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-rw-r--r--0000_README4
-rw-r--r--1053_linux-4.14.54.patch2835
2 files changed, 2839 insertions, 0 deletions
diff --git a/0000_README b/0000_README
index de8ec39e..6908240e 100644
--- a/0000_README
+++ b/0000_README
@@ -255,6 +255,10 @@ Patch: 1052_linux-4.14.53.patch
From: http://www.kernel.org
Desc: Linux 4.14.53
+Patch: 1053_linux-4.14.54.patch
+From: http://www.kernel.org
+Desc: Linux 4.14.54
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1053_linux-4.14.54.patch b/1053_linux-4.14.54.patch
new file mode 100644
index 00000000..ee2b8c4e
--- /dev/null
+++ b/1053_linux-4.14.54.patch
@@ -0,0 +1,2835 @@
+diff --git a/Documentation/devicetree/bindings/net/dsa/b53.txt b/Documentation/devicetree/bindings/net/dsa/b53.txt
+index 8acf51a4dfa8..47a6a7fe0b86 100644
+--- a/Documentation/devicetree/bindings/net/dsa/b53.txt
++++ b/Documentation/devicetree/bindings/net/dsa/b53.txt
+@@ -10,6 +10,7 @@ Required properties:
+ "brcm,bcm53128"
+ "brcm,bcm5365"
+ "brcm,bcm5395"
++ "brcm,bcm5389"
+ "brcm,bcm5397"
+ "brcm,bcm5398"
+
+diff --git a/Makefile b/Makefile
+index fb66998408f4..de0955d8dfa3 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 14
+-SUBLEVEL = 53
++SUBLEVEL = 54
+ EXTRAVERSION =
+ NAME = Petit Gorille
+
+diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
+index 90a741732f60..4747ede61acd 100644
+--- a/arch/arm/boot/dts/imx6q.dtsi
++++ b/arch/arm/boot/dts/imx6q.dtsi
+@@ -96,7 +96,7 @@
+ clocks = <&clks IMX6Q_CLK_ECSPI5>,
+ <&clks IMX6Q_CLK_ECSPI5>;
+ clock-names = "ipg", "per";
+- dmas = <&sdma 11 7 1>, <&sdma 12 7 2>;
++ dmas = <&sdma 11 8 1>, <&sdma 12 8 2>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
+index db78d353bab1..191e86c62037 100644
+--- a/drivers/acpi/osl.c
++++ b/drivers/acpi/osl.c
+@@ -45,6 +45,8 @@
+ #include <linux/uaccess.h>
+ #include <linux/io-64-nonatomic-lo-hi.h>
+
++#include "acpica/accommon.h"
++#include "acpica/acnamesp.h"
+ #include "internal.h"
+
+ #define _COMPONENT ACPI_OS_SERVICES
+@@ -1477,6 +1479,76 @@ int acpi_check_region(resource_size_t start, resource_size_t n,
+ }
+ EXPORT_SYMBOL(acpi_check_region);
+
++static acpi_status acpi_deactivate_mem_region(acpi_handle handle, u32 level,
++ void *_res, void **return_value)
++{
++ struct acpi_mem_space_context **mem_ctx;
++ union acpi_operand_object *handler_obj;
++ union acpi_operand_object *region_obj2;
++ union acpi_operand_object *region_obj;
++ struct resource *res = _res;
++ acpi_status status;
++
++ region_obj = acpi_ns_get_attached_object(handle);
++ if (!region_obj)
++ return AE_OK;
++
++ handler_obj = region_obj->region.handler;
++ if (!handler_obj)
++ return AE_OK;
++
++ if (region_obj->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY)
++ return AE_OK;
++
++ if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE))
++ return AE_OK;
++
++ region_obj2 = acpi_ns_get_secondary_object(region_obj);
++ if (!region_obj2)
++ return AE_OK;
++
++ mem_ctx = (void *)&region_obj2->extra.region_context;
++
++ if (!(mem_ctx[0]->address >= res->start &&
++ mem_ctx[0]->address < res->end))
++ return AE_OK;
++
++ status = handler_obj->address_space.setup(region_obj,
++ ACPI_REGION_DEACTIVATE,
++ NULL, (void **)mem_ctx);
++ if (ACPI_SUCCESS(status))
++ region_obj->region.flags &= ~(AOPOBJ_SETUP_COMPLETE);
++
++ return status;
++}
++
++/**
++ * acpi_release_memory - Release any mappings done to a memory region
++ * @handle: Handle to namespace node
++ * @res: Memory resource
++ * @level: A level that terminates the search
++ *
++ * Walks through @handle and unmaps all SystemMemory Operation Regions that
++ * overlap with @res and that have already been activated (mapped).
++ *
++ * This is a helper that allows drivers to place special requirements on memory
++ * region that may overlap with operation regions, primarily allowing them to
++ * safely map the region as non-cached memory.
++ *
++ * The unmapped Operation Regions will be automatically remapped next time they
++ * are called, so the drivers do not need to do anything else.
++ */
++acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
++ u32 level)
++{
++ if (!(res->flags & IORESOURCE_MEM))
++ return AE_TYPE;
++
++ return acpi_walk_namespace(ACPI_TYPE_REGION, handle, level,
++ acpi_deactivate_mem_region, NULL, res, NULL);
++}
++EXPORT_SYMBOL_GPL(acpi_release_memory);
++
+ /*
+ * Let drivers know whether the resource checks are effective
+ */
+diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
+index 9c9a22958717..a8d2eb0ceb8d 100644
+--- a/drivers/atm/zatm.c
++++ b/drivers/atm/zatm.c
+@@ -1151,8 +1151,8 @@ static void eprom_get_byte(struct zatm_dev *zatm_dev, unsigned char *byte,
+ }
+
+
+-static unsigned char eprom_try_esi(struct atm_dev *dev, unsigned short cmd,
+- int offset, int swap)
++static int eprom_try_esi(struct atm_dev *dev, unsigned short cmd, int offset,
++ int swap)
+ {
+ unsigned char buf[ZEPROM_SIZE];
+ struct zatm_dev *zatm_dev;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+index 4d08957d2108..1360a24d2ede 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+@@ -747,8 +747,7 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
+ }
+ if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
+ adev->vram_pin_size += amdgpu_bo_size(bo);
+- if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
+- adev->invisible_pin_size += amdgpu_bo_size(bo);
++ adev->invisible_pin_size += amdgpu_vram_mgr_bo_invisible_size(bo);
+ } else if (domain == AMDGPU_GEM_DOMAIN_GTT) {
+ adev->gart_pin_size += amdgpu_bo_size(bo);
+ }
+@@ -786,8 +785,7 @@ int amdgpu_bo_unpin(struct amdgpu_bo *bo)
+
+ if (bo->tbo.mem.mem_type == TTM_PL_VRAM) {
+ adev->vram_pin_size -= amdgpu_bo_size(bo);
+- if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
+- adev->invisible_pin_size -= amdgpu_bo_size(bo);
++ adev->invisible_pin_size -= amdgpu_vram_mgr_bo_invisible_size(bo);
+ } else if (bo->tbo.mem.mem_type == TTM_PL_TT) {
+ adev->gart_pin_size -= amdgpu_bo_size(bo);
+ }
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+index 43093bffa2cf..557829a84778 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+@@ -64,6 +64,7 @@ extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
+ bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
+ uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
+
++u64 amdgpu_vram_mgr_bo_invisible_size(struct amdgpu_bo *bo);
+ uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
+ uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man);
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+index 041e0121590c..308a9755eae3 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+@@ -85,6 +85,7 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
+ }
+
+ hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
++ adev->vcn.fw_version = le32_to_cpu(hdr->ucode_version);
+ family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
+ version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
+ version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+index 26e900627971..86d8a961518e 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+@@ -101,6 +101,22 @@ static u64 amdgpu_vram_mgr_vis_size(struct amdgpu_device *adev,
+ adev->mc.visible_vram_size : end) - start;
+ }
+
++/**
++ * amdgpu_vram_mgr_bo_invisible_size - CPU invisible BO size
++ *
++ * @bo: &amdgpu_bo buffer object (must be in VRAM)
++ *
++ * Returns:
++ * How much of the given &amdgpu_bo buffer object lies in CPU invisible VRAM.
++ */
++u64 amdgpu_vram_mgr_bo_invisible_size(struct amdgpu_bo *bo)
++{
++ if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
++ return amdgpu_bo_size(bo);
++
++ return 0;
++}
++
+ /**
+ * amdgpu_vram_mgr_new - allocate new ranges
+ *
+@@ -140,7 +156,8 @@ static int amdgpu_vram_mgr_new(struct ttm_mem_type_manager *man,
+ num_nodes = DIV_ROUND_UP(mem->num_pages, pages_per_node);
+ }
+
+- nodes = kcalloc(num_nodes, sizeof(*nodes), GFP_KERNEL);
++ nodes = kvmalloc_array(num_nodes, sizeof(*nodes),
++ GFP_KERNEL | __GFP_ZERO);
+ if (!nodes)
+ return -ENOMEM;
+
+@@ -195,7 +212,7 @@ static int amdgpu_vram_mgr_new(struct ttm_mem_type_manager *man,
+ drm_mm_remove_node(&nodes[i]);
+ spin_unlock(&mgr->lock);
+
+- kfree(nodes);
++ kvfree(nodes);
+ return r == -ENOSPC ? 0 : r;
+ }
+
+@@ -234,7 +251,7 @@ static void amdgpu_vram_mgr_del(struct ttm_mem_type_manager *man,
+ atomic64_sub(usage, &mgr->usage);
+ atomic64_sub(vis_usage, &mgr->vis_usage);
+
+- kfree(mem->mm_node);
++ kvfree(mem->mm_node);
+ mem->mm_node = NULL;
+ }
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+index cf81065e3c5a..5183b46563f6 100644
+--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+@@ -467,8 +467,8 @@ static int vce_v3_0_hw_init(void *handle)
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ vce_v3_0_override_vce_clock_gating(adev, true);
+- if (!(adev->flags & AMD_IS_APU))
+- amdgpu_asic_set_vce_clocks(adev, 10000, 10000);
++
++ amdgpu_asic_set_vce_clocks(adev, 10000, 10000);
+
+ for (i = 0; i < adev->vce.num_rings; i++)
+ adev->vce.ring[i].ready = false;
+diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
+index 4968b6bb9466..0327e0a6802b 100644
+--- a/drivers/gpu/drm/amd/amdgpu/vi.c
++++ b/drivers/gpu/drm/amd/amdgpu/vi.c
+@@ -729,33 +729,59 @@ static int vi_set_uvd_clock(struct amdgpu_device *adev, u32 clock,
+ return r;
+
+ tmp = RREG32_SMC(cntl_reg);
+- tmp &= ~(CG_DCLK_CNTL__DCLK_DIR_CNTL_EN_MASK |
+- CG_DCLK_CNTL__DCLK_DIVIDER_MASK);
++
++ if (adev->flags & AMD_IS_APU)
++ tmp &= ~CG_DCLK_CNTL__DCLK_DIVIDER_MASK;
++ else
++ tmp &= ~(CG_DCLK_CNTL__DCLK_DIR_CNTL_EN_MASK |
++ CG_DCLK_CNTL__DCLK_DIVIDER_MASK);
+ tmp |= dividers.post_divider;
+ WREG32_SMC(cntl_reg, tmp);
+
+ for (i = 0; i < 100; i++) {
+- if (RREG32_SMC(status_reg) & CG_DCLK_STATUS__DCLK_STATUS_MASK)
+- break;
++ tmp = RREG32_SMC(status_reg);
++ if (adev->flags & AMD_IS_APU) {
++ if (tmp & 0x10000)
++ break;
++ } else {
++ if (tmp & CG_DCLK_STATUS__DCLK_STATUS_MASK)
++ break;
++ }
+ mdelay(10);
+ }
+ if (i == 100)
+ return -ETIMEDOUT;
+-
+ return 0;
+ }
+
++#define ixGNB_CLK1_DFS_CNTL 0xD82200F0
++#define ixGNB_CLK1_STATUS 0xD822010C
++#define ixGNB_CLK2_DFS_CNTL 0xD8220110
++#define ixGNB_CLK2_STATUS 0xD822012C
++#define ixGNB_CLK3_DFS_CNTL 0xD8220130
++#define ixGNB_CLK3_STATUS 0xD822014C
++
+ static int vi_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk)
+ {
+ int r;
+
+- r = vi_set_uvd_clock(adev, vclk, ixCG_VCLK_CNTL, ixCG_VCLK_STATUS);
+- if (r)
+- return r;
++ if (adev->flags & AMD_IS_APU) {
++ r = vi_set_uvd_clock(adev, vclk, ixGNB_CLK2_DFS_CNTL, ixGNB_CLK2_STATUS);
++ if (r)
++ return r;
+
+- r = vi_set_uvd_clock(adev, dclk, ixCG_DCLK_CNTL, ixCG_DCLK_STATUS);
+- if (r)
+- return r;
++ r = vi_set_uvd_clock(adev, dclk, ixGNB_CLK1_DFS_CNTL, ixGNB_CLK1_STATUS);
++ if (r)
++ return r;
++ } else {
++ r = vi_set_uvd_clock(adev, vclk, ixCG_VCLK_CNTL, ixCG_VCLK_STATUS);
++ if (r)
++ return r;
++
++ r = vi_set_uvd_clock(adev, dclk, ixCG_DCLK_CNTL, ixCG_DCLK_STATUS);
++ if (r)
++ return r;
++ }
+
+ return 0;
+ }
+@@ -765,6 +791,22 @@ static int vi_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
+ int r, i;
+ struct atom_clock_dividers dividers;
+ u32 tmp;
++ u32 reg_ctrl;
++ u32 reg_status;
++ u32 status_mask;
++ u32 reg_mask;
++
++ if (adev->flags & AMD_IS_APU) {
++ reg_ctrl = ixGNB_CLK3_DFS_CNTL;
++ reg_status = ixGNB_CLK3_STATUS;
++ status_mask = 0x00010000;
++ reg_mask = CG_ECLK_CNTL__ECLK_DIVIDER_MASK;
++ } else {
++ reg_ctrl = ixCG_ECLK_CNTL;
++ reg_status = ixCG_ECLK_STATUS;
++ status_mask = CG_ECLK_STATUS__ECLK_STATUS_MASK;
++ reg_mask = CG_ECLK_CNTL__ECLK_DIR_CNTL_EN_MASK | CG_ECLK_CNTL__ECLK_DIVIDER_MASK;
++ }
+
+ r = amdgpu_atombios_get_clock_dividers(adev,
+ COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK,
+@@ -773,24 +815,25 @@ static int vi_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk)
+ return r;
+
+ for (i = 0; i < 100; i++) {
+- if (RREG32_SMC(ixCG_ECLK_STATUS) & CG_ECLK_STATUS__ECLK_STATUS_MASK)
++ if (RREG32_SMC(reg_status) & status_mask)
+ break;
+ mdelay(10);
+ }
++
+ if (i == 100)
+ return -ETIMEDOUT;
+
+- tmp = RREG32_SMC(ixCG_ECLK_CNTL);
+- tmp &= ~(CG_ECLK_CNTL__ECLK_DIR_CNTL_EN_MASK |
+- CG_ECLK_CNTL__ECLK_DIVIDER_MASK);
++ tmp = RREG32_SMC(reg_ctrl);
++ tmp &= ~reg_mask;
+ tmp |= dividers.post_divider;
+- WREG32_SMC(ixCG_ECLK_CNTL, tmp);
++ WREG32_SMC(reg_ctrl, tmp);
+
+ for (i = 0; i < 100; i++) {
+- if (RREG32_SMC(ixCG_ECLK_STATUS) & CG_ECLK_STATUS__ECLK_STATUS_MASK)
++ if (RREG32_SMC(reg_status) & status_mask)
+ break;
+ mdelay(10);
+ }
++
+ if (i == 100)
+ return -ETIMEDOUT;
+
+diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+index 703c2d13603f..eb7c4cf19bf6 100644
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+@@ -889,7 +889,7 @@ static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane,
+ drm_object_attach_property(&plane->base.base,
+ props->alpha, 255);
+
+- if (desc->layout.xstride && desc->layout.pstride) {
++ if (desc->layout.xstride[0] && desc->layout.pstride[0]) {
+ int ret;
+
+ ret = drm_plane_create_rotation_property(&plane->base,
+diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
+index 61a2203b75df..be813b2738c1 100644
+--- a/drivers/gpu/drm/i915/i915_reg.h
++++ b/drivers/gpu/drm/i915/i915_reg.h
+@@ -2484,12 +2484,17 @@ enum i915_power_well_id {
+ #define _3D_CHICKEN _MMIO(0x2084)
+ #define _3D_CHICKEN_HIZ_PLANE_DISABLE_MSAA_4X_SNB (1 << 10)
+ #define _3D_CHICKEN2 _MMIO(0x208c)
++
++#define FF_SLICE_CHICKEN _MMIO(0x2088)
++#define FF_SLICE_CHICKEN_CL_PROVOKING_VERTEX_FIX (1 << 1)
++
+ /* Disables pipelining of read flushes past the SF-WIZ interface.
