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Message-Id: <1632660588170208@kroah.com>
Date: Sun, 26 Sep 2021 14:49:48 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 4.19.208
diff --git a/Makefile b/Makefile
index 77dd62aa0bbe..a4c252640983 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 207
+SUBLEVEL = 208
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/arm64/kernel/cacheinfo.c b/arch/arm64/kernel/cacheinfo.c
index 0bf0a835122f..d17414cbb89a 100644
--- a/arch/arm64/kernel/cacheinfo.c
+++ b/arch/arm64/kernel/cacheinfo.c
@@ -45,7 +45,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
this_leaf->type = type;
}
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
{
unsigned int ctype, level, leaves, fw_level;
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -80,7 +80,7 @@ static int __init_cache_level(unsigned int cpu)
return 0;
}
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
{
unsigned int level, idx;
enum cache_type type;
@@ -99,6 +99,3 @@ static int __populate_cache_leaves(unsigned int cpu)
}
return 0;
}
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
diff --git a/arch/mips/kernel/cacheinfo.c b/arch/mips/kernel/cacheinfo.c
index 3ea95568ece4..1c19a0698308 100644
--- a/arch/mips/kernel/cacheinfo.c
+++ b/arch/mips/kernel/cacheinfo.c
@@ -28,7 +28,7 @@ do { \
leaf++; \
} while (0)
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
{
struct cpuinfo_mips *c = ¤t_cpu_data;
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -80,7 +80,7 @@ static void fill_cpumask_cluster(int cpu, cpumask_t *cpu_map)
cpumask_set_cpu(cpu1, cpu_map);
}
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
{
struct cpuinfo_mips *c = ¤t_cpu_data;
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -109,6 +109,3 @@ static int __populate_cache_leaves(unsigned int cpu)
return 0;
}
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
diff --git a/arch/riscv/kernel/cacheinfo.c b/arch/riscv/kernel/cacheinfo.c
index 0bc86e5f8f3f..9d46c8575a61 100644
--- a/arch/riscv/kernel/cacheinfo.c
+++ b/arch/riscv/kernel/cacheinfo.c
@@ -31,7 +31,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
| CACHE_WRITE_ALLOCATE;
}
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
{
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
struct device_node *np = of_cpu_device_node_get(cpu);
@@ -67,7 +67,7 @@ static int __init_cache_level(unsigned int cpu)
return 0;
}
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
{
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
struct cacheinfo *this_leaf = this_cpu_ci->info_list;
@@ -99,6 +99,3 @@ static int __populate_cache_leaves(unsigned int cpu)
return 0;
}
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 8508c2c0e2a3..bdc33d0e3ffc 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -561,10 +561,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT4(0xb9080000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_ADD | BPF_K: /* dst = (u32) dst + (u32) imm */
- if (!imm)
- break;
- /* alfi %dst,imm */
- EMIT6_IMM(0xc20b0000, dst_reg, imm);
+ if (imm != 0) {
+ /* alfi %dst,imm */
+ EMIT6_IMM(0xc20b0000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_ADD | BPF_K: /* dst = dst + imm */
@@ -586,10 +586,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT4(0xb9090000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_SUB | BPF_K: /* dst = (u32) dst - (u32) imm */
- if (!imm)
- break;
- /* alfi %dst,-imm */
- EMIT6_IMM(0xc20b0000, dst_reg, -imm);
+ if (imm != 0) {
+ /* alfi %dst,-imm */
+ EMIT6_IMM(0xc20b0000, dst_reg, -imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_SUB | BPF_K: /* dst = dst - imm */
@@ -616,10 +616,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT4(0xb90c0000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_MUL | BPF_K: /* dst = (u32) dst * (u32) imm */
- if (imm == 1)
- break;
- /* msfi %r5,imm */
- EMIT6_IMM(0xc2010000, dst_reg, imm);
+ if (imm != 1) {
+ /* msfi %r5,imm */
