Re: Linux 5.4.254

[Greg Kroah-Hartman]

diff --git a/Makefile b/Makefile
index a0e3daefb01d..bf7299823095 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 4
-SUBLEVEL = 253
+SUBLEVEL = 254
 EXTRAVERSION =
 NAME = Kleptomaniac Octopus
 
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 5d4c76a77a9f..f1072b10913c 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -394,8 +394,7 @@ setup_memory(void *kernel_end)
 extern void setup_memory(void *);
 #endif /* !CONFIG_DISCONTIGMEM */
 
-int __init
-page_is_ram(unsigned long pfn)
+int page_is_ram(unsigned long pfn)
 {
 	struct memclust_struct * cluster;
 	struct memdesc_struct * memdesc;
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 3613cfb83c6d..8d7a4a2caf55 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -222,8 +222,8 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
 
 	/* Round the lowest possible end address up to a PMD boundary. */
 	end = (start + len + PMD_SIZE - 1) & PMD_MASK;
-	if (end >= TASK_SIZE_MAX)
-		end = TASK_SIZE_MAX;
+	if (end >= DEFAULT_MAP_WINDOW)
+		end = DEFAULT_MAP_WINDOW;
 	end -= len;
 
 	if (end > start) {
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 537c0dd4c3d4..9cbd86cf0deb 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -986,4 +986,6 @@ enum taa_mitigations {
 	TAA_MITIGATION_TSX_DISABLED,
 };
 
+extern bool gds_ucode_mitigated(void);
+
 #endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 11f09df72f51..fcffee447ba1 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -72,6 +72,7 @@ static const int amd_erratum_1054[] =
 static const int amd_zenbleed[] =
 	AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0x30, 0x0, 0x4f, 0xf),
 			   AMD_MODEL_RANGE(0x17, 0x60, 0x0, 0x7f, 0xf),
+			   AMD_MODEL_RANGE(0x17, 0x90, 0x0, 0x91, 0xf),
 			   AMD_MODEL_RANGE(0x17, 0xa0, 0x0, 0xaf, 0xf));
 
 static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index fcfe891c1e8e..0c0c2cb038ad 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -450,8 +450,6 @@ static bool pku_disabled;
 
 static __always_inline void setup_pku(struct cpuinfo_x86 *c)
 {
-	struct pkru_state *pk;
-
 	/* check the boot processor, plus compile options for PKU: */
 	if (!cpu_feature_enabled(X86_FEATURE_PKU))
 		return;
@@ -462,9 +460,6 @@ static __always_inline void setup_pku(struct cpuinfo_x86 *c)
 		return;
 
 	cr4_set_bits(X86_CR4_PKE);
-	pk = get_xsave_addr(&init_fpstate.xsave, XFEATURE_PKRU);
-	if (pk)
-		pk->pkru = init_pkru_value;
 	/*
 	 * Seting X86_CR4_PKE will cause the X86_FEATURE_OSPKE
 	 * cpuid bit to be set.  We need to ensure that we
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2ee3da99bc1d..8dd1d1c81c79 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -226,8 +226,6 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 
 u64 __read_mostly host_xcr0;
 
-extern bool gds_ucode_mitigated(void);
-
 struct kmem_cache *x86_fpu_cache;
 EXPORT_SYMBOL_GPL(x86_fpu_cache);
 
diff --git a/arch/x86/mm/pkeys.c b/arch/x86/mm/pkeys.c
index c6f84c0b5d7a..ca77af96033b 100644
--- a/arch/x86/mm/pkeys.c
+++ b/arch/x86/mm/pkeys.c
@@ -10,7 +10,6 @@
 
 #include <asm/cpufeature.h>             /* boot_cpu_has, ...            */
 #include <asm/mmu_context.h>            /* vma_pkey()                   */
-#include <asm/fpu/internal.h>		/* init_fpstate			*/
 
 int __execute_only_pkey(struct mm_struct *mm)
 {
@@ -154,7 +153,6 @@ static ssize_t init_pkru_read_file(struct file *file, char __user *user_buf,
 static ssize_t init_pkru_write_file(struct file *file,
 		 const char __user *user_buf, size_t count, loff_t *ppos)
 {
-	struct pkru_state *pk;
 	char buf[32];
 	ssize_t len;
 	u32 new_init_pkru;
@@ -177,10 +175,6 @@ static ssize_t init_pkru_write_file(struct file *file,
 		return -EINVAL;
 
 	WRITE_ONCE(init_pkru_value, new_init_pkru);
-	pk = get_xsave_addr(&init_fpstate.xsave, XFEATURE_PKRU);
-	if (!pk)
-		return -EINVAL;
-	pk->pkru = new_init_pkru;
 	return count;
 }
 
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 1c39cd12b755..233c31337679 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -6555,6 +6555,7 @@ static int __init binder_init(void)
 
 err_alloc_device_names_failed:
 	debugfs_remove_recursive(binder_debugfs_dir_entry_root);
+	binder_alloc_shrinker_exit();
 
 	return ret;
 }
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 7e48ed7c9c8e..f766e889d241 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -1037,6 +1037,12 @@ int binder_alloc_shrinker_init(void)
 	return ret;
 }
 
+void binder_alloc_shrinker_exit(void)
+{
+	unregister_shrinker(&binder_shrinker);
+	list_lru_destroy(&binder_alloc_lru);
+}
+
 /**
  * check_buffer() - verify that buffer/offset is safe to access
  * @alloc: binder_alloc for this proc
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
index 288d0f478aa3..02a19afd9506 100644
--- a/drivers/android/binder_alloc.h
+++ b/drivers/android/binder_alloc.h
@@ -122,6 +122,7 @@ extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
 						  int is_async);
 extern void binder_alloc_init(struct binder_alloc *alloc);
 extern int binder_alloc_shrinker_init(void);
+extern void binder_alloc_shrinker_exit(void);
 extern void binder_alloc_vma_close(struct binder_alloc *alloc);
 extern struct binder_buffer *
 binder_alloc_prepare_to_free(struct binder_alloc *alloc,
diff --git a/drivers/dma/mcf-edma.c b/drivers/dma/mcf-edma.c
index e12b754e6398..60d3c5f09ad6 100644
--- a/drivers/dma/mcf-edma.c
+++ b/drivers/dma/mcf-edma.c
@@ -191,7 +191,13 @@ static int mcf_edma_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	chans = pdata->dma_channels;
+	if (!pdata->dma_channels) {
+		dev_info(&pdev->dev, "setting default channel number to 64");
+		chans = 64;
+	} else {
+		chans = pdata->dma_channels;
+	}
+
 	len = sizeof(*mcf_edma) + sizeof(*mcf_chan) * chans;
 	mcf_edma = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
 	if (!mcf_edma)
@@ -203,11 +209,6 @@ static int mcf_edma_probe(struct platform_device *pdev)
 	mcf_edma->drvdata = &mcf_data;
 	mcf_edma->big_endian = 1;
 
-	if (!mcf_edma->n_chans) {
-		dev_info(&pdev->dev, "setting default channel number to 64");
-		mcf_edma->n_chans = 64;
-	}
-
 	mutex_init(&mcf_edma->fsl_edma_mutex);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 3008ab258fa8..1d7d4b8d810a 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -402,6 +402,12 @@ enum desc_status {
 	 * of a channel can be BUSY at any time.
 	 */
 	BUSY,
+	/*
+	 * Pause was called while descriptor was BUSY. Due to hardware
+	 * limitations, only termination is possible for descriptors
+	 * that have been paused.
+	 */
+	PAUSED,
 	/*
 	 * Sitting on the channel work_list but xfer done
 	 * by PL330 core
@@ -2035,7 +2041,7 @@ static inline void fill_queue(struct dma_pl330_chan *pch)
 	list_for_each_entry(desc, &pch->work_list, node) {
 
 		/* If already submitted */
-		if (desc->status == BUSY)
+		if (desc->status == BUSY || desc->status == PAUSED)
 			continue;
 
 		ret = pl330_submit_req(pch->thread, desc);
@@ -2322,6 +2328,7 @@ static int pl330_pause(struct dma_chan *chan)
 {
 	struct dma_pl330_chan *pch = to_pchan(chan);
 	struct pl330_dmac *pl330 = pch->dmac;
+	struct dma_pl330_desc *desc;
 	unsigned long flags;
 
 	pm_runtime_get_sync(pl330->ddma.dev);
@@ -2331,6 +2338,10 @@ static int pl330_pause(struct dma_chan *chan)
 	_stop(pch->thread);
 	spin_unlock(&pl330->lock);
 