+ * Required on all Ironlake steppings according to the B-Spec, but the
+ * particular danger of not doing so is not specified.
+ */
+ # define _3D_CHICKEN2_WM_READ_PIPELINED (1 << 14)
+ #define _3D_CHICKEN3 _MMIO(0x2090)
++#define _3D_CHICKEN_SF_PROVOKING_VERTEX_FIX (1 << 12)
+ #define _3D_CHICKEN_SF_DISABLE_OBJEND_CULL (1 << 10)
+ #define _3D_CHICKEN3_SF_DISABLE_FASTCLIP_CULL (1 << 5)
+ #define _3D_CHICKEN_SDE_LIMIT_FIFO_POLY_DEPTH(x) ((x)<<1) /* gen8+ */
+diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
+index 6f972e6ec663..d638b641b760 100644
+--- a/drivers/gpu/drm/i915/intel_lrc.c
++++ b/drivers/gpu/drm/i915/intel_lrc.c
+@@ -1067,11 +1067,21 @@ static u32 *gen9_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
+ /* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt,glk */
+ batch = gen8_emit_flush_coherentl3_wa(engine, batch);
+
++ *batch++ = MI_LOAD_REGISTER_IMM(3);
++
+ /* WaDisableGatherAtSetShaderCommonSlice:skl,bxt,kbl,glk */
+- *batch++ = MI_LOAD_REGISTER_IMM(1);
+ *batch++ = i915_mmio_reg_offset(COMMON_SLICE_CHICKEN2);
+ *batch++ = _MASKED_BIT_DISABLE(
+ GEN9_DISABLE_GATHER_AT_SET_SHADER_COMMON_SLICE);
++
++ /* BSpec: 11391 */
++ *batch++ = i915_mmio_reg_offset(FF_SLICE_CHICKEN);
++ *batch++ = _MASKED_BIT_ENABLE(FF_SLICE_CHICKEN_CL_PROVOKING_VERTEX_FIX);
++
++ /* BSpec: 11299 */
++ *batch++ = i915_mmio_reg_offset(_3D_CHICKEN3);
++ *batch++ = _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_PROVOKING_VERTEX_FIX);
++
+ *batch++ = MI_NOOP;
+
+ /* WaClearSlmSpaceAtContextSwitch:kbl */
+diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
+index 9a9214ae0fb5..573bab222123 100644
+--- a/drivers/gpu/drm/qxl/qxl_display.c
++++ b/drivers/gpu/drm/qxl/qxl_display.c
+@@ -630,7 +630,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
+ struct qxl_cursor_cmd *cmd;
+ struct qxl_cursor *cursor;
+ struct drm_gem_object *obj;
+- struct qxl_bo *cursor_bo = NULL, *user_bo = NULL;
++ struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
+ int ret;
+ void *user_ptr;
+ int size = 64*64*4;
+@@ -684,7 +684,7 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
+ cursor_bo, 0);
+ cmd->type = QXL_CURSOR_SET;
+
+- qxl_bo_unref(&qcrtc->cursor_bo);
++ old_cursor_bo = qcrtc->cursor_bo;
+ qcrtc->cursor_bo = cursor_bo;
+ cursor_bo = NULL;
+ } else {
+@@ -704,6 +704,9 @@ static void qxl_cursor_atomic_update(struct drm_plane *plane,
+ qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
+ qxl_release_fence_buffer_objects(release);
+
++ if (old_cursor_bo)
++ qxl_bo_unref(&old_cursor_bo);
++
+ qxl_bo_unref(&cursor_bo);
+
+ return;
+diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
+index 33834db7c0a0..38a2ac24428e 100644
+--- a/drivers/md/dm-raid.c
++++ b/drivers/md/dm-raid.c
+@@ -3637,8 +3637,11 @@ static void raid_postsuspend(struct dm_target *ti)
+ {
+ struct raid_set *rs = ti->private;
+
+- if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
++ if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) {
++ mddev_lock_nointr(&rs->md);
+ mddev_suspend(&rs->md);
++ mddev_unlock(&rs->md);
++ }
+
+ rs->md.ro = 1;
+ }
+@@ -3898,8 +3901,11 @@ static void raid_resume(struct dm_target *ti)
+ if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
+ clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+
+- if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
++ if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) {
++ mddev_lock_nointr(mddev);
+ mddev_resume(mddev);
++ mddev_unlock(mddev);
++ }
+ }
+
+ static struct target_type raid_target = {
+diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
+index 03082e17c65c..72ce0bccc865 100644
+--- a/drivers/md/md-cluster.c
++++ b/drivers/md/md-cluster.c
+@@ -442,10 +442,11 @@ static void __remove_suspend_info(struct md_cluster_info *cinfo, int slot)
+ static void remove_suspend_info(struct mddev *mddev, int slot)
+ {
+ struct md_cluster_info *cinfo = mddev->cluster_info;
++ mddev->pers->quiesce(mddev, 1);
+ spin_lock_irq(&cinfo->suspend_lock);
+ __remove_suspend_info(cinfo, slot);
+ spin_unlock_irq(&cinfo->suspend_lock);
+- mddev->pers->quiesce(mddev, 2);
++ mddev->pers->quiesce(mddev, 0);
+ }
+
+
+@@ -492,13 +493,12 @@ static void process_suspend_info(struct mddev *mddev,
+ s->lo = lo;
+ s->hi = hi;
+ mddev->pers->quiesce(mddev, 1);
+- mddev->pers->quiesce(mddev, 0);
+ spin_lock_irq(&cinfo->suspend_lock);
+ /* Remove existing entry (if exists) before adding */
+ __remove_suspend_info(cinfo, slot);
+ list_add(&s->list, &cinfo->suspend_list);
+ spin_unlock_irq(&cinfo->suspend_lock);
+- mddev->pers->quiesce(mddev, 2);
++ mddev->pers->quiesce(mddev, 0);
+ }
+
+ static void process_add_new_disk(struct mddev *mddev, struct cluster_msg *cmsg)
+diff --git a/drivers/md/md.c b/drivers/md/md.c
+index 7143c8b9284b..11a67eac55b1 100644
+--- a/drivers/md/md.c
++++ b/drivers/md/md.c
+@@ -266,16 +266,31 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
+ * call has finished, the bio has been linked into some internal structure
+ * and so is visible to ->quiesce(), so we don't need the refcount any more.
+ */
++static bool is_suspended(struct mddev *mddev, struct bio *bio)
++{
++ if (mddev->suspended)
++ return true;
++ if (bio_data_dir(bio) != WRITE)
++ return false;
++ if (mddev->suspend_lo >= mddev->suspend_hi)
++ return false;
++ if (bio->bi_iter.bi_sector >= mddev->suspend_hi)
++ return false;
++ if (bio_end_sector(bio) < mddev->suspend_lo)
++ return false;
++ return true;
++}
++
+ void md_handle_request(struct mddev *mddev, struct bio *bio)
+ {
+ check_suspended:
+ rcu_read_lock();
+- if (mddev->suspended) {
++ if (is_suspended(mddev, bio)) {
+ DEFINE_WAIT(__wait);
+ for (;;) {
+ prepare_to_wait(&mddev->sb_wait, &__wait,
+ TASK_UNINTERRUPTIBLE);
+- if (!mddev->suspended)
++ if (!is_suspended(mddev, bio))
+ break;
+ rcu_read_unlock();
+ schedule();
+@@ -344,12 +359,17 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
+ void mddev_suspend(struct mddev *mddev)
+ {
+ WARN_ON_ONCE(mddev->thread && current == mddev->thread->tsk);
++ lockdep_assert_held(&mddev->reconfig_mutex);
+ if (mddev->suspended++)
+ return;
+ synchronize_rcu();
+ wake_up(&mddev->sb_wait);
++ set_bit(MD_ALLOW_SB_UPDATE, &mddev->flags);
++ smp_mb__after_atomic();
+ wait_event(mddev->sb_wait, atomic_read(&mddev->active_io) == 0);
+ mddev->pers->quiesce(mddev, 1);
++ clear_bit_unlock(MD_ALLOW_SB_UPDATE, &mddev->flags);
++ wait_event(mddev->sb_wait, !test_bit(MD_UPDATING_SB, &mddev->flags));
+
+ del_timer_sync(&mddev->safemode_timer);
+ }
+@@ -357,6 +377,7 @@ EXPORT_SYMBOL_GPL(mddev_suspend);
+
+ void mddev_resume(struct mddev *mddev)
+ {
++ lockdep_assert_held(&mddev->reconfig_mutex);
+ if (--mddev->suspended)
+ return;
+ wake_up(&mddev->sb_wait);
+@@ -663,6 +684,7 @@ void mddev_unlock(struct mddev *mddev)
+ */
+ spin_lock(&pers_lock);
+ md_wakeup_thread(mddev->thread);
++ wake_up(&mddev->sb_wait);
+ spin_unlock(&pers_lock);
+ }
+ EXPORT_SYMBOL_GPL(mddev_unlock);
+@@ -4828,7 +4850,7 @@ suspend_lo_show(struct mddev *mddev, char *page)
+ static ssize_t
+ suspend_lo_store(struct mddev *mddev, const char *buf, size_t len)
+ {
+- unsigned long long old, new;
++ unsigned long long new;
+ int err;
+
+ err = kstrtoull(buf, 10, &new);
+@@ -4844,16 +4866,10 @@ suspend_lo_store(struct mddev *mddev, const char *buf, size_t len)
+ if (mddev->pers == NULL ||
+ mddev->pers->quiesce == NULL)
+ goto unlock;
+- old = mddev->suspend_lo;
++ mddev_suspend(mddev);
+ mddev->suspend_lo = new;
+- if (new >= old)
+- /* Shrinking suspended region */
+- mddev->pers->quiesce(mddev, 2);
+- else {
+- /* Expanding suspended region - need to wait */
+- mddev->pers->quiesce(mddev, 1);
+- mddev->pers->quiesce(mddev, 0);
+- }
++ mddev_resume(mddev);
++
+ err = 0;
+ unlock:
+ mddev_unlock(mddev);
+@@ -4871,7 +4887,7 @@ suspend_hi_show(struct mddev *mddev, char *page)
+ static ssize_t
+ suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
+ {
+- unsigned long long old, new;
++ unsigned long long new;
+ int err;
+
+ err = kstrtoull(buf, 10, &new);
+@@ -4884,19 +4900,13 @@ suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
+ if (err)
+ return err;
+ err = -EINVAL;
+- if (mddev->pers == NULL ||
+- mddev->pers->quiesce == NULL)
++ if (mddev->pers == NULL)
+ goto unlock;
+- old = mddev->suspend_hi;
++
++ mddev_suspend(mddev);
+ mddev->suspend_hi = new;
+- if (new <= old)
+- /* Shrinking suspended region */
+- mddev->pers->quiesce(mddev, 2);
+- else {
+- /* Expanding suspended region - need to wait */
+- mddev->pers->quiesce(mddev, 1);
+- mddev->pers->quiesce(mddev, 0);
+- }
++ mddev_resume(mddev);
++
+ err = 0;
+ unlock:
+ mddev_unlock(mddev);
+@@ -6642,22 +6652,26 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
+ return -ENOENT; /* cannot remove what isn't there */
+ err = 0;
+ if (mddev->pers) {
+- mddev->pers->quiesce(mddev, 1);
+ if (fd >= 0) {
+ struct bitmap *bitmap;
+
+ bitmap = bitmap_create(mddev, -1);
++ mddev_suspend(mddev);
+ if (!IS_ERR(bitmap)) {
+ mddev->bitmap = bitmap;
+ err = bitmap_load(mddev);
+ } else
+ err = PTR_ERR(bitmap);
+- }
+- if (fd < 0 || err) {
++ if (err) {
++ bitmap_destroy(mddev);
++ fd = -1;
++ }
++ mddev_resume(mddev);
++ } else if (fd < 0) {
++ mddev_suspend(mddev);
+ bitmap_destroy(mddev);
+- fd = -1; /* make sure to put the file */
++ mddev_resume(mddev);
+ }
+- mddev->pers->quiesce(mddev, 0);
+ }
+ if (fd < 0) {
+ struct file *f = mddev->bitmap_info.file;
+@@ -6941,8 +6955,8 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
+ mddev->bitmap_info.default_offset;
+ mddev->bitmap_info.space =
+ mddev->bitmap_info.default_space;
+- mddev->pers->quiesce(mddev, 1);
+ bitmap = bitmap_create(mddev, -1);
++ mddev_suspend(mddev);
+ if (!IS_ERR(bitmap)) {
+ mddev->bitmap = bitmap;
+ rv = bitmap_load(mddev);
+@@ -6950,7 +6964,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
+ rv = PTR_ERR(bitmap);
+ if (rv)
+ bitmap_destroy(mddev);
+- mddev->pers->quiesce(mddev, 0);
++ mddev_resume(mddev);
+ } else {
+ /* remove the bitmap */
+ if (!mddev->bitmap) {
+@@ -6973,9 +6987,9 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
+ mddev->bitmap_info.nodes = 0;
+ md_cluster_ops->leave(mddev);
+ }
+- mddev->pers->quiesce(mddev, 1);
++ mddev_suspend(mddev);
+ bitmap_destroy(mddev);
+- mddev->pers->quiesce(mddev, 0);
++ mddev_resume(mddev);
+ mddev->bitmap_info.offset = 0;
+ }
+ }
+@@ -8858,6 +8872,16 @@ void md_check_recovery(struct mddev *mddev)
+ unlock:
+ wake_up(&mddev->sb_wait);
+ mddev_unlock(mddev);
++ } else if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags) && mddev->sb_flags) {
++ /* Write superblock - thread that called mddev_suspend()
++ * holds reconfig_mutex for us.