+ EMIT6_IMM(0xc2010000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_MUL | BPF_K: /* dst = dst * imm */
@@ -670,6 +670,8 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
if (BPF_OP(insn->code) == BPF_MOD)
/* lhgi %dst,0 */
EMIT4_IMM(0xa7090000, dst_reg, 0);
+ else
+ EMIT_ZERO(dst_reg);
break;
}
/* lhi %w0,0 */
@@ -762,10 +764,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT4(0xb9820000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_XOR | BPF_K: /* dst = (u32) dst ^ (u32) imm */
- if (!imm)
- break;
- /* xilf %dst,imm */
- EMIT6_IMM(0xc0070000, dst_reg, imm);
+ if (imm != 0) {
+ /* xilf %dst,imm */
+ EMIT6_IMM(0xc0070000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_XOR | BPF_K: /* dst = dst ^ imm */
@@ -786,10 +788,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT6_DISP_LH(0xeb000000, 0x000d, dst_reg, dst_reg, src_reg, 0);
break;
case BPF_ALU | BPF_LSH | BPF_K: /* dst = (u32) dst << (u32) imm */
- if (imm == 0)
- break;
- /* sll %dst,imm(%r0) */
- EMIT4_DISP(0x89000000, dst_reg, REG_0, imm);
+ if (imm != 0) {
+ /* sll %dst,imm(%r0) */
+ EMIT4_DISP(0x89000000, dst_reg, REG_0, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_LSH | BPF_K: /* dst = dst << imm */
@@ -811,10 +813,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
EMIT6_DISP_LH(0xeb000000, 0x000c, dst_reg, dst_reg, src_reg, 0);
break;
case BPF_ALU | BPF_RSH | BPF_K: /* dst = (u32) dst >> (u32) imm */
- if (imm == 0)
- break;
- /* srl %dst,imm(%r0) */
- EMIT4_DISP(0x88000000, dst_reg, REG_0, imm);
+ if (imm != 0) {
+ /* srl %dst,imm(%r0) */
+ EMIT4_DISP(0x88000000, dst_reg, REG_0, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_RSH | BPF_K: /* dst = dst >> imm */
diff --git a/arch/x86/kernel/cpu/cacheinfo.c b/arch/x86/kernel/cpu/cacheinfo.c
index 9d863e8f9b3f..4a393023f5ac 100644
--- a/arch/x86/kernel/cpu/cacheinfo.c
+++ b/arch/x86/kernel/cpu/cacheinfo.c
@@ -956,7 +956,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
this_leaf->priv = base->nb;
}
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
{
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -985,7 +985,7 @@ static void get_cache_id(int cpu, struct _cpuid4_info_regs *id4_regs)
id4_regs->id = c->apicid >> index_msb;
}
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
{
unsigned int idx, ret;
struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -1004,6 +1004,3 @@ static int __populate_cache_leaves(unsigned int cpu)
return 0;
}
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index caee658609d7..853b1770df36 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -2437,6 +2437,7 @@ int blk_throtl_init(struct request_queue *q)
void blk_throtl_exit(struct request_queue *q)
{
BUG_ON(!q->td);
+ del_timer_sync(&q->td->service_queue.pending_timer);
throtl_shutdown_wq(q);
blkcg_deactivate_policy(q, &blkcg_policy_throtl);
free_percpu(q->td->latency_buckets[READ]);
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 07e1a286ee43..78b4f0f172ae 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -853,7 +853,7 @@ static void talitos_unregister_rng(struct device *dev)
* HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP
*/
#define TALITOS_CRA_PRIORITY_AEAD_HSNA (TALITOS_CRA_PRIORITY - 1)
-#ifdef CONFIG_CRYPTO_DEV_TALITOS_SEC2
+#ifdef CONFIG_CRYPTO_DEV_TALITOS2
#define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
#else
#define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA256_BLOCK_SIZE)
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 52dd4bd7c209..e5f31af65aab 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -266,7 +266,7 @@ config INTEL_IDMA64
config INTEL_IOATDMA
tristate "Intel I/OAT DMA support"
- depends on PCI && X86_64
+ depends on PCI && X86_64 && !UML
select DMA_ENGINE
select DMA_ENGINE_RAID
select DCA
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 8d99c84361cb..22ec10c71d81 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -72,10 +72,14 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
si = (const struct acpi_csrt_shared_info *)&grp[1];
