addr);
 	kfree(v);
 }
 
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 7471ed48f41f..514e04b62261 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -2199,11 +2199,13 @@ static struct cpu_spec * __init setup_cpu_spec(unsigned long offset,
 		 * oprofile_cpu_type already has a value, then we are
 		 * possibly overriding a real PVR with a logical one,
 		 * and, in that case, keep the current value for
-		 * oprofile_cpu_type.
+		 * oprofile_cpu_type. Futhermore, let's ensure that the
+		 * fix for the PMAO bug is enabled on compatibility mode.
 		 */
 		if (old.oprofile_cpu_type != NULL) {
 			t->oprofile_cpu_type = old.oprofile_cpu_type;
 			t->oprofile_type = old.oprofile_type;
+			t->cpu_features |= old.cpu_features & CPU_FTR_PMAO_BUG;
 		}
 	}
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 477df9782fdf..f490a4fab2f7 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -388,7 +388,7 @@ static __always_inline void setup_pku(struct cpuinfo_x86 *c)
 	 * cpuid bit to be set.  We need to ensure that we
 	 * update that bit in this CPU's "cpu_info".
 	 */
-	get_cpu_cap(c);
+	set_cpu_cap(c, X86_FEATURE_OSPKE);
 }
 
 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index aaf2f810d170..b28f45aca2ef 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -538,7 +538,7 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 	lock_sock(sk);
 	tx_nents = skcipher_all_sg_nents(ctx);
 	sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL);
-	if (unlikely(!sreq->tsg))
+	if (unlikely(ZERO_OR_NULL_PTR(sreq->tsg)))
 		goto unlock;
 	sg_init_table(sreq->tsg, tx_nents);
 	memcpy(iv, ctx->iv, ivsize);
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 396e358c2cee..7ef0a0e105e1 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -129,12 +129,11 @@ void __init acpi_watchdog_init(void)
 		gas = &entries[i].register_region;
 
 		res.start = gas->address;
+		res.end = res.start + ACPI_ACCESS_BYTE_WIDTH(gas->access_width) - 1;
 		if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 			res.flags = IORESOURCE_MEM;
-			res.end = res.start + ALIGN(gas->access_width, 4) - 1;
 		} else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
 			res.flags = IORESOURCE_IO;
-			res.end = res.start + gas->access_width - 1;
 		} else {
 			pr_warn("Unsupported address space: %u\n",
 				gas->space_id);
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 996b9ae15404..a4ef9a6bd367 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -746,10 +746,14 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
 	flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
 	msg = ssif_info->curr_msg;
 	if (msg) {
+		if (data) {
+			if (len > IPMI_MAX_MSG_LENGTH)
+				len = IPMI_MAX_MSG_LENGTH;
+			memcpy(msg->rsp, data, len);
+		} else {
+			len = 0;
+		}
 		msg->rsp_size = len;
-		if (msg->rsp_size > IPMI_MAX_MSG_LENGTH)
-			msg->rsp_size = IPMI_MAX_MSG_LENGTH;
-		memcpy(msg->rsp, data, msg->rsp_size);
 		ssif_info->curr_msg = NULL;
 	}
 
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 6d7d2d54eacf..f0932f25a9b1 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -1944,8 +1944,6 @@ static void dma_tc_handle(struct coh901318_chan *cohc)
 		return;
 	}
 
-	spin_lock(&cohc->lock);
-
 	/*
 	 * When we reach this point, at least one queue item
 	 * should have been moved over from cohc->queue to
@@ -1966,8 +1964,6 @@ static void dma_tc_handle(struct coh901318_chan *cohc)
 	if (coh901318_queue_start(cohc) == NULL)
 		cohc->busy = 0;
 
-	spin_unlock(&cohc->lock);
-
 	/*
 	 * This tasklet will remove items from cohc->active
 	 * and thus terminates them.
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 22f7f0c68a48..4eaf92b2b886 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -288,7 +288,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get(
 
 	/* Do not allocate if desc are waiting for ack */
 	list_for_each_entry(dma_desc, &tdc->free_dma_desc, node) {
-		if (async_tx_test_ack(&dma_desc->txd)) {
+		if (async_tx_test_ack(&dma_desc->txd) && !dma_desc->cb_count) {
 			list_del(&dma_desc->node);
 			spin_unlock_irqrestore(&tdc->lock, flags);
 			dma_desc->txd.flags = 0;
@@ -755,10 +755,6 @@ static int tegra_dma_terminate_all(struct dma_chan *dc)
 	bool was_busy;
 
 	spin_lock_irqsave(&tdc->lock, flags);
-	if (list_empty(&tdc->pending_sg_req)) {
-		spin_unlock_irqrestore(&tdc->lock, flags);
-		return 0;
-	}
 
 	if (!tdc->busy)
 		goto skip_dma_stop;
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index c8d1f19c9a6d..d46b9e75a847 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -306,7 +306,7 @@ static int dsi_mgr_connector_get_modes(struct drm_connector *connector)
 	return num;
 }
 
-static int dsi_mgr_connector_mode_valid(struct drm_connector *connector,
+static enum drm_mode_status dsi_mgr_connector_mode_valid(struct drm_connector *connector,
 				struct drm_display_mode *mode)
 {
 	int id = dsi_mgr_connector_get_id(connector);
@@ -438,6 +438,7 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
 	struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
 	struct mipi_dsi_host *host = msm_dsi->host;
 	struct drm_panel *panel = msm_dsi->panel;
+	struct msm_dsi_pll *src_pll;
 	bool is_dual_dsi = IS_DUAL_DSI();
 	int ret;
 
@@ -471,6 +472,10 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
 								id, ret);
 	}
 
+	/* Save PLL status if it is a clock source */
+	src_pll = msm_dsi_phy_get_pll(msm_dsi->phy);
+	msm_dsi_pll_save_state(src_pll);
+
 	ret = msm_dsi_host_power_off(host);
 	if (ret)
 		pr_err("%s: host %d power off failed,%d\n", __func__, id, ret);
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 6abf315fd6da..ce32f41fc28a 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -396,6 +396,14 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
 	if (ret)
 		goto fail;
 
+	if (!dev->dma_parms) {
+		dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
+					      GFP_KERNEL);
+		if (!dev->dma_parms)
+			return -ENOMEM;
+	}
+	dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
+
 	msm_gem_shrinker_init(ddev);
 
 	switch (get_mdp_ver(pdev)) {
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e382d6f23097..b4b9d8152536 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1547,7 +1547,9 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
 
 	rsize = ((report->size - 1) >> 3) + 1;
 
-	if (rsize > HID_MAX_BUFFER_SIZE)
+	if (report_enum->numbered && rsize >= HID_MAX_BUFFER_SIZE)
+		rsize = HID_MAX_BUFFER_SIZE - 1;
+	else if (rsize > HID_MAX_BUFFER_SIZE)
 		rsize = HID_MAX_BUFFER_SIZE;
 
 	if (csize < rsize) {
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 8903ea09ac58..dbdd265075da 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -962,9 +962,9 @@ void hiddev_disconnect(struct hid_device *hid)
 	hiddev->exist = 0;
 
 	if (hiddev->open) {
-		mutex_unlock(&hiddev->existancelock);
 		usbhid_close(hiddev->hid);
 		wake_up_interruptible(&hiddev->wait);
+		mutex_unlock(&hiddev->existancelock);
 	} else {
 		mutex_unlock(&hiddev->existancelock);
 		kfree(hiddev);
diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c
index 5929e126da63..d9923d63eb4f 100644
--- a/drivers/hwmon/adt7462.c
+++ b/drivers/hwmon/adt7462.c
@@ -426,7 +426,7 @@ static int ADT7462_REG_VOLT(struct adt7462_data *data, int which)
 			return 0x95;
 		break;
 	}
-	return -ENODEV;
+	return 0;
 }
 
 /* Provide labels for sysfs */
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
index 30132c3957cd..41ca9ff7b5da 100644
--- a/drivers/i2c/busses/i2c-jz4780.c
+++ b/drivers/i2c/busses/i2c-jz4780.c
@@ -82,25 +82,6 @@
 #define JZ4780_I2C_STA_TFNF		BIT(1)
 #define JZ4780_I2C_STA_ACT		BIT(0)
 
-static const char * const jz4780_i2c_abrt_src[] = {
-	"ABRT_7B_ADDR_NOACK",
-	"ABRT_10ADDR1_NOACK",
-	"ABRT_10ADDR2_NOACK",
-	"ABRT_XDATA_NOACK",
-	"ABRT_GCALL_NOACK",
-	"ABRT_GCALL_READ",
-	"ABRT_HS_ACKD",
-	"SBYTE_ACKDET",
-	"ABRT_HS_NORSTRT",
-	"SBYTE_NORSTRT",
-	"ABRT_10B_RD_NORSTRT",
-	"ABRT_MASTER_DIS",
-	"ARB_LOST",
-	"SLVFLUSH_TXFIFO",
-	"SLV_ARBLOST",
-	"SLVRD_INTX",
-};
-
 #define JZ4780_I2C_INTST_IGC		BIT(11)
 #define JZ4780_I2C_INTST_ISTT		BIT(10)
 #define JZ4780_I2C_INTST_ISTP		BIT(9)
@@ -538,21 +519,8 @@ done:
 
 static void jz4780_i2c_txabrt(struct jz4780_i2c *i2c, int src)
 {
-	int i;
-
-	dev_err(&i2c->adap.dev, "txabrt: 0x%08x\n", src);
-	dev_err(&i2c->adap.dev, "device addr=%x\n",
-		jz4780_i2c_readw(i2c, JZ4780_I2C_TAR));
-	dev_err(&i2c->adap.dev, "send cmd count:%d  %d\n",
-		i2c->cmd, i2c->cmd_buf[i2c->cmd]);
-	dev_err(&i2c->adap.dev, "receive data count:%d  %d\n",
-		i2c->cmd, i2c->data_buf[i2c->cmd]);
-
-	for (i = 0; i < 16; i++) {
-		if (src & BIT(i))
-			dev_dbg(&i2c->adap.dev, "I2C TXABRT[%d]=%s\n",
-				i, jz4780_i2c_abrt_src[i]);
-	}
+	dev_dbg(&i2c->adap.dev, "txabrt: 0x%08x, cmd: %d, send: %d, recv: %d\n",
+		src, i2c->cmd, i2c->cmd_buf[i2c->cmd], i2c->data_buf[i2c->cmd]);
 }
 
 static inline int jz4780_i2c_xfer_read(struct jz4780_i2c *i2c,
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 71c7c4c328ef..304429fd04dd 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1073,6 +1073,7 @@ struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device,
 			/* Sharing an ib_cm_id with different handlers is not
 			 * supported */
 			spin_unlock_irqrestore(&cm.lock, flags);
+			ib_destroy_cm_id(cm_id);
 			return ERR_PTR(-EINVAL);
 		}
 		atomic_inc(&cm_id_priv->refcount);
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index 5495e22839a7..1f71c306923f 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -137,8 +137,10 @@ static void dealloc_work_entries(struct iwcm_id_private *cm_id_priv)
 {
 	struct list_head *e, *tmp;
 
-	list_for_each_safe(e, tmp, &cm_id_priv->work_free_list)
+	list_for_each_safe(e, tmp, &cm_id_priv->work_free_list) {
+		list_del(e);
 		kfree(list_entry(e, struct iwcm_work, free_list));
+	}
 }
 
 static int alloc_work_entries(struct iwcm_id_private *cm_id_priv, int count)
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 58b97226050f..1b7d77080d6b 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2192,8 +2192,8 @@ static void wait_for_migrations(struct cache *cache)
 
 static void stop_worker(struct cache *cache)
 {
-	cancel_delayed_work(&cache->waker);
-	flush_workqueue(cache->wq);
+	cancel_delayed_work_sync(&cache->waker);
+	drain_workqueue(cache->wq);
 }
 
 static void requeue_deferred_cells(struct cache *cache)
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index 912dc09bc7a7..905911f78693 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -199,6 +199,11 @@ static inline void comp_ctxt_release(struct ena_com_admin_queue *queue,
 static struct ena_comp_ctx *get_comp_ctxt(struct ena_com_admin_queue *queue,
 					  u16 command_id, bool capture)
 {
+	if (unlikely(!queue->comp_ctx)) {
+		pr_err("Completion context is NULL\n");
+		return NULL;
+	}
+
 	if (unlikely(command_id >= queue->q_depth)) {
 		pr_err("command id is larger than the queue size. cmd_id: %u queue size %d\n",
 		       command_id, queue->q_depth);
@@ -839,6 +844,24 @@ static int ena_com_get_feature(struct ena_com_dev *ena_dev,
 				      0);
 }
 