++ */
++ set_bit(MD_UPDATING_SB, &mddev->flags);
++ smp_mb__after_atomic();
++ if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags))
++ md_update_sb(mddev, 0);
++ clear_bit_unlock(MD_UPDATING_SB, &mddev->flags);
++ wake_up(&mddev->sb_wait);
+ }
+ }
+ EXPORT_SYMBOL(md_check_recovery);
+diff --git a/drivers/md/md.h b/drivers/md/md.h
+index 9b0a896890ef..11696aba94e3 100644
+--- a/drivers/md/md.h
++++ b/drivers/md/md.h
+@@ -237,6 +237,12 @@ enum mddev_flags {
+ */
+ MD_HAS_PPL, /* The raid array has PPL feature set */
+ MD_HAS_MULTIPLE_PPLS, /* The raid array has multiple PPLs feature set */
++ MD_ALLOW_SB_UPDATE, /* md_check_recovery is allowed to update
++ * the metadata without taking reconfig_mutex.
++ */
++ MD_UPDATING_SB, /* md_check_recovery is updating the metadata
++ * without explicitly holding reconfig_mutex.
++ */
+ };
+
+ enum mddev_sb_flags {
+@@ -540,12 +546,11 @@ struct md_personality
+ int (*check_reshape) (struct mddev *mddev);
+ int (*start_reshape) (struct mddev *mddev);
+ void (*finish_reshape) (struct mddev *mddev);
+- /* quiesce moves between quiescence states
+- * 0 - fully active
+- * 1 - no new requests allowed
+- * others - reserved
++ /* quiesce suspends or resumes internal processing.
++ * 1 - stop new actions and wait for action io to complete
++ * 0 - return to normal behaviour
+ */
+- void (*quiesce) (struct mddev *mddev, int state);
++ void (*quiesce) (struct mddev *mddev, int quiesce);
+ /* takeover is used to transition an array from one
+ * personality to another. The new personality must be able
+ * to handle the data in the current layout.
+diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
+index 5a00fc118470..5ecba9eef441 100644
+--- a/drivers/md/raid0.c
++++ b/drivers/md/raid0.c
+@@ -768,7 +768,7 @@ static void *raid0_takeover(struct mddev *mddev)
+ return ERR_PTR(-EINVAL);
+ }
+
+-static void raid0_quiesce(struct mddev *mddev, int state)
++static void raid0_quiesce(struct mddev *mddev, int quiesce)
+ {
+ }
+
+diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
+index e4e01d3bab81..029ecba60727 100644
+--- a/drivers/md/raid1.c
++++ b/drivers/md/raid1.c
+@@ -1298,11 +1298,9 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
+ */
+
+
+- if ((bio_end_sector(bio) > mddev->suspend_lo &&
+- bio->bi_iter.bi_sector < mddev->suspend_hi) ||
+- (mddev_is_clustered(mddev) &&
++ if (mddev_is_clustered(mddev) &&
+ md_cluster_ops->area_resyncing(mddev, WRITE,
+- bio->bi_iter.bi_sector, bio_end_sector(bio)))) {
++ bio->bi_iter.bi_sector, bio_end_sector(bio))) {
+
+ /*
+ * As the suspend_* range is controlled by userspace, we want
+@@ -1313,12 +1311,10 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
+ sigset_t full, old;
+ prepare_to_wait(&conf->wait_barrier,
+ &w, TASK_INTERRUPTIBLE);
+- if ((bio_end_sector(bio) <= mddev->suspend_lo ||
+- bio->bi_iter.bi_sector >= mddev->suspend_hi) &&
+- (!mddev_is_clustered(mddev) ||
+- !md_cluster_ops->area_resyncing(mddev, WRITE,
++ if (!mddev_is_clustered(mddev) ||
++ !md_cluster_ops->area_resyncing(mddev, WRITE,
+ bio->bi_iter.bi_sector,
+- bio_end_sector(bio))))
++ bio_end_sector(bio)))
+ break;
+ sigfillset(&full);
+ sigprocmask(SIG_BLOCK, &full, &old);
+@@ -3280,21 +3276,14 @@ static int raid1_reshape(struct mddev *mddev)
+ return 0;
+ }
+
+-static void raid1_quiesce(struct mddev *mddev, int state)
++static void raid1_quiesce(struct mddev *mddev, int quiesce)
+ {
+ struct r1conf *conf = mddev->private;
+
+- switch(state) {
+- case 2: /* wake for suspend */
+- wake_up(&conf->wait_barrier);
+- break;
+- case 1:
++ if (quiesce)
+ freeze_array(conf, 0);
+- break;
+- case 0:
++ else
+ unfreeze_array(conf);
+- break;
+- }
+ }
+
+ static void *raid1_takeover(struct mddev *mddev)
+diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
+index 5fb31ef52945..b20c23f970f4 100644
+--- a/drivers/md/raid10.c
++++ b/drivers/md/raid10.c
+@@ -3838,18 +3838,14 @@ static void raid10_free(struct mddev *mddev, void *priv)
+ kfree(conf);
+ }
+
+-static void raid10_quiesce(struct mddev *mddev, int state)
++static void raid10_quiesce(struct mddev *mddev, int quiesce)
+ {
+ struct r10conf *conf = mddev->private;
+
+- switch(state) {
+- case 1:
++ if (quiesce)
+ raise_barrier(conf, 0);
+- break;
+- case 0:
++ else
+ lower_barrier(conf);
+- break;
+- }
+ }
+
+ static int raid10_resize(struct mddev *mddev, sector_t sectors)
+diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
+index 9a340728b846..0d535b40cb3b 100644
+--- a/drivers/md/raid5-cache.c
++++ b/drivers/md/raid5-cache.c
+@@ -693,6 +693,8 @@ static void r5c_disable_writeback_async(struct work_struct *work)
+ struct r5l_log *log = container_of(work, struct r5l_log,
+ disable_writeback_work);
+ struct mddev *mddev = log->rdev->mddev;
++ struct r5conf *conf = mddev->private;
++ int locked = 0;
+
+ if (log->r5c_journal_mode == R5C_JOURNAL_MODE_WRITE_THROUGH)
+ return;
+@@ -701,11 +703,15 @@ static void r5c_disable_writeback_async(struct work_struct *work)
+
+ /* wait superblock change before suspend */
+ wait_event(mddev->sb_wait,
+- !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
+-
+- mddev_suspend(mddev);
+- log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
+- mddev_resume(mddev);
++ conf->log == NULL ||
++ (!test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) &&
++ (locked = mddev_trylock(mddev))));
++ if (locked) {
++ mddev_suspend(mddev);
++ log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
++ mddev_resume(mddev);
++ mddev_unlock(mddev);
++ }
+ }
+
+ static void r5l_submit_current_io(struct r5l_log *log)
+@@ -1583,21 +1589,21 @@ void r5l_wake_reclaim(struct r5l_log *log, sector_t space)
+ md_wakeup_thread(log->reclaim_thread);
+ }
+
+-void r5l_quiesce(struct r5l_log *log, int state)
++void r5l_quiesce(struct r5l_log *log, int quiesce)
+ {
+ struct mddev *mddev;
+- if (!log || state == 2)
++ if (!log)
+ return;
+- if (state == 0)
+- kthread_unpark(log->reclaim_thread->tsk);
+- else if (state == 1) {
++
++ if (quiesce) {
+ /* make sure r5l_write_super_and_discard_space exits */
+ mddev = log->rdev->mddev;
+ wake_up(&mddev->sb_wait);
+ kthread_park(log->reclaim_thread->tsk);
+ r5l_wake_reclaim(log, MaxSector);
+ r5l_do_reclaim(log);
+- }
++ } else
++ kthread_unpark(log->reclaim_thread->tsk);
+ }
+
+ bool r5l_log_disk_error(struct r5conf *conf)
+@@ -3161,6 +3167,8 @@ void r5l_exit_log(struct r5conf *conf)
+ conf->log = NULL;
+ synchronize_rcu();
+
++ /* Ensure disable_writeback_work wakes up and exits */
++ wake_up(&conf->mddev->sb_wait);
+ flush_work(&log->disable_writeback_work);
+ md_unregister_thread(&log->reclaim_thread);
+ mempool_destroy(log->meta_pool);
+diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h
+index 7f9ad5f7cda0..284578b0a349 100644
+--- a/drivers/md/raid5-log.h
++++ b/drivers/md/raid5-log.h
+@@ -9,7 +9,7 @@ extern void r5l_write_stripe_run(struct r5l_log *log);
+ extern void r5l_flush_stripe_to_raid(struct r5l_log *log);
+ extern void r5l_stripe_write_finished(struct stripe_head *sh);
+ extern int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio);
+-extern void r5l_quiesce(struct r5l_log *log, int state);
++extern void r5l_quiesce(struct r5l_log *log, int quiesce);
+ extern bool r5l_log_disk_error(struct r5conf *conf);
+ extern bool r5c_is_writeback(struct r5l_log *log);
+ extern int
+diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
+index de1ef6264ee7..07ca2fd10189 100644
+--- a/drivers/md/raid5.c
++++ b/drivers/md/raid5.c
+@@ -5686,28 +5686,6 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
+ goto retry;
+ }
+
+- if (rw == WRITE &&
+- logical_sector >= mddev->suspend_lo &&
+- logical_sector < mddev->suspend_hi) {
+- raid5_release_stripe(sh);
+- /* As the suspend_* range is controlled by
+- * userspace, we want an interruptible
+- * wait.
