diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 134dcf6bc650..99810310efdd 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -544,6 +544,18 @@ pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
 
 static int __init hugetlbpage_init(void)
 {
+	/*
+	 * HugeTLB pages are supported on maximum four page table
+	 * levels (PUD, CONT PMD, PMD, CONT PTE) for a given base
+	 * page size, corresponding to hugetlb_add_hstate() calls
+	 * here.
+	 *
+	 * HUGE_MAX_HSTATE should at least match maximum supported
+	 * HugeTLB page sizes on the platform. Any new addition to
+	 * supported HugeTLB page sizes will also require changing
+	 * HUGE_MAX_HSTATE as well.
+	 */
+	BUILD_BUG_ON(HUGE_MAX_HSTATE < 4);
 	if (pud_sect_supported())
 		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
 
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 5ed242897b0d..237f36d1e6c2 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -21,7 +21,7 @@ KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
 ifndef CONFIG_AS_IS_LLVM
 KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf))
 endif
-KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack
+KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack -std=gnu11
 KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
 KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float -mbackchain
 KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 4cbf306b8181..be0626a07dd8 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -21,7 +21,7 @@ UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
 
-KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
+KBUILD_CFLAGS := -std=gnu11 -fno-strict-aliasing -Wall -Wstrict-prototypes
 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
 KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index 256eee99afc8..e2e1ec99c999 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -16,6 +16,7 @@
 # define PAGES_NR		4
 #endif
 
+# define KEXEC_CONTROL_PAGE_SIZE	4096
 # define KEXEC_CONTROL_CODE_MAX_SIZE	2048
 
 #ifndef __ASSEMBLY__
@@ -44,7 +45,6 @@ struct kimage;
 /* Maximum address we can use for the control code buffer */
 # define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
 
-# define KEXEC_CONTROL_PAGE_SIZE	4096
 
 /* The native architecture */
 # define KEXEC_ARCH KEXEC_ARCH_386
@@ -59,9 +59,6 @@ struct kimage;
 /* Maximum address we can use for the control pages */
 # define KEXEC_CONTROL_MEMORY_LIMIT     (MAXMEM-1)
 
-/* Allocate one page for the pdp and the second for the code */
-# define KEXEC_CONTROL_PAGE_SIZE  (4096UL + 4096UL)
-
 /* The native architecture */
 # define KEXEC_ARCH KEXEC_ARCH_X86_64
 #endif
@@ -146,6 +143,19 @@ struct kimage_arch {
 };
 #else
 struct kimage_arch {
+	/*
+	 * This is a kimage control page, as it must not overlap with either
+	 * source or destination address ranges.
+	 */
+	pgd_t *pgd;
+	/*
+	 * The virtual mapping of the control code page itself is used only
+	 * during the transition, while the current kernel's pages are all
+	 * in place. Thus the intermediate page table pages used to map it
+	 * are not control pages, but instead just normal pages obtained
+	 * with get_zeroed_page(). And have to be tracked (below) so that
+	 * they can be freed.
+	 */
 	p4d_t *p4d;
 	pud_t *pud;
 	pmd_t *pmd;
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index e8cc042e4905..8992a6bce9f0 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -519,6 +519,10 @@ static __init void fix_erratum_688(void)
 
 static __init int init_amd_nbs(void)
 {
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
+	    boot_cpu_data.x86_vendor != X86_VENDOR_HYGON)
+		return 0;
+
 	amd_cache_northbridges();
 	amd_cache_gart();
 
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 24b6eaacc81e..5d61a342871b 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -149,7 +149,8 @@ static void free_transition_pgtable(struct kimage *image)
 	image->arch.pte = NULL;
 }
 
-static int init_transition_pgtable(struct kimage *image, pgd_t *pgd)
+static int init_transition_pgtable(struct kimage *image, pgd_t *pgd,
+				   unsigned long control_page)
 {
 	pgprot_t prot = PAGE_KERNEL_EXEC_NOENC;
 	unsigned long vaddr, paddr;
@@ -160,7 +161,7 @@ static int init_transition_pgtable(struct kimage *image, pgd_t *pgd)
 	pte_t *pte;
 
 	vaddr = (unsigned long)relocate_kernel;
-	paddr = __pa(page_address(image->control_code_page)+PAGE_SIZE);
+	paddr = control_page;
 	pgd += pgd_index(vaddr);
 	if (!pgd_present(*pgd)) {
 		p4d = (p4d_t *)get_zeroed_page(GFP_KERNEL);
@@ -219,7 +220,7 @@ static void *alloc_pgt_page(void *data)
 	return p;
 }
 
-static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
+static int init_pgtable(struct kimage *image, unsigned long control_page)
 {
 	struct x86_mapping_info info = {
 		.alloc_pgt_page	= alloc_pgt_page,
@@ -228,12 +229,12 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
 		.kernpg_flag	= _KERNPG_TABLE_NOENC,
 	};
 	unsigned long mstart, mend;
-	pgd_t *level4p;
 	int result;
 	int i;
 
-	level4p = (pgd_t *)__va(start_pgtable);
-	clear_page(level4p);
+	image->arch.pgd = alloc_pgt_page(image);
+	if (!image->arch.pgd)
+		return -ENOMEM;
 
 	if (cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT)) {
 		info.page_flag   |= _PAGE_ENC;
@@ -247,8 +248,8 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
 		mstart = pfn_mapped[i].start << PAGE_SHIFT;
 		mend   = pfn_mapped[i].end << PAGE_SHIFT;
 
-		result = kernel_ident_mapping_init(&info,
-						 level4p, mstart, mend);
+		result = kernel_ident_mapping_init(&info, image->arch.pgd,
+						   mstart, mend);
 		if (result)
 			return result;
 	}
@@ -263,8 +264,8 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
 		mstart = image->segment[i].mem;
 		mend   = mstart + image->segment[i].memsz;
 
-		result = kernel_ident_mapping_init(&info,
-						 level4p, mstart, mend);
+		result = kernel_ident_mapping_init(&info, image->arch.pgd,
+						   mstart, mend);
 
 		if (result)
 			return result;
@@ -274,15 +275,19 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
 	 * Prepare EFI systab and ACPI tables for kexec kernel since they are
 	 * not covered by pfn_mapped.
 	 */
-	result = map_efi_systab(&info, level4p);
+	result = map_efi_systab(&info, image->arch.pgd);
 	if (result)
 		return result;
 
-	result = map_acpi_tables(&info, level4p);
+	result = map_acpi_tables(&info, image->arch.pgd);
 	if (result)
 		return result;
 
-	return init_transition_pgtable(image, level4p);
+	/*
+	 * This must be last because the intermediate page table pages it
+	 * allocates will not be control pages and may overlap the image.
+	 */
+	return init_transition_pgtable(image, image->arch.pgd, control_page);
 }
 
 static void load_segments(void)
@@ -299,14 +304,14 @@ static void load_segments(void)
 
 int machine_kexec_prepare(struct kimage *image)
 {
-	unsigned long start_pgtable;
+	unsigned long control_page;
 	int result;
 
 	/* Calculate the offsets */
-	start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT;
+	control_page = page_to_pfn(image->control_code_page) << PAGE_SHIFT;
 
 	/* Setup the identity mapped 64bit page table */
-	result = init_pgtable(image, start_pgtable);
+	result = init_pgtable(image, control_page);
 	if (result)
 		return result;
 