+	list_for_each_entry(desc, &pch->work_list, node) {
+		if (desc->status == BUSY)
+			desc->status = PAUSED;
+	}
 	spin_unlock_irqrestore(&pch->lock, flags);
 	pm_runtime_mark_last_busy(pl330->ddma.dev);
 	pm_runtime_put_autosuspend(pl330->ddma.dev);
@@ -2421,7 +2432,7 @@ pl330_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
 		else if (running && desc == running)
 			transferred =
 				pl330_get_current_xferred_count(pch, desc);
-		else if (desc->status == BUSY)
+		else if (desc->status == BUSY || desc->status == PAUSED)
 			/*
 			 * Busy but not running means either just enqueued,
 			 * or finished and not yet marked done
@@ -2438,6 +2449,9 @@ pl330_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
 			case DONE:
 				ret = DMA_COMPLETE;
 				break;
+			case PAUSED:
+				ret = DMA_PAUSED;
+				break;
 			case PREP:
 			case BUSY:
 				ret = DMA_IN_PROGRESS;
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 21a36cf88974..4e28e89b51dc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -955,7 +955,7 @@ nouveau_connector_get_modes(struct drm_connector *connector)
 	/* Determine display colour depth for everything except LVDS now,
 	 * DP requires this before mode_valid() is called.
 	 */
-	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode)
+	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 		nouveau_connector_detect_depth(connector);
 
 	/* Find the native mode if this is a digital panel, if we didn't
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
index 478b4723d0f9..c88ceb486f3b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
@@ -121,6 +121,7 @@ void gk104_grctx_generate_r418800(struct gf100_gr *);
 
 extern const struct gf100_grctx_func gk110_grctx;
 void gk110_grctx_generate_r419eb0(struct gf100_gr *);
+void gk110_grctx_generate_r419f78(struct gf100_gr *);
 
 extern const struct gf100_grctx_func gk110b_grctx;
 extern const struct gf100_grctx_func gk208_grctx;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
index 304e9d268bad..f894f8254824 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
@@ -916,7 +916,9 @@ static void
 gk104_grctx_generate_r419f78(struct gf100_gr *gr)
 {
 	struct nvkm_device *device = gr->base.engine.subdev.device;
-	nvkm_mask(device, 0x419f78, 0x00000001, 0x00000000);
+
+	/* bit 3 set disables loads in fp helper invocations, we need it enabled */
+	nvkm_mask(device, 0x419f78, 0x00000009, 0x00000000);
 }
 
 void
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110.c
index 86547cfc38dc..e88740d4e54d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110.c
@@ -820,6 +820,15 @@ gk110_grctx_generate_r419eb0(struct gf100_gr *gr)
 	nvkm_mask(device, 0x419eb0, 0x00001000, 0x00001000);
 }
 
+void
+gk110_grctx_generate_r419f78(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+
+	/* bit 3 set disables loads in fp helper invocations, we need it enabled */
+	nvkm_mask(device, 0x419f78, 0x00000008, 0x00000000);
+}
+
 const struct gf100_grctx_func
 gk110_grctx = {
 	.main  = gf100_grctx_generate_main,
@@ -852,4 +861,5 @@ gk110_grctx = {
 	.gpc_tpc_nr = gk104_grctx_generate_gpc_tpc_nr,
 	.r418800 = gk104_grctx_generate_r418800,
 	.r419eb0 = gk110_grctx_generate_r419eb0,
+	.r419f78 = gk110_grctx_generate_r419f78,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110b.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110b.c
index ebb947bd1446..086e4d49e112 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk110b.c
@@ -101,4 +101,5 @@ gk110b_grctx = {
 	.gpc_tpc_nr = gk104_grctx_generate_gpc_tpc_nr,
 	.r418800 = gk104_grctx_generate_r418800,
 	.r419eb0 = gk110_grctx_generate_r419eb0,
+	.r419f78 = gk110_grctx_generate_r419f78,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk208.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk208.c
index 4d40512b5c99..0bf438c3f7cb 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk208.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk208.c
@@ -566,4 +566,5 @@ gk208_grctx = {
 	.dist_skip_table = gf117_grctx_generate_dist_skip_table,
 	.gpc_tpc_nr = gk104_grctx_generate_gpc_tpc_nr,
 	.r418800 = gk104_grctx_generate_r418800,
+	.r419f78 = gk110_grctx_generate_r419f78,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
index 0b3964e6b36e..acdf0932a99e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
@@ -991,4 +991,5 @@ gm107_grctx = {
 	.r406500 = gm107_grctx_generate_r406500,
 	.gpc_tpc_nr = gk104_grctx_generate_gpc_tpc_nr,
 	.r419e00 = gm107_grctx_generate_r419e00,
+	.r419f78 = gk110_grctx_generate_r419f78,
 };
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index b4f394f05863..44553eccb30d 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -99,7 +99,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
 	platform_set_drvdata(pdev, indio_dev);
 
 	state->ec = ec->ec_dev;
-	state->msg = devm_kzalloc(&pdev->dev,
+	state->msg = devm_kzalloc(&pdev->dev, sizeof(*state->msg) +
 				max((u16)sizeof(struct ec_params_motion_sense),
 				state->ec->max_response), GFP_KERNEL);
 	if (!state->msg)
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index 10924f122072..65d6bf34614c 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -12191,6 +12191,7 @@ static void free_cntrs(struct hfi1_devdata *dd)
 
 	if (dd->synth_stats_timer.function)
 		del_timer_sync(&dd->synth_stats_timer);
+	cancel_work_sync(&dd->update_cntr_work);
 	ppd = (struct hfi1_pportdata *)(dd + 1);
 	for (i = 0; i < dd->num_pports; i++, ppd++) {
 		kfree(ppd->cntrs);
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index fa09d511a8ed..baf31258f5c9 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -247,7 +247,7 @@ extern void dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp);
 extern int dsp_cmx_conf(struct dsp *dsp, u32 conf_id);
 extern void dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb);
 extern void dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb);
-extern void dsp_cmx_send(void *arg);
+extern void dsp_cmx_send(struct timer_list *arg);
 extern void dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb);
 extern int dsp_cmx_del_conf_member(struct dsp *dsp);
 extern int dsp_cmx_del_conf(struct dsp_conf *conf);
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index 6d2088fbaf69..1b73af501397 100644
--- a/drivers/isdn/mISDN/dsp_cmx.c
+++ b/drivers/isdn/mISDN/dsp_cmx.c
@@ -1625,7 +1625,7 @@ static u16	dsp_count; /* last sample count */
 static int	dsp_count_valid; /* if we have last sample count */
 
 void
-dsp_cmx_send(void *arg)
+dsp_cmx_send(struct timer_list *arg)
 {
 	struct dsp_conf *conf;
 	struct dsp_conf_member *member;
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 038e72a84b33..5b954012e394 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -1200,7 +1200,7 @@ static int __init dsp_init(void)
 	}
 
 	/* set sample timer */
-	timer_setup(&dsp_spl_tl, (void *)dsp_cmx_send, 0);
+	timer_setup(&dsp_spl_tl, dsp_cmx_send, 0);
 	dsp_spl_tl.expires = jiffies + dsp_tics;
 	dsp_spl_jiffies = dsp_spl_tl.expires;
 	add_timer(&dsp_spl_tl);
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index 52307dce08ba..0c392b41a858 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -339,13 +339,7 @@ static void moxart_transfer_pio(struct moxart_host *host)
 				return;
 			}
 			for (len = 0; len < remain && len < host->fifo_width;) {
-				/* SCR data must be read in big endian. */
-				if (data->mrq->cmd->opcode == SD_APP_SEND_SCR)
-					*sgp = ioread32be(host->base +
-							  REG_DATA_WINDOW);
-				else
-					*sgp = ioread32(host->base +
-							REG_DATA_WINDOW);
+				*sgp = ioread32(host->base + REG_DATA_WINDOW);
 				sgp++;
 				len += 4;
 			}
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index dcaefb47d1f2..afd327e88cf5 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4451,7 +4451,9 @@ void bond_setup(struct net_device *bond_dev)
 
 	bond_dev->hw_features = BOND_VLAN_FEATURES |
 				NETIF_F_HW_VLAN_CTAG_RX |
-				NETIF_F_HW_VLAN_CTAG_FILTER;
+				NETIF_F_HW_VLAN_CTAG_FILTER |
+				NETIF_F_HW_VLAN_STAG_RX |
+				NETIF_F_HW_VLAN_STAG_FILTER;
 
 	bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
 	bond_dev->features |= bond_dev->hw_features;
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index bc313d85fe13..ce1ab8d59eb0 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -873,12 +873,22 @@ static int ibmvnic_login(struct net_device *netdev)
 
 static void release_login_buffer(struct ibmvnic_adapter *adapter)
 {
+	if (!adapter->login_buf)
+		return;
+
+	dma_unmap_single(&adapter->vdev->dev, adapter->login_buf_token,
+			 adapter->login_buf_sz, DMA_TO_DEVICE);
 	kfree(adapter->login_buf);
 	adapter->login_buf = NULL;
 }
 
 static void release_login_rsp_buffer(struct ibmvnic_adapter *adapter)
 {
+	if (!adapter->login_rsp_buf)
+		return;
+
+	dma_unmap_single(&adapter->vdev->dev, adapter->login_rsp_buf_token,
+			 adapter->login_rsp_buf_sz, DMA_FROM_DEVICE);
 	kfree(adapter->login_rsp_buf);
 	adapter->login_rsp_buf = NULL;
 }
@@ -4298,11 +4308,6 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq,
 	struct ibmvnic_login_buffer *login = adapter->login_buf;
 	int i;
 