+- */
+- prepare_to_wait(&conf->wait_for_overlap,
+- &w, TASK_INTERRUPTIBLE);
+- if (logical_sector >= mddev->suspend_lo &&
+- logical_sector < mddev->suspend_hi) {
+- sigset_t full, old;
+- sigfillset(&full);
+- sigprocmask(SIG_BLOCK, &full, &old);
+- schedule();
+- sigprocmask(SIG_SETMASK, &old, NULL);
+- do_prepare = true;
+- }
+- goto retry;
+- }
+-
+ if (test_bit(STRIPE_EXPANDING, &sh->state) ||
+ !add_stripe_bio(sh, bi, dd_idx, rw, previous)) {
+ /* Stripe is busy expanding or
+@@ -8025,16 +8003,12 @@ static void raid5_finish_reshape(struct mddev *mddev)
+ }
+ }
+
+-static void raid5_quiesce(struct mddev *mddev, int state)
++static void raid5_quiesce(struct mddev *mddev, int quiesce)
+ {
+ struct r5conf *conf = mddev->private;
+
+- switch(state) {
+- case 2: /* resume for a suspend */
+- wake_up(&conf->wait_for_overlap);
+- break;
+-
+- case 1: /* stop all writes */
++ if (quiesce) {
++ /* stop all writes */
+ lock_all_device_hash_locks_irq(conf);
+ /* '2' tells resync/reshape to pause so that all
+ * active stripes can drain
+@@ -8050,17 +8024,15 @@ static void raid5_quiesce(struct mddev *mddev, int state)
+ unlock_all_device_hash_locks_irq(conf);
+ /* allow reshape to continue */
+ wake_up(&conf->wait_for_overlap);
+- break;
+-
+- case 0: /* re-enable writes */
++ } else {
++ /* re-enable writes */
+ lock_all_device_hash_locks_irq(conf);
+ conf->quiesce = 0;
+ wake_up(&conf->wait_for_quiescent);
+ wake_up(&conf->wait_for_overlap);
+ unlock_all_device_hash_locks_irq(conf);
+- break;
+ }
+- r5l_quiesce(conf->log, state);
++ r5l_quiesce(conf->log, quiesce);
+ }
+
+ static void *raid45_takeover_raid0(struct mddev *mddev, int level)
+diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
+index 528e04f96c13..d410de331854 100644
+--- a/drivers/mtd/nand/nand_base.c
++++ b/drivers/mtd/nand/nand_base.c
+@@ -440,7 +440,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs)
+
+ for (; page < page_end; page++) {
+ res = chip->ecc.read_oob(mtd, chip, page);
+- if (res)
++ if (res < 0)
+ return res;
+
+ bad = chip->oob_poi[chip->badblockpos];
+diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
+index 274f3679f33d..acf64d4cd94c 100644
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -1549,6 +1549,18 @@ static const struct b53_chip_data b53_switch_chips[] = {
+ .cpu_port = B53_CPU_PORT_25,
+ .duplex_reg = B53_DUPLEX_STAT_FE,
+ },
++ {
++ .chip_id = BCM5389_DEVICE_ID,
++ .dev_name = "BCM5389",
++ .vlans = 4096,
++ .enabled_ports = 0x1f,
++ .arl_entries = 4,
++ .cpu_port = B53_CPU_PORT,
++ .vta_regs = B53_VTA_REGS,
++ .duplex_reg = B53_DUPLEX_STAT_GE,
++ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
++ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
++ },
+ {
+ .chip_id = BCM5395_DEVICE_ID,
+ .dev_name = "BCM5395",
+@@ -1872,6 +1884,7 @@ int b53_switch_detect(struct b53_device *dev)
+ else
+ dev->chip_id = BCM5365_DEVICE_ID;
+ break;
++ case BCM5389_DEVICE_ID:
+ case BCM5395_DEVICE_ID:
+ case BCM5397_DEVICE_ID:
+ case BCM5398_DEVICE_ID:
+diff --git a/drivers/net/dsa/b53/b53_mdio.c b/drivers/net/dsa/b53/b53_mdio.c
+index fa7556f5d4fb..a533a90e3904 100644
+--- a/drivers/net/dsa/b53/b53_mdio.c
++++ b/drivers/net/dsa/b53/b53_mdio.c
+@@ -285,6 +285,7 @@ static const struct b53_io_ops b53_mdio_ops = {
+ #define B53_BRCM_OUI_1 0x0143bc00
+ #define B53_BRCM_OUI_2 0x03625c00
+ #define B53_BRCM_OUI_3 0x00406000
++#define B53_BRCM_OUI_4 0x01410c00
+
+ static int b53_mdio_probe(struct mdio_device *mdiodev)
+ {
+@@ -311,7 +312,8 @@ static int b53_mdio_probe(struct mdio_device *mdiodev)
+ */
+ if ((phy_id & 0xfffffc00) != B53_BRCM_OUI_1 &&
+ (phy_id & 0xfffffc00) != B53_BRCM_OUI_2 &&
+- (phy_id & 0xfffffc00) != B53_BRCM_OUI_3) {
++ (phy_id & 0xfffffc00) != B53_BRCM_OUI_3 &&
++ (phy_id & 0xfffffc00) != B53_BRCM_OUI_4) {
+ dev_err(&mdiodev->dev, "Unsupported device: 0x%08x\n", phy_id);
+ return -ENODEV;
+ }
+@@ -360,6 +362,7 @@ static const struct of_device_id b53_of_match[] = {
+ { .compatible = "brcm,bcm53125" },
+ { .compatible = "brcm,bcm53128" },
+ { .compatible = "brcm,bcm5365" },
++ { .compatible = "brcm,bcm5389" },
+ { .compatible = "brcm,bcm5395" },
+ { .compatible = "brcm,bcm5397" },
+ { .compatible = "brcm,bcm5398" },
+diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
+index 01bd8cbe9a3f..6b9e39ddaec1 100644
+--- a/drivers/net/dsa/b53/b53_priv.h
++++ b/drivers/net/dsa/b53/b53_priv.h
+@@ -48,6 +48,7 @@ struct b53_io_ops {
+ enum {
+ BCM5325_DEVICE_ID = 0x25,
+ BCM5365_DEVICE_ID = 0x65,
++ BCM5389_DEVICE_ID = 0x89,
+ BCM5395_DEVICE_ID = 0x95,
+ BCM5397_DEVICE_ID = 0x97,
+ BCM5398_DEVICE_ID = 0x98,
+diff --git a/drivers/net/ethernet/natsemi/sonic.c b/drivers/net/ethernet/natsemi/sonic.c
+index 612c7a44b26c..23821540ab07 100644
+--- a/drivers/net/ethernet/natsemi/sonic.c
++++ b/drivers/net/ethernet/natsemi/sonic.c
+@@ -71,7 +71,7 @@ static int sonic_open(struct net_device *dev)
+ for (i = 0; i < SONIC_NUM_RRS; i++) {
+ dma_addr_t laddr = dma_map_single(lp->device, skb_put(lp->rx_skb[i], SONIC_RBSIZE),
+ SONIC_RBSIZE, DMA_FROM_DEVICE);
+- if (!laddr) {
++ if (dma_mapping_error(lp->device, laddr)) {
+ while(i > 0) { /* free any that were mapped successfully */
+ i--;
+ dma_unmap_single(lp->device, lp->rx_laddr[i], SONIC_RBSIZE, DMA_FROM_DEVICE);
+diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
+index 8e06f308ce44..b23ee948e7c9 100644
+--- a/drivers/net/usb/qmi_wwan.c
++++ b/drivers/net/usb/qmi_wwan.c
+@@ -1103,6 +1103,7 @@ static const struct usb_device_id products[] = {
+ {QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
+ {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */
+ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
++ {QMI_FIXED_INTF(0x0846, 0x68d3, 8)}, /* Netgear Aircard 779S */
+ {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */
+ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */
+ {QMI_FIXED_INTF(0x1435, 0xd181, 3)}, /* Wistron NeWeb D18Q1 */
+diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+index 12a9b86d71ea..dffa697d71e0 100644
+--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
++++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+@@ -1499,14 +1499,13 @@ static void iwl_pcie_set_interrupt_capa(struct pci_dev *pdev,
+ struct iwl_trans *trans)
+ {
+ struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+- int max_irqs, num_irqs, i, ret, nr_online_cpus;
++ int max_irqs, num_irqs, i, ret;
+ u16 pci_cmd;
+
+ if (!trans->cfg->mq_rx_supported)
+ goto enable_msi;
+
+- nr_online_cpus = num_online_cpus();
+- max_irqs = min_t(u32, nr_online_cpus + 2, IWL_MAX_RX_HW_QUEUES);
++ max_irqs = min_t(u32, num_online_cpus() + 2, IWL_MAX_RX_HW_QUEUES);
+ for (i = 0; i < max_irqs; i++)
+ trans_pcie->msix_entries[i].entry = i;
+
+@@ -1532,16 +1531,17 @@ static void iwl_pcie_set_interrupt_capa(struct pci_dev *pdev,
+ * Two interrupts less: non rx causes shared with FBQ and RSS.
+ * More than two interrupts: we will use fewer RSS queues.
+ */
+- if (num_irqs <= nr_online_cpus) {
++ if (num_irqs <= max_irqs - 2) {
+ trans_pcie->trans->num_rx_queues = num_irqs + 1;
+ trans_pcie->shared_vec_mask = IWL_SHARED_IRQ_NON_RX |
+ IWL_SHARED_IRQ_FIRST_RSS;
+- } else if (num_irqs == nr_online_cpus + 1) {
++ } else if (num_irqs == max_irqs - 1) {
+ trans_pcie->trans->num_rx_queues = num_irqs;
+ trans_pcie->shared_vec_mask = IWL_SHARED_IRQ_NON_RX;
+ } else {
+ trans_pcie->trans->num_rx_queues = num_irqs - 1;
+ }
++ WARN_ON(trans_pcie->trans->num_rx_queues > IWL_MAX_RX_HW_QUEUES);
+
+ trans_pcie->alloc_vecs = num_irqs;
+ trans_pcie->msix_enabled = true;
+diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
+index 48e1541dc8d4..7440f650e81a 100644
+--- a/drivers/platform/x86/asus-wmi.c
++++ b/drivers/platform/x86/asus-wmi.c
+@@ -161,6 +161,16 @@ MODULE_LICENSE("GPL");
+
+ static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
+
++static bool ashs_present(void)
++{
++ int i = 0;
++ while (ashs_ids[i]) {
++ if (acpi_dev_found(ashs_ids[i++]))
++ return true;
++ }
++ return false;
++}
++
+ struct bios_args {
+ u32 arg0;
+ u32 arg1;
+@@ -962,6 +972,9 @@ static int asus_new_rfkill(struct asus_wmi *asus,
+
+ static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
+ {
++ if (asus->driver->wlan_ctrl_by_user && ashs_present())
++ return;
++
+ asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
+ asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
+ asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
+@@ -2058,16 +2071,6 @@ static int asus_wmi_fan_init(struct asus_wmi *asus)
+ return 0;
+ }
+
+-static bool ashs_present(void)
+-{
+- int i = 0;
+- while (ashs_ids[i]) {
+- if (acpi_dev_found(ashs_ids[i++]))
+- return true;
+- }
+- return false;
+-}
+-
+ /*
+ * WMI Driver
+ */
+diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
+index e67c1d8a193d..d072f84a8535 100644
+--- a/drivers/s390/block/dasd.c
++++ b/drivers/s390/block/dasd.c
+@@ -3049,7 +3049,8 @@ static blk_status_t do_dasd_request(struct blk_mq_hw_ctx *hctx,
+ cqr->callback_data = req;
+ cqr->status = DASD_CQR_FILLED;
+ cqr->dq = dq;
+- req->completion_data = cqr;
++ *((struct dasd_ccw_req **) blk_mq_rq_to_pdu(req)) = cqr;
++
+ blk_mq_start_request(req);
+ spin_lock(&block->queue_lock);
+ list_add_tail(&cqr->blocklist, &block->ccw_queue);
+@@ -3073,12 +3074,13 @@ static blk_status_t do_dasd_request(struct blk_mq_hw_ctx *hctx,
+ */
+ enum blk_eh_timer_return dasd_times_out(struct request *req, bool reserved)
+ {
+- struct dasd_ccw_req *cqr = req->completion_data;
+ struct dasd_block *block = req->q->queuedata;
+ struct dasd_device *device;
++ struct dasd_ccw_req *cqr;
+ unsigned long flags;
+ int rc = 0;
+
++ cqr = *((struct dasd_ccw_req **) blk_mq_rq_to_pdu(req));
+ if (!cqr)
+ return BLK_EH_NOT_HANDLED;
+
+@@ -3184,6 +3186,7 @@ static int dasd_alloc_queue(struct dasd_block *block)
+ int rc;
+
+ block->tag_set.ops = &dasd_mq_ops;
++ block->tag_set.cmd_size = sizeof(struct dasd_ccw_req *);
+ block->tag_set.nr_hw_queues = DASD_NR_HW_QUEUES;
+ block->tag_set.queue_depth = DASD_MAX_LCU_DEV * DASD_REQ_PER_DEV;
+ block->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
+diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
+index 91faa7f035b9..babbd94c32d9 100644
+--- a/drivers/staging/android/ion/ion_heap.c
++++ b/drivers/staging/android/ion/ion_heap.c
+@@ -38,7 +38,7 @@ void *ion_heap_map_kernel(struct ion_heap *heap,
+ struct page **tmp = pages;
+
+ if (!pages)
+- return NULL;
++ return ERR_PTR(-ENOMEM);
+
+ if (buffer->flags & ION_FLAG_CACHED)
+ pgprot = PAGE_KERNEL;
+diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
+index 1c70541a1467..0475f9685a41 100644
+--- a/drivers/tty/n_tty.c
++++ b/drivers/tty/n_tty.c
+@@ -126,6 +126,8 @@ struct n_tty_data {
+ struct mutex output_lock;
+ };
+
++#define MASK(x) ((x) & (N_TTY_BUF_SIZE - 1))
++
+ static inline size_t read_cnt(struct n_tty_data *ldata)
+ {
+ return ldata->read_head - ldata->read_tail;
+@@ -143,6 +145,7 @@ static inline unsigned char *read_buf_addr(struct n_tty_data *ldata, size_t i)
+
+ static inline unsigned char echo_buf(struct n_tty_data *ldata, size_t i)
+ {
++ smp_rmb(); /* Matches smp_wmb() in add_echo_byte(). */
+ return ldata->echo_buf[i & (N_TTY_BUF_SIZE - 1)];
+ }
+
+@@ -318,9 +321,7 @@ static inline void put_tty_queue(unsigned char c, struct n_tty_data *ldata)
+ static void reset_buffer_flags(struct n_tty_data *ldata)
+ {
+ ldata->read_head = ldata->canon_head = ldata->read_tail = 0;
+- ldata->echo_head = ldata->echo_tail = ldata->echo_commit = 0;
+ ldata->commit_head = 0;
+- ldata->echo_mark = 0;
+ ldata->line_start = 0;
+
+ ldata->erasing = 0;
+@@ -619,12 +620,19 @@ static size_t __process_echoes(struct tty_struct *tty)
+ old_space = space = tty_write_room(tty);
+
+ tail = ldata->echo_tail;
+- while (ldata->echo_commit != tail) {
++ while (MASK(ldata->echo_commit) != MASK(tail)) {
+ c = echo_buf(ldata, tail);
+ if (c == ECHO_OP_START) {
+ unsigned char op;
+ int no_space_left = 0;
+
++ /*
++ * Since add_echo_byte() is called without holding
++ * output_lock, we might see only portion of multi-byte
++ * operation.
++ */
++ if (MASK(ldata->echo_commit) == MASK(tail + 1))
++ goto not_yet_stored;
+ /*
+ * If the buffer byte is the start of a multi-byte
+ * operation, get the next byte, which is either the
+@@ -636,6 +644,8 @@ static size_t __process_echoes(struct tty_struct *tty)
+ unsigned int num_chars, num_bs;
+
+ case ECHO_OP_ERASE_TAB:
++ if (MASK(ldata->echo_commit) == MASK(tail + 2))
++ goto not_yet_stored;
+ num_chars = echo_buf(ldata, tail + 2);
+
+ /*
+@@ -730,7 +740,8 @@ static size_t __process_echoes(struct tty_struct *tty)
+ /* If the echo buffer is nearly full (so that the possibility exists
+ * of echo overrun before the next commit), then discard enough
+ * data at the tail to prevent a subsequent overrun */
+- while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
++ while (ldata->echo_commit > tail &&
++ ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
+ if (echo_buf(ldata, tail) == ECHO_OP_START) {
+ if (echo_buf(ldata, tail + 1) == ECHO_OP_ERASE_TAB)
+ tail += 3;
+@@ -740,6 +751,7 @@ static size_t __process_echoes(struct tty_struct *tty)
+ tail++;
+ }
+
++ not_yet_stored:
+ ldata->echo_tail = tail;
+ return old_space - space;
+ }
+@@ -750,6 +762,7 @@ static void commit_echoes(struct tty_struct *tty)
+ size_t nr, old, echoed;
+ size_t head;
+
++ mutex_lock(&ldata->output_lock);
+ head = ldata->echo_head;
+ ldata->echo_mark = head;
+ old = ldata->echo_commit - ldata->echo_tail;
+@@ -758,10 +771,12 @@ static void commit_echoes(struct tty_struct *tty)
+ * is over the threshold (and try again each time another
+ * block is accumulated) */
+ nr = head - ldata->echo_tail;
+- if (nr < ECHO_COMMIT_WATERMARK || (nr % ECHO_BLOCK > old % ECHO_BLOCK))
++ if (nr < ECHO_COMMIT_WATERMARK ||
++ (nr % ECHO_BLOCK > old % ECHO_BLOCK)) {
++ mutex_unlock(&ldata->output_lock);
+ return;
++ }
+
+- mutex_lock(&ldata->output_lock);
+ ldata->echo_commit = head;
+ echoed = __process_echoes(tty);
+ mutex_unlock(&ldata->output_lock);
+@@ -812,7 +827,9 @@ static void flush_echoes(struct tty_struct *tty)
+
+ static inline void add_echo_byte(unsigned char c, struct n_tty_data *ldata)
+ {
+- *echo_buf_addr(ldata, ldata->echo_head++) = c;
++ *echo_buf_addr(ldata, ldata->echo_head) = c;
++ smp_wmb(); /* Matches smp_rmb() in echo_buf(). */
++ ldata->echo_head++;
+ }
+
+ /**
+@@ -980,14 +997,15 @@ static void eraser(unsigned char c, struct tty_struct *tty)
+ }
+
+ seen_alnums = 0;
+- while (ldata->read_head != ldata->canon_head) {
++ while (MASK(ldata->read_head) != MASK(ldata->canon_head)) {
+ head = ldata->read_head;
+
+ /* erase a single possibly multibyte character */
+ do {
+ head--;
+ c = read_buf(ldata, head);
+- } while (is_continuation(c, tty) && head != ldata->canon_head);
++ } while (is_continuation(c, tty) &&
++ MASK(head) != MASK(ldata->canon_head));
+
+ /* do not partially erase */
+ if (is_continuation(c, tty))
+@@ -1029,7 +1047,7 @@ static void eraser(unsigned char c, struct tty_struct *tty)
+ * This info is used to go back the correct
+ * number of columns.