@@ -353,13 +358,12 @@ void machine_kexec(struct kimage *image)
 #endif
 	}
 
-	control_page = page_address(image->control_code_page) + PAGE_SIZE;
+	control_page = page_address(image->control_code_page);
 	__memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
 
 	page_list[PA_CONTROL_PAGE] = virt_to_phys(control_page);
 	page_list[VA_CONTROL_PAGE] = (unsigned long)control_page;
-	page_list[PA_TABLE_PAGE] =
-	  (unsigned long)__pa(page_address(image->control_code_page));
+	page_list[PA_TABLE_PAGE] = (unsigned long)__pa(image->arch.pgd);
 
 	if (image->type == KEXEC_TYPE_DEFAULT)
 		page_list[PA_SWAP_PAGE] = (page_to_pfn(image->swap_page)
@@ -578,8 +582,7 @@ static void kexec_mark_crashkres(bool protect)
 
 	/* Don't touch the control code page used in crash_kexec().*/
 	control = PFN_PHYS(page_to_pfn(kexec_crash_image->control_code_page));
-	/* Control code page is located in the 2nd page. */
-	kexec_mark_range(crashk_res.start, control + PAGE_SIZE - 1, protect);
+	kexec_mark_range(crashk_res.start, control - 1, protect);
 	control += KEXEC_CONTROL_PAGE_SIZE;
 	kexec_mark_range(control, crashk_res.end, protect);
 }
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index dd808cf65c84..83a4b417b27b 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -155,8 +155,6 @@ static unsigned long ghes_estatus_pool_size_request;
 static struct ghes_estatus_cache *ghes_estatus_caches[GHES_ESTATUS_CACHES_SIZE];
 static atomic_t ghes_estatus_cache_alloced;
 
-static int ghes_panic_timeout __read_mostly = 30;
-
 static void __iomem *ghes_map(u64 pfn, enum fixed_addresses fixmap_idx)
 {
 	phys_addr_t paddr;
@@ -858,14 +856,16 @@ static void __ghes_panic(struct ghes *ghes,
 			 struct acpi_hest_generic_status *estatus,
 			 u64 buf_paddr, enum fixed_addresses fixmap_idx)
 {
+	const char *msg = GHES_PFX "Fatal hardware error";
+
 	__ghes_print_estatus(KERN_EMERG, ghes->generic, estatus);
 
 	ghes_clear_estatus(ghes, estatus, buf_paddr, fixmap_idx);
 
-	/* reboot to log the error! */
 	if (!panic_timeout)
-		panic_timeout = ghes_panic_timeout;
-	panic("Fatal hardware error!");
+		pr_emerg("%s but panic disabled\n", msg);
+
+	panic(msg);
 }
 
 static int ghes_proc(struct ghes *ghes)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 1acef5f3838f..5eb994ed5471 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1555,16 +1555,16 @@ clean_exit:
 	return ret;
 }
 
-static unsigned int kbps_from_pbn(unsigned int pbn)
+static uint32_t kbps_from_pbn(unsigned int pbn)
 {
-	unsigned int kbps = pbn;
+	uint64_t kbps = (uint64_t)pbn;
 
 	kbps *= (1000000 / PEAK_FACTOR_X1000);
 	kbps *= 8;
 	kbps *= 54;
 	kbps /= 64;
 
-	return kbps;
+	return (uint32_t)kbps;
 }
 
 static bool is_dsc_common_config_possible(struct dc_stream_state *stream,
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index 45596b211fb8..7c3bd539655b 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -296,7 +296,7 @@
 #define MAX_LANE_COUNT 4
 #define MAX_LINK_RATE HBR
 #define AUTO_TRAIN_RETRY 3
-#define MAX_HDCP_DOWN_STREAM_COUNT 10
+#define MAX_HDCP_DOWN_STREAM_COUNT 127
 #define MAX_CR_LEVEL 0x03
 #define MAX_EQ_LEVEL 0x03
 #define AUX_WAIT_TIMEOUT_MS 15
@@ -2011,7 +2011,7 @@ static bool it6505_hdcp_part2_ksvlist_check(struct it6505 *it6505)
 {
 	struct device *dev = &it6505->client->dev;
 	u8 av[5][4], bv[5][4];
-	int i, err;
+	int i, err, retry;
 
 	i = it6505_setup_sha1_input(it6505, it6505->sha1_input);
 	if (i <= 0) {
@@ -2020,22 +2020,28 @@ static bool it6505_hdcp_part2_ksvlist_check(struct it6505 *it6505)
 	}
 
 	it6505_sha1_digest(it6505, it6505->sha1_input, i, (u8 *)av);
+	/*1B-05 V' must retry 3 times */
+	for (retry = 0; retry < 3; retry++) {
+		err = it6505_get_dpcd(it6505, DP_AUX_HDCP_V_PRIME(0), (u8 *)bv,
+				      sizeof(bv));
 
-	err = it6505_get_dpcd(it6505, DP_AUX_HDCP_V_PRIME(0), (u8 *)bv,
-			      sizeof(bv));
+		if (err < 0) {
+			dev_err(dev, "Read V' value Fail %d", retry);
+			continue;
+		}
 
-	if (err < 0) {
-		dev_err(dev, "Read V' value Fail");
-		return false;
+		for (i = 0; i < 5; i++) {
+			if (bv[i][3] != av[i][0] || bv[i][2] != av[i][1] ||
+			    av[i][1] != av[i][2] || bv[i][0] != av[i][3])
+				break;
+
+			DRM_DEV_DEBUG_DRIVER(dev, "V' all match!! %d, %d", retry, i);
+			return true;
+		}
 	}
 
-	for (i = 0; i < 5; i++)
-		if (bv[i][3] != av[i][0] || bv[i][2] != av[i][1] ||
-		    bv[i][1] != av[i][2] || bv[i][0] != av[i][3])
-			return false;
-
-	DRM_DEV_DEBUG_DRIVER(dev, "V' all match!!");
-	return true;
+	DRM_DEV_DEBUG_DRIVER(dev, "V' NOT match!! %d", retry);
+	return false;
 }
 
 static void it6505_hdcp_wait_ksv_list(struct work_struct *work)
@@ -2069,15 +2075,12 @@ static void it6505_hdcp_wait_ksv_list(struct work_struct *work)
 	ksv_list_check = it6505_hdcp_part2_ksvlist_check(it6505);
 	DRM_DEV_DEBUG_DRIVER(dev, "ksv list ready, ksv list check %s",
 			     ksv_list_check ? "pass" : "fail");
-	if (ksv_list_check) {
-		it6505_set_bits(it6505, REG_HDCP_TRIGGER,
-				HDCP_TRIGGER_KSV_DONE, HDCP_TRIGGER_KSV_DONE);
+
+	if (ksv_list_check)
 		return;
-	}
+
 timeout:
-	it6505_set_bits(it6505, REG_HDCP_TRIGGER,
-			HDCP_TRIGGER_KSV_DONE | HDCP_TRIGGER_KSV_FAIL,
-			HDCP_TRIGGER_KSV_DONE | HDCP_TRIGGER_KSV_FAIL);
+	it6505_start_hdcp(it6505);
 }
 
 static void it6505_hdcp_work(struct work_struct *work)
@@ -2292,14 +2295,20 @@ static int it6505_process_hpd_irq(struct it6505 *it6505)
 	DRM_DEV_DEBUG_DRIVER(dev, "dp_irq_vector = 0x%02x", dp_irq_vector);
 
 	if (dp_irq_vector & DP_CP_IRQ) {
-		it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ,
-				HDCP_TRIGGER_CPIRQ);
-
 		bstatus = it6505_dpcd_read(it6505, DP_AUX_HDCP_BSTATUS);
 		if (bstatus < 0)
 			return bstatus;
 