-	dma_unmap_single(dev, adapter->login_buf_token, adapter->login_buf_sz,
-			 DMA_TO_DEVICE);
-	dma_unmap_single(dev, adapter->login_rsp_buf_token,
-			 adapter->login_rsp_buf_sz, DMA_FROM_DEVICE);
-
 	/* If the number of queues requested can't be allocated by the
 	 * server, the login response will return with code 1. We will need
 	 * to resend the login buffer with fewer queues requested.
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
index 61fcfd8b39b4..7fa805bb0e38 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
@@ -211,8 +211,7 @@ static u16 mlx5_get_max_vfs(struct mlx5_core_dev *dev)
 		host_total_vfs = MLX5_GET(query_esw_functions_out, out,
 					  host_params_context.host_total_vfs);
 		kvfree(out);
-		if (host_total_vfs)
-			return host_total_vfs;
+		return host_total_vfs;
 	}
 
 done:
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 309a0dd16bdc..51cc8768d910 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1672,7 +1672,7 @@ static bool tun_can_build_skb(struct tun_struct *tun, struct tun_file *tfile,
 	if (zerocopy)
 		return false;
 
-	if (SKB_DATA_ALIGN(len + TUN_RX_PAD) +
+	if (SKB_DATA_ALIGN(len + TUN_RX_PAD + XDP_PACKET_HEADROOM) +
 	    SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) > PAGE_SIZE)
 		return false;
 
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index d5d7b2f98edc..6de507d88f5f 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -905,6 +905,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
 		goto out_cleanup_connect_q;
 
 	if (!new) {
+		nvme_start_freeze(&ctrl->ctrl);
 		nvme_start_queues(&ctrl->ctrl);
 		if (!nvme_wait_freeze_timeout(&ctrl->ctrl, NVME_IO_TIMEOUT)) {
 			/*
@@ -913,6 +914,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
 			 * to be safe.
 			 */
 			ret = -ENODEV;
+			nvme_unfreeze(&ctrl->ctrl);
 			goto out_wait_freeze_timed_out;
 		}
 		blk_mq_update_nr_hw_queues(ctrl->ctrl.tagset,
@@ -958,7 +960,6 @@ static void nvme_rdma_teardown_io_queues(struct nvme_rdma_ctrl *ctrl,
 		bool remove)
 {
 	if (ctrl->ctrl.queue_count > 1) {
-		nvme_start_freeze(&ctrl->ctrl);
 		nvme_stop_queues(&ctrl->ctrl);
 		nvme_sync_io_queues(&ctrl->ctrl);
 		nvme_rdma_stop_io_queues(ctrl);
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 4250081595c1..61296032ce6d 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1707,6 +1707,7 @@ static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new)
 		goto out_cleanup_connect_q;
 
 	if (!new) {
+		nvme_start_freeze(ctrl);
 		nvme_start_queues(ctrl);
 		if (!nvme_wait_freeze_timeout(ctrl, NVME_IO_TIMEOUT)) {
 			/*
@@ -1715,6 +1716,7 @@ static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new)
 			 * to be safe.
 			 */
 			ret = -ENODEV;
+			nvme_unfreeze(ctrl);
 			goto out_wait_freeze_timed_out;
 		}
 		blk_mq_update_nr_hw_queues(ctrl->tagset,
@@ -1837,7 +1839,6 @@ static void nvme_tcp_teardown_io_queues(struct nvme_ctrl *ctrl,
 	if (ctrl->queue_count <= 1)
 		return;
 	blk_mq_quiesce_queue(ctrl->admin_q);
-	nvme_start_freeze(ctrl);
 	nvme_stop_queues(ctrl);
 	nvme_sync_io_queues(ctrl);
 	nvme_tcp_stop_io_queues(ctrl);
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 0068963bb933..0b7e9b1a8946 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1581,7 +1581,7 @@ NCR_700_intr(int irq, void *dev_id)
 				printk("scsi%d (%d:%d) PHASE MISMATCH IN SEND MESSAGE %d remain, return %p[%04x], phase %s\n", host->host_no, pun, lun, count, (void *)temp, temp - hostdata->pScript, sbcl_to_string(NCR_700_readb(host, SBCL_REG)));
 #endif
 				resume_offset = hostdata->pScript + Ent_SendMessagePhaseMismatch;
-			} else if(dsp >= to32bit(&slot->pSG[0].ins) &&
+			} else if (slot && dsp >= to32bit(&slot->pSG[0].ins) &&
 				  dsp <= to32bit(&slot->pSG[NCR_700_SG_SEGMENTS].ins)) {
 				int data_transfer = NCR_700_readl(host, DBC_REG) & 0xffffff;
 				int SGcount = (dsp - to32bit(&slot->pSG[0].ins))/sizeof(struct NCR_700_SG_List);
diff --git a/drivers/scsi/raid_class.c b/drivers/scsi/raid_class.c
index 898a0bdf8df6..711252e52d8e 100644
--- a/drivers/scsi/raid_class.c
+++ b/drivers/scsi/raid_class.c
@@ -248,6 +248,7 @@ int raid_component_add(struct raid_template *r,struct device *raid_dev,
 	return 0;
 
 err_out:
+	put_device(&rc->dev);
 	list_del(&rc->node);
 	rd->component_count--;
 	put_device(component_dev);
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 5b313226f11c..0330890cc55d 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -311,7 +311,7 @@ static ssize_t proc_scsi_write(struct file *file, const char __user *buf,
 			       size_t length, loff_t *ppos)
 {
 	int host, channel, id, lun;
-	char *buffer, *p;
+	char *buffer, *end, *p;
 	int err;
 
 	if (!buf || length > PAGE_SIZE)
@@ -326,10 +326,14 @@ static ssize_t proc_scsi_write(struct file *file, const char __user *buf,
 		goto out;
 
 	err = -EINVAL;
-	if (length < PAGE_SIZE)
-		buffer[length] = '\0';
-	else if (buffer[PAGE_SIZE-1])
-		goto out;
+	if (length < PAGE_SIZE) {
+		end = buffer + length;
+		*end = '\0';
+	} else {
+		end = buffer + PAGE_SIZE - 1;
+		if (*end)
+			goto out;
+	}
 
 	/*
 	 * Usage: echo "scsi add-single-device 0 1 2 3" >/proc/scsi/scsi
@@ -338,10 +342,10 @@ static ssize_t proc_scsi_write(struct file *file, const char __user *buf,
 	if (!strncmp("scsi add-single-device", buffer, 22)) {
 		p = buffer + 23;
 
-		host = simple_strtoul(p, &p, 0);
-		channel = simple_strtoul(p + 1, &p, 0);
-		id = simple_strtoul(p + 1, &p, 0);
-		lun = simple_strtoul(p + 1, &p, 0);
+		host    = (p     < end) ? simple_strtoul(p, &p, 0) : 0;
+		channel = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
+		id      = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
+		lun     = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
 
 		err = scsi_add_single_device(host, channel, id, lun);
 
@@ -352,10 +356,10 @@ static ssize_t proc_scsi_write(struct file *file, const char __user *buf,
 	} else if (!strncmp("scsi remove-single-device", buffer, 25)) {
 		p = buffer + 26;
 