+static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev)
+{
+	struct ena_admin_feature_rss_flow_hash_control *hash_key =
+		(ena_dev->rss).hash_key;
+
+	netdev_rss_key_fill(&hash_key->key, sizeof(hash_key->key));
+	/* The key is stored in the device in u32 array
+	 * as well as the API requires the key to be passed in this
+	 * format. Thus the size of our array should be divided by 4
+	 */
+	hash_key->keys_num = sizeof(hash_key->key) / sizeof(u32);
+}
+
+int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev)
+{
+	return ena_dev->rss.hash_func;
+}
+
 static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev)
 {
 	struct ena_rss *rss = &ena_dev->rss;
@@ -2034,15 +2057,16 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
 
 	switch (func) {
 	case ENA_ADMIN_TOEPLITZ:
-		if (key_len > sizeof(hash_key->key)) {
-			pr_err("key len (%hu) is bigger than the max supported (%zu)\n",
-			       key_len, sizeof(hash_key->key));
-			return -EINVAL;
+		if (key) {
+			if (key_len != sizeof(hash_key->key)) {
+				pr_err("key len (%hu) doesn't equal the supported size (%zu)\n",
+				       key_len, sizeof(hash_key->key));
+				return -EINVAL;
+			}
+			memcpy(hash_key->key, key, key_len);
+			rss->hash_init_val = init_val;
+			hash_key->keys_num = key_len >> 2;
 		}
-
-		memcpy(hash_key->key, key, key_len);
-		rss->hash_init_val = init_val;
-		hash_key->keys_num = key_len >> 2;
 		break;
 	case ENA_ADMIN_CRC32:
 		rss->hash_init_val = init_val;
@@ -2079,7 +2103,11 @@ int ena_com_get_hash_function(struct ena_com_dev *ena_dev,
 	if (unlikely(rc))
 		return rc;
 
-	rss->hash_func = get_resp.u.flow_hash_func.selected_func;
+	/* ffs() returns 1 in case the lsb is set */
+	rss->hash_func = ffs(get_resp.u.flow_hash_func.selected_func);
+	if (rss->hash_func)
+		rss->hash_func--;
+
 	if (func)
 		*func = rss->hash_func;
 
@@ -2366,6 +2394,8 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 indr_tbl_log_size)
 	if (unlikely(rc))
 		goto err_hash_key;
 
+	ena_com_hash_key_fill_default_key(ena_dev);
+
 	rc = ena_com_hash_ctrl_init(ena_dev);
 	if (unlikely(rc))
 		goto err_hash_ctrl;
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index 509d7b8e15ab..98b2ad20f599 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -41,6 +41,7 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/wait.h>
+#include <linux/netdevice.h>
 
 #include "ena_common_defs.h"
 #include "ena_admin_defs.h"
@@ -622,6 +623,14 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size);
  */
 void ena_com_rss_destroy(struct ena_com_dev *ena_dev);
 
+/* ena_com_get_current_hash_function - Get RSS hash function
+ * @ena_dev: ENA communication layer struct
+ *
+ * Return the current hash function.
+ * @return: 0 or one of the ena_admin_hash_functions values.
+ */
+int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev);
+
 /* ena_com_fill_hash_function - Fill RSS hash function
  * @ena_dev: ENA communication layer struct
  * @func: The hash function (Toeplitz or crc)
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index 06fd061a20e9..0ef0a7b75751 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -651,6 +651,28 @@ static u32 ena_get_rxfh_key_size(struct net_device *netdev)
 	return ENA_HASH_KEY_SIZE;
 }
 
+static int ena_indirection_table_get(struct ena_adapter *adapter, u32 *indir)
+{
+	struct ena_com_dev *ena_dev = adapter->ena_dev;
+	int i, rc;
+
+	if (!indir)
+		return 0;
+
+	rc = ena_com_indirect_table_get(ena_dev, indir);
+	if (rc)
+		return rc;
+
+	/* Our internal representation of the indices is: even indices
+	 * for Tx and uneven indices for Rx. We need to convert the Rx
+	 * indices to be consecutive
+	 */
+	for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++)
+		indir[i] = ENA_IO_RXQ_IDX_TO_COMBINED_IDX(indir[i]);
+
+	return rc;
+}
+
 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
 			u8 *hfunc)
 {
@@ -659,11 +681,25 @@ static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
 	u8 func;
 	int rc;
 
-	rc = ena_com_indirect_table_get(adapter->ena_dev, indir);
+	rc = ena_indirection_table_get(adapter, indir);
 	if (rc)
 		return rc;
 
+	/* We call this function in order to check if the device
+	 * supports getting/setting the hash function.
+	 */
 	rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
+
+	if (rc) {
+		if (rc == -EOPNOTSUPP) {
+			key = NULL;
+			hfunc = NULL;
+			rc = 0;
+		}
+
+		return rc;
+	}
+
 	if (rc)
 		return rc;
 
@@ -715,6 +751,9 @@ static int ena_set_rxfh(struct net_device *netdev, const u32 *indir,
 	}
 
 	switch (hfunc) {
+	case ETH_RSS_HASH_NO_CHANGE:
+		func = ena_com_get_current_hash_function(ena_dev);
+		break;
 	case ETH_RSS_HASH_TOP:
 		func = ENA_ADMIN_TOEPLITZ;
 		break;
@@ -819,6 +858,7 @@ static const struct ethtool_ops ena_ethtool_ops = {
 	.get_channels		= ena_get_channels,
 	.get_tunable		= ena_get_tunable,
 	.set_tunable		= ena_set_tunable,
+	.get_ts_info            = ethtool_op_get_ts_info,
 };
 
 void ena_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h
index 008f2d594d40..326c2e1437b3 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.h
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h
@@ -110,6 +110,8 @@
 
 #define ENA_IO_TXQ_IDX(q)	(2 * (q))
 #define ENA_IO_RXQ_IDX(q)	(2 * (q) + 1)
+#define ENA_IO_TXQ_IDX_TO_COMBINED_IDX(q)	((q) / 2)
+#define ENA_IO_RXQ_IDX_TO_COMBINED_IDX(q)	(((q) - 1) / 2)
 
 #define ENA_MGMNT_IRQ_IDX		0
 #define ENA_IO_IRQ_FIRST_IDX		1
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index de4b5d267c30..17c07837033f 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -1711,7 +1711,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
 	int ret;
 
 	ndev = alloc_etherdev_mqs(sizeof(struct xgene_enet_pdata),
-				  XGENE_NUM_RX_RING, XGENE_NUM_TX_RING);
+				  XGENE_NUM_TX_RING, XGENE_NUM_RX_RING);
 	if (!ndev)
 		return -ENOMEM;
 
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index 8dc1f0277117..d94e151cff12 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -474,24 +474,6 @@ static int msg_enable;
  * chip is busy transferring packet data (RX/TX FIFO accesses).
  */
 
-/**
- * ks_rdreg8 - read 8 bit register from device
- * @ks	  : The chip information
- * @offset: The register address
- *
- * Read a 8bit register from the chip, returning the result
- */
-static u8 ks_rdreg8(struct ks_net *ks, int offset)
-{
-	u16 data;
-	u8 shift_bit = offset & 0x03;
-	u8 shift_data = (offset & 1) << 3;
-	ks->cmd_reg_cache = (u16) offset | (u16)(BE0 << shift_bit);
-	iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd);
-	data  = ioread16(ks->hw_addr);
-	return (u8)(data >> shift_data);
-}
-
 /**
  * ks_rdreg16 - read 16 bit register from device
  * @ks	  : The chip information
@@ -502,27 +484,11 @@ static u8 ks_rdreg8(struct ks_net *ks, int offset)
 
 static u16 ks_rdreg16(struct ks_net *ks, int offset)
 {
-	ks->cmd_reg_cache = (u16)offset | ((BE1 | BE0) << (offset & 0x02));
+	ks->cmd_reg_cache = (u16)offset | ((BE3 | BE2) >> (offset & 0x02));
 	iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd);
 	return ioread16(ks->hw_addr);
 }
 
-/**
- * ks_wrreg8 - write 8bit register value to chip
- * @ks: The chip information
- * @offset: The register address
- * @value: The value to write
- *
- */
-static void ks_wrreg8(struct ks_net *ks, int offset, u8 value)
-{
-	u8  shift_bit = (offset & 0x03);
-	u16 value_write = (u16)(value << ((offset & 1) << 3));
-	ks->cmd_reg_cache = (u16)offset | (BE0 << shift_bit);
-	iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd);
-	iowrite16(value_write, ks->hw_addr);
-}
-
 /**
  * ks_wrreg16 - write 16bit register value to chip
  * @ks: The chip information
@@ -533,7 +499,7 @@ static void ks_wrreg8(struct ks_net *ks, int offset, u8 value)
 
 static void ks_wrreg16(struct ks_net *ks, int offset, u16 value)
 {
-	ks->cmd_reg_cache = (u16)offset | ((BE1 | BE0) << (offset & 0x02));
+	ks->cmd_reg_cache = (u16)offset | ((BE3 | BE2) >> (offset & 0x02));
 	iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd);
 	iowrite16(value, ks->hw_addr);
 }
@@ -549,7 +515,7 @@ static inline void ks_inblk(struct ks_net *ks, u16 *wptr, u32 len)
 {
 	len >>= 1;
 	while (len--)
-		*wptr++ = (u16)ioread16(ks->hw_addr);
+		*wptr++ = be16_to_cpu(ioread16(ks->hw_addr));
 }
 
 /**
@@ -563,7 +529,7 @@ static inline void ks_outblk(struct ks_net *ks, u16 *wptr, u32 len)
 {
 	len >>= 1;
 	while (len--)
-		iowrite16(*wptr++, ks->hw_addr);
+		iowrite16(cpu_to_be16(*wptr++), ks->hw_addr);
 }
 
 static void ks_disable_int(struct ks_net *ks)
@@ -642,8 +608,7 @@ static void ks_read_config(struct ks_net *ks)
 	u16 reg_data = 0;
 
 	/* Regardless of bus width, 8 bit read should always work.*/
-	reg_data = ks_rdreg8(ks, KS_CCR) & 0x00FF;
-	reg_data |= ks_rdreg8(ks, KS_CCR+1) << 8;
+	reg_data = ks_rdreg16(ks, KS_CCR);
 
 	/* addr/data bus are multiplexed */
 	ks->sharedbus = (reg_data & CCR_SHARED) == CCR_SHARED;
@@ -747,7 +712,7 @@ static inline void ks_read_qmu(struct ks_net *ks, u16 *buf, u32 len)
 
 	/* 1. set sudo DMA mode */
 	ks_wrreg16(ks, KS_RXFDPR, RXFDPR_RXFPAI);
-	ks_wrreg8(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_SDA) & 0xff);
+	ks_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA);
 
 	/* 2. read prepend data */
 	/**
@@ -764,7 +729,7 @@ static inline void ks_read_qmu(struct ks_net *ks, u16 *buf, u32 len)
 	ks_inblk(ks, buf, ALIGN(len, 4));
 
 	/* 4. reset sudo DMA Mode */
-	ks_wrreg8(ks, KS_RXQCR, ks->rc_rxqcr);
+	ks_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
 }
 
 /**
@@ -997,13 +962,13 @@ static void ks_write_qmu(struct ks_net *ks, u8 *pdata, u16 len)
 	ks->txh.txw[1] = cpu_to_le16(len);
 
 	/* 1. set sudo-DMA mode */
-	ks_wrreg8(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_SDA) & 0xff);
+	ks_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA);
 	/* 2. write status/lenth info */
 	ks_outblk(ks, ks->txh.txw, 4);
 	/* 3. write pkt data */
 	ks_outblk(ks, (u16 *)pdata, ALIGN(len, 4));
 	/* 4. reset sudo-DMA mode */
-	ks_wrreg8(ks, KS_RXQCR, ks->rc_rxqcr);
+	ks_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr);
 	/* 5. Enqueue Tx(move the pkt from TX buffer into TXQ) */
 	ks_wrreg16(ks, KS_TXQCR, TXQCR_METFE);
 	/* 6. wait until TXQCR_METFE is auto-cleared */
diff --git a/drivers/net/phy/mdio-bcm-iproc.c b/drivers/net/phy/mdio-bcm-iproc.c
index 46fe1ae919a3..51ce3ea17fb3 100644
--- a/drivers/net/phy/mdio-bcm-iproc.c
+++ b/drivers/net/phy/mdio-bcm-iproc.c
@@ -188,6 +188,23 @@ static int iproc_mdio_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+int iproc_mdio_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct iproc_mdio_priv *priv = platform_get_drvdata(pdev);
+
+	/* restore the mii clock configuration */
+	iproc_mdio_config_clk(priv->base);
+
+	return 0;
+}
+
+static const struct dev_pm_ops iproc_mdio_pm_ops = {
+	.resume = iproc_mdio_resume
+};
+#endif /* CONFIG_PM_SLEEP */
+
 static const struct of_device_id iproc_mdio_of_match[] = {
 	{ .compatible = "brcm,iproc-mdio", },
 	{ /* sentinel */ },
@@ -198,6 +215,9 @@ static struct platform_driver iproc_mdio_driver = {
 	.driver = {
 		.name = "iproc-mdio",
 		.of_match_table = iproc_mdio_of_match,
+#ifdef CONFIG_PM_SLEEP
+		.pm = &iproc_mdio_pm_ops,
+#endif
 	},
 	.probe = iproc_mdio_probe,
 	.remove = iproc_mdio_remove,
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index 2af09c3851a5..cc841126147e 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -868,7 +868,6 @@ err_free_chan:
 	tty->disc_data = NULL;
 	clear_bit(SLF_INUSE, &sl->flags);
 	sl_free_netdev(sl->dev);
-	free_netdev(sl->dev);
 
 err_exit:
 	rtnl_unlock();
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 17be1f6a813f..44b16d945e33 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1106,6 +1106,13 @@ static void tun_net_init(struct net_device *dev)
 	}
 }
 