 		DRM_DEV_DEBUG_DRIVER(dev, "Bstatus = 0x%02x", bstatus);
+
+		/*Check BSTATUS when recive CP_IRQ */
+		if (bstatus & DP_BSTATUS_R0_PRIME_READY &&
+		    it6505->hdcp_status == HDCP_AUTH_GOING)
+			it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ,
+					HDCP_TRIGGER_CPIRQ);
+		else if (bstatus & (DP_BSTATUS_REAUTH_REQ | DP_BSTATUS_LINK_FAILURE) &&
+			 it6505->hdcp_status == HDCP_AUTH_DONE)
+			it6505_start_hdcp(it6505);
 	}
 
 	ret = drm_dp_dpcd_read_link_status(&it6505->aux, link_status);
@@ -2419,7 +2428,11 @@ static void it6505_irq_hdcp_ksv_check(struct it6505 *it6505)
 {
 	struct device *dev = &it6505->client->dev;
 
-	DRM_DEV_DEBUG_DRIVER(dev, "HDCP event Interrupt");
+	DRM_DEV_DEBUG_DRIVER(dev, "HDCP repeater R0 event Interrupt");
+	/* 1B01 HDCP encription should start when R0 is ready*/
+	it6505_set_bits(it6505, REG_HDCP_TRIGGER,
+			HDCP_TRIGGER_KSV_DONE, HDCP_TRIGGER_KSV_DONE);
+
 	schedule_work(&it6505->hdcp_wait_ksv_list);
 }
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 9b98470593b0..20a418f64533 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -190,6 +190,13 @@ struct virtio_gpu_framebuffer {
 #define to_virtio_gpu_framebuffer(x) \
 	container_of(x, struct virtio_gpu_framebuffer, base)
 
+struct virtio_gpu_plane_state {
+	struct drm_plane_state base;
+	struct virtio_gpu_fence *fence;
+};
+#define to_virtio_gpu_plane_state(x) \
+	container_of(x, struct virtio_gpu_plane_state, base)
+
 struct virtio_gpu_queue {
 	struct virtqueue *vq;
 	spinlock_t qlock;
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index b8fcbca4527b..090200a814d0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -112,11 +112,28 @@ uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc)
 	return format;
 }
 
+static struct
+drm_plane_state *virtio_gpu_plane_duplicate_state(struct drm_plane *plane)
+{
+	struct virtio_gpu_plane_state *new;
+
+	if (WARN_ON(!plane->state))
+		return NULL;
+
+	new = kzalloc(sizeof(*new), GFP_KERNEL);
+	if (!new)
+		return NULL;
+
+	__drm_atomic_helper_plane_duplicate_state(plane, &new->base);
+
+	return &new->base;
+}
+
 static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
 	.update_plane		= drm_atomic_helper_update_plane,
 	.disable_plane		= drm_atomic_helper_disable_plane,
 	.reset			= drm_atomic_helper_plane_reset,
-	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_duplicate_state = virtio_gpu_plane_duplicate_state,
 	.atomic_destroy_state	= drm_atomic_helper_plane_destroy_state,
 };
 
@@ -174,11 +191,13 @@ static void virtio_gpu_resource_flush(struct drm_plane *plane,
 	struct drm_device *dev = plane->dev;
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_framebuffer *vgfb;
+	struct virtio_gpu_plane_state *vgplane_st;
 	struct virtio_gpu_object *bo;
 
 	vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
+	vgplane_st = to_virtio_gpu_plane_state(plane->state);
 	bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
-	if (vgfb->fence) {
+	if (vgplane_st->fence) {
 		struct virtio_gpu_object_array *objs;
 
 		objs = virtio_gpu_array_alloc(1);
@@ -187,13 +206,11 @@ static void virtio_gpu_resource_flush(struct drm_plane *plane,
 		virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]);
 		virtio_gpu_array_lock_resv(objs);
 		virtio_gpu_cmd_resource_flush(vgdev, bo->hw_res_handle, x, y,
-					      width, height, objs, vgfb->fence);
+					      width, height, objs,
+					      vgplane_st->fence);
 		virtio_gpu_notify(vgdev);
-
-		dma_fence_wait_timeout(&vgfb->fence->f, true,
+		dma_fence_wait_timeout(&vgplane_st->fence->f, true,
 				       msecs_to_jiffies(50));
-		dma_fence_put(&vgfb->fence->f);
-		vgfb->fence = NULL;
 	} else {
 		virtio_gpu_cmd_resource_flush(vgdev, bo->hw_res_handle, x, y,
 					      width, height, NULL, NULL);
@@ -283,20 +300,23 @@ static int virtio_gpu_plane_prepare_fb(struct drm_plane *plane,
 	struct drm_device *dev = plane->dev;
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_framebuffer *vgfb;
+	struct virtio_gpu_plane_state *vgplane_st;
 	struct virtio_gpu_object *bo;
 
 	if (!new_state->fb)
 		return 0;
 
 	vgfb = to_virtio_gpu_framebuffer(new_state->fb);
+	vgplane_st = to_virtio_gpu_plane_state(new_state);
 	bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
 	if (!bo || (plane->type == DRM_PLANE_TYPE_PRIMARY && !bo->guest_blob))
 		return 0;
 
-	if (bo->dumb && (plane->state->fb != new_state->fb)) {
-		vgfb->fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context,
+	if (bo->dumb) {
+		vgplane_st->fence = virtio_gpu_fence_alloc(vgdev,
+						     vgdev->fence_drv.context,
 						     0);
-		if (!vgfb->fence)
+		if (!vgplane_st->fence)
 			return -ENOMEM;
 	}
 
@@ -306,15 +326,15 @@ static int virtio_gpu_plane_prepare_fb(struct drm_plane *plane,
 static void virtio_gpu_plane_cleanup_fb(struct drm_plane *plane,
 					struct drm_plane_state *state)
 {
-	struct virtio_gpu_framebuffer *vgfb;
+	struct virtio_gpu_plane_state *vgplane_st;
 
 	if (!state->fb)
 		return;
 
-	vgfb = to_virtio_gpu_framebuffer(state->fb);
-	if (vgfb->fence) {
-		dma_fence_put(&vgfb->fence->f);
-		vgfb->fence = NULL;
+	vgplane_st = to_virtio_gpu_plane_state(state);
+	if (vgplane_st->fence) {
+		dma_fence_put(&vgplane_st->fence->f);
+		vgplane_st->fence = NULL;
 	}
 }
 
@@ -327,6 +347,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_output *output = NULL;
 	struct virtio_gpu_framebuffer *vgfb;
+	struct virtio_gpu_plane_state *vgplane_st;
 	struct virtio_gpu_object *bo = NULL;
 	uint32_t handle;
 
@@ -339,6 +360,7 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 
 	if (plane->state->fb) {
 		vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
+		vgplane_st = to_virtio_gpu_plane_state(plane->state);
 		bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]);
 		handle = bo->hw_res_handle;
 	} else {
@@ -358,11 +380,9 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
 			(vgdev, 0,
 			 plane->state->crtc_w,
 			 plane->state->crtc_h,
-			 0, 0, objs, vgfb->fence);
+			 0, 0, objs, vgplane_st->fence);
 		virtio_gpu_notify(vgdev);
-		dma_fence_wait(&vgfb->fence->f, true);
-		dma_fence_put(&vgfb->fence->f);
-		vgfb->fence = NULL;
+		dma_fence_wait(&vgplane_st->fence->f, true);
 	}
 
 	if (plane->state->fb != old_state->fb) {
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 3551a6d3795e..ce54b8354a7d 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -4914,6 +4914,10 @@ static const struct wacom_features wacom_features_0x94 =
 	HID_DEVICE(BUS_I2C, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
 	.driver_data = (kernel_ulong_t)&wacom_features_##prod
 