-		host = simple_strtoul(p, &p, 0);
-		channel = simple_strtoul(p + 1, &p, 0);
-		id = simple_strtoul(p + 1, &p, 0);
-		lun = simple_strtoul(p + 1, &p, 0);
+		host    = (p     < end) ? simple_strtoul(p, &p, 0) : 0;
+		channel = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
+		id      = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
+		lun     = (p + 1 < end) ? simple_strtoul(p + 1, &p, 0) : 0;
 
 		err = scsi_remove_single_device(host, channel, id, lun);
 	}
diff --git a/drivers/scsi/snic/snic_disc.c b/drivers/scsi/snic/snic_disc.c
index 7cf871323b2c..c445853c623e 100644
--- a/drivers/scsi/snic/snic_disc.c
+++ b/drivers/scsi/snic/snic_disc.c
@@ -317,6 +317,7 @@ snic_tgt_create(struct snic *snic, struct snic_tgt_id *tgtid)
 			      "Snic Tgt: device_add, with err = %d\n",
 			      ret);
 
+		put_device(&tgt->dev);
 		put_device(&snic->shost->shost_gendev);
 		spin_lock_irqsave(snic->shost->host_lock, flags);
 		list_del(&tgt->list);
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 8d1b19b2322f..823088c7b199 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1526,10 +1526,6 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
  */
 static enum blk_eh_timer_return storvsc_eh_timed_out(struct scsi_cmnd *scmnd)
 {
-#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
-	if (scmnd->device->host->transportt == fc_transport_template)
-		return fc_eh_timed_out(scmnd);
-#endif
 	return BLK_EH_RESET_TIMER;
 }
 
diff --git a/drivers/usb/common/usb-conn-gpio.c b/drivers/usb/common/usb-conn-gpio.c
index ed204cbb63ea..67d00d0ef621 100644
--- a/drivers/usb/common/usb-conn-gpio.c
+++ b/drivers/usb/common/usb-conn-gpio.c
@@ -38,6 +38,7 @@ struct usb_conn_info {
 	struct gpio_desc *vbus_gpiod;
 	int id_irq;
 	int vbus_irq;
+	bool initial_detection;
 };
 
 /**
@@ -82,11 +83,13 @@ static void usb_conn_detect_cable(struct work_struct *work)
 	dev_dbg(info->dev, "role %d/%d, gpios: id %d, vbus %d\n",
 		info->last_role, role, id, vbus);
 
-	if (info->last_role == role) {
+	if (!info->initial_detection && info->last_role == role) {
 		dev_warn(info->dev, "repeated role: %d\n", role);
 		return;
 	}
 
+	info->initial_detection = false;
+
 	if (info->last_role == USB_ROLE_HOST)
 		regulator_disable(info->vbus);
 
@@ -206,6 +209,7 @@ static int usb_conn_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, info);
 
 	/* Perform initial detection */
+	info->initial_detection = true;
 	usb_conn_queue_dwork(info, 0);
 
 	return 0;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index bda9fd7157e4..73d3408c6a65 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -3589,9 +3589,14 @@ static irqreturn_t dwc3_check_event_buf(struct dwc3_event_buffer *evt)
 	u32 reg;
 
 	if (pm_runtime_suspended(dwc->dev)) {
+		dwc->pending_events = true;
+		/*
+		 * Trigger runtime resume. The get() function will be balanced
+		 * after processing the pending events in dwc3_process_pending
+		 * events().
+		 */
 		pm_runtime_get(dwc->dev);
 		disable_irq_nosync(dwc->irq_gadget);
-		dwc->pending_events = true;
 		return IRQ_HANDLED;
 	}
 
@@ -3827,6 +3832,8 @@ void dwc3_gadget_process_pending_events(struct dwc3 *dwc)
 {
 	if (dwc->pending_events) {
 		dwc3_interrupt(dwc->irq_gadget, dwc->ev_buf);
+		dwc3_thread_interrupt(dwc->irq_gadget, dwc->ev_buf);
+		pm_runtime_put(dwc->dev);
 		dwc->pending_events = false;
 		enable_irq(dwc->irq_gadget);
 	}
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index de62421d9670..dcc4778d1ae9 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -318,7 +318,8 @@ static int alauda_get_media_status(struct us_data *us, unsigned char *data)
 	rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe,
 		command, 0xc0, 0, 1, data, 2);
 
-	usb_stor_dbg(us, "Media status %02X %02X\n", data[0], data[1]);
+	if (rc == USB_STOR_XFER_GOOD)
+		usb_stor_dbg(us, "Media status %02X %02X\n", data[0], data[1]);
 
 	return rc;
 }
@@ -454,10 +455,14 @@ static int alauda_init_media(struct us_data *us)
 static int alauda_check_media(struct us_data *us)
 {
 	struct alauda_info *info = (struct alauda_info *) us->extra;
-	unsigned char status[2];
+	unsigned char *status = us->iobuf;
 	int rc;
 
 	rc = alauda_get_media_status(us, status);
+	if (rc != USB_STOR_XFER_GOOD) {
+		status[0] = 0xF0;	/* Pretend there's no media */
+		status[1] = 0;
+	}
 
 	/* Check for no media or door open */
 	if ((status[0] & 0x80) || ((status[0] & 0x1F) == 0x10)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 19d2104c0462..e47f53e78089 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3989,8 +3989,11 @@ static noinline int find_free_extent(struct btrfs_root *root,
 			ret = 0;
 		}
 
-		if (unlikely(block_group->cached == BTRFS_CACHE_ERROR))
+		if (unlikely(block_group->cached == BTRFS_CACHE_ERROR)) {
+			if (!cache_block_group_error)
+				cache_block_group_error = -EIO;
 			goto loop;
+		}
 
 		/*
 		 * Ok we want to try and use the cluster allocator, so
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 95ddeb477797..04788940afaf 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4024,11 +4024,12 @@ int btree_write_cache_pages(struct address_space *mapping,
 			free_extent_buffer(eb);
 
 			/*
-			 * the filesystem may choose to bump up nr_to_write.
+			 * The filesystem may choose to bump up nr_to_write.
 			 * We have to make sure to honor the new nr_to_write
-			 * at any time
+			 * at any time.
 			 */
-			nr_to_write_done = wbc->nr_to_write <= 0;
+			nr_to_write_done = (wbc->sync_mode == WB_SYNC_NONE &&
+					    wbc->nr_to_write <= 0);
 		}
 		pagevec_release(&pvec);
 		cond_resched();
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 53ec342eb787..4eed9500f33a 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -1112,9 +1112,17 @@ int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty)
 
 int __nilfs_mark_inode_dirty(struct inode *inode, int flags)
 {
+	struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
 	struct buffer_head *ibh;
 	int err;
 
+	/*
+	 * Do not dirty inodes after the log writer has been detached
+	 * and its nilfs_root struct has been freed.
+	 */
+	if (unlikely(nilfs_purging(nilfs)))
+		return 0;
+
 	err = nilfs_load_inode_block(inode, &ibh);
 	if (unlikely(err)) {
 		nilfs_msg(inode->i_sb, KERN_WARNING,
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index d9e0b2b2b555..04e1e671b613 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -2845,6 +2845,7 @@ void nilfs_detach_log_writer(struct super_block *sb)
 		nilfs_segctor_destroy(nilfs->ns_writer);
 		nilfs->ns_writer = NULL;
 	}
+	set_nilfs_purging(nilfs);
 
 	/* Force to free the list of dirty files */
 	spin_lock(&nilfs->ns_inode_lock);
@@ -2857,4 +2858,5 @@ void nilfs_detach_log_writer(struct super_block *sb)
 	up_write(&nilfs->ns_segctor_sem);
 
 	nilfs_dispose_list(nilfs, &garbage_list, 1);
+	clear_nilfs_purging(nilfs);
 }
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 380a543c5b19..de6e24d80eb6 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -29,6 +29,7 @@ enum {
 	THE_NILFS_DISCONTINUED,	/* 'next' pointer chain has broken */
 	THE_NILFS_GC_RUNNING,	/* gc process is running */
 	THE_NILFS_SB_DIRTY,	/* super block is dirty */
+	THE_NILFS_PURGING,	/* disposing dirty files for cleanup */
 };
 
 /**
@@ -208,6 +209,7 @@ THE_NILFS_FNS(INIT, init)
 THE_NILFS_FNS(DISCONTINUED, discontinued)
 THE_NILFS_FNS(GC_RUNNING, gc_running)
 THE_NILFS_FNS(SB_DIRTY, sb_dirty)
+THE_NILFS_FNS(PURGING, purging)
 
 /*
  * Mount option operations
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 69b9ccbe1ad0..2dfa3331604e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -436,6 +436,9 @@ ieee80211_get_sband_iftype_data(const struct ieee80211_supported_band *sband,
 	if (WARN_ON(iftype >= NL80211_IFTYPE_MAX))
 		return NULL;
 