+static bool tun_sock_writeable(struct tun_struct *tun, struct tun_file *tfile)
+{
+	struct sock *sk = tfile->socket.sk;
+
+	return (tun->dev->flags & IFF_UP) && sock_writeable(sk);
+}
+
 /* Character device part */
 
 /* Poll */
@@ -1128,10 +1135,14 @@ static unsigned int tun_chr_poll(struct file *file, poll_table *wait)
 	if (!skb_array_empty(&tfile->tx_array))
 		mask |= POLLIN | POLLRDNORM;
 
-	if (tun->dev->flags & IFF_UP &&
-	    (sock_writeable(sk) ||
-	     (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
-	      sock_writeable(sk))))
+	/* Make sure SOCKWQ_ASYNC_NOSPACE is set if not writable to
+	 * guarantee EPOLLOUT to be raised by either here or
+	 * tun_sock_write_space(). Then process could get notification
+	 * after it writes to a down device and meets -EIO.
+	 */
+	if (tun_sock_writeable(tun, tfile) ||
+	    (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
+	     tun_sock_writeable(tun, tfile)))
 		mask |= POLLOUT | POLLWRNORM;
 
 	if (tun->dev->reg_state != NETREG_REGISTERED)
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index de7b431fdd6b..97f6b8130db3 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -951,6 +951,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x413c, 0x81b6, 8)},	/* Dell Wireless 5811e */
 	{QMI_FIXED_INTF(0x413c, 0x81b6, 10)},	/* Dell Wireless 5811e */
 	{QMI_FIXED_INTF(0x413c, 0x81d7, 0)},	/* Dell Wireless 5821e */
+	{QMI_FIXED_INTF(0x413c, 0x81d7, 1)},	/* Dell Wireless 5821e preproduction config */
 	{QMI_FIXED_INTF(0x413c, 0x81e0, 0)},	/* Dell Wireless 5821e with eSIM support*/
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)},	/* HP lt4120 Snapdragon X5 LTE */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index a2ebe46bcfc5..395bbe2c0f98 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -898,9 +898,13 @@ int iwl_pcie_rx_init(struct iwl_trans *trans)
 			return err;
 	}
 	def_rxq = trans_pcie->rxq;
-	if (!rba->alloc_wq)
+	if (!rba->alloc_wq) {
 		rba->alloc_wq = alloc_workqueue("rb_allocator",
 						WQ_HIGHPRI | WQ_UNBOUND, 1);
+		if (!rba->alloc_wq)
+			return -ENOMEM;
+	}
+
 	INIT_WORK(&rba->rx_alloc, iwl_pcie_rx_allocator_work);
 
 	cancel_work_sync(&rba->rx_alloc);
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index f837c39a8017..0f6905123b0a 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -240,6 +240,7 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
 
 out:
 	gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
+	usleep_range(10000, 15000);
 }
 
 static void pn544_hci_i2c_enable_mode(struct pn544_i2c_phy *phy, int run_mode)
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index 9082476b51db..4e9f794176d3 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -302,8 +302,10 @@ static void *
 cio_ignore_proc_seq_next(struct seq_file *s, void *it, loff_t *offset)
 {
 	struct ccwdev_iter *iter;
+	loff_t p = *offset;
 
-	if (*offset >= (__MAX_SUBCHANNEL + 1) * (__MAX_SSID + 1))
+	(*offset)++;
+	if (p >= (__MAX_SUBCHANNEL + 1) * (__MAX_SSID + 1))
 		return NULL;
 	iter = it;
 	if (iter->devno == __MAX_SUBCHANNEL) {
@@ -313,7 +315,6 @@ cio_ignore_proc_seq_next(struct seq_file *s, void *it, loff_t *offset)
 			return NULL;
 	} else
 		iter->devno++;
-	(*offset)++;
 	return iter;
 }
 
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index e8819aa20415..c4e9eba36023 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -181,7 +181,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 	struct hlist_head *h;
 	struct hlist_node *n;
 	struct irq_info *i;
-	int ret, irq_flags = up->port.flags & UPF_SHARE_IRQ ? IRQF_SHARED : 0;
+	int ret;
 
 	mutex_lock(&hash_mutex);
 
@@ -216,9 +216,8 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 		INIT_LIST_HEAD(&up->list);
 		i->head = &up->list;
 		spin_unlock_irq(&i->lock);
-		irq_flags |= up->port.irqflags;
 		ret = request_irq(up->port.irq, serial8250_interrupt,
-				  irq_flags, "serial", i);
+				  up->port.irqflags, "serial", i);
 		if (ret < 0)
 			serial_do_unlink(i, up);
 	}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 8f1233324586..c7a7574172fa 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2199,6 +2199,10 @@ int serial8250_do_startup(struct uart_port *port)
 		}
 	}
 
+	/* Check if we need to have shared IRQs */
+	if (port->irq && (up->port.flags & UPF_SHARE_IRQ))
+		up->port.irqflags |= IRQF_SHARED;
+
 	if (port->irq) {
 		unsigned char iir1;
 		/*
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index d4462512605b..246f4aab7407 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -289,6 +289,10 @@ static void ar933x_uart_set_termios(struct uart_port *port,
 	ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
 			    AR933X_UART_CS_HOST_INT_EN);
 
+	/* enable RX and TX ready overide */
+	ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
+		AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE);
+
 	/* reenable the UART */
 	ar933x_uart_rmw(up, AR933X_UART_CS_REG,
 			AR933X_UART_CS_IF_MODE_M << AR933X_UART_CS_IF_MODE_S,
@@ -421,6 +425,10 @@ static int ar933x_uart_startup(struct uart_port *port)
 	ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
 			    AR933X_UART_CS_HOST_INT_EN);
 
+	/* enable RX and TX ready overide */
+	ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
+		AR933X_UART_CS_TX_READY_ORIDE | AR933X_UART_CS_RX_READY_ORIDE);
+
 	/* Enable RX interrupts */
 	up->ier = AR933X_UART_INT_RX_VALID;
 	ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 401c983ec5f3..a10e4aa9e18e 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -581,7 +581,7 @@ static int mvebu_uart_probe(struct platform_device *pdev)
 
 	port->membase = devm_ioremap_resource(&pdev->dev, reg);
 	if (IS_ERR(port->membase))
-		return -PTR_ERR(port->membase);
+		return PTR_ERR(port->membase);
 
 	data = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_uart_data),
 			    GFP_KERNEL);
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 53cbf4ebef10..b6ff01131eef 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -543,7 +543,6 @@ void __handle_sysrq(int key, bool check_mask)
 	 */
 	orig_log_level = console_loglevel;
 	console_loglevel = CONSOLE_LOGLEVEL_DEFAULT;
-	pr_info("SysRq : ");
 
         op_p = __sysrq_get_key_op(key);
         if (op_p) {
@@ -552,14 +551,15 @@ void __handle_sysrq(int key, bool check_mask)
 		 * should not) and is the invoked operation enabled?
 		 */
 		if (!check_mask || sysrq_on_mask(op_p->enable_mask)) {
-			pr_cont("%s\n", op_p->action_msg);
+			pr_info("%s\n", op_p->action_msg);
 			console_loglevel = orig_log_level;
 			op_p->handler(key);
 		} else {
-			pr_cont("This sysrq operation is disabled.\n");
+			pr_info("This sysrq operation is disabled.\n");
+			console_loglevel = orig_log_level;
 		}
 	} else {
-		pr_cont("HELP : ");
+		pr_info("HELP : ");
 		/* Only print the help msg once per handler */
 		for (i = 0; i < ARRAY_SIZE(sysrq_key_table); i++) {
 			if (sysrq_key_table[i]) {
diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c
index 6ac05021c4a7..1edc1a36db4a 100644
--- a/drivers/tty/vt/selection.c
+++ b/drivers/tty/vt/selection.c
@@ -13,6 +13,7 @@
 #include <linux/tty.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
+#include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 
@@ -40,6 +41,7 @@ static volatile int sel_start = -1; 	/* cleared by clear_selection */
 static int sel_end;
 static int sel_buffer_lth;
 static char *sel_buffer;
+static DEFINE_MUTEX(sel_lock);
 
 /* clear_selection, highlight and highlight_pointer can be called
    from interrupt (via scrollback/front) */
@@ -156,14 +158,14 @@ static int store_utf8(u16 c, char *p)
  *	The entire selection process is managed under the console_lock. It's
  *	 a lot under the lock but its hardly a performance path
  */
-int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty)
+static int __set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty)
 {
 	struct vc_data *vc = vc_cons[fg_console].d;
 	int sel_mode, new_sel_start, new_sel_end, spc;
 	char *bp, *obp;
 	int i, ps, pe, multiplier;
 	u16 c;
-	int mode;
+	int mode, ret = 0;
 
 	poke_blanked_console();
 
@@ -324,7 +326,21 @@ int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *t
 		}
 	}
 	sel_buffer_lth = bp - sel_buffer;
-	return 0;
+
+	return ret;
+}
+
+int set_selection(const struct tiocl_selection __user *v, struct tty_struct *tty)
+{
+	int ret;
+
+	mutex_lock(&sel_lock);
+	console_lock();
+	ret = __set_selection(v, tty);
+	console_unlock();
+	mutex_unlock(&sel_lock);
+
+	return ret;
 }
 
 /* Insert the contents of the selection buffer into the
@@ -353,6 +369,7 @@ int paste_selection(struct tty_struct *tty)
 	tty_buffer_lock_exclusive(&vc->port);
 
 	add_wait_queue(&vc->paste_wait, &wait);
+	mutex_lock(&sel_lock);
 	while (sel_buffer && sel_buffer_lth > pasted) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (signal_pending(current)) {
@@ -360,7 +377,9 @@ int paste_selection(struct tty_struct *tty)
 			break;
 		}
 		if (tty_throttled(tty)) {
+			mutex_unlock(&sel_lock);
 			schedule();
+			mutex_lock(&sel_lock);
 			continue;
 		}
 		__set_current_state(TASK_RUNNING);
@@ -369,6 +388,7 @@ int paste_selection(struct tty_struct *tty)
 					      count);
 		pasted += count;
 	}
+	mutex_unlock(&sel_lock);
 	remove_wait_queue(&vc->paste_wait, &wait);
 	__set_current_state(TASK_RUNNING);
 
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 232cb0a760b9..c1d3b685a587 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2690,9 +2690,7 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
 	switch (type)
 	{
 		case TIOCL_SETSEL:
-			console_lock();
 			ret = set_selection((struct tiocl_selection __user *)(p+1), tty);
-			console_unlock();
 			break;
 		case TIOCL_PASTESEL:
 			ret = paste_selection(tty);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 3fcc3e74ae2e..c958cf42a1bb 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -954,13 +954,17 @@ int usb_remove_device(struct usb_device *udev)
 {
 	struct usb_hub *hub;
 	struct usb_interface *intf;
+	int ret;
 
 	if (!udev->parent)	/* Can't remove a root hub */
 		return -EINVAL;
 	hub = usb_hub_to_struct_hub(udev->parent);
 	intf = to_usb_interface(hub->intfdev);
 
-	usb_autopm_get_interface(intf);
+	ret = usb_autopm_get_interface(intf);
+	if (ret < 0)
+		return ret;
+
 	set_bit(udev->portnum, hub->removed_bits);
 	hub_port_logical_disconnect(hub, udev->portnum);
 	usb_autopm_put_interface(intf);
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 460c855be0d0..53c1f6e604b1 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -179,7 +179,10 @@ static int usb_port_runtime_resume(struct device *dev)
 	if (!port_dev->is_superspeed && peer)
 		pm_runtime_get_sync(&peer->dev);
 
-	usb_autopm_get_interface(intf);
+	retval = usb_autopm_get_interface(intf);
+	if (retval < 0)
+		return retval;
+
 	retval = usb_hub_set_port_power(hdev, hub, port1, true);
 	msleep(hub_power_on_good_delay(hub));
 	if (udev && !retval) {
@@ -232,7 +235,10 @@ static int usb_port_runtime_suspend(struct device *dev)
 	if (usb_port_block_power_off)
 		return -EBUSY;
 
-	usb_autopm_get_interface(intf);
+	retval = usb_autopm_get_interface(intf);
+	if (retval < 0)
+		return retval;
+
 	retval = usb_hub_set_port_power(hdev, hub, port1, false);
 	usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_CONNECTION);
 	if (!port_dev->is_superspeed)
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index ad8307140df8..64c03e871f2d 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -86,6 +86,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Logitech PTZ Pro Camera */
 	{ USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
 