+#define PCI_DEVICE_WACOM(prod)						\
+	HID_DEVICE(BUS_PCI, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
+	.driver_data = (kernel_ulong_t)&wacom_features_##prod
+
 #define USB_DEVICE_LENOVO(prod)					\
 	HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, prod),			\
 	.driver_data = (kernel_ulong_t)&wacom_features_##prod
@@ -5083,6 +5087,7 @@ const struct hid_device_id wacom_ids[] = {
 
 	{ USB_DEVICE_WACOM(HID_ANY_ID) },
 	{ I2C_DEVICE_WACOM(HID_ANY_ID) },
+	{ PCI_DEVICE_WACOM(HID_ANY_ID) },
 	{ BT_DEVICE_WACOM(HID_ANY_ID) },
 	{ }
 };
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 4dd777cc0c89..a08df5004924 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -355,6 +355,25 @@ static const struct acpi_device_id i2c_acpi_force_400khz_device_ids[] = {
 	{}
 };
 
+static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = {
+	/*
+	 * When a 400KHz freq is used on this model of ELAN touchpad in Linux,
+	 * excessive smoothing (similar to when the touchpad's firmware detects
+	 * a noisy signal) is sometimes applied. As some devices' (e.g, Lenovo
+	 * V15 G4) ACPI tables specify a 400KHz frequency for this device and
+	 * some I2C busses (e.g, Designware I2C) default to a 400KHz freq,
+	 * force the speed to 100KHz as a workaround.
+	 *
+	 * For future investigation: This problem may be related to the default
+	 * HCNT/LCNT values given by some busses' drivers, because they are not
+	 * specified in the aforementioned devices' ACPI tables, and because
+	 * the device works without issues on Windows at what is expected to be
+	 * a 400KHz frequency. The root cause of the issue is not known.
+	 */
+	{ "ELAN06FA", 0 },
+	{}
+};
+
 static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
 					   void *data, void **return_value)
 {
@@ -373,6 +392,9 @@ static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
 	if (acpi_match_device_ids(adev, i2c_acpi_force_400khz_device_ids) == 0)
 		lookup->force_speed = I2C_MAX_FAST_MODE_FREQ;
 
+	if (acpi_match_device_ids(adev, i2c_acpi_force_100khz_device_ids) == 0)
+		lookup->force_speed = I2C_MAX_STANDARD_MODE_FREQ;
+
 	return AE_OK;
 }
 
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index cd33eb9860dc..1d7c9fc0da2d 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -3893,7 +3893,7 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 	/* Initialise in-memory data structures */
 	ret = arm_smmu_init_structures(smmu);
 	if (ret)
-		return ret;
+		goto err_free_iopf;
 
 	/* Record our private device structure */
 	platform_set_drvdata(pdev, smmu);
@@ -3904,22 +3904,29 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 	/* Reset the device */
 	ret = arm_smmu_device_reset(smmu, bypass);
 	if (ret)
-		return ret;
+		goto err_disable;
 
 	/* And we're up. Go go go! */
 	ret = iommu_device_sysfs_add(&smmu->iommu, dev, NULL,
 				     "smmu3.%pa", &ioaddr);
 	if (ret)
-		return ret;
+		goto err_disable;
 
 	ret = iommu_device_register(&smmu->iommu, &arm_smmu_ops, dev);
 	if (ret) {
 		dev_err(dev, "Failed to register iommu\n");
-		iommu_device_sysfs_remove(&smmu->iommu);
-		return ret;
+		goto err_free_sysfs;
 	}
 
 	return 0;
+
+err_free_sysfs:
+	iommu_device_sysfs_remove(&smmu->iommu);
+err_disable:
+	arm_smmu_device_disable(smmu);
+err_free_iopf:
+	iopf_queue_free(smmu->evtq.iopf);
+	return ret;
 }
 
 static int arm_smmu_device_remove(struct platform_device *pdev)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index 26e010f85184..f2ecd3322d1e 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -2097,11 +2097,12 @@ static void mxc_jpeg_detach_pm_domains(struct mxc_jpeg_dev *jpeg)
 	int i;
 
 	for (i = 0; i < jpeg->num_domains; i++) {
-		if (jpeg->pd_dev[i] && !pm_runtime_suspended(jpeg->pd_dev[i]))
+		if (!IS_ERR_OR_NULL(jpeg->pd_dev[i]) &&
+		    !pm_runtime_suspended(jpeg->pd_dev[i]))
 			pm_runtime_force_suspend(jpeg->pd_dev[i]);
-		if (jpeg->pd_link[i] && !IS_ERR(jpeg->pd_link[i]))
+		if (!IS_ERR_OR_NULL(jpeg->pd_link[i]))
 			device_link_del(jpeg->pd_link[i]);
-		if (jpeg->pd_dev[i] && !IS_ERR(jpeg->pd_dev[i]))
+		if (!IS_ERR_OR_NULL(jpeg->pd_dev[i]))
 			dev_pm_domain_detach(jpeg->pd_dev[i], true);
 		jpeg->pd_dev[i] = NULL;
 		jpeg->pd_link[i] = NULL;
diff --git a/drivers/media/usb/uvc/uvc_status.c b/drivers/media/usb/uvc/uvc_status.c
index 4a92c989cf33..d594acf9d8ce 100644
--- a/drivers/media/usb/uvc/uvc_status.c
+++ b/drivers/media/usb/uvc/uvc_status.c
@@ -267,6 +267,7 @@ int uvc_status_init(struct uvc_device *dev)
 	dev->int_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (dev->int_urb == NULL) {
 		kfree(dev->status);
+		dev->status = NULL;
 		return -ENOMEM;
 	}
 
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 7b1c597b6879..03367fcac42a 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -756,8 +756,9 @@ static const struct pci_device_id lpc_ich_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0x2917), LPC_ICH9ME},
 	{ PCI_VDEVICE(INTEL, 0x2918), LPC_ICH9},
 	{ PCI_VDEVICE(INTEL, 0x2919), LPC_ICH9M},
-	{ PCI_VDEVICE(INTEL, 0x3197), LPC_GLK},
 	{ PCI_VDEVICE(INTEL, 0x2b9c), LPC_COUGARMOUNTAIN},
+	{ PCI_VDEVICE(INTEL, 0x3197), LPC_GLK},
+	{ PCI_VDEVICE(INTEL, 0x31e8), LPC_GLK},
 	{ PCI_VDEVICE(INTEL, 0x3a14), LPC_ICH10DO},
 	{ PCI_VDEVICE(INTEL, 0x3a16), LPC_ICH10R},
 	{ PCI_VDEVICE(INTEL, 0x3a18), LPC_ICH10},
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 5914516df2f7..cb87e8273779 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -458,6 +458,8 @@ static unsigned mmc_sdio_get_max_clock(struct mmc_card *card)
 	if (mmc_card_sd_combo(card))
 		max_dtr = min(max_dtr, mmc_sd_get_max_clock(card));
 
+	max_dtr = min_not_zero(max_dtr, card->quirk_max_rate);
+
 	return max_dtr;
 }
 
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 28bd562c439e..c8488b8e2073 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -132,9 +132,18 @@
 /* Timeout value to avoid infinite waiting for pwr_irq */
 #define MSM_PWR_IRQ_TIMEOUT_MS 5000
 