+ */
+- while (tail != ldata->canon_head) {
++ while (MASK(tail) != MASK(ldata->canon_head)) {
+ tail--;
+ c = read_buf(ldata, tail);
+ if (c == '\t') {
+@@ -1304,7 +1322,7 @@ n_tty_receive_char_special(struct tty_struct *tty, unsigned char c)
+ finish_erasing(ldata);
+ echo_char(c, tty);
+ echo_char_raw('\n', ldata);
+- while (tail != ldata->read_head) {
++ while (MASK(tail) != MASK(ldata->read_head)) {
+ echo_char(read_buf(ldata, tail), tty);
+ tail++;
+ }
+@@ -1880,30 +1898,21 @@ static int n_tty_open(struct tty_struct *tty)
+ struct n_tty_data *ldata;
+
+ /* Currently a malloc failure here can panic */
+- ldata = vmalloc(sizeof(*ldata));
++ ldata = vzalloc(sizeof(*ldata));
+ if (!ldata)
+- goto err;
++ return -ENOMEM;
+
+ ldata->overrun_time = jiffies;
+ mutex_init(&ldata->atomic_read_lock);
+ mutex_init(&ldata->output_lock);
+
+ tty->disc_data = ldata;
+- reset_buffer_flags(tty->disc_data);
+- ldata->column = 0;
+- ldata->canon_column = 0;
+- ldata->num_overrun = 0;
+- ldata->no_room = 0;
+- ldata->lnext = 0;
+ tty->closing = 0;
+ /* indicate buffer work may resume */
+ clear_bit(TTY_LDISC_HALTED, &tty->flags);
+ n_tty_set_termios(tty, NULL);
+ tty_unthrottle(tty);
+-
+ return 0;
+-err:
+- return -ENOMEM;
+ }
+
+ static inline int input_available_p(struct tty_struct *tty, int poll)
+@@ -2413,7 +2422,7 @@ static unsigned long inq_canon(struct n_tty_data *ldata)
+ tail = ldata->read_tail;
+ nr = head - tail;
+ /* Skip EOF-chars.. */
+- while (head != tail) {
++ while (MASK(head) != MASK(tail)) {
+ if (test_bit(tail & (N_TTY_BUF_SIZE - 1), ldata->read_flags) &&
+ read_buf(ldata, tail) == __DISABLED_CHAR)
+ nr--;
+diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
+index 97db76afced2..ae2564ecddcd 100644
+--- a/drivers/tty/serdev/core.c
++++ b/drivers/tty/serdev/core.c
+@@ -482,6 +482,7 @@ EXPORT_SYMBOL_GPL(__serdev_device_driver_register);
+ static void __exit serdev_exit(void)
+ {
+ bus_unregister(&serdev_bus_type);
++ ida_destroy(&ctrl_ida);
+ }
+ module_exit(serdev_exit);
+
+diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
+index 0d814a87acb2..4986b4aebe80 100644
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -3345,9 +3345,7 @@ static const struct pci_device_id blacklist[] = {
+ /* multi-io cards handled by parport_serial */
+ { PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
+ { PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */
+- { PCI_DEVICE(0x4348, 0x7173), }, /* WCH CH355 4S */
+ { PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */
+- { PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */
+
+ /* Moxa Smartio MUE boards handled by 8250_moxa */
+ { PCI_VDEVICE(MOXA, 0x1024), },
+diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
+index de67abbda921..e77421e7bf46 100644
+--- a/drivers/tty/vt/vt.c
++++ b/drivers/tty/vt/vt.c
+@@ -782,7 +782,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
+ if (!*vc->vc_uni_pagedir_loc)
+ con_set_default_unimap(vc);
+
+- vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
++ vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_KERNEL);
+ if (!vc->vc_screenbuf)
+ goto err_free;
+
+@@ -869,7 +869,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
+
+ if (new_screen_size > (4 << 20))
+ return -EINVAL;
+- newscreen = kmalloc(new_screen_size, GFP_USER);
++ newscreen = kzalloc(new_screen_size, GFP_USER);
+ if (!newscreen)
+ return -ENOMEM;
+
+diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
+index 22952d70b981..3b9aadd007f5 100644
+--- a/drivers/usb/class/cdc-acm.c
++++ b/drivers/usb/class/cdc-acm.c
+@@ -1771,6 +1771,9 @@ static const struct usb_device_id acm_ids[] = {
+ { USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
+ .driver_info = SINGLE_RX_URB,
+ },
++ { USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */
++ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
++ },
+ { USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */
+ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+ },
+diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
+index 3ae8b1bbaa55..7f51a77bc5cc 100644
+--- a/drivers/usb/dwc2/hcd_queue.c
++++ b/drivers/usb/dwc2/hcd_queue.c
+@@ -379,7 +379,7 @@ static unsigned long *dwc2_get_ls_map(struct dwc2_hsotg *hsotg,
+ /* Get the map and adjust if this is a multi_tt hub */
+ map = qh->dwc_tt->periodic_bitmaps;
+ if (qh->dwc_tt->usb_tt->multi)
+- map += DWC2_ELEMENTS_PER_LS_BITMAP * qh->ttport;
++ map += DWC2_ELEMENTS_PER_LS_BITMAP * (qh->ttport - 1);
+
+ return map;
+ }
+diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
+index efd7e4882d66..00b710016d21 100644
+--- a/drivers/usb/host/xhci-mem.c
++++ b/drivers/usb/host/xhci-mem.c
+@@ -891,12 +891,12 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id)
+
+ dev = xhci->devs[slot_id];
+
+- trace_xhci_free_virt_device(dev);
+-
+ xhci->dcbaa->dev_context_ptrs[slot_id] = 0;
+ if (!dev)
+ return;
+
++ trace_xhci_free_virt_device(dev);
++
+ if (dev->tt_info)
+ old_active_eps = dev->tt_info->active_eps;
+
+diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
+index f20753b99624..02a1164ca599 100644
+--- a/drivers/usb/host/xhci-trace.h
++++ b/drivers/usb/host/xhci-trace.h
+@@ -158,6 +158,37 @@ DEFINE_EVENT(xhci_log_trb, xhci_queue_trb,
+ TP_ARGS(ring, trb)
+ );
+
++DECLARE_EVENT_CLASS(xhci_log_free_virt_dev,
++ TP_PROTO(struct xhci_virt_device *vdev),
++ TP_ARGS(vdev),
++ TP_STRUCT__entry(
++ __field(void *, vdev)
++ __field(unsigned long long, out_ctx)
++ __field(unsigned long long, in_ctx)
++ __field(u8, fake_port)
++ __field(u8, real_port)
++ __field(u16, current_mel)
++
++ ),
++ TP_fast_assign(
++ __entry->vdev = vdev;
++ __entry->in_ctx = (unsigned long long) vdev->in_ctx->dma;
++ __entry->out_ctx = (unsigned long long) vdev->out_ctx->dma;
++ __entry->fake_port = (u8) vdev->fake_port;
++ __entry->real_port = (u8) vdev->real_port;
++ __entry->current_mel = (u16) vdev->current_mel;
++ ),
++ TP_printk("vdev %p ctx %llx | %llx fake_port %d real_port %d current_mel %d",
++ __entry->vdev, __entry->in_ctx, __entry->out_ctx,
++ __entry->fake_port, __entry->real_port, __entry->current_mel
++ )
++);
++
++DEFINE_EVENT(xhci_log_free_virt_dev, xhci_free_virt_device,
++ TP_PROTO(struct xhci_virt_device *vdev),
++ TP_ARGS(vdev)
++);
++
+ DECLARE_EVENT_CLASS(xhci_log_virt_dev,
+ TP_PROTO(struct xhci_virt_device *vdev),
+ TP_ARGS(vdev),
+@@ -195,11 +226,6 @@ DEFINE_EVENT(xhci_log_virt_dev, xhci_alloc_virt_device,
+ TP_ARGS(vdev)
+ );
+
+-DEFINE_EVENT(xhci_log_virt_dev, xhci_free_virt_device,
+- TP_PROTO(struct xhci_virt_device *vdev),
+- TP_ARGS(vdev)
+-);
+-
+ DEFINE_EVENT(xhci_log_virt_dev, xhci_setup_device,
+ TP_PROTO(struct xhci_virt_device *vdev),
+ TP_ARGS(vdev)
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
+index d0f00274d16c..142a83e5974c 100644
+--- a/drivers/usb/serial/cp210x.c
++++ b/drivers/usb/serial/cp210x.c
+@@ -98,6 +98,9 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */
+ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
+ { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */
++ { USB_DEVICE(0x10C4, 0x817C) }, /* CESINEL MEDCAL N Power Quality Monitor */
++ { USB_DEVICE(0x10C4, 0x817D) }, /* CESINEL MEDCAL NT Power Quality Monitor */
++ { USB_DEVICE(0x10C4, 0x817E) }, /* CESINEL MEDCAL S Power Quality Monitor */
+ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
+ { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
+ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
+@@ -115,6 +118,9 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
+ { USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
+ { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
++ { USB_DEVICE(0x10C4, 0x82EF) }, /* CESINEL FALCO 6105 AC Power Supply */
++ { USB_DEVICE(0x10C4, 0x82F1) }, /* CESINEL MEDCAL EFD Earth Fault Detector */
++ { USB_DEVICE(0x10C4, 0x82F2) }, /* CESINEL MEDCAL ST Network Analyzer */
+ { USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */
+ { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
+ { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
+@@ -127,7 +133,9 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */
+ { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
+ { USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
++ { USB_DEVICE(0x10C4, 0x851E) }, /* CESINEL MEDCAL PT Network Analyzer */
+ { USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */
++ { USB_DEVICE(0x10C4, 0x85B8) }, /* CESINEL ReCon T Energy Logger */
+ { USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
+ { USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
+ { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
+@@ -137,17 +145,23 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */
+ { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */
+ { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */
++ { USB_DEVICE(0x10C4, 0x88FB) }, /* CESINEL MEDCAL STII Network Analyzer */
++ { USB_DEVICE(0x10C4, 0x8938) }, /* CESINEL MEDCAL S II Network Analyzer */
+ { USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */
+ { USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */
+ { USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */
+ { USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
++ { USB_DEVICE(0x10C4, 0x89A4) }, /* CESINEL FTBC Flexible Thyristor Bridge Controller */
+ { USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
+ { USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
+ { USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
+ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
++ { USB_DEVICE(0x10C4, 0xEA63) }, /* Silicon Labs Windows Update (CP2101-4/CP2102N) */
+ { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
++ { USB_DEVICE(0x10C4, 0xEA7A) }, /* Silicon Labs Windows Update (CP2105) */
++ { USB_DEVICE(0x10C4, 0xEA7B) }, /* Silicon Labs Windows Update (CP2108) */
+ { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
+ { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
+ { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */
+diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
+index dd24c5c1534d..251f5d66651e 100644
+--- a/drivers/usb/typec/ucsi/ucsi.c
++++ b/drivers/usb/typec/ucsi/ucsi.c
+@@ -346,6 +346,19 @@ static void ucsi_connector_change(struct work_struct *work)
+ }
+
+ if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) {
++ typec_set_pwr_role(con->port, con->status.pwr_dir);
++
++ switch (con->status.partner_type) {
++ case UCSI_CONSTAT_PARTNER_TYPE_UFP:
++ typec_set_data_role(con->port, TYPEC_HOST);
++ break;
++ case UCSI_CONSTAT_PARTNER_TYPE_DFP:
++ typec_set_data_role(con->port, TYPEC_DEVICE);
++ break;
++ default:
++ break;
++ }
++
+ if (con->status.connected)
+ ucsi_register_partner(con);
+ else
+diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
+index cabd47612b0a..494d2a49203a 100644
+--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
++++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
+@@ -82,6 +82,11 @@ static int ucsi_acpi_probe(struct platform_device *pdev)
+ return -ENODEV;
+ }
+
++ /* This will make sure we can use ioremap_nocache() */
++ status = acpi_release_memory(ACPI_HANDLE(&pdev->dev), res, 1);
++ if (ACPI_FAILURE(status))
++ return -ENOMEM;
++
+ /*
+ * NOTE: The memory region for the data structures is used also in an
+ * operation region, which means ACPI has already reserved it. Therefore
+diff --git a/fs/afs/security.c b/fs/afs/security.c
+index faca66227ecf..859096e25f2c 100644
+--- a/fs/afs/security.c
++++ b/fs/afs/security.c
+@@ -323,18 +323,14 @@ int afs_permission(struct inode *inode, int mask)
+ mask, access, S_ISDIR(inode->i_mode) ? "dir" : "file");
+
+ if (S_ISDIR(inode->i_mode)) {
+- if (mask & MAY_EXEC) {
++ if (mask & (MAY_EXEC | MAY_READ | MAY_CHDIR)) {
+ if (!(access & AFS_ACE_LOOKUP))
+ goto permission_denied;
+- } else if (mask & MAY_READ) {
+- if (!(access & AFS_ACE_LOOKUP))
+- goto permission_denied;
+- } else if (mask & MAY_WRITE) {
++ }
++ if (mask & MAY_WRITE) {
+ if (!(access & (AFS_ACE_DELETE | /* rmdir, unlink, rename from */
+ AFS_ACE_INSERT))) /* create, mkdir, symlink, rename to */
+ goto permission_denied;
+- } else {
+- BUG();
+ }
+ } else {
+ if (!(access & AFS_ACE_LOOKUP))
+diff --git a/fs/inode.c b/fs/inode.c
+index d1e35b53bb23..e07b3e1f5970 100644
+--- a/fs/inode.c
++++ b/fs/inode.c
+@@ -177,6 +177,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
+ mapping->a_ops = &empty_aops;
+ mapping->host = inode;
+ mapping->flags = 0;
++ mapping->wb_err = 0;
+ atomic_set(&mapping->i_mmap_writable, 0);
+ mapping_set_gfp_mask(mapping, GFP_HIGHUSER_MOVABLE);
+ mapping->private_data = NULL;
+diff --git a/include/linux/acpi.h b/include/linux/acpi.h
+index 502af53ec012..13c105121a18 100644
+--- a/include/linux/acpi.h
++++ b/include/linux/acpi.h
+@@ -441,6 +441,9 @@ int acpi_check_resource_conflict(const struct resource *res);
+ int acpi_check_region(resource_size_t start, resource_size_t n,
+ const char *name);
+
++acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
++ u32 level);
++
+ int acpi_resources_are_enforced(void);
+
+ #ifdef CONFIG_HIBERNATION
+diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
+index 079c69cae2f6..59a4f50ffe8d 100644
+--- a/include/net/netfilter/nf_tables.h
++++ b/include/net/netfilter/nf_tables.h
+@@ -177,6 +177,7 @@ struct nft_data_desc {
+ int nft_data_init(const struct nft_ctx *ctx,
+ struct nft_data *data, unsigned int size,
+ struct nft_data_desc *desc, const struct nlattr *nla);
++void nft_data_hold(const struct nft_data *data, enum nft_data_types type);
+ void nft_data_release(const struct nft_data *data, enum nft_data_types type);
+ int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
+ enum nft_data_types type, unsigned int len);
+@@ -731,6 +732,10 @@ struct nft_expr_ops {
+ int (*init)(const struct nft_ctx *ctx,
+ const struct nft_expr *expr,
+ const struct nlattr * const tb[]);
++ void (*activate)(const struct nft_ctx *ctx,
++ const struct nft_expr *expr);
++ void (*deactivate)(const struct nft_ctx *ctx,
++ const struct nft_expr *expr);
+ void (*destroy)(const struct nft_ctx *ctx,
+ const struct nft_expr *expr);
+ int (*dump)(struct sk_buff *skb,
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index f287dcbe8cb2..31615d1ae44c 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -894,6 +894,33 @@ void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
+ }
+
+ #ifdef CONFIG_SMP
++
++static inline bool is_per_cpu_kthread(struct task_struct *p)
++{
++ if (!(p->flags & PF_KTHREAD))
++ return false;
++
++ if (p->nr_cpus_allowed != 1)
++ return false;
++
++ return true;
++}
++
++/*
++ * Per-CPU kthreads are allowed to run on !actie && online CPUs, see
++ * __set_cpus_allowed_ptr() and select_fallback_rq().