+	if (iftype == NL80211_IFTYPE_AP_VLAN)
+		iftype = NL80211_IFTYPE_AP;
+
 	for (i = 0; i < sband->n_iftype_data; i++)  {
 		const struct ieee80211_sband_iftype_data *data =
 			&sband->iftype_data[i];
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 7ab13f515749..a2d1ec4aba1a 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1013,6 +1013,29 @@ int __nft_release_basechain(struct nft_ctx *ctx);
 
 unsigned int nft_do_chain(struct nft_pktinfo *pkt, void *priv);
 
+static inline bool nft_use_inc(u32 *use)
+{
+	if (*use == UINT_MAX)
+		return false;
+
+	(*use)++;
+
+	return true;
+}
+
+static inline void nft_use_dec(u32 *use)
+{
+	WARN_ON_ONCE((*use)-- == 0);
+}
+
+/* For error and abort path: restore use counter to previous state. */
+static inline void nft_use_inc_restore(u32 *use)
+{
+	WARN_ON_ONCE(!nft_use_inc(use));
+}
+
+#define nft_use_dec_restore	nft_use_dec
+
 /**
  *	struct nft_table - nf_tables table
  *
@@ -1082,8 +1105,8 @@ struct nft_object {
 	struct list_head		list;
 	struct rhlist_head		rhlhead;
 	struct nft_object_hash_key	key;
-	u32				genmask:2,
-					use:30;
+	u32				genmask:2;
+	u32				use;
 	u64				handle;
 	/* runtime data below here */
 	const struct nft_object_ops	*ops ____cacheline_aligned;
@@ -1185,8 +1208,8 @@ struct nft_flowtable {
 	int				hooknum;
 	int				priority;
 	int				ops_len;
-	u32				genmask:2,
-					use:30;
+	u32				genmask:2;
+	u32				use;
 	u64				handle;
 	/* runtime data below here */
 	struct nf_hook_ops		*ops ____cacheline_aligned;
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 6433187a5cc4..7490b4f09bbb 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -185,7 +185,7 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
 
 	/* And store cached results */
 	icsk->icsk_pmtu_cookie = pmtu;
-	dp->dccps_mss_cache = cur_mps;
+	WRITE_ONCE(dp->dccps_mss_cache, cur_mps);
 
 	return cur_mps;
 }
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 3a3a2e1800be..cd868556452e 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -644,7 +644,7 @@ static int do_dccp_getsockopt(struct sock *sk, int level, int optname,
 		return dccp_getsockopt_service(sk, len,
 					       (__be32 __user *)optval, optlen);
 	case DCCP_SOCKOPT_GET_CUR_MPS:
-		val = dp->dccps_mss_cache;
+		val = READ_ONCE(dp->dccps_mss_cache);
 		break;
 	case DCCP_SOCKOPT_AVAILABLE_CCIDS:
 		return ccid_getsockopt_builtin_ccids(sk, len, optval, optlen);
@@ -766,7 +766,7 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 
 	trace_dccp_probe(sk, len);
 
-	if (len > dp->dccps_mss_cache)
+	if (len > READ_ONCE(dp->dccps_mss_cache))
 		return -EMSGSIZE;
 
 	lock_sock(sk);
@@ -799,6 +799,12 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		goto out_discard;
 	}
 
+	/* We need to check dccps_mss_cache after socket is locked. */
+	if (len > dp->dccps_mss_cache) {
+		rc = -EMSGSIZE;
+		goto out_discard;
+	}
+
 	skb_reserve(skb, sk->sk_prot->max_header);
 	rc = memcpy_from_msg(skb_put(skb, len), msg, len);
 	if (rc != 0)
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 118e19cabb72..74977ec77c57 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -196,7 +196,8 @@ static struct nd_opt_hdr *ndisc_next_option(struct nd_opt_hdr *cur,
 static inline int ndisc_is_useropt(const struct net_device *dev,
 				   struct nd_opt_hdr *opt)
 {
-	return opt->nd_opt_type == ND_OPT_RDNSS ||
+	return opt->nd_opt_type == ND_OPT_PREFIX_INFO ||
+		opt->nd_opt_type == ND_OPT_RDNSS ||
 		opt->nd_opt_type == ND_OPT_DNSSL ||
 		opt->nd_opt_type == ND_OPT_CAPTIVE_PORTAL ||
 		ndisc_ops_is_useropt(dev, opt->nd_opt_type);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 7d22bc8aa278..a1a1f715fb62 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -282,7 +282,7 @@ static int nft_delchain(struct nft_ctx *ctx)
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
 
-	ctx->table->use--;
+	nft_use_dec(&ctx->table->use);
 	nft_deactivate_next(ctx->net, ctx->chain);
 
 	return 0;
@@ -323,7 +323,7 @@ nf_tables_delrule_deactivate(struct nft_ctx *ctx, struct nft_rule *rule)
 	/* You cannot delete the same rule twice */
 	if (nft_is_active_next(ctx->net, rule)) {
 		nft_deactivate_next(ctx->net, rule);
-		ctx->chain->use--;
+		nft_use_dec(&ctx->chain->use);
 		return 0;
 	}
 	return -ENOENT;
@@ -412,7 +412,7 @@ static int nft_delset(const struct nft_ctx *ctx, struct nft_set *set)
 		return err;
 
 	nft_deactivate_next(ctx->net, set);
-	ctx->table->use--;
+	nft_use_dec(&ctx->table->use);
 
 	return err;
 }
@@ -444,7 +444,7 @@ static int nft_delobj(struct nft_ctx *ctx, struct nft_object *obj)
 		return err;
 
 	nft_deactivate_next(ctx->net, obj);
-	ctx->table->use--;
+	nft_use_dec(&ctx->table->use);
 
 	return err;
 }
@@ -478,7 +478,7 @@ static int nft_delflowtable(struct nft_ctx *ctx,
 		return err;
 
 	nft_deactivate_next(ctx->net, flowtable);
-	ctx->table->use--;
+	nft_use_dec(&ctx->table->use);
 
 	return err;
 }
@@ -1715,9 +1715,6 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	struct nft_rule **rules;
 	int err;
 
-	if (table->use == UINT_MAX)
-		return -EOVERFLOW;
-
 	if (nla[NFTA_CHAIN_HOOK]) {
 		struct nft_chain_hook hook;
 		struct nf_hook_ops *ops;
@@ -1794,6 +1791,11 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	if (err < 0)
 		goto err1;
 
+	if (!nft_use_inc(&table->use)) {
+		err = -EMFILE;
+		goto err_use;
+	}
+
 	err = rhltable_insert_key(&table->chains_ht, chain->name,
 				  &chain->rhlhead, nft_chain_ht_params);
 	if (err)
@@ -1811,11 +1813,12 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	if (nft_is_base_chain(chain))
 		nft_trans_chain_policy(trans) = policy;
 
-	table->use++;
 	list_add_tail_rcu(&chain->list, &table->chains);
 
 	return 0;
 err2:
+	nft_use_dec_restore(&table->use);
+err_use:
 	nf_tables_unregister_hook(net, table, chain);
 err1:
 	nf_tables_chain_destroy(ctx);
@@ -2831,9 +2834,6 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 			return -EINVAL;
 		handle = nf_tables_alloc_handle(table);
 
-		if (chain->use == UINT_MAX)
-			return -EOVERFLOW;
-
 		if (nla[NFTA_RULE_POSITION]) {
 			pos_handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_POSITION]));
 			old_rule = __nft_rule_lookup(chain, pos_handle);
@@ -2915,16 +2915,21 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 		expr = nft_expr_next(expr);
 	}
 
+	if (!nft_use_inc(&chain->use)) {
+		err = -EMFILE;
+		goto err2;
+	}
+
 	if (nlh->nlmsg_flags & NLM_F_REPLACE) {
 		trans = nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, rule);
 		if (trans == NULL) {
 			err = -ENOMEM;
-			goto err2;
+			goto err_destroy_flow_rule;
 		}
 		err = nft_delrule(&ctx, old_rule);
 		if (err < 0) {
 			nft_trans_destroy(trans);
-			goto err2;
+			goto err_destroy_flow_rule;
 		}
 
 		list_add_tail_rcu(&rule->list, &old_rule->list);
@@ -2932,7 +2937,7 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 		trans = nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, rule);
 		if (!trans) {
 			err = -ENOMEM;
-			goto err2;
+			goto err_destroy_flow_rule;
 		}
 
 		if (nlh->nlmsg_flags & NLM_F_APPEND) {
@@ -2948,7 +2953,6 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 		}
 	}
 	kvfree(info);
-	chain->use++;
 
 	if (nft_net->validate_state == NFT_VALIDATE_DO)
 		return nft_table_validate(net, table);
@@ -2962,6 +2966,9 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 	}
 
 	return 0;
+
+err_destroy_flow_rule:
+	nft_use_dec_restore(&chain->use);
 err2:
 	nft_rule_expr_deactivate(&ctx, rule, NFT_TRANS_PREPARE_ERROR);
 	nf_tables_rule_destroy(&ctx, rule);
@@ -3775,10 +3782,15 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
 	if (ops->privsize != NULL)
 		size = ops->privsize(nla, &desc);
 