+/* Max load for eMMC Vdd supply */
+#define MMC_VMMC_MAX_LOAD_UA	570000
+
 /* Max load for eMMC Vdd-io supply */
 #define MMC_VQMMC_MAX_LOAD_UA	325000
 
+/* Max load for SD Vdd supply */
+#define SD_VMMC_MAX_LOAD_UA	800000
+
+/* Max load for SD Vdd-io supply */
+#define SD_VQMMC_MAX_LOAD_UA	22000
+
 #define msm_host_readl(msm_host, host, offset) \
 	msm_host->var_ops->msm_readl_relaxed(host, offset)
 
@@ -1399,11 +1408,48 @@ static int sdhci_msm_set_pincfg(struct sdhci_msm_host *msm_host, bool level)
 	return ret;
 }
 
-static int sdhci_msm_set_vmmc(struct mmc_host *mmc)
+static void msm_config_vmmc_regulator(struct mmc_host *mmc, bool hpm)
+{
+	int load;
+
+	if (!hpm)
+		load = 0;
+	else if (!mmc->card)
+		load = max(MMC_VMMC_MAX_LOAD_UA, SD_VMMC_MAX_LOAD_UA);
+	else if (mmc_card_mmc(mmc->card))
+		load = MMC_VMMC_MAX_LOAD_UA;
+	else if (mmc_card_sd(mmc->card))
+		load = SD_VMMC_MAX_LOAD_UA;
+	else
+		return;
+
+	regulator_set_load(mmc->supply.vmmc, load);
+}
+
+static void msm_config_vqmmc_regulator(struct mmc_host *mmc, bool hpm)
+{
+	int load;
+
+	if (!hpm)
+		load = 0;
+	else if (!mmc->card)
+		load = max(MMC_VQMMC_MAX_LOAD_UA, SD_VQMMC_MAX_LOAD_UA);
+	else if (mmc_card_sd(mmc->card))
+		load = SD_VQMMC_MAX_LOAD_UA;
+	else
+		return;
+
+	regulator_set_load(mmc->supply.vqmmc, load);
+}
+
+static int sdhci_msm_set_vmmc(struct sdhci_msm_host *msm_host,
+			      struct mmc_host *mmc, bool hpm)
 {
 	if (IS_ERR(mmc->supply.vmmc))
 		return 0;
 
+	msm_config_vmmc_regulator(mmc, hpm);
+
 	return mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, mmc->ios.vdd);
 }
 
@@ -1416,6 +1462,8 @@ static int msm_toggle_vqmmc(struct sdhci_msm_host *msm_host,
 	if (msm_host->vqmmc_enabled == level)
 		return 0;
 
+	msm_config_vqmmc_regulator(mmc, level);
+
 	if (level) {
 		/* Set the IO voltage regulator to default voltage level */
 		if (msm_host->caps_0 & CORE_3_0V_SUPPORT)
@@ -1638,7 +1686,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
 	}
 
 	if (pwr_state) {
-		ret = sdhci_msm_set_vmmc(mmc);
+		ret = sdhci_msm_set_vmmc(msm_host, mmc,
+					 pwr_state & REQ_BUS_ON);
 		if (!ret)
 			ret = sdhci_msm_set_vqmmc(msm_host, mmc,
 					pwr_state & REQ_BUS_ON);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index 2ac255bb918b..133e8220aaea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -186,17 +186,16 @@ static void mlx5_pps_out(struct work_struct *work)
 	}
 }
 
-static void mlx5_timestamp_overflow(struct work_struct *work)
+static long mlx5_timestamp_overflow(struct ptp_clock_info *ptp_info)
 {
-	struct delayed_work *dwork = to_delayed_work(work);
 	struct mlx5_core_dev *mdev;
 	struct mlx5_timer *timer;
 	struct mlx5_clock *clock;
 	unsigned long flags;
 
-	timer = container_of(dwork, struct mlx5_timer, overflow_work);
-	clock = container_of(timer, struct mlx5_clock, timer);
+	clock = container_of(ptp_info, struct mlx5_clock, ptp_info);
 	mdev = container_of(clock, struct mlx5_core_dev, clock);
+	timer = &clock->timer;
 
 	if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR)
 		goto out;
@@ -207,7 +206,7 @@ static void mlx5_timestamp_overflow(struct work_struct *work)
 	write_sequnlock_irqrestore(&clock->lock, flags);
 
 out:
-	schedule_delayed_work(&timer->overflow_work, timer->overflow_period);
+	return timer->overflow_period;
 }
 
 static int mlx5_ptp_settime_real_time(struct mlx5_core_dev *mdev,
@@ -375,6 +374,7 @@ static int mlx5_ptp_adjfreq(struct ptp_clock_info *ptp, s32 delta)
 				       timer->nominal_c_mult + diff;
 	mlx5_update_clock_info_page(mdev);
 	write_sequnlock_irqrestore(&clock->lock, flags);
+	ptp_schedule_worker(clock->ptp, timer->overflow_period);
 
 	return 0;
 }
@@ -708,6 +708,7 @@ static const struct ptp_clock_info mlx5_ptp_clock_info = {
 	.settime64	= mlx5_ptp_settime,
 	.enable		= NULL,
 	.verify		= NULL,
+	.do_aux_work	= mlx5_timestamp_overflow,
 };
 
 static int mlx5_query_mtpps_pin_mode(struct mlx5_core_dev *mdev, u8 pin,
@@ -908,12 +909,11 @@ static void mlx5_init_overflow_period(struct mlx5_clock *clock)
 	do_div(ns, NSEC_PER_SEC / HZ);
 	timer->overflow_period = ns;
 
-	INIT_DELAYED_WORK(&timer->overflow_work, mlx5_timestamp_overflow);
-	if (timer->overflow_period)
-		schedule_delayed_work(&timer->overflow_work, 0);
-	else
+	if (!timer->overflow_period) {
+		timer->overflow_period = HZ;
 		mlx5_core_warn(mdev,
-			       "invalid overflow period, overflow_work is not scheduled\n");
+			       "invalid overflow period, overflow_work is scheduled once per second\n");
+	}
 
 	if (clock_info)
 		clock_info->overflow_period = timer->overflow_period;
@@ -999,6 +999,9 @@ void mlx5_init_clock(struct mlx5_core_dev *mdev)
 
 	MLX5_NB_INIT(&clock->pps_nb, mlx5_pps_event, PPS_EVENT);
 	mlx5_eq_notifier_register(mdev, &clock->pps_nb);
+
+	if (clock->ptp)
+		ptp_schedule_worker(clock->ptp, 0);
 }
 
 void mlx5_cleanup_clock(struct mlx5_core_dev *mdev)
@@ -1015,7 +1018,6 @@ void mlx5_cleanup_clock(struct mlx5_core_dev *mdev)
 	}
 
 	cancel_work_sync(&clock->pps_info.out_work);
-	cancel_delayed_work_sync(&clock->timer.overflow_work);
 
 	if (mdev->clock_info) {
 		free_page((unsigned long)mdev->clock_info);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index ea98d93138c1..a6c9f9062dbd 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -574,14 +574,18 @@ static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb,
 	return ret;
 }
 
-static inline bool tun_not_capable(struct tun_struct *tun)
+static inline bool tun_capable(struct tun_struct *tun)
 {
 	const struct cred *cred = current_cred();
 	struct net *net = dev_net(tun->dev);
 