+	/* Logitech Screen Share */
+	{ USB_DEVICE(0x046d, 0x086c), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Logitech Quickcam Fusion */
 	{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 4d7df2f6caf5..3a0452ff1a56 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -438,9 +438,13 @@ static u8 encode_bMaxPower(enum usb_device_speed speed,
 	if (!val)
 		return 0;
 	if (speed < USB_SPEED_SUPER)
-		return DIV_ROUND_UP(val, 2);
+		return min(val, 500U) / 2;
 	else
-		return DIV_ROUND_UP(val, 8);
+		/*
+		 * USB 3.x supports up to 900mA, but since 900 isn't divisible
+		 * by 8 the integral division will effectively cap to 896mA.
+		 */
+		return min(val, 900U) / 8;
 }
 
 static int config_buf(struct usb_configuration *config,
@@ -833,6 +837,10 @@ static int set_config(struct usb_composite_dev *cdev,
 
 	/* when we return, be sure our power usage is valid */
 	power = c->MaxPower ? c->MaxPower : CONFIG_USB_GADGET_VBUS_DRAW;
+	if (gadget->speed < USB_SPEED_SUPER)
+		power = min(power, 500U);
+	else
+		power = min(power, 900U);
 done:
 	usb_gadget_vbus_draw(gadget, power);
 	if (result >= 0 && cdev->delayed_status)
@@ -2272,7 +2280,7 @@ void composite_resume(struct usb_gadget *gadget)
 {
 	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
 	struct usb_function		*f;
-	u16				maxpower;
+	unsigned			maxpower;
 
 	/* REVISIT:  should we have config level
 	 * suspend/resume callbacks?
@@ -2286,10 +2294,14 @@ void composite_resume(struct usb_gadget *gadget)
 				f->resume(f);
 		}
 
-		maxpower = cdev->config->MaxPower;
+		maxpower = cdev->config->MaxPower ?
+			cdev->config->MaxPower : CONFIG_USB_GADGET_VBUS_DRAW;
+		if (gadget->speed < USB_SPEED_SUPER)
+			maxpower = min(maxpower, 500U);
+		else
+			maxpower = min(maxpower, 900U);
 
-		usb_gadget_vbus_draw(gadget, maxpower ?
-			maxpower : CONFIG_USB_GADGET_VBUS_DRAW);
+		usb_gadget_vbus_draw(gadget, maxpower);
 	}
 
 	cdev->suspended = 0;
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index d1278d2d544b..b5747f1270a6 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1077,18 +1077,19 @@ static int ffs_aio_cancel(struct kiocb *kiocb)
 {
 	struct ffs_io_data *io_data = kiocb->private;
 	struct ffs_epfile *epfile = kiocb->ki_filp->private_data;
+	unsigned long flags;
 	int value;
 
 	ENTER();
 
-	spin_lock_irq(&epfile->ffs->eps_lock);
+	spin_lock_irqsave(&epfile->ffs->eps_lock, flags);
 
 	if (likely(io_data && io_data->ep && io_data->req))
 		value = usb_ep_dequeue(io_data->ep, io_data->req);
 	else
 		value = -EINVAL;
 
-	spin_unlock_irq(&epfile->ffs->eps_lock);
+	spin_unlock_irqrestore(&epfile->ffs->eps_lock, flags);
 
 	return value;
 }
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 510a54f88963..5d7d0f2e80a5 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -715,8 +715,10 @@ static int gs_start_io(struct gs_port *port)
 	port->n_read = 0;
 	started = gs_start_rx(port);
 
-	/* unblock any pending writes into our circular buffer */
 	if (started) {
+		gs_start_tx(port);
+		/* Unblock any pending writes into our circular buffer, in case
+		 * we didn't in gs_start_tx() */
 		tty_wakeup(port->port.tty);
 	} else {
 		gs_free_requests(ep, head, &port->read_allocated);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 3ebf6307217c..a52ae34fb1c3 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1277,6 +1277,12 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
 		USB_SC_RBC, USB_PR_BULK, NULL,
 		0 ),
 
+UNUSUAL_DEV(0x090c, 0x1000, 0x1100, 0x1100,
+		"Samsung",
+		"Flash Drive FIT",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_MAX_SECTORS_64),
+
 /* aeb */
 UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff,
 		"Feiya",
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index dd8798bf88e7..861f43f8f9ce 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -914,11 +914,7 @@ static int vhost_net_release(struct inode *inode, struct file *f)
 
 static struct socket *get_raw_socket(int fd)
 {
-	struct {
-		struct sockaddr_ll sa;
-		char  buf[MAX_ADDR_LEN];
-	} uaddr;
-	int uaddr_len = sizeof uaddr, r;
+	int r;
 	struct socket *sock = sockfd_lookup(fd, &r);
 
 	if (!sock)
@@ -930,12 +926,7 @@ static struct socket *get_raw_socket(int fd)
 		goto err;
 	}
 
-	r = sock->ops->getname(sock, (struct sockaddr *)&uaddr.sa,
-			       &uaddr_len, 0);
-	if (r)
-		goto err;
-
-	if (uaddr.sa.sll_family != AF_PACKET) {
+	if (sock->sk->sk_family != AF_PACKET) {
 		r = -EPFNOSUPPORT;
 		goto err;
 	}
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index dda1c4b3a229..42c0a26646f6 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1323,6 +1323,9 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font)
 static int vgacon_resize(struct vc_data *c, unsigned int width,
 			 unsigned int height, unsigned int user)
 {
+	if ((width << 1) * height > vga_vram_size)
+		return -EINVAL;
+
 	if (width % 2 || width > screen_info.orig_video_cols ||
 	    height > (screen_info.orig_video_lines * vga_default_font_height)/
 	    c->vc_font.height)
diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
index 7386111220d5..daeb645fcea8 100644
--- a/drivers/watchdog/da9062_wdt.c
+++ b/drivers/watchdog/da9062_wdt.c
@@ -126,13 +126,6 @@ static int da9062_wdt_stop(struct watchdog_device *wdd)
 	struct da9062_watchdog *wdt = watchdog_get_drvdata(wdd);
 	int ret;
 
-	ret = da9062_reset_watchdog_timer(wdt);
-	if (ret) {
-		dev_err(wdt->hw->dev, "Failed to ping the watchdog (err = %d)\n",
-			ret);
-		return ret;
-	}
-
 	ret = regmap_update_bits(wdt->hw->regmap,
 				 DA9062AA_CONTROL_D,
 				 DA9062AA_TWDSCALE_MASK,
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
index 0da9943d405f..c310e841561c 100644
--- a/drivers/watchdog/wdat_wdt.c
+++ b/drivers/watchdog/wdat_wdt.c
@@ -392,7 +392,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
 
 		memset(&r, 0, sizeof(r));
 		r.start = gas->address;
-		r.end = r.start + gas->access_width - 1;
+		r.end = r.start + ACPI_ACCESS_BYTE_WIDTH(gas->access_width) - 1;
 		if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 			r.flags = IORESOURCE_MEM;
 		} else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 15bac390dff9..10aedc2a4c2d 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -603,7 +603,7 @@ static void access_flags_to_mode(__le32 ace_flags, int type, umode_t *pmode,
 			((flags & FILE_EXEC_RIGHTS) == FILE_EXEC_RIGHTS))
 		*pmode |= (S_IXUGO & (*pbits_to_set));
 
-	cifs_dbg(NOISY, "access flags 0x%x mode now 0x%x\n", flags, *pmode);
+	cifs_dbg(NOISY, "access flags 0x%x mode now %04o\n", flags, *pmode);
 	return;
 }
 
@@ -632,7 +632,7 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use,
 	if (mode & S_IXUGO)
 		*pace_flags |= SET_FILE_EXEC_RIGHTS;
 
-	cifs_dbg(NOISY, "mode: 0x%x, access flags now 0x%x\n",
+	cifs_dbg(NOISY, "mode: %04o, access flags now 0x%x\n",
 		 mode, *pace_flags);
 	return;
 }
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 961fcb40183a..f2707ff795d4 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3401,7 +3401,7 @@ int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 	cifs_sb->mnt_gid = pvolume_info->linux_gid;
 	cifs_sb->mnt_file_mode = pvolume_info->file_mode;
 	cifs_sb->mnt_dir_mode = pvolume_info->dir_mode;
-	cifs_dbg(FYI, "file mode: 0x%hx  dir mode: 0x%hx\n",
+	cifs_dbg(FYI, "file mode: %04ho  dir mode: %04ho\n",
 		 cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode);
 
 	cifs_sb->actimeo = pvolume_info->actimeo;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index b1c0961e6b3f..dfa85ad5b481 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1573,7 +1573,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode)
 	struct TCP_Server_Info *server;
 	char *full_path;
 
-	cifs_dbg(FYI, "In cifs_mkdir, mode = 0x%hx inode = 0x%p\n",
+	cifs_dbg(FYI, "In cifs_mkdir, mode = %04ho inode = 0x%p\n",
 		 mode, inode);
 
 	cifs_sb = CIFS_SB(inode->i_sb);
@@ -1990,6 +1990,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
 	struct inode *inode = d_inode(dentry);
 	struct super_block *sb = dentry->d_sb;
 	char *full_path = NULL;
+	int count = 0;
 
 	if (inode == NULL)
 		return -ENOENT;
@@ -2011,15 +2012,18 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
 		 full_path, inode, inode->i_count.counter,
 		 dentry, cifs_get_time(dentry), jiffies);
 
+again:
 	if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
 		rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
 	else
 		rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
 					 xid, NULL);
-
+	if (rc == -EAGAIN && count++ < 10)
+		goto again;
 out:
 	kfree(full_path);
 	free_xid(xid);
+
 	return rc;
 }
 
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 3f3ec50bf773..b134315fb69d 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1285,7 +1285,7 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat,
 		printk(KERN_ERR "Enter w/ first byte != 0x%.2x\n",
 		       ECRYPTFS_TAG_1_PACKET_TYPE);
 		rc = -EINVAL;
-		goto out_free;
+		goto out;
 	}
 	/* Released: wipe_auth_tok_list called in ecryptfs_parse_packet_set or
 	 * at end of function upon failure */
@@ -1335,7 +1335,7 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat,
 		printk(KERN_WARNING "Tag 1 packet contains key larger "
 		       "than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES");
 		rc = -EINVAL;
-		goto out;
+		goto out_free;
 	}
 	memcpy((*new_auth_tok)->session_key.encrypted_key,
 	       &data[(*packet_size)], (body_size - (ECRYPTFS_SIG_SIZE + 2)));
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 2455fe1446d6..de601f3c023d 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -279,6 +279,7 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
 	ext4_group_t ngroups = ext4_get_groups_count(sb);
 	struct ext4_group_desc *desc;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct buffer_head *bh_p;
 
 	if (block_group >= ngroups) {
 		ext4_error(sb, "block_group >= groups_count - block_group = %u,"
@@ -289,7 +290,14 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
 
 	group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb);
 	offset = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1);
-	if (!sbi->s_group_desc[group_desc]) {
+	bh_p = sbi_array_rcu_deref(sbi, s_group_desc, group_desc);
+	/*
+	 * sbi_array_rcu_deref returns with rcu unlocked, this is ok since
+	 * the pointer being dereferenced won't be dereferenced again. By
+	 * looking at the usage in add_new_gdb() the value isn't modified,
+	 * just the pointer, and so it remains valid.
+	 */
+	if (!bh_p) {
 		ext4_error(sb, "Group descriptor not loaded - "
 			   "block_group = %u, group_desc = %u, desc = %u",
 			   block_group, group_desc, offset);
@@ -297,10 +305,10 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
 	}
 
 	desc = (struct ext4_group_desc *)(
-		(__u8 *)sbi->s_group_desc[group_desc]->b_data +
+		(__u8 *)bh_p->b_data +
 		offset * EXT4_DESC_SIZE(sb));
 	if (bh)
-		*bh = sbi->s_group_desc[group_desc];
+		*bh = bh_p;
 	return desc;
 }
 
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9713d3d41412..eb0ec5068423 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1367,7 +1367,7 @@ struct ext4_sb_info {
 	loff_t s_bitmap_maxbytes;	/* max bytes for bitmap files */
 	struct buffer_head * s_sbh;	/* Buffer containing the super block */
 	struct ext4_super_block *s_es;	/* Pointer to the super block in the buffer */
-	struct buffer_head **s_group_desc;
+	struct buffer_head * __rcu *s_group_desc;
 	unsigned int s_mount_opt;
 	unsigned int s_mount_opt2;
 	unsigned int s_mount_flags;
@@ -1427,7 +1427,7 @@ struct ext4_sb_info {
 #endif
 
 	/* for buddy allocator */
-	struct ext4_group_info ***s_group_info;
+	struct ext4_group_info ** __rcu *s_group_info;
 	struct inode *s_buddy_cache;
 	spinlock_t s_md_lock;
 	unsigned short *s_mb_offsets;
@@ -1475,7 +1475,7 @@ struct ext4_sb_info {
 	unsigned int s_extent_max_zeroout_kb;
 
 	unsigned int s_log_groups_per_flex;
-	struct flex_groups *s_flex_groups;
+	struct flex_groups * __rcu *s_flex_groups;
 	ext4_group_t s_flex_groups_allocated;
 