++ */
++static inline bool is_cpu_allowed(struct task_struct *p, int cpu)
++{
++ if (!cpumask_test_cpu(cpu, &p->cpus_allowed))
++ return false;
++
++ if (is_per_cpu_kthread(p))
++ return cpu_online(cpu);
++
++ return cpu_active(cpu);
++}
++
+ /*
+ * This is how migration works:
+ *
+@@ -951,16 +978,8 @@ struct migration_arg {
+ static struct rq *__migrate_task(struct rq *rq, struct rq_flags *rf,
+ struct task_struct *p, int dest_cpu)
+ {
+- if (p->flags & PF_KTHREAD) {
+- if (unlikely(!cpu_online(dest_cpu)))
+- return rq;
+- } else {
+- if (unlikely(!cpu_active(dest_cpu)))
+- return rq;
+- }
+-
+ /* Affinity changed (again). */
+- if (!cpumask_test_cpu(dest_cpu, &p->cpus_allowed))
++ if (!is_cpu_allowed(p, dest_cpu))
+ return rq;
+
+ update_rq_clock(rq);
+@@ -1489,10 +1508,9 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
+ for (;;) {
+ /* Any allowed, online CPU? */
+ for_each_cpu(dest_cpu, &p->cpus_allowed) {
+- if (!(p->flags & PF_KTHREAD) && !cpu_active(dest_cpu))
+- continue;
+- if (!cpu_online(dest_cpu))
++ if (!is_cpu_allowed(p, dest_cpu))
+ continue;
++
+ goto out;
+ }
+
+@@ -1555,8 +1573,7 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
+ * [ this allows ->select_task() to simply return task_cpu(p) and
+ * not worry about this generic constraint ]
+ */
+- if (unlikely(!cpumask_test_cpu(cpu, &p->cpus_allowed) ||
+- !cpu_online(cpu)))
++ if (unlikely(!is_cpu_allowed(p, cpu)))
+ cpu = select_fallback_rq(task_cpu(p), p);
+
+ return cpu;
+diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
+index 5b8cd359c4c0..e27fb6e97d18 100644
+--- a/net/bridge/netfilter/ebtables.c
++++ b/net/bridge/netfilter/ebtables.c
+@@ -1950,7 +1950,8 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
+ int off, pad = 0;
+ unsigned int size_kern, match_size = mwt->match_size;
+
+- strlcpy(name, mwt->u.name, sizeof(name));
++ if (strscpy(name, mwt->u.name, sizeof(name)) < 0)
++ return -EINVAL;
+
+ if (state->buf_kern_start)
+ dst = state->buf_kern_start + state->buf_kern_offset;
+diff --git a/net/ipv6/netfilter/ip6t_rpfilter.c b/net/ipv6/netfilter/ip6t_rpfilter.c
+index b12e61b7b16c..1c4a5de3f301 100644
+--- a/net/ipv6/netfilter/ip6t_rpfilter.c
++++ b/net/ipv6/netfilter/ip6t_rpfilter.c
+@@ -48,10 +48,8 @@ static bool rpfilter_lookup_reverse6(struct net *net, const struct sk_buff *skb,
+ }
+
+ fl6.flowi6_mark = flags & XT_RPFILTER_VALID_MARK ? skb->mark : 0;
+- if ((flags & XT_RPFILTER_LOOSE) == 0) {
++ if ((flags & XT_RPFILTER_LOOSE) == 0)
+ fl6.flowi6_oif = dev->ifindex;
+- lookup_flags |= RT6_LOOKUP_F_IFACE;
+- }
+
+ rt = (void *) ip6_route_lookup(net, &fl6, lookup_flags);
+ if (rt->dst.error)
+diff --git a/net/ipv6/netfilter/nft_fib_ipv6.c b/net/ipv6/netfilter/nft_fib_ipv6.c
+index 54b5899543ef..fd9a45cbd709 100644
+--- a/net/ipv6/netfilter/nft_fib_ipv6.c
++++ b/net/ipv6/netfilter/nft_fib_ipv6.c
+@@ -182,7 +182,6 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
+ }
+
+ *dest = 0;
+- again:
+ rt = (void *)ip6_route_lookup(nft_net(pkt), &fl6, lookup_flags);
+ if (rt->dst.error)
+ goto put_rt_err;
+@@ -191,15 +190,8 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
+ if (rt->rt6i_flags & (RTF_REJECT | RTF_ANYCAST | RTF_LOCAL))
+ goto put_rt_err;
+
+- if (oif && oif != rt->rt6i_idev->dev) {
+- /* multipath route? Try again with F_IFACE */
+- if ((lookup_flags & RT6_LOOKUP_F_IFACE) == 0) {
+- lookup_flags |= RT6_LOOKUP_F_IFACE;
+- fl6.flowi6_oif = oif->ifindex;
+- ip6_rt_put(rt);
+- goto again;
+- }
+- }
++ if (oif && oif != rt->rt6i_idev->dev)
++ goto put_rt_err;
+
+ switch (priv->result) {
+ case NFT_FIB_RESULT_OIF:
+diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
+index 17e95a0386b3..d6b012295b45 100644
+--- a/net/ipv6/xfrm6_policy.c
++++ b/net/ipv6/xfrm6_policy.c
+@@ -123,7 +123,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ struct flowi6 *fl6 = &fl->u.ip6;
+ int onlyproto = 0;
+ const struct ipv6hdr *hdr = ipv6_hdr(skb);
+- u16 offset = sizeof(*hdr);
++ u32 offset = sizeof(*hdr);
+ struct ipv6_opt_hdr *exthdr;
+ const unsigned char *nh = skb_network_header(skb);
+ u16 nhoff = IP6CB(skb)->nhoff;
+diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
+index e8f1556fa446..327ebe786eeb 100644
+--- a/net/netfilter/ipvs/ip_vs_ctl.c
++++ b/net/netfilter/ipvs/ip_vs_ctl.c
+@@ -2384,8 +2384,10 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
+ struct ipvs_sync_daemon_cfg cfg;
+
+ memset(&cfg, 0, sizeof(cfg));
+- strlcpy(cfg.mcast_ifn, dm->mcast_ifn,
+- sizeof(cfg.mcast_ifn));
++ ret = -EINVAL;
++ if (strscpy(cfg.mcast_ifn, dm->mcast_ifn,
++ sizeof(cfg.mcast_ifn)) <= 0)
++ goto out_dec;
+ cfg.syncid = dm->syncid;
+ ret = start_sync_thread(ipvs, &cfg, dm->state);
+ } else {
+@@ -2423,12 +2425,19 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
+ }
+ }
+
++ if ((cmd == IP_VS_SO_SET_ADD || cmd == IP_VS_SO_SET_EDIT) &&
++ strnlen(usvc.sched_name, IP_VS_SCHEDNAME_MAXLEN) ==
++ IP_VS_SCHEDNAME_MAXLEN) {
++ ret = -EINVAL;
++ goto out_unlock;
++ }
++
+ /* Check for valid protocol: TCP or UDP or SCTP, even for fwmark!=0 */
+ if (usvc.protocol != IPPROTO_TCP && usvc.protocol != IPPROTO_UDP &&
+ usvc.protocol != IPPROTO_SCTP) {
+- pr_err("set_ctl: invalid protocol: %d %pI4:%d %s\n",
++ pr_err("set_ctl: invalid protocol: %d %pI4:%d\n",
+ usvc.protocol, &usvc.addr.ip,
+- ntohs(usvc.port), usvc.sched_name);
++ ntohs(usvc.port));
+ ret = -EFAULT;
+ goto out_unlock;
+ }
+@@ -2850,7 +2859,7 @@ static const struct nla_policy ip_vs_cmd_policy[IPVS_CMD_ATTR_MAX + 1] = {
+ static const struct nla_policy ip_vs_daemon_policy[IPVS_DAEMON_ATTR_MAX + 1] = {
+ [IPVS_DAEMON_ATTR_STATE] = { .type = NLA_U32 },
+ [IPVS_DAEMON_ATTR_MCAST_IFN] = { .type = NLA_NUL_STRING,
+- .len = IP_VS_IFNAME_MAXLEN },
++ .len = IP_VS_IFNAME_MAXLEN - 1 },
+ [IPVS_DAEMON_ATTR_SYNC_ID] = { .type = NLA_U32 },
+ [IPVS_DAEMON_ATTR_SYNC_MAXLEN] = { .type = NLA_U16 },
+ [IPVS_DAEMON_ATTR_MCAST_GROUP] = { .type = NLA_U32 },
+@@ -2868,7 +2877,7 @@ static const struct nla_policy ip_vs_svc_policy[IPVS_SVC_ATTR_MAX + 1] = {
+ [IPVS_SVC_ATTR_PORT] = { .type = NLA_U16 },
+ [IPVS_SVC_ATTR_FWMARK] = { .type = NLA_U32 },
+ [IPVS_SVC_ATTR_SCHED_NAME] = { .type = NLA_NUL_STRING,
+- .len = IP_VS_SCHEDNAME_MAXLEN },
++ .len = IP_VS_SCHEDNAME_MAXLEN - 1 },
+ [IPVS_SVC_ATTR_PE_NAME] = { .type = NLA_NUL_STRING,
+ .len = IP_VS_PENAME_MAXLEN },
+ [IPVS_SVC_ATTR_FLAGS] = { .type = NLA_BINARY,
+diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
+index cf30c440f7a7..85b549e84104 100644
+--- a/net/netfilter/nf_tables_api.c
++++ b/net/netfilter/nf_tables_api.c
+@@ -220,6 +220,34 @@ static int nft_delchain(struct nft_ctx *ctx)
+ return err;
+ }
+
++static void nft_rule_expr_activate(const struct nft_ctx *ctx,
++ struct nft_rule *rule)
++{
++ struct nft_expr *expr;
++
++ expr = nft_expr_first(rule);
++ while (expr != nft_expr_last(rule) && expr->ops) {
++ if (expr->ops->activate)
++ expr->ops->activate(ctx, expr);
++
++ expr = nft_expr_next(expr);
++ }
++}
++
++static void nft_rule_expr_deactivate(const struct nft_ctx *ctx,
++ struct nft_rule *rule)
++{
++ struct nft_expr *expr;
++
++ expr = nft_expr_first(rule);
++ while (expr != nft_expr_last(rule) && expr->ops) {
++ if (expr->ops->deactivate)
++ expr->ops->deactivate(ctx, expr);
++
++ expr = nft_expr_next(expr);
++ }
++}
++
+ static int
+ nf_tables_delrule_deactivate(struct nft_ctx *ctx, struct nft_rule *rule)
+ {
+@@ -265,6 +293,7 @@ static int nft_delrule(struct nft_ctx *ctx, struct nft_rule *rule)
+ nft_trans_destroy(trans);
+ return err;
+ }
++ nft_rule_expr_deactivate(ctx, rule);
+
+ return 0;
+ }
+@@ -1237,8 +1266,10 @@ static void nft_chain_stats_replace(struct nft_base_chain *chain,
+ rcu_assign_pointer(chain->stats, newstats);
+ synchronize_rcu();
+ free_percpu(oldstats);
+- } else
++ } else {
+ rcu_assign_pointer(chain->stats, newstats);
++ static_branch_inc(&nft_counters_enabled);
++ }
+ }
+
+ static void nf_tables_chain_destroy(struct nft_chain *chain)
+@@ -1947,6 +1978,7 @@ static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
+ [NFTA_RULE_POSITION] = { .type = NLA_U64 },
+ [NFTA_RULE_USERDATA] = { .type = NLA_BINARY,
+ .len = NFT_USERDATA_MAXLEN },
++ [NFTA_RULE_ID] = { .type = NLA_U32 },
+ };
+
+ static int nf_tables_fill_rule_info(struct sk_buff *skb, struct net *net,
+@@ -2218,6 +2250,13 @@ static void nf_tables_rule_destroy(const struct nft_ctx *ctx,
+ kfree(rule);
+ }
+
++static void nf_tables_rule_release(const struct nft_ctx *ctx,
++ struct nft_rule *rule)
++{
++ nft_rule_expr_deactivate(ctx, rule);
++ nf_tables_rule_destroy(ctx, rule);
++}
++
+ #define NFT_RULE_MAXEXPRS 128
+
+ static struct nft_expr_info *info;
+@@ -2385,7 +2424,7 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
+ return 0;
+
+ err2:
+- nf_tables_rule_destroy(&ctx, rule);
++ nf_tables_rule_release(&ctx, rule);
+ err1:
+ for (i = 0; i < n; i++) {
+ if (info[i].ops != NULL)
+@@ -3374,6 +3413,8 @@ static const struct nla_policy nft_set_elem_policy[NFTA_SET_ELEM_MAX + 1] = {
+ [NFTA_SET_ELEM_TIMEOUT] = { .type = NLA_U64 },
+ [NFTA_SET_ELEM_USERDATA] = { .type = NLA_BINARY,
+ .len = NFT_USERDATA_MAXLEN },
++ [NFTA_SET_ELEM_EXPR] = { .type = NLA_NESTED },
++ [NFTA_SET_ELEM_OBJREF] = { .type = NLA_STRING },
+ };
+
+ static const struct nla_policy nft_set_elem_list_policy[NFTA_SET_ELEM_LIST_MAX + 1] = {
+@@ -3961,8 +4002,10 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
+ if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA) ^
+ nft_set_ext_exists(ext2, NFT_SET_EXT_DATA) ||
+ nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF) ^
+- nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF))
+- return -EBUSY;
++ nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF)) {
++ err = -EBUSY;
++ goto err5;
++ }
+ if ((nft_set_ext_exists(ext, NFT_SET_EXT_DATA) &&
+ nft_set_ext_exists(ext2, NFT_SET_EXT_DATA) &&
+ memcmp(nft_set_ext_data(ext),
+@@ -4054,7 +4097,7 @@ static int nf_tables_newsetelem(struct net *net, struct sock *nlsk,
+ * NFT_GOTO verdicts. This function must be called on active data objects
+ * from the second phase of the commit protocol.