+	if (!nft_use_inc(&table->use)) {
+		err = -EMFILE;
+		goto err1;
+	}
+
 	set = kvzalloc(sizeof(*set) + size + udlen, GFP_KERNEL);
 	if (!set) {
 		err = -ENOMEM;
-		goto err1;
+		goto err_alloc;
 	}
 
 	name = nla_strdup(nla[NFTA_SET_NAME], GFP_KERNEL);
@@ -3825,7 +3837,7 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
 		goto err4;
 
 	list_add_tail_rcu(&set->list, &table->sets);
-	table->use++;
+
 	return 0;
 
 err4:
@@ -3834,6 +3846,8 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
 	kfree(set->name);
 err2:
 	kvfree(set);
+err_alloc:
+	nft_use_dec_restore(&table->use);
 err1:
 	module_put(to_set_type(ops)->owner);
 	return err;
@@ -3920,9 +3934,6 @@ int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
 	struct nft_set_binding *i;
 	struct nft_set_iter iter;
 
-	if (set->use == UINT_MAX)
-		return -EOVERFLOW;
-
 	if (!list_empty(&set->bindings) && nft_set_is_anonymous(set))
 		return -EBUSY;
 
@@ -3947,10 +3958,12 @@ int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
 			return iter.err;
 	}
 bind:
+	if (!nft_use_inc(&set->use))
+		return -EMFILE;
+
 	binding->chain = ctx->chain;
 	list_add_tail_rcu(&binding->list, &set->bindings);
 	nft_set_trans_bind(ctx, set);
-	set->use++;
 
 	return 0;
 }
@@ -3974,7 +3987,7 @@ void nf_tables_activate_set(const struct nft_ctx *ctx, struct nft_set *set)
 	if (nft_set_is_anonymous(set))
 		nft_clear(ctx->net, set);
 
-	set->use++;
+	nft_use_inc_restore(&set->use);
 }
 EXPORT_SYMBOL_GPL(nf_tables_activate_set);
 
@@ -3990,17 +4003,17 @@ void nf_tables_deactivate_set(const struct nft_ctx *ctx, struct nft_set *set,
 		else
 			list_del_rcu(&binding->list);
 
-		set->use--;
+		nft_use_dec(&set->use);
 		break;
 	case NFT_TRANS_PREPARE:
 		if (nft_set_is_anonymous(set))
 			nft_deactivate_next(ctx->net, set);
 
-		set->use--;
+		nft_use_dec(&set->use);
 		return;
 	case NFT_TRANS_ABORT:
 	case NFT_TRANS_RELEASE:
-		set->use--;
+		nft_use_dec(&set->use);
 		/* fall through */
 	default:
 		nf_tables_unbind_set(ctx, set, binding,
@@ -4585,7 +4598,7 @@ void nft_set_elem_destroy(const struct nft_set *set, void *elem,
 		}
 	}
 	if (nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF))
-		(*nft_set_ext_obj(ext))->use--;
+		nft_use_dec(&(*nft_set_ext_obj(ext))->use);
 	kfree(elem);
 }
 EXPORT_SYMBOL_GPL(nft_set_elem_destroy);
@@ -4706,8 +4719,16 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 				     set->objtype, genmask);
 		if (IS_ERR(obj)) {
 			err = PTR_ERR(obj);
+			obj = NULL;
+			goto err2;
+		}
+
+		if (!nft_use_inc(&obj->use)) {
+			err = -EMFILE;
+			obj = NULL;
 			goto err2;
 		}
+
 		nft_set_ext_add(&tmpl, NFT_SET_EXT_OBJREF);
 	}
 
@@ -4772,10 +4793,8 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 		udata->len = ulen - 1;
 		nla_memcpy(&udata->data, nla[NFTA_SET_ELEM_USERDATA], ulen);
 	}
-	if (obj) {
+	if (obj)
 		*nft_set_ext_obj(ext) = obj;
-		obj->use++;
-	}
 
 	trans = nft_trans_elem_alloc(ctx, NFT_MSG_NEWSETELEM, set);
 	if (trans == NULL)
@@ -4821,13 +4840,14 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 err5:
 	kfree(trans);
 err4:
-	if (obj)
-		obj->use--;
 	kfree(elem.priv);
 err3:
 	if (nla[NFTA_SET_ELEM_DATA] != NULL)
 		nft_data_release(&elem.data.val, desc.type);
 err2:
+	if (obj)
+		nft_use_dec_restore(&obj->use);
+
 	nft_data_release(&elem.key.val, NFT_DATA_VALUE);
 err1:
 	return err;
@@ -4887,11 +4907,14 @@ static int nf_tables_newsetelem(struct net *net, struct sock *nlsk,
  */
 void nft_data_hold(const struct nft_data *data, enum nft_data_types type)
 {
+	struct nft_chain *chain;
+
 	if (type == NFT_DATA_VERDICT) {
 		switch (data->verdict.code) {
 		case NFT_JUMP:
 		case NFT_GOTO:
-			data->verdict.chain->use++;
+			chain = data->verdict.chain;
+			nft_use_inc_restore(&chain->use);
 			break;
 		}
 	}
@@ -4906,7 +4929,7 @@ static void nft_set_elem_activate(const struct net *net,
 	if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA))
 		nft_data_hold(nft_set_ext_data(ext), set->dtype);
 	if (nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF))
-		(*nft_set_ext_obj(ext))->use++;
+		nft_use_inc_restore(&(*nft_set_ext_obj(ext))->use);
 }
 
 static void nft_set_elem_deactivate(const struct net *net,
@@ -4918,7 +4941,7 @@ static void nft_set_elem_deactivate(const struct net *net,
 	if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA))
 		nft_data_release(nft_set_ext_data(ext), set->dtype);
 	if (nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF))
-		(*nft_set_ext_obj(ext))->use--;
+		nft_use_dec(&(*nft_set_ext_obj(ext))->use);
 }
 
 static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set,
@@ -5375,9 +5398,14 @@ static int nf_tables_newobj(struct net *net, struct sock *nlsk,
 
 	nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 
+	if (!nft_use_inc(&table->use))
+		return -EMFILE;
+
 	type = nft_obj_type_get(net, objtype);
-	if (IS_ERR(type))
-		return PTR_ERR(type);
+	if (IS_ERR(type)) {
+		err = PTR_ERR(type);
+		goto err_type;
+	}
 
 	obj = nft_obj_init(&ctx, type, nla[NFTA_OBJ_DATA]);
 	if (IS_ERR(obj)) {
@@ -5403,7 +5431,7 @@ static int nf_tables_newobj(struct net *net, struct sock *nlsk,
 		goto err4;
 
 	list_add_tail_rcu(&obj->list, &table->objects);
-	table->use++;
+
 	return 0;
 err4:
 	/* queued in transaction log */
@@ -5417,6 +5445,9 @@ static int nf_tables_newobj(struct net *net, struct sock *nlsk,
 	kfree(obj);
 err1:
 	module_put(type->owner);
+err_type:
+	nft_use_dec_restore(&table->use);
+
 	return err;
 }
 
@@ -5761,7 +5792,7 @@ void nf_tables_deactivate_flowtable(const struct nft_ctx *ctx,
 	case NFT_TRANS_PREPARE:
 	case NFT_TRANS_ABORT:
 	case NFT_TRANS_RELEASE:
-		flowtable->use--;
+		nft_use_dec(&flowtable->use);
 		/* fall through */
 	default:
 		return;
@@ -5967,9 +5998,14 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
 
 	nft_ctx_init(&ctx, net, skb, nlh, family, table, NULL, nla);
 