 	/* workqueue for reserved extent conversions (buffered io) */
@@ -1549,6 +1549,23 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
 		 ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count));
 }
 
+/*
+ * Returns: sbi->field[index]
+ * Used to access an array element from the following sbi fields which require
+ * rcu protection to avoid dereferencing an invalid pointer due to reassignment
+ * - s_group_desc
+ * - s_group_info
+ * - s_flex_group
+ */
+#define sbi_array_rcu_deref(sbi, field, index)				   \
+({									   \
+	typeof(*((sbi)->field)) _v;					   \
+	rcu_read_lock();						   \
+	_v = ((typeof(_v)*)rcu_dereference((sbi)->field))[index];	   \
+	rcu_read_unlock();						   \
+	_v;								   \
+})
+
 /*
  * Inode dynamic state flags
  */
@@ -2558,6 +2575,7 @@ extern int ext4_generic_delete_entry(handle_t *handle,
 extern bool ext4_empty_dir(struct inode *inode);
 
 /* resize.c */
+extern void ext4_kvfree_array_rcu(void *to_free);
 extern int ext4_group_add(struct super_block *sb,
 				struct ext4_new_group_data *input);
 extern int ext4_group_extend(struct super_block *sb,
@@ -2798,13 +2816,13 @@ static inline
 struct ext4_group_info *ext4_get_group_info(struct super_block *sb,
 					    ext4_group_t group)
 {
-	 struct ext4_group_info ***grp_info;
+	 struct ext4_group_info **grp_info;
 	 long indexv, indexh;
 	 BUG_ON(group >= EXT4_SB(sb)->s_groups_count);
-	 grp_info = EXT4_SB(sb)->s_group_info;
 	 indexv = group >> (EXT4_DESC_PER_BLOCK_BITS(sb));
 	 indexh = group & ((EXT4_DESC_PER_BLOCK(sb)) - 1);
-	 return grp_info[indexv][indexh];
+	 grp_info = sbi_array_rcu_deref(EXT4_SB(sb), s_group_info, indexv);
+	 return grp_info[indexh];
 }
 
 /*
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 4f78e099de1d..c5af7bbf906f 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -331,11 +331,13 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
 
 	percpu_counter_inc(&sbi->s_freeinodes_counter);
 	if (sbi->s_log_groups_per_flex) {
-		ext4_group_t f = ext4_flex_group(sbi, block_group);
+		struct flex_groups *fg;
 
-		atomic_inc(&sbi->s_flex_groups[f].free_inodes);
+		fg = sbi_array_rcu_deref(sbi, s_flex_groups,
+					 ext4_flex_group(sbi, block_group));
+		atomic_inc(&fg->free_inodes);
 		if (is_directory)
-			atomic_dec(&sbi->s_flex_groups[f].used_dirs);
+			atomic_dec(&fg->used_dirs);
 	}
 	BUFFER_TRACE(bh2, "call ext4_handle_dirty_metadata");
 	fatal = ext4_handle_dirty_metadata(handle, NULL, bh2);
@@ -376,12 +378,13 @@ static void get_orlov_stats(struct super_block *sb, ext4_group_t g,
 			    int flex_size, struct orlov_stats *stats)
 {
 	struct ext4_group_desc *desc;
-	struct flex_groups *flex_group = EXT4_SB(sb)->s_flex_groups;
 
 	if (flex_size > 1) {
-		stats->free_inodes = atomic_read(&flex_group[g].free_inodes);
-		stats->free_clusters = atomic64_read(&flex_group[g].free_clusters);
-		stats->used_dirs = atomic_read(&flex_group[g].used_dirs);
+		struct flex_groups *fg = sbi_array_rcu_deref(EXT4_SB(sb),
+							     s_flex_groups, g);
+		stats->free_inodes = atomic_read(&fg->free_inodes);
+		stats->free_clusters = atomic64_read(&fg->free_clusters);
+		stats->used_dirs = atomic_read(&fg->used_dirs);
 		return;
 	}
 
@@ -988,7 +991,8 @@ got:
 		if (sbi->s_log_groups_per_flex) {
 			ext4_group_t f = ext4_flex_group(sbi, group);
 
-			atomic_inc(&sbi->s_flex_groups[f].used_dirs);
+			atomic_inc(&sbi_array_rcu_deref(sbi, s_flex_groups,
+							f)->used_dirs);
 		}
 	}
 	if (ext4_has_group_desc_csum(sb)) {
@@ -1011,7 +1015,8 @@ got:
 
 	if (sbi->s_log_groups_per_flex) {
 		flex_group = ext4_flex_group(sbi, group);
-		atomic_dec(&sbi->s_flex_groups[flex_group].free_inodes);
+		atomic_dec(&sbi_array_rcu_deref(sbi, s_flex_groups,
+						flex_group)->free_inodes);
 	}
 
 	inode->i_ino = ino + group * EXT4_INODES_PER_GROUP(sb);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a49d0e5d7baf..c18668e3135e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2377,7 +2377,7 @@ int ext4_mb_alloc_groupinfo(struct super_block *sb, ext4_group_t ngroups)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	unsigned size;
-	struct ext4_group_info ***new_groupinfo;
+	struct ext4_group_info ***old_groupinfo, ***new_groupinfo;
 
 	size = (ngroups + EXT4_DESC_PER_BLOCK(sb) - 1) >>
 		EXT4_DESC_PER_BLOCK_BITS(sb);
@@ -2390,13 +2390,16 @@ int ext4_mb_alloc_groupinfo(struct super_block *sb, ext4_group_t ngroups)
 		ext4_msg(sb, KERN_ERR, "can't allocate buddy meta group");
 		return -ENOMEM;
 	}
-	if (sbi->s_group_info) {
-		memcpy(new_groupinfo, sbi->s_group_info,
+	rcu_read_lock();
+	old_groupinfo = rcu_dereference(sbi->s_group_info);
+	if (old_groupinfo)
+		memcpy(new_groupinfo, old_groupinfo,
 		       sbi->s_group_info_size * sizeof(*sbi->s_group_info));
-		kvfree(sbi->s_group_info);
-	}
-	sbi->s_group_info = new_groupinfo;
+	rcu_read_unlock();
+	rcu_assign_pointer(sbi->s_group_info, new_groupinfo);
 	sbi->s_group_info_size = size / sizeof(*sbi->s_group_info);
+	if (old_groupinfo)
+		ext4_kvfree_array_rcu(old_groupinfo);
 	ext4_debug("allocated s_groupinfo array for %d meta_bg's\n", 
 		   sbi->s_group_info_size);
 	return 0;
@@ -2408,6 +2411,7 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
 {
 	int i;
 	int metalen = 0;
+	int idx = group >> EXT4_DESC_PER_BLOCK_BITS(sb);
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_group_info **meta_group_info;
 	struct kmem_cache *cachep = get_groupinfo_cache(sb->s_blocksize_bits);
@@ -2426,12 +2430,12 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
 				 "for a buddy group");
 			goto exit_meta_group_info;
 		}
-		sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)] =
-			meta_group_info;
+		rcu_read_lock();
+		rcu_dereference(sbi->s_group_info)[idx] = meta_group_info;
+		rcu_read_unlock();
 	}
 
-	meta_group_info =
-		sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)];
+	meta_group_info = sbi_array_rcu_deref(sbi, s_group_info, idx);
 	i = group & (EXT4_DESC_PER_BLOCK(sb) - 1);
 
 	meta_group_info[i] = kmem_cache_zalloc(cachep, GFP_NOFS);
@@ -2479,8 +2483,13 @@ int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
 exit_group_info:
 	/* If a meta_group_info table has been allocated, release it now */
 	if (group % EXT4_DESC_PER_BLOCK(sb) == 0) {
-		kfree(sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)]);
-		sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)] = NULL;
+		struct ext4_group_info ***group_info;
+
+		rcu_read_lock();
+		group_info = rcu_dereference(sbi->s_group_info);
+		kfree(group_info[idx]);
+		group_info[idx] = NULL;
+		rcu_read_unlock();
 	}
 exit_meta_group_info:
 	return -ENOMEM;
@@ -2493,6 +2502,7 @@ static int ext4_mb_init_backend(struct super_block *sb)
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	int err;
 	struct ext4_group_desc *desc;
+	struct ext4_group_info ***group_info;
 	struct kmem_cache *cachep;
 
 	err = ext4_mb_alloc_groupinfo(sb, ngroups);
@@ -2527,11 +2537,16 @@ err_freebuddy:
 	while (i-- > 0)
 		kmem_cache_free(cachep, ext4_get_group_info(sb, i));
 	i = sbi->s_group_info_size;
+	rcu_read_lock();
+	group_info = rcu_dereference(sbi->s_group_info);
 	while (i-- > 0)
-		kfree(sbi->s_group_info[i]);
+		kfree(group_info[i]);
+	rcu_read_unlock();
 	iput(sbi->s_buddy_cache);
 err_freesgi:
-	kvfree(sbi->s_group_info);
+	rcu_read_lock();
+	kvfree(rcu_dereference(sbi->s_group_info));
+	rcu_read_unlock();
 	return -ENOMEM;
 }
 
@@ -2720,7 +2735,7 @@ int ext4_mb_release(struct super_block *sb)
 	ext4_group_t ngroups = ext4_get_groups_count(sb);
 	ext4_group_t i;
 	int num_meta_group_infos;
-	struct ext4_group_info *grinfo;
+	struct ext4_group_info *grinfo, ***group_info;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct kmem_cache *cachep = get_groupinfo_cache(sb->s_blocksize_bits);
 
@@ -2738,9 +2753,12 @@ int ext4_mb_release(struct super_block *sb)
 		num_meta_group_infos = (ngroups +
 				EXT4_DESC_PER_BLOCK(sb) - 1) >>
 			EXT4_DESC_PER_BLOCK_BITS(sb);
+		rcu_read_lock();
+		group_info = rcu_dereference(sbi->s_group_info);
 		for (i = 0; i < num_meta_group_infos; i++)
-			kfree(sbi->s_group_info[i]);
-		kvfree(sbi->s_group_info);
+			kfree(group_info[i]);
+		kvfree(group_info);
+		rcu_read_unlock();
 	}
 	kfree(sbi->s_mb_offsets);
 	kfree(sbi->s_mb_maxs);
@@ -2998,7 +3016,8 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 		ext4_group_t flex_group = ext4_flex_group(sbi,
 							  ac->ac_b_ex.fe_group);
 		atomic64_sub(ac->ac_b_ex.fe_len,
-			     &sbi->s_flex_groups[flex_group].free_clusters);
+			     &sbi_array_rcu_deref(sbi, s_flex_groups,
+						  flex_group)->free_clusters);
 	}
 
 	err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
@@ -4888,7 +4907,8 @@ do_more:
 	if (sbi->s_log_groups_per_flex) {
 		ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
 		atomic64_add(count_clusters,
-			     &sbi->s_flex_groups[flex_group].free_clusters);
+			     &sbi_array_rcu_deref(sbi, s_flex_groups,
+						  flex_group)->free_clusters);
 	}
 
 	if (!(flags & EXT4_FREE_BLOCKS_NO_QUOT_UPDATE))
@@ -5033,7 +5053,8 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
 	if (sbi->s_log_groups_per_flex) {
 		ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
 		atomic64_add(EXT4_NUM_B2C(sbi, blocks_freed),
-			     &sbi->s_flex_groups[flex_group].free_clusters);
+			     &sbi_array_rcu_deref(sbi, s_flex_groups,
+						  flex_group)->free_clusters);
 	}
 
 	ext4_mb_unload_buddy(&e4b);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index aef2a24dc9f9..845d9841c91c 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -16,6 +16,33 @@
 
 #include "ext4_jbd2.h"
 
+struct ext4_rcu_ptr {
+	struct rcu_head rcu;
+	void *ptr;
+};
+
+static void ext4_rcu_ptr_callback(struct rcu_head *head)
+{
+	struct ext4_rcu_ptr *ptr;
+
+	ptr = container_of(head, struct ext4_rcu_ptr, rcu);
+	kvfree(ptr->ptr);
+	kfree(ptr);
+}
+
+void ext4_kvfree_array_rcu(void *to_free)
+{
+	struct ext4_rcu_ptr *ptr = kzalloc(sizeof(*ptr), GFP_KERNEL);
+
+	if (ptr) {
+		ptr->ptr = to_free;
+		call_rcu(&ptr->rcu, ext4_rcu_ptr_callback);
+		return;
+	}
+	synchronize_rcu();
+	kvfree(to_free);
+}
+
 int ext4_resize_begin(struct super_block *sb)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -541,8 +568,8 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
 				brelse(gdb);
 				goto out;
 			}
-			memcpy(gdb->b_data, sbi->s_group_desc[j]->b_data,
-			       gdb->b_size);
+			memcpy(gdb->b_data, sbi_array_rcu_deref(sbi,
+				s_group_desc, j)->b_data, gdb->b_size);
 			set_buffer_uptodate(gdb);
 
 			err = ext4_handle_dirty_metadata(handle, NULL, gdb);
@@ -849,13 +876,15 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 	}
 	brelse(dind);
 