-	return ((uid_valid(tun->owner) && !uid_eq(cred->euid, tun->owner)) ||
-		  (gid_valid(tun->group) && !in_egroup_p(tun->group))) &&
-		!ns_capable(net->user_ns, CAP_NET_ADMIN);
+	if (ns_capable(net->user_ns, CAP_NET_ADMIN))
+		return 1;
+	if (uid_valid(tun->owner) && uid_eq(cred->euid, tun->owner))
+		return 1;
+	if (gid_valid(tun->group) && in_egroup_p(tun->group))
+		return 1;
+	return 0;
 }
 
 static void tun_set_real_num_queues(struct tun_struct *tun)
@@ -2767,7 +2771,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 		    !!(tun->flags & IFF_MULTI_QUEUE))
 			return -EINVAL;
 
-		if (tun_not_capable(tun))
+		if (!tun_capable(tun))
 			return -EPERM;
 		err = security_tun_dev_open(tun->security);
 		if (err < 0)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index 0eb852896322..f117c90c53f5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -89,13 +89,13 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 	/* Set board-type to the first string of the machine compatible prop */
 	root = of_find_node_by_path("/");
 	if (root && err) {
-		char *board_type;
+		char *board_type = NULL;
 		const char *tmp;
 
-		of_property_read_string_index(root, "compatible", 0, &tmp);
-
 		/* get rid of '/' in the compatible string to be able to find the FW */
-		board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
+		if (!of_property_read_string_index(root, "compatible", 0, &tmp))
+			board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
+
 		if (!board_type) {
 			of_node_put(root);
 			return;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
index 8580a2754789..42e7bc67e914 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
@@ -23427,6 +23427,9 @@ wlc_phy_iqcal_gainparams_nphy(struct brcms_phy *pi, u16 core_no,
 				break;
 		}
 
+		if (WARN_ON(k == NPHY_IQCAL_NUMGAINS))
+			return;
+
 		params->txgm = tbl_iqcal_gainparams_nphy[band_idx][k][1];
 		params->pga = tbl_iqcal_gainparams_nphy[band_idx][k][2];
 		params->pad = tbl_iqcal_gainparams_nphy[band_idx][k][3];
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index c96dfd7fd3dc..84980f6a0d60 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -123,7 +123,7 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
 				    size_t expected_size)
 {
 	union acpi_object *obj;
-	int ret = 0;
+	int ret;
 
 	obj = iwl_acpi_get_dsm_object(dev, rev, func, NULL, guid);
 	if (IS_ERR(obj)) {
@@ -138,8 +138,10 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
 	} else if (obj->type == ACPI_TYPE_BUFFER) {
 		__le64 le_value = 0;
 
-		if (WARN_ON_ONCE(expected_size > sizeof(le_value)))
-			return -EINVAL;
+		if (WARN_ON_ONCE(expected_size > sizeof(le_value))) {
+			ret = -EINVAL;
+			goto out;
+		}
 
 		/* if the buffer size doesn't match the expected size */
 		if (obj->buffer.length != expected_size)
@@ -160,8 +162,9 @@ static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
 	}
 
 	IWL_DEBUG_DEV_RADIO(dev,
-			    "ACPI: DSM method evaluated: func=%d, ret=%d\n",
-			    func, ret);
+			    "ACPI: DSM method evaluated: func=%d, value=%lld\n",
+			    func, *value);
+	ret = 0;
 out:
 	ACPI_FREE(obj);
 	return ret;
diff --git a/drivers/net/wwan/iosm/iosm_ipc_pcie.c b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
index 04517bd3325a..a066977af0be 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_pcie.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_pcie.c
@@ -6,6 +6,7 @@
 #include <linux/acpi.h>
 #include <linux/bitfield.h>
 #include <linux/module.h>
+#include <linux/suspend.h>
 #include <net/rtnetlink.h>
 
 #include "iosm_ipc_imem.h"
@@ -18,6 +19,7 @@ MODULE_LICENSE("GPL v2");
 /* WWAN GUID */
 static guid_t wwan_acpi_guid = GUID_INIT(0xbad01b75, 0x22a8, 0x4f48, 0x87, 0x92,
 				       0xbd, 0xde, 0x94, 0x67, 0x74, 0x7d);
+static bool pci_registered;
 
 static void ipc_pcie_resources_release(struct iosm_pcie *ipc_pcie)
 {
@@ -448,7 +450,6 @@ static struct pci_driver iosm_ipc_driver = {
 	},
 	.id_table = iosm_ipc_ids,
 };
-module_pci_driver(iosm_ipc_driver);
 
 int ipc_pcie_addr_map(struct iosm_pcie *ipc_pcie, unsigned char *data,
 		      size_t size, dma_addr_t *mapping, int direction)
@@ -530,3 +531,56 @@ void ipc_pcie_kfree_skb(struct iosm_pcie *ipc_pcie, struct sk_buff *skb)
 	IPC_CB(skb)->mapping = 0;
 	dev_kfree_skb(skb);
 }
+
+static int pm_notify(struct notifier_block *nb, unsigned long mode, void *_unused)
+{
+	if (mode == PM_HIBERNATION_PREPARE || mode == PM_RESTORE_PREPARE) {
+		if (pci_registered) {
+			pci_unregister_driver(&iosm_ipc_driver);
+			pci_registered = false;
+		}
+	} else if (mode == PM_POST_HIBERNATION || mode == PM_POST_RESTORE) {
+		if (!pci_registered) {
+			int ret;
+
+			ret = pci_register_driver(&iosm_ipc_driver);
+			if (ret) {
+				pr_err(KBUILD_MODNAME ": unable to re-register PCI driver: %d\n",
+				       ret);
+			} else {
+				pci_registered = true;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static struct notifier_block pm_notifier = {
+	.notifier_call = pm_notify,
+};
+
+static int __init iosm_ipc_driver_init(void)
+{
+	int ret;
+
+	ret = pci_register_driver(&iosm_ipc_driver);
+	if (ret)
+		return ret;
+
+	pci_registered = true;
+
+	register_pm_notifier(&pm_notifier);
+
+	return 0;
+}
+module_init(iosm_ipc_driver_init);
+
+static void __exit iosm_ipc_driver_exit(void)
+{
+	unregister_pm_notifier(&pm_notifier);
+
+	if (pci_registered)
+		pci_unregister_driver(&iosm_ipc_driver);
+}
+module_exit(iosm_ipc_driver_exit);
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index a4f628675dbb..4a3f5f5b966d 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1282,9 +1282,11 @@ static struct stm32_desc_pin *stm32_pctrl_get_desc_pin_from_gpio(struct stm32_pi
 	int i;
 
 	/* With few exceptions (e.g. bank 'Z'), pin number matches with pin index in array */
-	pin_desc = pctl->pins + stm32_pin_nb;
-	if (pin_desc->pin.number == stm32_pin_nb)
-		return pin_desc;
+	if (stm32_pin_nb < pctl->npins) {
+		pin_desc = pctl->pins + stm32_pin_nb;
+		if (pin_desc->pin.number == stm32_pin_nb)
+			return pin_desc;
+	}
 
 	/* Otherwise, loop all array to find the pin with the right number */
 	for (i = 0; i < pctl->npins; i++) {
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
index 8eb902fe73a9..6b3600356797 100644
--- a/drivers/ptp/ptp_chardev.c
+++ b/drivers/ptp/ptp_chardev.c
@@ -4,6 +4,7 @@
  *
  * Copyright (C) 2010 OMICRON electronics GmbH
  */
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/posix-clock.h>
 #include <linux/poll.h>
@@ -124,6 +125,9 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg)
 	struct timespec64 ts;
 	int enable, err = 0;
 