+ */
+-static void nft_data_hold(const struct nft_data *data, enum nft_data_types type)
++void nft_data_hold(const struct nft_data *data, enum nft_data_types type)
+ {
+ if (type == NFT_DATA_VERDICT) {
+ switch (data->verdict.code) {
+@@ -4571,7 +4614,7 @@ static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb)
+ if (idx > s_idx)
+ memset(&cb->args[1], 0,
+ sizeof(cb->args) - sizeof(cb->args[0]));
+- if (filter && filter->table[0] &&
++ if (filter && filter->table &&
+ strcmp(filter->table, table->name))
+ goto cont;
+ if (filter &&
+@@ -5221,10 +5264,12 @@ static int nf_tables_abort(struct net *net, struct sk_buff *skb)
+ case NFT_MSG_NEWRULE:
+ trans->ctx.chain->use--;
+ list_del_rcu(&nft_trans_rule(trans)->list);
++ nft_rule_expr_deactivate(&trans->ctx, nft_trans_rule(trans));
+ break;
+ case NFT_MSG_DELRULE:
+ 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:
+@@ -5798,7 +5843,7 @@ int __nft_release_basechain(struct nft_ctx *ctx)
+ list_for_each_entry_safe(rule, nr, &ctx->chain->rules, list) {
+ list_del(&rule->list);
+ ctx->chain->use--;
+- nf_tables_rule_destroy(ctx, rule);
++ nf_tables_rule_release(ctx, rule);
+ }
+ list_del(&ctx->chain->list);
+ ctx->table->use--;
+@@ -5832,7 +5877,7 @@ static void __nft_release_afinfo(struct net *net, struct nft_af_info *afi)
+ list_for_each_entry_safe(rule, nr, &chain->rules, list) {
+ list_del(&rule->list);
+ chain->use--;
+- nf_tables_rule_destroy(&ctx, rule);
++ nf_tables_rule_release(&ctx, rule);
+ }
+ }
+ list_for_each_entry_safe(set, ns, &table->sets, list) {
+diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
+index dfd0bf3810d2..32b7896929f3 100644
+--- a/net/netfilter/nf_tables_core.c
++++ b/net/netfilter/nf_tables_core.c
+@@ -119,14 +119,21 @@ DEFINE_STATIC_KEY_FALSE(nft_counters_enabled);
+ static noinline void nft_update_chain_stats(const struct nft_chain *chain,
+ const struct nft_pktinfo *pkt)
+ {
++ struct nft_base_chain *base_chain;
+ struct nft_stats *stats;
+
++ base_chain = nft_base_chain(chain);
++ if (!base_chain->stats)
++ return;
++
+ local_bh_disable();
+- stats = this_cpu_ptr(rcu_dereference(nft_base_chain(chain)->stats));
+- u64_stats_update_begin(&stats->syncp);
+- stats->pkts++;
+- stats->bytes += pkt->skb->len;
+- u64_stats_update_end(&stats->syncp);
++ stats = this_cpu_ptr(rcu_dereference(base_chain->stats));
++ if (stats) {
++ u64_stats_update_begin(&stats->syncp);
++ stats->pkts++;
++ stats->bytes += pkt->skb->len;
++ u64_stats_update_end(&stats->syncp);
++ }
+ local_bh_enable();
+ }
+
+@@ -201,7 +208,8 @@ nft_do_chain(struct nft_pktinfo *pkt, void *priv)
+
+ switch (regs.verdict.code) {
+ case NFT_JUMP:
+- BUG_ON(stackptr >= NFT_JUMP_STACK_SIZE);
++ if (WARN_ON_ONCE(stackptr >= NFT_JUMP_STACK_SIZE))
++ return NF_DROP;
+ jumpstack[stackptr].chain = chain;
+ jumpstack[stackptr].rule = rule;
+ jumpstack[stackptr].rulenum = rulenum;
+diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
+index b89f4f65b2a0..3bd637eadc42 100644
+--- a/net/netfilter/nft_compat.c
++++ b/net/netfilter/nft_compat.c
+@@ -27,14 +27,31 @@ struct nft_xt {
+ struct list_head head;
+ struct nft_expr_ops ops;
+ unsigned int refcnt;
++
++ /* Unlike other expressions, ops doesn't have static storage duration.
++ * nft core assumes they do. We use kfree_rcu so that nft core can
++ * can check expr->ops->size even after nft_compat->destroy() frees
++ * the nft_xt struct that holds the ops structure.
++ */
++ struct rcu_head rcu_head;
++};
++
++/* Used for matches where *info is larger than X byte */
++#define NFT_MATCH_LARGE_THRESH 192
++
++struct nft_xt_match_priv {
++ void *info;
+ };
+
+-static void nft_xt_put(struct nft_xt *xt)
++static bool nft_xt_put(struct nft_xt *xt)
+ {
+ if (--xt->refcnt == 0) {
+ list_del(&xt->head);
+- kfree(xt);
++ kfree_rcu(xt, rcu_head);
++ return true;
+ }
++
++ return false;
+ }
+
+ static int nft_compat_chain_validate_dependency(const char *tablename,
+@@ -226,6 +243,7 @@ nft_target_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+ struct xt_target *target = expr->ops->data;
+ struct xt_tgchk_param par;
+ size_t size = XT_ALIGN(nla_len(tb[NFTA_TARGET_INFO]));
++ struct nft_xt *nft_xt;
+ u16 proto = 0;
+ bool inv = false;
+ union nft_entry e = {};
+@@ -236,25 +254,22 @@ nft_target_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+ if (ctx->nla[NFTA_RULE_COMPAT]) {
+ ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
+ if (ret < 0)
+- goto err;
++ return ret;
+ }
+
+ nft_target_set_tgchk_param(&par, ctx, target, info, &e, proto, inv);
+
+ ret = xt_check_target(&par, size, proto, inv);
+ if (ret < 0)
+- goto err;
++ return ret;
+
+ /* The standard target cannot be used */
+- if (target->target == NULL) {
+- ret = -EINVAL;
+- goto err;
+- }
++ if (!target->target)
++ return -EINVAL;
+
++ nft_xt = container_of(expr->ops, struct nft_xt, ops);
++ nft_xt->refcnt++;
+ return 0;
+-err:
+- module_put(target->me);
+- return ret;
+ }
+
+ static void
+@@ -271,8 +286,8 @@ nft_target_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
+ if (par.target->destroy != NULL)
+ par.target->destroy(&par);
+
+- nft_xt_put(container_of(expr->ops, struct nft_xt, ops));
+- module_put(target->me);
++ if (nft_xt_put(container_of(expr->ops, struct nft_xt, ops)))
++ module_put(target->me);
+ }
+
+ static int nft_target_dump(struct sk_buff *skb, const struct nft_expr *expr)
+@@ -316,11 +331,11 @@ static int nft_target_validate(const struct nft_ctx *ctx,
+ return 0;
+ }
+
+-static void nft_match_eval(const struct nft_expr *expr,
+- struct nft_regs *regs,
+- const struct nft_pktinfo *pkt)
++static void __nft_match_eval(const struct nft_expr *expr,
++ struct nft_regs *regs,
++ const struct nft_pktinfo *pkt,
++ void *info)
+ {
+- void *info = nft_expr_priv(expr);
+ struct xt_match *match = expr->ops->data;
+ struct sk_buff *skb = pkt->skb;
+ bool ret;
+@@ -344,6 +359,22 @@ static void nft_match_eval(const struct nft_expr *expr,
+ }
+ }
+
++static void nft_match_large_eval(const struct nft_expr *expr,
++ struct nft_regs *regs,
++ const struct nft_pktinfo *pkt)
++{
++ struct nft_xt_match_priv *priv = nft_expr_priv(expr);
++
++ __nft_match_eval(expr, regs, pkt, priv->info);
++}
++
++static void nft_match_eval(const struct nft_expr *expr,
++ struct nft_regs *regs,
++ const struct nft_pktinfo *pkt)
++{
++ __nft_match_eval(expr, regs, pkt, nft_expr_priv(expr));
++}
++
+ static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
+ [NFTA_MATCH_NAME] = { .type = NLA_NUL_STRING },
+ [NFTA_MATCH_REV] = { .type = NLA_U32 },
+@@ -404,13 +435,14 @@ static void match_compat_from_user(struct xt_match *m, void *in, void *out)
+ }
+
+ static int
+-nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+- const struct nlattr * const tb[])
++__nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
++ const struct nlattr * const tb[],
++ void *info)
+ {
+- void *info = nft_expr_priv(expr);
+ struct xt_match *match = expr->ops->data;
+ struct xt_mtchk_param par;
+ size_t size = XT_ALIGN(nla_len(tb[NFTA_MATCH_INFO]));
++ struct nft_xt *nft_xt;
+ u16 proto = 0;
+ bool inv = false;
+ union nft_entry e = {};
+@@ -421,26 +453,50 @@ nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+ if (ctx->nla[NFTA_RULE_COMPAT]) {
+ ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
+ if (ret < 0)
+- goto err;
++ return ret;
+ }
+
+ nft_match_set_mtchk_param(&par, ctx, match, info, &e, proto, inv);
+
+ ret = xt_check_match(&par, size, proto, inv);
+ if (ret < 0)
+- goto err;
++ return ret;
+
++ nft_xt = container_of(expr->ops, struct nft_xt, ops);
++ nft_xt->refcnt++;
+ return 0;
+-err:
+- module_put(match->me);
++}
++
++static int
++nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
++ const struct nlattr * const tb[])
++{
++ return __nft_match_init(ctx, expr, tb, nft_expr_priv(expr));
++}
++
++static int
++nft_match_large_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
++ const struct nlattr * const tb[])
++{
++ struct nft_xt_match_priv *priv = nft_expr_priv(expr);
++ struct xt_match *m = expr->ops->data;
++ int ret;
++
++ priv->info = kmalloc(XT_ALIGN(m->matchsize), GFP_KERNEL);
++ if (!priv->info)
++ return -ENOMEM;
++
++ ret = __nft_match_init(ctx, expr, tb, priv->info);
++ if (ret)
++ kfree(priv->info);
+ return ret;
+ }
+
+ static void
+-nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
++__nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr,
++ void *info)
+ {
+ struct xt_match *match = expr->ops->data;
+- void *info = nft_expr_priv(expr);
+ struct xt_mtdtor_param par;
+
+ par.net = ctx->net;
+@@ -450,13 +506,28 @@ nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
+ if (par.match->destroy != NULL)
+ par.match->destroy(&par);
+
+- nft_xt_put(container_of(expr->ops, struct nft_xt, ops));
+- module_put(match->me);
++ if (nft_xt_put(container_of(expr->ops, struct nft_xt, ops)))
++ module_put(match->me);
+ }
+
+-static int nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr)
++static void
++nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
++{
++ __nft_match_destroy(ctx, expr, nft_expr_priv(expr));
++}
++
++static void
++nft_match_large_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
++{
++ struct nft_xt_match_priv *priv = nft_expr_priv(expr);
++
++ __nft_match_destroy(ctx, expr, priv->info);
++ kfree(priv->info);
++}
++
++static int __nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr,
++ void *info)
+ {
+- void *info = nft_expr_priv(expr);
+ struct xt_match *match = expr->ops->data;
+
+ if (nla_put_string(skb, NFTA_MATCH_NAME, match->name) ||
+@@ -470,6 +541,18 @@ static int nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr)
+ return -1;
+ }
+
++static int nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr)
++{
++ return __nft_match_dump(skb, expr, nft_expr_priv(expr));
++}
++
++static int nft_match_large_dump(struct sk_buff *skb, const struct nft_expr *e)
++{
++ struct nft_xt_match_priv *priv = nft_expr_priv(e);
++
++ return __nft_match_dump(skb, e, priv->info);
++}
++
+ static int nft_match_validate(const struct nft_ctx *ctx,
+ const struct nft_expr *expr,
+ const struct nft_data **data)
+@@ -637,6 +720,7 @@ nft_match_select_ops(const struct nft_ctx *ctx,
+ {
+ struct nft_xt *nft_match;
+ struct xt_match *match;
++ unsigned int matchsize;
+ char *mt_name;
+ u32 rev, family;
+ int err;
+@@ -654,13 +738,8 @@ nft_match_select_ops(const struct nft_ctx *ctx,
+ list_for_each_entry(nft_match, &nft_match_list, head) {
+ struct xt_match *match = nft_match->ops.data;
+
+- if (nft_match_cmp(match, mt_name, rev, family)) {
+- if (!try_module_get(match->me))
+- return ERR_PTR(-ENOENT);
+-
+- nft_match->refcnt++;
++ if (nft_match_cmp(match, mt_name, rev, family))
+ return &nft_match->ops;
+- }
+ }
+
+ match = xt_request_find_match(family, mt_name, rev);
+@@ -679,9 +758,8 @@ nft_match_select_ops(const struct nft_ctx *ctx,
+ goto err;
+ }
+
+- nft_match->refcnt = 1;
++ nft_match->refcnt = 0;
+ nft_match->ops.type = &nft_match_type;
+- nft_match->ops.size = NFT_EXPR_SIZE(XT_ALIGN(match->matchsize));
+ nft_match->ops.eval = nft_match_eval;
+ nft_match->ops.init = nft_match_init;
+ nft_match->ops.destroy = nft_match_destroy;
+@@ -689,6 +767,18 @@ nft_match_select_ops(const struct nft_ctx *ctx,
+ nft_match->ops.validate = nft_match_validate;
+ nft_match->ops.data = match;
+
++ matchsize = NFT_EXPR_SIZE(XT_ALIGN(match->matchsize));
++ if (matchsize > NFT_MATCH_LARGE_THRESH) {
++ matchsize = NFT_EXPR_SIZE(sizeof(struct nft_xt_match_priv));
++
++ nft_match->ops.eval = nft_match_large_eval;
++ nft_match->ops.init = nft_match_large_init;
++ nft_match->ops.destroy = nft_match_large_destroy;
++ nft_match->ops.dump = nft_match_large_dump;
++ }
++
++ nft_match->ops.size = matchsize;
++
+ list_add(&nft_match->head, &nft_match_list);
+
+ return &nft_match->ops;
+@@ -739,13 +829,8 @@ nft_target_select_ops(const struct nft_ctx *ctx,
+ list_for_each_entry(nft_target, &nft_target_list, head) {
+ struct xt_target *target = nft_target->ops.data;
+
+- if (nft_target_cmp(target, tg_name, rev, family)) {
+- if (!try_module_get(target->me))
+- return ERR_PTR(-ENOENT);
+-
+- nft_target->refcnt++;
++ if (nft_target_cmp(target, tg_name, rev, family))
+ return &nft_target->ops;
+- }
+ }
+
+ target = xt_request_find_target(family, tg_name, rev);
+@@ -764,7 +849,7 @@ nft_target_select_ops(const struct nft_ctx *ctx,
+ goto err;
+ }
+
+- nft_target->refcnt = 1;
++ nft_target->refcnt = 0;
+ nft_target->ops.type = &nft_target_type;
+ nft_target->ops.size = NFT_EXPR_SIZE(XT_ALIGN(target->targetsize));
+ nft_target->ops.init = nft_target_init;
+@@ -825,6 +910,32 @@ static int __init nft_compat_module_init(void)
+
+ static void __exit nft_compat_module_exit(void)
+ {
++ struct nft_xt *xt, *next;
++
++ /* list should be empty here, it can be non-empty only in case there
++ * was an error that caused nft_xt expr to not be initialized fully
++ * and noone else requested the same expression later.