-	o_group_desc = EXT4_SB(sb)->s_group_desc;
+	rcu_read_lock();
+	o_group_desc = rcu_dereference(EXT4_SB(sb)->s_group_desc);
 	memcpy(n_group_desc, o_group_desc,
 	       EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *));
+	rcu_read_unlock();
 	n_group_desc[gdb_num] = gdb_bh;
-	EXT4_SB(sb)->s_group_desc = n_group_desc;
+	rcu_assign_pointer(EXT4_SB(sb)->s_group_desc, n_group_desc);
 	EXT4_SB(sb)->s_gdb_count++;
-	kvfree(o_group_desc);
+	ext4_kvfree_array_rcu(o_group_desc);
 
 	le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
 	err = ext4_handle_dirty_super(handle, sb);
@@ -903,9 +932,11 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
 		return err;
 	}
 
-	o_group_desc = EXT4_SB(sb)->s_group_desc;
+	rcu_read_lock();
+	o_group_desc = rcu_dereference(EXT4_SB(sb)->s_group_desc);
 	memcpy(n_group_desc, o_group_desc,
 	       EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *));
+	rcu_read_unlock();
 	n_group_desc[gdb_num] = gdb_bh;
 
 	BUFFER_TRACE(gdb_bh, "get_write_access");
@@ -916,9 +947,9 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
 		return err;
 	}
 
-	EXT4_SB(sb)->s_group_desc = n_group_desc;
+	rcu_assign_pointer(EXT4_SB(sb)->s_group_desc, n_group_desc);
 	EXT4_SB(sb)->s_gdb_count++;
-	kvfree(o_group_desc);
+	ext4_kvfree_array_rcu(o_group_desc);
 	return err;
 }
 
@@ -1180,7 +1211,8 @@ static int ext4_add_new_descs(handle_t *handle, struct super_block *sb,
 		 * use non-sparse filesystems anymore.  This is already checked above.
 		 */
 		if (gdb_off) {
-			gdb_bh = sbi->s_group_desc[gdb_num];
+			gdb_bh = sbi_array_rcu_deref(sbi, s_group_desc,
+						     gdb_num);
 			BUFFER_TRACE(gdb_bh, "get_write_access");
 			err = ext4_journal_get_write_access(handle, gdb_bh);
 
@@ -1262,7 +1294,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
 		/*
 		 * get_write_access() has been called on gdb_bh by ext4_add_new_desc().
 		 */
-		gdb_bh = sbi->s_group_desc[gdb_num];
+		gdb_bh = sbi_array_rcu_deref(sbi, s_group_desc, gdb_num);
 		/* Update group descriptor block for new group */
 		gdp = (struct ext4_group_desc *)(gdb_bh->b_data +
 						 gdb_off * EXT4_DESC_SIZE(sb));
@@ -1390,11 +1422,14 @@ static void ext4_update_super(struct super_block *sb,
 		   percpu_counter_read(&sbi->s_freeclusters_counter));
 	if (ext4_has_feature_flex_bg(sb) && sbi->s_log_groups_per_flex) {
 		ext4_group_t flex_group;
+		struct flex_groups *fg;
+
 		flex_group = ext4_flex_group(sbi, group_data[0].group);
+		fg = sbi_array_rcu_deref(sbi, s_flex_groups, flex_group);
 		atomic64_add(EXT4_NUM_B2C(sbi, free_blocks),
-			     &sbi->s_flex_groups[flex_group].free_clusters);
+			     &fg->free_clusters);
 		atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,
-			   &sbi->s_flex_groups[flex_group].free_inodes);
+			   &fg->free_inodes);
 	}
 
 	/*
@@ -1489,7 +1524,8 @@ exit_journal:
 		for (; gdb_num <= gdb_num_end; gdb_num++) {
 			struct buffer_head *gdb_bh;
 
-			gdb_bh = sbi->s_group_desc[gdb_num];
+			gdb_bh = sbi_array_rcu_deref(sbi, s_group_desc,
+						     gdb_num);
 			if (old_gdb == gdb_bh->b_blocknr)
 				continue;
 			update_backups(sb, gdb_bh->b_blocknr, gdb_bh->b_data,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b69a78c061cb..75f71e52ffc7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -826,6 +826,8 @@ static void ext4_put_super(struct super_block *sb)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
+	struct buffer_head **group_desc;
+	struct flex_groups **flex_groups;
 	int aborted = 0;
 	int i, err;
 
@@ -857,10 +859,18 @@ static void ext4_put_super(struct super_block *sb)
 	if (!(sb->s_flags & MS_RDONLY))
 		ext4_commit_super(sb, 1);
 
+	rcu_read_lock();
+	group_desc = rcu_dereference(sbi->s_group_desc);
 	for (i = 0; i < sbi->s_gdb_count; i++)
-		brelse(sbi->s_group_desc[i]);
-	kvfree(sbi->s_group_desc);
-	kvfree(sbi->s_flex_groups);
+		brelse(group_desc[i]);
+	kvfree(group_desc);
+	flex_groups = rcu_dereference(sbi->s_flex_groups);
+	if (flex_groups) {
+		for (i = 0; i < sbi->s_flex_groups_allocated; i++)
+			kvfree(flex_groups[i]);
+		kvfree(flex_groups);
+	}
+	rcu_read_unlock();
 	percpu_counter_destroy(&sbi->s_freeclusters_counter);
 	percpu_counter_destroy(&sbi->s_freeinodes_counter);
 	percpu_counter_destroy(&sbi->s_dirs_counter);
@@ -2109,8 +2119,8 @@ done:
 int ext4_alloc_flex_bg_array(struct super_block *sb, ext4_group_t ngroup)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
-	struct flex_groups *new_groups;
-	int size;
+	struct flex_groups **old_groups, **new_groups;
+	int size, i, j;
 
 	if (!sbi->s_log_groups_per_flex)
 		return 0;
@@ -2119,22 +2129,37 @@ int ext4_alloc_flex_bg_array(struct super_block *sb, ext4_group_t ngroup)
 	if (size <= sbi->s_flex_groups_allocated)
 		return 0;
 
-	size = roundup_pow_of_two(size * sizeof(struct flex_groups));
-	new_groups = ext4_kvzalloc(size, GFP_KERNEL);
+	new_groups = ext4_kvzalloc(roundup_pow_of_two(size *
+				   sizeof(*sbi->s_flex_groups)), GFP_KERNEL);
 	if (!new_groups) {
-		ext4_msg(sb, KERN_ERR, "not enough memory for %d flex groups",
-			 size / (int) sizeof(struct flex_groups));
+		ext4_msg(sb, KERN_ERR,
+			 "not enough memory for %d flex group pointers", size);
 		return -ENOMEM;
 	}
-
-	if (sbi->s_flex_groups) {
-		memcpy(new_groups, sbi->s_flex_groups,
-		       (sbi->s_flex_groups_allocated *
-			sizeof(struct flex_groups)));
-		kvfree(sbi->s_flex_groups);
+	for (i = sbi->s_flex_groups_allocated; i < size; i++) {
+		new_groups[i] = ext4_kvzalloc(roundup_pow_of_two(
+					      sizeof(struct flex_groups)),
+					      GFP_KERNEL);
+		if (!new_groups[i]) {
+			for (j = sbi->s_flex_groups_allocated; j < i; j++)
+				kvfree(new_groups[j]);
+			kvfree(new_groups);
+			ext4_msg(sb, KERN_ERR,
+				 "not enough memory for %d flex groups", size);
+			return -ENOMEM;
+		}
 	}
-	sbi->s_flex_groups = new_groups;
-	sbi->s_flex_groups_allocated = size / sizeof(struct flex_groups);
+	rcu_read_lock();
+	old_groups = rcu_dereference(sbi->s_flex_groups);
+	if (old_groups)
+		memcpy(new_groups, old_groups,
+		       (sbi->s_flex_groups_allocated *
+			sizeof(struct flex_groups *)));
+	rcu_read_unlock();
+	rcu_assign_pointer(sbi->s_flex_groups, new_groups);
+	sbi->s_flex_groups_allocated = size;
+	if (old_groups)
+		ext4_kvfree_array_rcu(old_groups);
 	return 0;
 }
 
@@ -2142,6 +2167,7 @@ static int ext4_fill_flex_info(struct super_block *sb)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_group_desc *gdp = NULL;
+	struct flex_groups *fg;
 	ext4_group_t flex_group;
 	int i, err;
 
@@ -2159,12 +2185,11 @@ static int ext4_fill_flex_info(struct super_block *sb)
 		gdp = ext4_get_group_desc(sb, i, NULL);
 
 		flex_group = ext4_flex_group(sbi, i);
-		atomic_add(ext4_free_inodes_count(sb, gdp),
-			   &sbi->s_flex_groups[flex_group].free_inodes);
+		fg = sbi_array_rcu_deref(sbi, s_flex_groups, flex_group);
+		atomic_add(ext4_free_inodes_count(sb, gdp), &fg->free_inodes);
 		atomic64_add(ext4_free_group_clusters(sb, gdp),
-			     &sbi->s_flex_groups[flex_group].free_clusters);
-		atomic_add(ext4_used_dirs_count(sb, gdp),
-			   &sbi->s_flex_groups[flex_group].used_dirs);
+			     &fg->free_clusters);
+		atomic_add(ext4_used_dirs_count(sb, gdp), &fg->used_dirs);
 	}
 
 	return 1;
@@ -3403,9 +3428,10 @@ static void ext4_set_resv_clusters(struct super_block *sb)
 static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 {
 	char *orig_data = kstrdup(data, GFP_KERNEL);
-	struct buffer_head *bh;
+	struct buffer_head *bh, **group_desc;
 	struct ext4_super_block *es = NULL;
 	struct ext4_sb_info *sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
+	struct flex_groups **flex_groups;
 	ext4_fsblk_t block;
 	ext4_fsblk_t sb_block = get_sb_block(&data);
 	ext4_fsblk_t logical_sb_block;
@@ -3955,9 +3981,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 			goto failed_mount;
 		}
 	}
-	sbi->s_group_desc = ext4_kvmalloc(db_count *
+	rcu_assign_pointer(sbi->s_group_desc,
+			   ext4_kvmalloc(db_count *
 					  sizeof(struct buffer_head *),
-					  GFP_KERNEL);
+					  GFP_KERNEL));
 	if (sbi->s_group_desc == NULL) {
 		ext4_msg(sb, KERN_ERR, "not enough memory");
 		ret = -ENOMEM;
@@ -3967,14 +3994,19 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	bgl_lock_init(sbi->s_blockgroup_lock);
 
 	for (i = 0; i < db_count; i++) {
+		struct buffer_head *bh;
+
 		block = descriptor_loc(sb, logical_sb_block, i);
-		sbi->s_group_desc[i] = sb_bread_unmovable(sb, block);
-		if (!sbi->s_group_desc[i]) {
+		bh = sb_bread_unmovable(sb, block);
+		if (!bh) {
 			ext4_msg(sb, KERN_ERR,
 			       "can't read group descriptor %d", i);
 			db_count = i;
 			goto failed_mount2;
 		}
+		rcu_read_lock();
+		rcu_dereference(sbi->s_group_desc)[i] = bh;
+		rcu_read_unlock();
 	}
 	sbi->s_gdb_count = db_count;
 	if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
@@ -4316,8 +4348,14 @@ failed_mount7:
 	ext4_unregister_li_request(sb);
 failed_mount6:
 	ext4_mb_release(sb);
-	if (sbi->s_flex_groups)
-		kvfree(sbi->s_flex_groups);
+	rcu_read_lock();
+	flex_groups = rcu_dereference(sbi->s_flex_groups);
+	if (flex_groups) {
+		for (i = 0; i < sbi->s_flex_groups_allocated; i++)
+			kvfree(flex_groups[i]);
+		kvfree(flex_groups);
+	}
+	rcu_read_unlock();
 	percpu_counter_destroy(&sbi->s_freeclusters_counter);
 	percpu_counter_destroy(&sbi->s_freeinodes_counter);
 	percpu_counter_destroy(&sbi->s_dirs_counter);
@@ -4349,9 +4387,12 @@ failed_mount3:
 	if (sbi->s_mmp_tsk)
 		kthread_stop(sbi->s_mmp_tsk);
 failed_mount2:
+	rcu_read_lock();
+	group_desc = rcu_dereference(sbi->s_group_desc);
 	for (i = 0; i < db_count; i++)
-		brelse(sbi->s_group_desc[i]);
-	kvfree(sbi->s_group_desc);
+		brelse(group_desc[i]);
+	kvfree(group_desc);
+	rcu_read_unlock();
 failed_mount:
 	if (sbi->s_chksum_driver)
 		crypto_free_shash(sbi->s_chksum_driver);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 88720011a6eb..f0387d040331 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -736,6 +736,13 @@ static struct inode *fat_alloc_inode(struct super_block *sb)
 		return NULL;
 
 	init_rwsem(&ei->truncate_lock);
+	/* Zeroing to allow iput() even if partial initialized inode. */
+	ei->mmu_private = 0;
+	ei->i_start = 0;
+	ei->i_logstart = 0;
+	ei->i_attrs = 0;
+	ei->i_pos = 0;
+
 	return &ei->vfs_inode;
 }
 