+	if (in_compat_syscall() && cmd != PTP_ENABLE_PPS && cmd != PTP_ENABLE_PPS2)
+		arg = (unsigned long)compat_ptr(arg);
+
 	switch (cmd) {
 
 	case PTP_CLOCK_GETCAPS:
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 0444e15ee8df..cc005f2c9571 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2466,6 +2466,13 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
 	rproc->dev.driver_data = rproc;
 	idr_init(&rproc->notifyids);
 
+	/* Assign a unique device index and name */
+	rproc->index = ida_alloc(&rproc_dev_index, GFP_KERNEL);
+	if (rproc->index < 0) {
+		dev_err(dev, "ida_alloc failed: %d\n", rproc->index);
+		goto put_device;
+	}
+
 	rproc->name = kstrdup_const(name, GFP_KERNEL);
 	if (!rproc->name)
 		goto put_device;
@@ -2476,13 +2483,6 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
 	if (rproc_alloc_ops(rproc, ops))
 		goto put_device;
 
-	/* Assign a unique device index and name */
-	rproc->index = ida_alloc(&rproc_dev_index, GFP_KERNEL);
-	if (rproc->index < 0) {
-		dev_err(dev, "ida_alloc failed: %d\n", rproc->index);
-		goto put_device;
-	}
-
 	dev_set_name(&rproc->dev, "remoteproc%d", rproc->index);
 
 	atomic_set(&rproc->power, 0);
diff --git a/drivers/staging/media/max96712/max96712.c b/drivers/staging/media/max96712/max96712.c
index 99b333b68198..f5805dc70ece 100644
--- a/drivers/staging/media/max96712/max96712.c
+++ b/drivers/staging/media/max96712/max96712.c
@@ -376,7 +376,6 @@ static int max96712_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	priv->client = client;
-	i2c_set_clientdata(client, priv);
 
 	priv->regmap = devm_regmap_init_i2c(client, &max96712_i2c_regmap);
 	if (IS_ERR(priv->regmap))
@@ -409,7 +408,8 @@ static int max96712_probe(struct i2c_client *client)
 
 static void max96712_remove(struct i2c_client *client)
 {
-	struct max96712_priv *priv = i2c_get_clientdata(client);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct max96712_priv *priv = container_of(sd, struct max96712_priv, sd);
 
 	v4l2_async_unregister_subdev(&priv->sd);
 
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index 81b6d0d18a8c..948888316fbd 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -1066,7 +1066,6 @@ static void usbg_cmd_work(struct work_struct *work)
 out:
 	transport_send_check_condition_and_sense(se_cmd,
 			TCM_UNSUPPORTED_SCSI_OPCODE, 1);
-	transport_generic_free_cmd(&cmd->se_cmd, 0);
 }
 
 static struct usbg_cmd *usbg_get_cmd(struct f_uas *fu,
@@ -1195,7 +1194,6 @@ static void bot_cmd_work(struct work_struct *work)
 out:
 	transport_send_check_condition_and_sense(se_cmd,
 				TCM_UNSUPPORTED_SCSI_OPCODE, 1);
-	transport_generic_free_cmd(&cmd->se_cmd, 0);
 }
 
 static int bot_submit_command(struct f_uas *fu,
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index c8231677c79e..bdb0f7c70752 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -234,7 +234,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans,
 	if (args->drop_cache)
 		btrfs_drop_extent_map_range(inode, args->start, args->end - 1, false);
 
-	if (args->start >= inode->disk_i_size && !args->replace_extent)
+	if (data_race(args->start >= inode->disk_i_size) && !args->replace_extent)
 		modify_tree = 0;
 
 	update_refs = (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 4c6ba97299cd..d6cda0b2e925 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4423,8 +4423,18 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
 		WARN_ON(!first_cow && level == 0);
 
 		node = rc->backref_cache.path[level];
-		BUG_ON(node->bytenr != buf->start &&
-		       node->new_bytenr != buf->start);
+
+		/*
+		 * If node->bytenr != buf->start and node->new_bytenr !=
+		 * buf->start then we've got the wrong backref node for what we
+		 * expected to see here and the cache is incorrect.
+		 */
+		if (unlikely(node->bytenr != buf->start && node->new_bytenr != buf->start)) {
+			btrfs_err(fs_info,
+"bytenr %llu was found but our backref cache was expecting %llu or %llu",
+				  buf->start, node->bytenr, node->new_bytenr);
+			return -EUCLEAN;
+		}
 
 		btrfs_backref_drop_node_buffer(node);
 		atomic_inc(&cow->refs);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index e46845aec25f..b0842a653405 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1469,7 +1469,7 @@ static int btrfs_fill_super(struct super_block *sb,
 
 	err = open_ctree(sb, fs_devices, (char *)data);
 	if (err) {
-		btrfs_err(fs_info, "open_ctree failed");
+		btrfs_err(fs_info, "open_ctree failed: %d", err);
 		return err;
 	}
 
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 604241e6e2c1..ff3e0d4cf4b4 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -262,8 +262,10 @@ loop:
 	cur_trans = fs_info->running_transaction;
 	if (cur_trans) {
 		if (TRANS_ABORTED(cur_trans)) {
+			const int abort_error = cur_trans->aborted;
+
 			spin_unlock(&fs_info->trans_lock);
-			return cur_trans->aborted;
+			return abort_error;
 		}
 		if (btrfs_blocked_trans_types[cur_trans->state] & type) {
 			spin_unlock(&fs_info->trans_lock);
diff --git a/fs/exec.c b/fs/exec.c
index 0149f828d409..eb088e3cc9a0 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1364,7 +1364,28 @@ int begin_new_exec(struct linux_binprm * bprm)
 		set_dumpable(current->mm, SUID_DUMP_USER);
 
 	perf_event_exec();
-	__set_task_comm(me, kbasename(bprm->filename), true);
+
+	/*
+	 * If the original filename was empty, alloc_bprm() made up a path
+	 * that will probably not be useful to admins running ps or similar.
+	 * Let's fix it up to be something reasonable.
+	 */
+	if (bprm->comm_from_dentry) {
+		/*
+		 * Hold RCU lock to keep the name from being freed behind our back.
+		 * Use acquire semantics to make sure the terminating NUL from
+		 * __d_alloc() is seen.
+		 *
+		 * Note, we're deliberately sloppy here. We don't need to care about
+		 * detecting a concurrent rename and just want a terminated name.
+		 */
+		rcu_read_lock();
+		__set_task_comm(me, smp_load_acquire(&bprm->file->f_path.dentry->d_name.name),
+				true);
+		rcu_read_unlock();
+	} else {
+		__set_task_comm(me, kbasename(bprm->filename), true);
+	}
 
 	/* An exec changes our domain. We are no longer part of the thread
 	   group */
@@ -1523,11 +1544,13 @@ static struct linux_binprm *alloc_bprm(int fd, struct filename *filename)
 	if (fd == AT_FDCWD || filename->name[0] == '/') {
 		bprm->filename = filename->name;
 	} else {
-		if (filename->name[0] == '\0')
+		if (filename->name[0] == '\0') {
 			bprm->fdpath = kasprintf(GFP_KERNEL, "/dev/fd/%d", fd);
-		else
+			bprm->comm_from_dentry = 1;
+		} else {
 			bprm->fdpath = kasprintf(GFP_KERNEL, "/dev/fd/%d/%s",
 						  fd, filename->name);
+		}
 		if (!bprm->fdpath)
 			goto out_free;
 
