From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.9 commit in: /
Date: Wed, 11 Mar 2020 10:15:31 +0000 (UTC) [thread overview]
Message-ID: <1583921718.5ae8d5d8898db4969ed428409fc7a49c51849663.mpagano@gentoo> (raw)
commit: 5ae8d5d8898db4969ed428409fc7a49c51849663
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Mar 11 10:15:18 2020 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Mar 11 10:15:18 2020 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=5ae8d5d8
Linux patch 4.9.216
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1215_linux-4.9.216.patch | 2992 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 2996 insertions(+)
diff --git a/0000_README b/0000_README
index 76947fa..bb20a18 100644
--- a/0000_README
+++ b/0000_README
@@ -903,6 +903,10 @@ Patch: 1214_linux-4.9.215.patch
From: http://www.kernel.org
Desc: Linux 4.9.215
+Patch: 1215_linux-4.9.216.patch
+From: http://www.kernel.org
+Desc: Linux 4.9.216
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1215_linux-4.9.216.patch b/1215_linux-4.9.216.patch
new file mode 100644
index 0000000..92f6664
--- /dev/null
+++ b/1215_linux-4.9.216.patch
@@ -0,0 +1,2992 @@
+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;
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