@@ -1366,16 +1373,6 @@ out:
 	return 0;
 }
 
-static void fat_dummy_inode_init(struct inode *inode)
-{
-	/* Initialize this dummy inode to work as no-op. */
-	MSDOS_I(inode)->mmu_private = 0;
-	MSDOS_I(inode)->i_start = 0;
-	MSDOS_I(inode)->i_logstart = 0;
-	MSDOS_I(inode)->i_attrs = 0;
-	MSDOS_I(inode)->i_pos = 0;
-}
-
 static int fat_read_root(struct inode *inode)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
@@ -1820,13 +1817,11 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 	fat_inode = new_inode(sb);
 	if (!fat_inode)
 		goto out_fail;
-	fat_dummy_inode_init(fat_inode);
 	sbi->fat_inode = fat_inode;
 
 	fsinfo_inode = new_inode(sb);
 	if (!fsinfo_inode)
 		goto out_fail;
-	fat_dummy_inode_init(fsinfo_inode);
 	fsinfo_inode->i_ino = MSDOS_FSINFO_INO;
 	sbi->fsinfo_inode = fsinfo_inode;
 	insert_inode_hash(fsinfo_inode);
diff --git a/fs/namei.c b/fs/namei.c
index 757a50ecf0f4..0953281430b1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1370,7 +1370,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
 			nd->path.dentry = parent;
 			nd->seq = seq;
 			if (unlikely(!path_connected(&nd->path)))
-				return -ENOENT;
+				return -ECHILD;
 			break;
 		} else {
 			struct mount *mnt = real_mount(nd->path.mnt);
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 1d798abae710..f502d257d494 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -551,6 +551,8 @@ typedef u64 acpi_integer;
 #define ACPI_VALIDATE_RSDP_SIG(a)       (!strncmp (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
 #define ACPI_MAKE_RSDP_SIG(dest)        (memcpy (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
 
+#define ACPI_ACCESS_BYTE_WIDTH(size)    (1 << ((size) - 1))
+
 /*******************************************************************************
  *
  * Miscellaneous constants
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 76ad8a957ffa..cee74a52b9eb 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -3,7 +3,8 @@
 #include <asm/types.h>
 #include <linux/bits.h>
 
-#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_TYPE(long))
 
 extern unsigned int __sw_hweight8(unsigned int w);
 extern unsigned int __sw_hweight16(unsigned int w);
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 04bdf5477ec5..eda06f7ee84a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -453,7 +453,7 @@ struct hid_report_enum {
 };
 
 #define HID_MIN_BUFFER_SIZE	64		/* make sure there is at least a packet size of space */
-#define HID_MAX_BUFFER_SIZE	4096		/* 4kb */
+#define HID_MAX_BUFFER_SIZE	8192		/* 8kb */
 #define HID_CONTROL_FIFO_SIZE	256		/* to init devices with >100 reports */
 #define HID_OUTPUT_FIFO_SIZE	64
 
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index 1505cf7a4aaf..7a85a4ef6868 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -4,6 +4,7 @@
 #include <linux/types.h>
 #include <linux/in6.h>
 #include <linux/siphash.h>
+#include <linux/string.h>
 #include <uapi/linux/if_ether.h>
 
 /**
@@ -204,4 +205,12 @@ static inline void *skb_flow_dissector_target(struct flow_dissector *flow_dissec
 	return ((char *)target_container) + flow_dissector->offset[key_id];
 }
 
+static inline void
+flow_dissector_init_keys(struct flow_dissector_key_control *key_control,
+			 struct flow_dissector_key_basic *key_basic)
+{
+	memset(key_control, 0, sizeof(*key_control));
+	memset(key_basic, 0, sizeof(*key_basic));
+}
+
 #endif
diff --git a/kernel/audit.c b/kernel/audit.c
index 3461a3d874fe..53dcaa3b67bc 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -751,13 +751,11 @@ static void audit_log_feature_change(int which, u32 old_feature, u32 new_feature
 	audit_log_end(ab);
 }
 
-static int audit_set_feature(struct sk_buff *skb)
+static int audit_set_feature(struct audit_features *uaf)
 {
-	struct audit_features *uaf;
 	int i;
 
 	BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > ARRAY_SIZE(audit_feature_names));
-	uaf = nlmsg_data(nlmsg_hdr(skb));
 
 	/* if there is ever a version 2 we should handle that here */
 
@@ -823,6 +821,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
 	u32			seq;
 	void			*data;
+	int			data_len;
 	int			err;
 	struct audit_buffer	*ab;
 	u16			msg_type = nlh->nlmsg_type;
@@ -846,6 +845,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	}
 	seq  = nlh->nlmsg_seq;
 	data = nlmsg_data(nlh);
+	data_len = nlmsg_len(nlh);
 
 	switch (msg_type) {
 	case AUDIT_GET: {
@@ -867,7 +867,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		struct audit_status	s;
 		memset(&s, 0, sizeof(s));
 		/* guard against past and future API changes */
-		memcpy(&s, data, min_t(size_t, sizeof(s), nlmsg_len(nlh)));
+		memcpy(&s, data, min_t(size_t, sizeof(s), data_len));
 		if (s.mask & AUDIT_STATUS_ENABLED) {
 			err = audit_set_enabled(s.enabled);
 			if (err < 0)
@@ -930,7 +930,9 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			return err;
 		break;
 	case AUDIT_SET_FEATURE:
-		err = audit_set_feature(skb);
+		if (data_len < sizeof(struct audit_features))
+			return -EINVAL;
+		err = audit_set_feature(data);
 		if (err)
 			return err;
 		break;
@@ -942,6 +944,8 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 		err = audit_filter(msg_type, AUDIT_FILTER_USER);
 		if (err == 1) { /* match or error */
+			char *str = data;
+
 			err = 0;
 			if (msg_type == AUDIT_USER_TTY) {
 				err = tty_audit_push();
@@ -950,19 +954,17 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			}
 			mutex_unlock(&audit_cmd_mutex);
 			audit_log_common_recv_msg(&ab, msg_type);
-			if (msg_type != AUDIT_USER_TTY)
+			if (msg_type != AUDIT_USER_TTY) {
+				/* ensure NULL termination */
+				str[data_len - 1] = '\0';
 				audit_log_format(ab, " msg='%.*s'",
 						 AUDIT_MESSAGE_TEXT_MAX,
-						 (char *)data);
-			else {
-				int size;
-
+						 str);
+			} else {
 				audit_log_format(ab, " data=");
-				size = nlmsg_len(nlh);
-				if (size > 0 &&
-				    ((unsigned char *)data)[size - 1] == '\0')
-					size--;
-				audit_log_n_untrustedstring(ab, data, size);
+				if (data_len > 0 && str[data_len - 1] == '\0')
+					data_len--;
+				audit_log_n_untrustedstring(ab, str, data_len);
 			}
 			audit_set_portid(ab, NETLINK_CB(skb).portid);
 			audit_log_end(ab);
@@ -971,7 +973,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		break;
 	case AUDIT_ADD_RULE:
 	case AUDIT_DEL_RULE:
-		if (nlmsg_len(nlh) < sizeof(struct audit_rule_data))
+		if (data_len < sizeof(struct audit_rule_data))
 			return -EINVAL;
 		if (audit_enabled == AUDIT_LOCKED) {
 			audit_log_common_recv_msg(&ab, AUDIT_CONFIG_CHANGE);
@@ -980,7 +982,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			return -EPERM;
 		}
 		err = audit_rule_change(msg_type, NETLINK_CB(skb).portid,
-					   seq, data, nlmsg_len(nlh));
+					   seq, data, data_len);
 		break;
 	case AUDIT_LIST_RULES:
 		err = audit_list_rules_send(skb, seq);
@@ -994,7 +996,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	case AUDIT_MAKE_EQUIV: {
 		void *bufp = data;
 		u32 sizes[2];
-		size_t msglen = nlmsg_len(nlh);
+		size_t msglen = data_len;
 		char *old, *new;
 
 		err = -EINVAL;
@@ -1070,7 +1072,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 		memset(&s, 0, sizeof(s));
 		/* guard against past and future API changes */
-		memcpy(&s, data, min_t(size_t, sizeof(s), nlmsg_len(nlh)));
+		memcpy(&s, data, min_t(size_t, sizeof(s), data_len));
 		/* check if new data is valid */
 		if ((s.enabled != 0 && s.enabled != 1) ||
 		    (s.log_passwd != 0 && s.log_passwd != 1))
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 42b7251c597f..a71ff9965cba 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -434,6 +434,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 	bufp = data->buf;
 	for (i = 0; i < data->field_count; i++) {
 		struct audit_field *f = &entry->rule.fields[i];
+		u32 f_val;
 
 		err = -EINVAL;
 
@@ -442,12 +443,12 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 			goto exit_free;
 
 		f->type = data->fields[i];
-		f->val = data->values[i];
+		f_val = data->values[i];
 
 		/* Support legacy tests for a valid loginuid */
-		if ((f->type == AUDIT_LOGINUID) && (f->val == AUDIT_UID_UNSET)) {
+		if ((f->type == AUDIT_LOGINUID) && (f_val == AUDIT_UID_UNSET)) {
 			f->type = AUDIT_LOGINUID_SET;
-			f->val = 0;
+			f_val = 0;
 			entry->rule.pflags |= AUDIT_LOGINUID_LEGACY;
 		}
 
@@ -463,7 +464,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 		case AUDIT_SUID:
 		case AUDIT_FSUID:
 		case AUDIT_OBJ_UID:
-			f->uid = make_kuid(current_user_ns(), f->val);
+			f->uid = make_kuid(current_user_ns(), f_val);
 			if (!uid_valid(f->uid))
 				goto exit_free;
 			break;
@@ -472,11 +473,12 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 		case AUDIT_SGID:
 		case AUDIT_FSGID:
 		case AUDIT_OBJ_GID:
-			f->gid = make_kgid(current_user_ns(), f->val);
+			f->gid = make_kgid(current_user_ns(), f_val);
 			if (!gid_valid(f->gid))
 				goto exit_free;
 			break;
 		case AUDIT_ARCH:
+			f->val = f_val;
 			entry->rule.arch_f = f;
 			break;
 		case AUDIT_SUBJ_USER:
@@ -489,11 +491,13 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 		case AUDIT_OBJ_TYPE:
 		case AUDIT_OBJ_LEV_LOW:
 		case AUDIT_OBJ_LEV_HIGH:
-			str = audit_unpack_string(&bufp, &remain, f->val);
-			if (IS_ERR(str))
+			str = audit_unpack_string(&bufp, &remain, f_val);
+			if (IS_ERR(str)) {
+				err = PTR_ERR(str);
 				goto exit_free;
-			entry->rule.buflen += f->val;
-
+			}
+			entry->rule.buflen += f_val;
+			f->lsm_str = str;
 			err = security_audit_rule_init(f->type, f->op, str,
 						       (void **)&f->lsm_rule);
 			/* Keep currently invalid fields around in case they
@@ -502,68 +506,71 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 				pr_warn("audit rule for LSM \'%s\' is invalid\n",
 					str);
 				err = 0;
-			}
-			if (err) {
-				kfree(str);
+			} else if (err)
 				goto exit_free;
-			} else
-				f->lsm_str = str;
 			break;
 		case AUDIT_WATCH:
-			str = audit_unpack_string(&bufp, &remain, f->val);
-			if (IS_ERR(str))
+			str = audit_unpack_string(&bufp, &remain, f_val);
+			if (IS_ERR(str)) {
+				err = PTR_ERR(str);
 				goto exit_free;
-			entry->rule.buflen += f->val;
-
-			err = audit_to_watch(&entry->rule, str, f->val, f->op);
+			}
+			err = audit_to_watch(&entry->rule, str, f_val, f->op);
 			if (err) {
 				kfree(str);
 				goto exit_free;
 			}
+			entry->rule.buflen += f_val;
 			break;
 		case AUDIT_DIR:
-			str = audit_unpack_string(&bufp, &remain, f->val);
-			if (IS_ERR(str))
+			str = audit_unpack_string(&bufp, &remain, f_val);
+			if (IS_ERR(str)) {
+				err = PTR_ERR(str);
 				goto exit_free;
-			entry->rule.buflen += f->val;
-
+			}
 			err = audit_make_tree(&entry->rule, str, f->op);
 			kfree(str);
 			if (err)
 				goto exit_free;
+			entry->rule.buflen += f_val;
 			break;
 		case AUDIT_INODE:
+			f->val = f_val;
 			err = audit_to_inode(&entry->rule, f);
 			if (err)
 				goto exit_free;
 			break;
 		case AUDIT_FILTERKEY:
-			if (entry->rule.filterkey || f->val > AUDIT_MAX_KEY_LEN)
+			if (entry->rule.filterkey || f_val > AUDIT_MAX_KEY_LEN)
 				goto exit_free;
-			str = audit_unpack_string(&bufp, &remain, f->val);
-			if (IS_ERR(str))
+			str = audit_unpack_string(&bufp, &remain, f_val);
+			if (IS_ERR(str)) {
+				err = PTR_ERR(str);
 				goto exit_free;
-			entry->rule.buflen += f->val;
+			}
+			entry->rule.buflen += f_val;
 			entry->rule.filterkey = str;
 			break;
 		case AUDIT_EXE:
-			if (entry->rule.exe || f->val > PATH_MAX)
+			if (entry->rule.exe || f_val > PATH_MAX)
 				goto exit_free;
-			str = audit_unpack_string(&bufp, &remain, f->val);
+			str = audit_unpack_string(&bufp, &remain, f_val);
 			if (IS_ERR(str)) {
 				err = PTR_ERR(str);
 				goto exit_free;
 			}
-			entry->rule.buflen += f->val;
-
-			audit_mark = audit_alloc_mark(&entry->rule, str, f->val);
+			audit_mark = audit_alloc_mark(&entry->rule, str, f_val);
 			if (IS_ERR(audit_mark)) {
 				kfree(str);
 				err = PTR_ERR(audit_mark);
 				goto exit_free;
 			}
+			entry->rule.buflen += f_val;
 			entry->rule.exe = audit_mark;
 			break;
+		default:
+			f->val = f_val;
+			break;
 		}
 	}
 