+	if (!nft_use_inc(&table->use))
+		return -EMFILE;
+
 	flowtable = kzalloc(sizeof(*flowtable), GFP_KERNEL);
-	if (!flowtable)
-		return -ENOMEM;
+	if (!flowtable) {
+		err = -ENOMEM;
+		goto flowtable_alloc;
+	}
 
 	flowtable->table = table;
 	flowtable->handle = nf_tables_alloc_handle(table);
@@ -6023,7 +6059,6 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
 		goto err6;
 
 	list_add_tail_rcu(&flowtable->list, &table->flowtables);
-	table->use++;
 
 	return 0;
 err6:
@@ -6041,6 +6076,9 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
 	kfree(flowtable->name);
 err1:
 	kfree(flowtable);
+flowtable_alloc:
+	nft_use_dec_restore(&table->use);
+
 	return err;
 }
 
@@ -7035,7 +7073,7 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)
 			 */
 			if (nft_set_is_anonymous(nft_trans_set(trans)) &&
 			    !list_empty(&nft_trans_set(trans)->bindings))
-				trans->ctx.table->use--;
+				nft_use_dec(&trans->ctx.table->use);
 
 			nf_tables_set_notify(&trans->ctx, nft_trans_set(trans),
 					     NFT_MSG_NEWSET, GFP_KERNEL);
@@ -7188,7 +7226,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 				kfree(nft_trans_chain_name(trans));
 				nft_trans_destroy(trans);
 			} else {
-				trans->ctx.table->use--;
+				nft_use_dec_restore(&trans->ctx.table->use);
 				nft_chain_del(trans->ctx.chain);
 				nf_tables_unregister_hook(trans->ctx.net,
 							  trans->ctx.table,
@@ -7196,25 +7234,25 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 			}
 			break;
 		case NFT_MSG_DELCHAIN:
-			trans->ctx.table->use++;
+			nft_use_inc_restore(&trans->ctx.table->use);
 			nft_clear(trans->ctx.net, trans->ctx.chain);
 			nft_trans_destroy(trans);
 			break;
 		case NFT_MSG_NEWRULE:
-			trans->ctx.chain->use--;
+			nft_use_dec_restore(&trans->ctx.chain->use);
 			list_del_rcu(&nft_trans_rule(trans)->list);
 			nft_rule_expr_deactivate(&trans->ctx,
 						 nft_trans_rule(trans),
 						 NFT_TRANS_ABORT);
 			break;
 		case NFT_MSG_DELRULE:
-			trans->ctx.chain->use++;
+			nft_use_inc_restore(&trans->ctx.chain->use);
 			nft_clear(trans->ctx.net, nft_trans_rule(trans));
 			nft_rule_expr_activate(&trans->ctx, nft_trans_rule(trans));
 			nft_trans_destroy(trans);
 			break;
 		case NFT_MSG_NEWSET:
-			trans->ctx.table->use--;
+			nft_use_dec_restore(&trans->ctx.table->use);
 			if (nft_trans_set_bound(trans)) {
 				nft_trans_destroy(trans);
 				break;
@@ -7222,7 +7260,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 			list_del_rcu(&nft_trans_set(trans)->list);
 			break;
 		case NFT_MSG_DELSET:
-			trans->ctx.table->use++;
+			nft_use_inc_restore(&trans->ctx.table->use);
 			nft_clear(trans->ctx.net, nft_trans_set(trans));
 			nft_trans_destroy(trans);
 			break;
@@ -7249,23 +7287,23 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 				nft_obj_destroy(&trans->ctx, nft_trans_obj_newobj(trans));
 				nft_trans_destroy(trans);
 			} else {
-				trans->ctx.table->use--;
+				nft_use_dec_restore(&trans->ctx.table->use);
 				nft_obj_del(nft_trans_obj(trans));
 			}
 			break;
 		case NFT_MSG_DELOBJ:
-			trans->ctx.table->use++;
+			nft_use_inc_restore(&trans->ctx.table->use);
 			nft_clear(trans->ctx.net, nft_trans_obj(trans));
 			nft_trans_destroy(trans);
 			break;
 		case NFT_MSG_NEWFLOWTABLE:
-			trans->ctx.table->use--;
+			nft_use_dec_restore(&trans->ctx.table->use);
 			list_del_rcu(&nft_trans_flowtable(trans)->list);
 			nft_unregister_flowtable_net_hooks(net,
 					nft_trans_flowtable(trans));
 			break;
 		case NFT_MSG_DELFLOWTABLE:
-			trans->ctx.table->use++;
+			nft_use_inc_restore(&trans->ctx.table->use);
 			nft_clear(trans->ctx.net, nft_trans_flowtable(trans));
 			nft_trans_destroy(trans);
 			break;
@@ -7685,8 +7723,9 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 			return PTR_ERR(chain);
 		if (nft_is_base_chain(chain))
 			return -EOPNOTSUPP;
+		if (!nft_use_inc(&chain->use))
+			return -EMFILE;
 
-		chain->use++;
 		data->verdict.chain = chain;
 		break;
 	}
@@ -7698,10 +7737,13 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 
 static void nft_verdict_uninit(const struct nft_data *data)
 {
+	struct nft_chain *chain;
+
 	switch (data->verdict.code) {
 	case NFT_JUMP:
 	case NFT_GOTO:
-		data->verdict.chain->use--;
+		chain = data->verdict.chain;
+		nft_use_dec(&chain->use);
 		break;
 	}
 }
@@ -7855,11 +7897,11 @@ int __nft_release_basechain(struct nft_ctx *ctx)
 	nf_tables_unregister_hook(ctx->net, ctx->chain->table, ctx->chain);
 	list_for_each_entry_safe(rule, nr, &ctx->chain->rules, list) {
 		list_del(&rule->list);
-		ctx->chain->use--;
+		nft_use_dec(&ctx->chain->use);
 		nf_tables_rule_release(ctx, rule);
 	}
 	nft_chain_del(ctx->chain);
-	ctx->table->use--;
+	nft_use_dec(&ctx->table->use);
 	nf_tables_chain_destroy(ctx);
 
 	return 0;
@@ -7896,29 +7938,29 @@ static void __nft_release_table(struct net *net, struct nft_table *table)
 		ctx.chain = chain;
 		list_for_each_entry_safe(rule, nr, &chain->rules, list) {
 			list_del(&rule->list);
-			chain->use--;
+			nft_use_dec(&chain->use);
 			nf_tables_rule_release(&ctx, rule);
 		}
 	}
 	list_for_each_entry_safe(flowtable, nf, &table->flowtables, list) {
 		list_del(&flowtable->list);
-		table->use--;
+		nft_use_dec(&table->use);
 		nf_tables_flowtable_destroy(flowtable);
 	}
 	list_for_each_entry_safe(set, ns, &table->sets, list) {
 		list_del(&set->list);
-		table->use--;
+		nft_use_dec(&table->use);
 		nft_set_destroy(set);
 	}
 	list_for_each_entry_safe(obj, ne, &table->objects, list) {
 		nft_obj_del(obj);
-		table->use--;
+		nft_use_dec(&table->use);
 		nft_obj_destroy(&ctx, obj);
 	}
 	list_for_each_entry_safe(chain, nc, &table->chains, list) {
 		ctx.chain = chain;
 		nft_chain_del(chain);
-		table->use--;
+		nft_use_dec(&table->use);
 		nf_tables_chain_destroy(&ctx);
 	}
 	list_del(&table->list);
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index ff5ac173e897..ca5d55a1d7d9 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -171,8 +171,10 @@ static int nft_flow_offload_init(const struct nft_ctx *ctx,
 	if (IS_ERR(flowtable))
 		return PTR_ERR(flowtable);
 
+	if (!nft_use_inc(&flowtable->use))
+		return -EMFILE;
+
 	priv->flowtable = flowtable;
-	flowtable->use++;
 
 	return nf_ct_netns_get(ctx->net, ctx->family);
 }
@@ -191,7 +193,7 @@ static void nft_flow_offload_activate(const struct nft_ctx *ctx,
 {
 	struct nft_flow_offload *priv = nft_expr_priv(expr);
 
-	priv->flowtable->use++;
+	nft_use_inc_restore(&priv->flowtable->use);
 }
 
 static void nft_flow_offload_destroy(const struct nft_ctx *ctx,
diff --git a/net/netfilter/nft_objref.c b/net/netfilter/nft_objref.c
index 7032b80592b2..f5028479c028 100644
--- a/net/netfilter/nft_objref.c
+++ b/net/netfilter/nft_objref.c
@@ -41,8 +41,10 @@ static int nft_objref_init(const struct nft_ctx *ctx,
 	if (IS_ERR(obj))
 		return -ENOENT;
 
+	if (!nft_use_inc(&obj->use))
+		return -EMFILE;
+
 	nft_objref_priv(expr) = obj;
-	obj->use++;
 
 	return 0;
 }
@@ -71,7 +73,7 @@ static void nft_objref_deactivate(const struct nft_ctx *ctx,
 	if (phase == NFT_TRANS_COMMIT)
 		return;
 