++ *
++ * In this case, the lists contain 0-refcount entries that still
++ * hold module reference.
++ */
++ list_for_each_entry_safe(xt, next, &nft_target_list, head) {
++ struct xt_target *target = xt->ops.data;
++
++ if (WARN_ON_ONCE(xt->refcnt))
++ continue;
++ module_put(target->me);
++ kfree(xt);
++ }
++
++ list_for_each_entry_safe(xt, next, &nft_match_list, head) {
++ struct xt_match *match = xt->ops.data;
++
++ if (WARN_ON_ONCE(xt->refcnt))
++ continue;
++ module_put(match->me);
++ kfree(xt);
++ }
+ nfnetlink_subsys_unregister(&nfnl_compat_subsys);
+ nft_unregister_expr(&nft_target_type);
+ nft_unregister_expr(&nft_match_type);
+diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
+index 4717d7796927..aa87ff8beae8 100644
+--- a/net/netfilter/nft_immediate.c
++++ b/net/netfilter/nft_immediate.c
+@@ -69,8 +69,16 @@ static int nft_immediate_init(const struct nft_ctx *ctx,
+ return err;
+ }
+
+-static void nft_immediate_destroy(const struct nft_ctx *ctx,
+- const struct nft_expr *expr)
++static void nft_immediate_activate(const struct nft_ctx *ctx,
++ const struct nft_expr *expr)
++{
++ const struct nft_immediate_expr *priv = nft_expr_priv(expr);
++
++ return nft_data_hold(&priv->data, nft_dreg_to_type(priv->dreg));
++}
++
++static void nft_immediate_deactivate(const struct nft_ctx *ctx,
++ const struct nft_expr *expr)
+ {
+ const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+@@ -108,7 +116,8 @@ static const struct nft_expr_ops nft_imm_ops = {
+ .size = NFT_EXPR_SIZE(sizeof(struct nft_immediate_expr)),
+ .eval = nft_immediate_eval,
+ .init = nft_immediate_init,
+- .destroy = nft_immediate_destroy,
++ .activate = nft_immediate_activate,
++ .deactivate = nft_immediate_deactivate,
+ .dump = nft_immediate_dump,
+ .validate = nft_immediate_validate,
+ };
+diff --git a/net/netfilter/nft_limit.c b/net/netfilter/nft_limit.c
+index a9fc298ef4c3..72f13a1144dd 100644
+--- a/net/netfilter/nft_limit.c
++++ b/net/netfilter/nft_limit.c
+@@ -51,10 +51,13 @@ static inline bool nft_limit_eval(struct nft_limit *limit, u64 cost)
+ return !limit->invert;
+ }
+
++/* Use same default as in iptables. */
++#define NFT_LIMIT_PKT_BURST_DEFAULT 5
++
+ static int nft_limit_init(struct nft_limit *limit,
+- const struct nlattr * const tb[])
++ const struct nlattr * const tb[], bool pkts)
+ {
+- u64 unit;
++ u64 unit, tokens;
+
+ if (tb[NFTA_LIMIT_RATE] == NULL ||
+ tb[NFTA_LIMIT_UNIT] == NULL)
+@@ -68,18 +71,25 @@ static int nft_limit_init(struct nft_limit *limit,
+
+ if (tb[NFTA_LIMIT_BURST])
+ limit->burst = ntohl(nla_get_be32(tb[NFTA_LIMIT_BURST]));
+- else
+- limit->burst = 0;
++
++ if (pkts && limit->burst == 0)
++ limit->burst = NFT_LIMIT_PKT_BURST_DEFAULT;
+
+ if (limit->rate + limit->burst < limit->rate)
+ return -EOVERFLOW;
+
+- /* The token bucket size limits the number of tokens can be
+- * accumulated. tokens_max specifies the bucket size.
+- * tokens_max = unit * (rate + burst) / rate.
+- */
+- limit->tokens = div_u64(limit->nsecs * (limit->rate + limit->burst),
+- limit->rate);
++ if (pkts) {
++ tokens = div_u64(limit->nsecs, limit->rate) * limit->burst;
++ } else {
++ /* The token bucket size limits the number of tokens can be
++ * accumulated. tokens_max specifies the bucket size.
++ * tokens_max = unit * (rate + burst) / rate.
++ */
++ tokens = div_u64(limit->nsecs * (limit->rate + limit->burst),
++ limit->rate);
++ }
++
++ limit->tokens = tokens;
+ limit->tokens_max = limit->tokens;
+
+ if (tb[NFTA_LIMIT_FLAGS]) {
+@@ -144,7 +154,7 @@ static int nft_limit_pkts_init(const struct nft_ctx *ctx,
+ struct nft_limit_pkts *priv = nft_expr_priv(expr);
+ int err;
+
+- err = nft_limit_init(&priv->limit, tb);
++ err = nft_limit_init(&priv->limit, tb, true);
+ if (err < 0)
+ return err;
+
+@@ -185,7 +195,7 @@ static int nft_limit_bytes_init(const struct nft_ctx *ctx,
+ {
+ struct nft_limit *priv = nft_expr_priv(expr);
+
+- return nft_limit_init(priv, tb);
++ return nft_limit_init(priv, tb, false);
+ }
+
+ static int nft_limit_bytes_dump(struct sk_buff *skb,
+@@ -246,7 +256,7 @@ static int nft_limit_obj_pkts_init(const struct nft_ctx *ctx,
+ struct nft_limit_pkts *priv = nft_obj_data(obj);
+ int err;
+
+- err = nft_limit_init(&priv->limit, tb);
++ err = nft_limit_init(&priv->limit, tb, true);
+ if (err < 0)
+ return err;
+
+@@ -289,7 +299,7 @@ static int nft_limit_obj_bytes_init(const struct nft_ctx *ctx,
+ {
+ struct nft_limit *priv = nft_obj_data(obj);
+
+- return nft_limit_init(priv, tb);
++ return nft_limit_init(priv, tb, false);
+ }
+
+ static int nft_limit_obj_bytes_dump(struct sk_buff *skb,
+diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
+index 5a60eb23a7ed..c71184d4eac1 100644
+--- a/net/netfilter/nft_meta.c
++++ b/net/netfilter/nft_meta.c
+@@ -229,7 +229,7 @@ void nft_meta_set_eval(const struct nft_expr *expr,
+ struct sk_buff *skb = pkt->skb;
+ u32 *sreg = &regs->data[meta->sreg];
+ u32 value = *sreg;
+- u8 pkt_type;
++ u8 value8;
+
+ switch (meta->key) {
+ case NFT_META_MARK:
+@@ -239,15 +239,17 @@ void nft_meta_set_eval(const struct nft_expr *expr,
+ skb->priority = value;
+ break;
+ case NFT_META_PKTTYPE:
+- pkt_type = nft_reg_load8(sreg);
++ value8 = nft_reg_load8(sreg);
+
+- if (skb->pkt_type != pkt_type &&
+- skb_pkt_type_ok(pkt_type) &&
++ if (skb->pkt_type != value8 &&
++ skb_pkt_type_ok(value8) &&
+ skb_pkt_type_ok(skb->pkt_type))
+- skb->pkt_type = pkt_type;
++ skb->pkt_type = value8;
+ break;
+ case NFT_META_NFTRACE:
+- skb->nf_trace = !!value;
++ value8 = nft_reg_load8(sreg);
++
++ skb->nf_trace = !!value8;
+ break;
+ default:
+ WARN_ON(1);
+diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
+index a59db7c45a65..81ede20f49d7 100644
+--- a/tools/perf/tests/topology.c
++++ b/tools/perf/tests/topology.c
+@@ -66,6 +66,27 @@ static int check_cpu_topology(char *path, struct cpu_map *map)
+ session = perf_session__new(&file, false, NULL);
+ TEST_ASSERT_VAL("can't get session", session);
+
++ /* On platforms with large numbers of CPUs process_cpu_topology()
++ * might issue an error while reading the perf.data file section
++ * HEADER_CPU_TOPOLOGY and the cpu_topology_map pointed to by member
++ * cpu is a NULL pointer.
++ * Example: On s390
++ * CPU 0 is on core_id 0 and physical_package_id 6
++ * CPU 1 is on core_id 1 and physical_package_id 3
++ *
++ * Core_id and physical_package_id are platform and architecture
++ * dependend and might have higher numbers than the CPU id.
++ * This actually depends on the configuration.
++ *
++ * In this case process_cpu_topology() prints error message:
++ * "socket_id number is too big. You may need to upgrade the
++ * perf tool."
++ *
++ * This is the reason why this test might be skipped.
++ */
++ if (!session->header.env.cpu)
++ return TEST_SKIP;
++
+ for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
+ if (!cpu_map__has(map, i))
+ continue;
+@@ -91,7 +112,7 @@ int test__session_topology(struct test *test __maybe_unused, int subtest __maybe
+ {
+ char path[PATH_MAX];
+ struct cpu_map *map;
+- int ret = -1;
++ int ret = TEST_FAIL;
+
+ TEST_ASSERT_VAL("can't get templ file", !get_temp(path));
+
+@@ -106,12 +127,9 @@ int test__session_topology(struct test *test __maybe_unused, int subtest __maybe
+ goto free_path;
+ }
+
+- if (check_cpu_topology(path, map))
+- goto free_map;
+- ret = 0;
+-
+-free_map:
++ ret = check_cpu_topology(path, map);
+ cpu_map__put(map);
++
+ free_path:
+ unlink(path);
+ return ret;
+diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
+index 72c107fcbc5a..c02d2cfd3aea 100644
+--- a/tools/perf/util/bpf-loader.c
++++ b/tools/perf/util/bpf-loader.c
+@@ -66,7 +66,7 @@ bpf__prepare_load_buffer(void *obj_buf, size_t obj_buf_sz, const char *name)
+ }
+
+ obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, name);
+- if (IS_ERR(obj)) {
++ if (IS_ERR_OR_NULL(obj)) {
+ pr_debug("bpf: failed to load buffer\n");
+ return ERR_PTR(-EINVAL);
+ }
+@@ -102,14 +102,14 @@ struct bpf_object *bpf__prepare_load(const char *filename, bool source)
+ pr_debug("bpf: successfull builtin compilation\n");
+ obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, filename);
+
+- if (!IS_ERR(obj) && llvm_param.dump_obj)
++ if (!IS_ERR_OR_NULL(obj) && llvm_param.dump_obj)
+ llvm__dump_obj(filename, obj_buf, obj_buf_sz);
+
+ free(obj_buf);
+ } else
+ obj = bpf_object__open(filename);
+
+- if (IS_ERR(obj)) {
++ if (IS_ERR_OR_NULL(obj)) {
+ pr_debug("bpf: failed to load %s\n", filename);
+ return obj;
+ }