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 8d51f69f9f5e..af9056d78fad 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -42,7 +42,9 @@ struct linux_binprm {
 		 * Set when errors can no longer be returned to the
 		 * original userspace.
 		 */
-		point_of_no_return:1;
+		point_of_no_return:1,
+		/* Set when "comm" must come from the dentry. */
+		comm_from_dentry:1;
 	struct file *executable; /* Executable to pass to the interpreter */
 	struct file *interpreter;
 	struct file *file;
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 2588ddd3512b..3c3e0f26c244 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -716,7 +716,6 @@ struct mlx5_timer {
 	struct timecounter         tc;
 	u32                        nominal_c_mult;
 	unsigned long              overflow_period;
-	struct delayed_work        overflow_work;
 };
 
 struct mlx5_clock {
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 0a99fd63232d..9c439d6bcbe7 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -405,7 +405,7 @@ static struct latched_seq clear_seq = {
 /* record buffer */
 #define LOG_ALIGN __alignof__(unsigned long)
 #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT)
-#define LOG_BUF_LEN_MAX (u32)(1 << 31)
+#define LOG_BUF_LEN_MAX ((u32)1 << 31)
 static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN);
 static char *log_buf = __log_buf;
 static u32 log_buf_len = __LOG_BUF_LEN;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 45f4965fcb68..cdde2922e564 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -724,13 +724,15 @@ static void update_rq_clock_task(struct rq *rq, s64 delta)
 #endif
 #ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
 	if (static_key_false((&paravirt_steal_rq_enabled))) {
-		steal = paravirt_steal_clock(cpu_of(rq));
+		u64 prev_steal;
+
+		steal = prev_steal = paravirt_steal_clock(cpu_of(rq));
 		steal -= rq->prev_steal_time_rq;
 
 		if (unlikely(steal > delta))
 			steal = delta;
 
-		rq->prev_steal_time_rq += steal;
+		rq->prev_steal_time_rq = prev_steal;
 		delta -= steal;
 	}
 #endif
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b2dff1935893..e5fbae585e52 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1409,7 +1409,7 @@ config LOCKDEP_SMALL
 config LOCKDEP_BITS
 	int "Bitsize for MAX_LOCKDEP_ENTRIES"
 	depends on LOCKDEP && !LOCKDEP_SMALL
-	range 10 30
+	range 10 24
 	default 15
 	help
 	  Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message.
@@ -1425,7 +1425,7 @@ config LOCKDEP_CHAINS_BITS
 config LOCKDEP_STACK_TRACE_BITS
 	int "Bitsize for MAX_STACK_TRACE_ENTRIES"
 	depends on LOCKDEP && !LOCKDEP_SMALL
-	range 10 30
+	range 10 26
 	default 19
 	help
 	  Try increasing this value if you hit "BUG: MAX_STACK_TRACE_ENTRIES too low!" message.
@@ -1433,7 +1433,7 @@ config LOCKDEP_STACK_TRACE_BITS
 config LOCKDEP_STACK_TRACE_HASH_BITS
 	int "Bitsize for STACK_TRACE_HASH_SIZE"
 	depends on LOCKDEP && !LOCKDEP_SMALL
-	range 10 30
+	range 10 26
 	default 14
 	help
 	  Try increasing this value if you need large MAX_STACK_TRACE_ENTRIES.
@@ -1441,7 +1441,7 @@ config LOCKDEP_STACK_TRACE_HASH_BITS
 config LOCKDEP_CIRCULAR_QUEUE_BITS
 	int "Bitsize for elements in circular_queue struct"
 	depends on LOCKDEP
-	range 10 30
+	range 10 26
 	default 12
 	help
 	  Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ce27daf08996..ee51132be45a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -5524,10 +5524,16 @@ static void mgmt_remove_adv_monitor_complete(struct hci_dev *hdev,
 {
 	struct mgmt_rp_remove_adv_monitor rp;
 	struct mgmt_pending_cmd *cmd = data;
-	struct mgmt_cp_remove_adv_monitor *cp = cmd->param;
+	struct mgmt_cp_remove_adv_monitor *cp;
+
+	if (status == -ECANCELED ||
+	    cmd != pending_find(MGMT_OP_REMOVE_ADV_MONITOR, hdev))
+		return;
 
 	hci_dev_lock(hdev);
 
+	cp = cmd->param;
+
 	rp.monitor_handle = cp->monitor_handle;
 
 	if (!status)
@@ -5545,6 +5551,10 @@ static void mgmt_remove_adv_monitor_complete(struct hci_dev *hdev,
 static int mgmt_remove_adv_monitor_sync(struct hci_dev *hdev, void *data)
 {
 	struct mgmt_pending_cmd *cmd = data;
+
+	if (cmd != pending_find(MGMT_OP_REMOVE_ADV_MONITOR, hdev))
+		return -ECANCELED;
+
 	struct mgmt_cp_remove_adv_monitor *cp = cmd->param;
 	u16 handle = __le16_to_cpu(cp->monitor_handle);
 
diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index 65f59739a041..25c18f8783ce 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -2293,8 +2293,8 @@ static bool tipc_crypto_key_rcv(struct tipc_crypto *rx, struct tipc_msg *hdr)
 	keylen = ntohl(*((__be32 *)(data + TIPC_AEAD_ALG_NAME)));
 
 	/* Verify the supplied size values */
-	if (unlikely(size != keylen + sizeof(struct tipc_aead_key) ||
-		     keylen > TIPC_AEAD_KEY_SIZE_MAX)) {
+	if (unlikely(keylen > TIPC_AEAD_KEY_SIZE_MAX ||
+		     size != keylen + sizeof(struct tipc_aead_key))) {
 		pr_debug("%s: invalid MSG_CRYPTO key size\n", rx->name);
 		goto exit;
 	}
diff --git a/security/safesetid/securityfs.c b/security/safesetid/securityfs.c
index 25310468bcdd..8e1ffd70b18a 100644
--- a/security/safesetid/securityfs.c
+++ b/security/safesetid/securityfs.c
@@ -143,6 +143,9 @@ static ssize_t handle_policy_update(struct file *file,
 	char *buf, *p, *end;
 	int err;
 
+	if (len >= KMALLOC_MAX_SIZE)
+		return -EINVAL;
+
 	pol = kmalloc(sizeof(struct setid_ruleset), GFP_KERNEL);
 	if (!pol)
 		return -ENOMEM;
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index a7af085550b2..5f1cdd0af115 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -2664,7 +2664,7 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
 
 		if (head->w.avail >= head->writebuf_size - 1) {
 			const int len = head->writebuf_size * 2;
-			char *cp = kzalloc(len, GFP_NOFS);
+			char *cp = kzalloc(len, GFP_NOFS | __GFP_NOWARN);
 
 			if (!cp) {
 				error = -ENOMEM;
diff --git a/tools/testing/selftests/net/ipsec.c b/tools/testing/selftests/net/ipsec.c
index be4a30a0d02a..9b44a091802c 100644
--- a/tools/testing/selftests/net/ipsec.c
+++ b/tools/testing/selftests/net/ipsec.c
@@ -227,7 +227,8 @@ static int rtattr_pack(struct nlmsghdr *nh, size_t req_sz,
 
 	attr->rta_len = RTA_LENGTH(size);
 	attr->rta_type = rta_type;
-	memcpy(RTA_DATA(attr), payload, size);
+	if (payload)
+		memcpy(RTA_DATA(attr), payload, size);
 
 	return 0;
 }