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f32f73fa5d3a..5fbd77d52602 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2095,7 +2095,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
 	unsigned long flags;
 	pgoff_t end;
 
-	VM_BUG_ON_PAGE(is_huge_zero_page(page), page);
+	VM_BUG_ON_PAGE(is_huge_zero_page(head), head);
 	VM_BUG_ON_PAGE(!PageLocked(page), page);
 	VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
 	VM_BUG_ON_PAGE(!PageCompound(page), page);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index be4629c344a6..9f172906cc88 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -640,7 +640,7 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
 
 	frh = nlmsg_data(nlh);
 	frh->family = ops->family;
-	frh->table = rule->table;
+	frh->table = rule->table < 256 ? rule->table : RT_TABLE_COMPAT;
 	if (nla_put_u32(skb, FRA_TABLE, rule->table))
 		goto nla_put_failure;
 	if (nla_put_u32(skb, FRA_SUPPRESS_PREFIXLEN, rule->suppress_prefixlen))
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 5da864997495..85c7e250c7a8 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -784,8 +784,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
 					found++;
 					break;
 				}
-				if (rt_can_ecmp)
-					fallback_ins = fallback_ins ?: ins;
+				fallback_ins = fallback_ins ?: ins;
 				goto next_iter;
 			}
 
@@ -825,7 +824,9 @@ next_iter:
 	}
 
 	if (fallback_ins && !found) {
-		/* No ECMP-able route found, replace first non-ECMP one */
+		/* No matching route with same ecmp-able-ness found, replace
+		 * first matching route
+		 */
 		ins = fallback_ins;
 		iter = *ins;
 		found++;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 27c93baed708..2c4743f2d50e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3069,6 +3069,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg)
 		 */
 		cfg->fc_nlinfo.nlh->nlmsg_flags &= ~(NLM_F_EXCL |
 						     NLM_F_REPLACE);
+		cfg->fc_nlinfo.nlh->nlmsg_flags |= NLM_F_CREATE;
 		nhn++;
 	}
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ca7de02e0a6e..52f9742c438a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -943,16 +943,22 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 				elem_parse_failed = true;
 			break;
 		case WLAN_EID_VHT_OPERATION:
-			if (elen >= sizeof(struct ieee80211_vht_operation))
+			if (elen >= sizeof(struct ieee80211_vht_operation)) {
 				elems->vht_operation = (void *)pos;
-			else
-				elem_parse_failed = true;
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+				break;
+			}
+			elem_parse_failed = true;
 			break;
 		case WLAN_EID_OPMODE_NOTIF:
-			if (elen > 0)
+			if (elen > 0) {
 				elems->opmode_notif = pos;
-			else
-				elem_parse_failed = true;
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+				break;
+			}
+			elem_parse_failed = true;
 			break;
 		case WLAN_EID_MESH_ID:
 			elems->mesh_id = pos;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 025487436438..205865292ba3 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1003,7 +1003,8 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
 	if (nlk->netlink_bind && groups) {
 		int group;
 
-		for (group = 0; group < nlk->ngroups; group++) {
+		/* nl_groups is a u32, so cap the maximum groups we can bind */
+		for (group = 0; group < BITS_PER_TYPE(u32); group++) {
 			if (!test_bit(group, &groups))
 				continue;
 			err = nlk->netlink_bind(net, group + 1);
@@ -1022,7 +1023,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
 			netlink_insert(sk, nladdr->nl_pid) :
 			netlink_autobind(sock);
 		if (err) {
-			netlink_undo_bind(nlk->ngroups, groups, sk);
+			netlink_undo_bind(BITS_PER_TYPE(u32), groups, sk);
 			return err;
 		}
 	}
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index de03b7b49e05..18904313bd4e 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -141,6 +141,7 @@ static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
 	if (!atomic_read(&head->ht.nelems))
 		return -1;
 
+	flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
 	fl_clear_masked_range(&skb_key, &head->mask);
 
 	info = skb_tunnel_info(skb);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index bfd068679710..1a3c75347f48 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -177,6 +177,16 @@ sctp_chunk_length_valid(struct sctp_chunk *chunk,
 	return 1;
 }
 
+/* Check for format error in an ABORT chunk */
+static inline bool sctp_err_chunk_valid(struct sctp_chunk *chunk)
+{
+	struct sctp_errhdr *err;
+
+	sctp_walk_errors(err, chunk->chunk_hdr);
+
+	return (void *)err == (void *)chunk->chunk_end;
+}
+
 /**********************************************************
  * These are the state functions for handling chunk events.
  **********************************************************/
@@ -2159,6 +2169,9 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
 		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 
+	if (!sctp_err_chunk_valid(chunk))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	return __sctp_sf_do_9_1_abort(net, ep, asoc, type, arg, commands);
 }
 
@@ -2201,6 +2214,9 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(struct net *net,
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
 		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 
+	if (!sctp_err_chunk_valid(chunk))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* Stop the T2-shutdown timer. */
 	sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
 			SCTP_TO(SCTP_EVENT_TIMEOUT_T2_SHUTDOWN));
@@ -2466,6 +2482,9 @@ sctp_disposition_t sctp_sf_do_9_1_abort(struct net *net,
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
 		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 
+	if (!sctp_err_chunk_valid(chunk))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	return __sctp_sf_do_9_1_abort(net, ep, asoc, type, arg, commands);
 }
 
@@ -2482,15 +2501,9 @@ static sctp_disposition_t __sctp_sf_do_9_1_abort(struct net *net,
 
 	/* See if we have an error cause code in the chunk.  */
 	len = ntohs(chunk->chunk_hdr->length);
-	if (len >= sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_errhdr)) {
-
-		sctp_errhdr_t *err;
-		sctp_walk_errors(err, chunk->chunk_hdr);
-		if ((void *)err != (void *)chunk->chunk_end)
-			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
+	if (len >= sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_errhdr))
 		error = ((sctp_errhdr_t *)chunk->skb->data)->cause;
-	}
 
 	sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR, SCTP_ERROR(ECONNRESET));
 	/* ASSOC_FAILED will DELETE_TCB. */
diff --git a/net/wireless/ethtool.c b/net/wireless/ethtool.c
index e9e91298c70d..3cedf2c2b60b 100644
--- a/net/wireless/ethtool.c
+++ b/net/wireless/ethtool.c
@@ -6,9 +6,13 @@
 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct device *pdev = wiphy_dev(wdev->wiphy);
 
-	strlcpy(info->driver, wiphy_dev(wdev->wiphy)->driver->name,
-		sizeof(info->driver));
+	if (pdev->driver)
+		strlcpy(info->driver, pdev->driver->name,
+			sizeof(info->driver));
+	else
+		strlcpy(info->driver, "N/A", sizeof(info->driver));
 
 	strlcpy(info->version, init_utsname()->release, sizeof(info->version));
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index bb19be78aed7..9823bef65e5e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -333,6 +333,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 	[NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
 	[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
 	[NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
+	[NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 },
 	[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
 	[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
 	[NL80211_ATTR_PID] = { .type = NLA_U32 },
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c
index 72b19e62f626..c0807b82399a 100644
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -1441,13 +1441,15 @@ int pcm512x_probe(struct device *dev, struct regmap *regmap)
 	}
 
 	pcm512x->sclk = devm_clk_get(dev, NULL);
-	if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
-		return -EPROBE_DEFER;
+	if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER) {
+		ret = -EPROBE_DEFER;
+		goto err;
+	}
 	if (!IS_ERR(pcm512x->sclk)) {
 		ret = clk_prepare_enable(pcm512x->sclk);
 		if (ret != 0) {
 			dev_err(dev, "Failed to enable SCLK: %d\n", ret);
-			return ret;
+			goto err;
 		}
 	}
 
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 08bfc91c686f..a04672411bef 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -4363,7 +4363,7 @@ static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm)
 			continue;
 		if (w->power) {
 			dapm_seq_insert(w, &down_list, false);
-			w->power = 0;
+			w->new_power = 0;
 			powerdown = 1;
 		}
 	}
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 280bb5cab87f..9df0c8102dc0 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2979,16 +2979,16 @@ static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe,
 	ssize_t offset = 0;
 
 	/* FE state */
-	offset += snprintf(buf + offset, size - offset,
+	offset += scnprintf(buf + offset, size - offset,
 			"[%s - %s]\n", fe->dai_link->name,
 			stream ? "Capture" : "Playback");
 
-	offset += snprintf(buf + offset, size - offset, "State: %s\n",
+	offset += scnprintf(buf + offset, size - offset, "State: %s\n",
 	                dpcm_state_string(fe->dpcm[stream].state));
 
 	if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&
 	    (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))
-		offset += snprintf(buf + offset, size - offset,
+		offset += scnprintf(buf + offset, size - offset,
 				"Hardware Params: "
 				"Format = %s, Channels = %d, Rate = %d\n",
 				snd_pcm_format_name(params_format(params)),
@@ -2996,10 +2996,10 @@ static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe,
 				params_rate(params));
 
 	/* BEs state */
-	offset += snprintf(buf + offset, size - offset, "Backends:\n");
+	offset += scnprintf(buf + offset, size - offset, "Backends:\n");
 
 	if (list_empty(&fe->dpcm[stream].be_clients)) {
-		offset += snprintf(buf + offset, size - offset,
+		offset += scnprintf(buf + offset, size - offset,
 				" No active DSP links\n");
 		goto out;
 	}
@@ -3008,16 +3008,16 @@ static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe,
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		params = &dpcm->hw_params;
 
-		offset += snprintf(buf + offset, size - offset,
+		offset += scnprintf(buf + offset, size - offset,
 				"- %s\n", be->dai_link->name);
 
-		offset += snprintf(buf + offset, size - offset,
+		offset += scnprintf(buf + offset, size - offset,
 				"   State: %s\n",
 				dpcm_state_string(be->dpcm[stream].state));
 
 		if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) &&
 		    (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP))
-			offset += snprintf(buf + offset, size - offset,
+			offset += scnprintf(buf + offset, size - offset,
 				"   Hardware Params: "
 				"Format = %s, Channels = %d, Rate = %d\n",
 				snd_pcm_format_name(params_format(params)),
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index a53fef0c673b..ade6abda9f46 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2930,6 +2930,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 
 				continue;
 			}
+			actions->ms.map = map;
 			top = pstack__peek(browser->pstack);
 			if (top == &browser->hists->dso_filter) {
 				/*
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c0dff5337a50..4e4bb5dd2dcd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2045,12 +2045,12 @@ int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 	if (slots->generation != ghc->generation)
 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);
 
-	if (unlikely(!ghc->memslot))
-		return kvm_write_guest(kvm, ghc->gpa, data, len);
-
 	if (kvm_is_error_hva(ghc->hva))
 		return -EFAULT;
 
+	if (unlikely(!ghc->memslot))
+		return kvm_write_guest(kvm, ghc->gpa, data, len);
+
 	r = __copy_to_user((void __user *)ghc->hva, data, len);
 	if (r)
 		return -EFAULT;
@@ -2071,12 +2071,12 @@ int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 	if (slots->generation != ghc->generation)
 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);
 
-	if (unlikely(!ghc->memslot))
-		return kvm_read_guest(kvm, ghc->gpa, data, len);
-
 	if (kvm_is_error_hva(ghc->hva))
 		return -EFAULT;
 
+	if (unlikely(!ghc->memslot))
+		return kvm_read_guest(kvm, ghc->gpa, data, len);
+
 	r = __copy_from_user(data, (void __user *)ghc->hva, len);
 	if (r)
 		return -EFAULT;