-	obj->use--;
+	nft_use_dec(&obj->use);
 }
 
 static void nft_objref_activate(const struct nft_ctx *ctx,
@@ -79,7 +81,7 @@ static void nft_objref_activate(const struct nft_ctx *ctx,
 {
 	struct nft_object *obj = nft_objref_priv(expr);
 
-	obj->use++;
+	nft_use_inc_restore(&obj->use);
 }
 
 static struct nft_expr_type nft_objref_type;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index fbe3434dcdc1..0582abf5ab71 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -363,18 +363,20 @@ static void __packet_set_status(struct packet_sock *po, void *frame, int status)
 {
 	union tpacket_uhdr h;
 
+	/* WRITE_ONCE() are paired with READ_ONCE() in __packet_get_status */
+
 	h.raw = frame;
 	switch (po->tp_version) {
 	case TPACKET_V1:
-		h.h1->tp_status = status;
+		WRITE_ONCE(h.h1->tp_status, status);
 		flush_dcache_page(pgv_to_page(&h.h1->tp_status));
 		break;
 	case TPACKET_V2:
-		h.h2->tp_status = status;
+		WRITE_ONCE(h.h2->tp_status, status);
 		flush_dcache_page(pgv_to_page(&h.h2->tp_status));
 		break;
 	case TPACKET_V3:
-		h.h3->tp_status = status;
+		WRITE_ONCE(h.h3->tp_status, status);
 		flush_dcache_page(pgv_to_page(&h.h3->tp_status));
 		break;
 	default:
@@ -391,17 +393,19 @@ static int __packet_get_status(const struct packet_sock *po, void *frame)
 
 	smp_rmb();
 
+	/* READ_ONCE() are paired with WRITE_ONCE() in __packet_set_status */
+
 	h.raw = frame;
 	switch (po->tp_version) {
 	case TPACKET_V1:
 		flush_dcache_page(pgv_to_page(&h.h1->tp_status));
-		return h.h1->tp_status;
+		return READ_ONCE(h.h1->tp_status);
 	case TPACKET_V2:
 		flush_dcache_page(pgv_to_page(&h.h2->tp_status));
-		return h.h2->tp_status;
+		return READ_ONCE(h.h2->tp_status);
 	case TPACKET_V3:
 		flush_dcache_page(pgv_to_page(&h.h3->tp_status));
-		return h.h3->tp_status;
+		return READ_ONCE(h.h3->tp_status);
 	default:
 		WARN(1, "TPACKET version not supported.\n");
 		BUG();
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 69034c8cc3b8..265a02b6ad09 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -773,12 +773,10 @@ static void dist_free(struct disttable *d)
  * signed 16 bit values.
  */
 
-static int get_dist_table(struct Qdisc *sch, struct disttable **tbl,
-			  const struct nlattr *attr)
+static int get_dist_table(struct disttable **tbl, const struct nlattr *attr)
 {
 	size_t n = nla_len(attr)/sizeof(__s16);
 	const __s16 *data = nla_data(attr);
-	spinlock_t *root_lock;
 	struct disttable *d;
 	int i;
 
@@ -793,13 +791,7 @@ static int get_dist_table(struct Qdisc *sch, struct disttable **tbl,
 	for (i = 0; i < n; i++)
 		d->table[i] = data[i];
 
-	root_lock = qdisc_root_sleeping_lock(sch);
-
-	spin_lock_bh(root_lock);
-	swap(*tbl, d);
-	spin_unlock_bh(root_lock);
-
-	dist_free(d);
+	*tbl = d;
 	return 0;
 }
 
@@ -956,6 +948,8 @@ static int netem_change(struct Qdisc *sch, struct nlattr *opt,
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
 	struct nlattr *tb[TCA_NETEM_MAX + 1];
+	struct disttable *delay_dist = NULL;
+	struct disttable *slot_dist = NULL;
 	struct tc_netem_qopt *qopt;
 	struct clgstate old_clg;
 	int old_loss_model = CLG_RANDOM;
@@ -969,6 +963,18 @@ static int netem_change(struct Qdisc *sch, struct nlattr *opt,
 	if (ret < 0)
 		return ret;
 
+	if (tb[TCA_NETEM_DELAY_DIST]) {
+		ret = get_dist_table(&delay_dist, tb[TCA_NETEM_DELAY_DIST]);
+		if (ret)
+			goto table_free;
+	}
+
+	if (tb[TCA_NETEM_SLOT_DIST]) {
+		ret = get_dist_table(&slot_dist, tb[TCA_NETEM_SLOT_DIST]);
+		if (ret)
+			goto table_free;
+	}
+
 	sch_tree_lock(sch);
 	/* backup q->clg and q->loss_model */
 	old_clg = q->clg;
@@ -978,26 +984,17 @@ static int netem_change(struct Qdisc *sch, struct nlattr *opt,
 		ret = get_loss_clg(q, tb[TCA_NETEM_LOSS]);
 		if (ret) {
 			q->loss_model = old_loss_model;
+			q->clg = old_clg;
 			goto unlock;
 		}
 	} else {
 		q->loss_model = CLG_RANDOM;
 	}
 
-	if (tb[TCA_NETEM_DELAY_DIST]) {
-		ret = get_dist_table(sch, &q->delay_dist,
-				     tb[TCA_NETEM_DELAY_DIST]);
-		if (ret)
-			goto get_table_failure;
-	}
-
-	if (tb[TCA_NETEM_SLOT_DIST]) {
-		ret = get_dist_table(sch, &q->slot_dist,
-				     tb[TCA_NETEM_SLOT_DIST]);
-		if (ret)
-			goto get_table_failure;
-	}
-
+	if (delay_dist)
+		swap(q->delay_dist, delay_dist);
+	if (slot_dist)
+		swap(q->slot_dist, slot_dist);
 	sch->limit = qopt->limit;
 
 	q->latency = PSCHED_TICKS2NS(qopt->latency);
@@ -1047,17 +1044,11 @@ static int netem_change(struct Qdisc *sch, struct nlattr *opt,
 
 unlock:
 	sch_tree_unlock(sch);
-	return ret;
 
-get_table_failure:
-	/* recover clg and loss_model, in case of
-	 * q->clg and q->loss_model were modified
-	 * in get_loss_clg()
-	 */
-	q->clg = old_clg;
-	q->loss_model = old_loss_model;
-
-	goto unlock;
+table_free:
+	dist_free(delay_dist);
+	dist_free(slot_dist);
+	return ret;
 }
 
 static int netem_init(struct Qdisc *sch, struct nlattr *opt,
diff --git a/tools/testing/radix-tree/regression1.c b/tools/testing/radix-tree/regression1.c
index a61c7bcbc72d..63f468bf8245 100644
--- a/tools/testing/radix-tree/regression1.c
+++ b/tools/testing/radix-tree/regression1.c
@@ -177,7 +177,7 @@ void regression1_test(void)
 	nr_threads = 2;
 	pthread_barrier_init(&worker_barrier, NULL, nr_threads);
 
-	threads = malloc(nr_threads * sizeof(pthread_t *));
+	threads = malloc(nr_threads * sizeof(*threads));
 
 	for (i = 0; i < nr_threads; i++) {
 		arg = i;
diff --git a/tools/testing/selftests/rseq/Makefile b/tools/testing/selftests/rseq/Makefile
index 215e1067f037..82ceca6aab96 100644
--- a/tools/testing/selftests/rseq/Makefile
+++ b/tools/testing/selftests/rseq/Makefile
@@ -4,8 +4,10 @@ ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
 CLANG_FLAGS += -no-integrated-as
 endif
 
+top_srcdir = ../../../..
+
 CFLAGS += -O2 -Wall -g -I./ -I../../../../usr/include/ -L$(OUTPUT) -Wl,-rpath=./ \
-	  $(CLANG_FLAGS)
+	  $(CLANG_FLAGS) -I$(top_srcdir)/tools/include
 LDLIBS += -lpthread -ldl
 
 # Own dependencies because we only want to build against 1st prerequisite, but
diff --git a/tools/testing/selftests/rseq/rseq.c b/tools/testing/selftests/rseq/rseq.c
index b736a5169aad..e20191fb40d4 100644
--- a/tools/testing/selftests/rseq/rseq.c
+++ b/tools/testing/selftests/rseq/rseq.c
@@ -29,6 +29,8 @@
 #include <dlfcn.h>
 #include <stddef.h>
 
+#include <linux/compiler.h>
+
 #include "../kselftest.h"
 #include "rseq.h"