- /* Match device by MMIO and IRQ */
+ /* Match device by MMIO */
if (si->mmio_base_low != lower_32_bits(mem) ||
- si->mmio_base_high != upper_32_bits(mem) ||
- si->gsi_interrupt != irq)
+ si->mmio_base_high != upper_32_bits(mem))
+ return 0;
+
+ /* Match device by Linux vIRQ */
+ ret = acpi_register_gsi(NULL, si->gsi_interrupt, si->interrupt_mode, si->interrupt_polarity);
+ if (ret != irq)
return 0;
dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index 9e8ce56a83d8..0fadf6a08494 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -1016,6 +1016,7 @@ static const struct of_device_id sprd_dma_match[] = {
{ .compatible = "sprd,sc9860-dma", },
{},
};
+MODULE_DEVICE_TABLE(of, sprd_dma_match);
static int __maybe_unused sprd_dma_runtime_suspend(struct device *dev)
{
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index d891ec05bc48..3f38df6b51f2 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2674,7 +2674,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
xdev->ext_addr = false;
/* Set the dma mask bits */
- dma_set_mask(xdev->dev, DMA_BIT_MASK(addr_width));
+ dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));
/* Initialize the DMA engine */
xdev->common.dev = &pdev->dev;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c
index b0ece71aefde..ce774579c89d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c
@@ -57,7 +57,7 @@ nvkm_control_mthd_pstate_info(struct nvkm_control *ctrl, void *data, u32 size)
args->v0.count = 0;
args->v0.ustate_ac = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
args->v0.ustate_dc = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
- args->v0.pwrsrc = -ENOSYS;
+ args->v0.pwrsrc = -ENODEV;
args->v0.pstate = NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN;
}
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 29df6ab29e95..2b60535a9c7b 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -160,15 +160,6 @@ struct dino_device
(struct dino_device *)__pdata; })
-/* Check if PCI device is behind a Card-mode Dino. */
-static int pci_dev_is_behind_card_dino(struct pci_dev *dev)
-{
- struct dino_device *dino_dev;
-
- dino_dev = DINO_DEV(parisc_walk_tree(dev->bus->bridge));
- return is_card_dino(&dino_dev->hba.dev->id);
-}
-
/*
* Dino Configuration Space Accessor Functions
*/
@@ -452,6 +443,15 @@ static void quirk_cirrus_cardbus(struct pci_dev *dev)
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6832, quirk_cirrus_cardbus );
#ifdef CONFIG_TULIP
+/* Check if PCI device is behind a Card-mode Dino. */
+static int pci_dev_is_behind_card_dino(struct pci_dev *dev)
+{
+ struct dino_device *dino_dev;
+
+ dino_dev = DINO_DEV(parisc_walk_tree(dev->bus->bridge));
+ return is_card_dino(&dino_dev->hba.dev->id);
+}
+
static void pci_fixup_tulip(struct pci_dev *dev)
{
if (!pci_dev_is_behind_card_dino(dev))
diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c
index 3b0a097ce2ab..6111e8848b07 100644
--- a/drivers/pwm/pwm-img.c
+++ b/drivers/pwm/pwm-img.c
@@ -332,23 +332,7 @@ static int img_pwm_probe(struct platform_device *pdev)
static int img_pwm_remove(struct platform_device *pdev)
{
struct img_pwm_chip *pwm_chip = platform_get_drvdata(pdev);
- u32 val;
- unsigned int i;
- int ret;
-
- ret = pm_runtime_get_sync(&pdev->dev);
- if (ret < 0) {
- pm_runtime_put(&pdev->dev);
- return ret;
- }
-
- for (i = 0; i < pwm_chip->chip.npwm; i++) {
- val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);
- val &= ~BIT(i);
- img_pwm_writel(pwm_chip, PWM_CTRL_CFG, val);
- }
- pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
img_pwm_runtime_suspend(&pdev->dev);
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index a9b3cff96aac..ed8e9406b4af 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -124,17 +124,17 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
lpc32xx->chip.npwm = 1;
lpc32xx->chip.base = -1;
+ /* If PWM is disabled, configure the output to the default value */
+ val = readl(lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
+ val &= ~PWM_PIN_LEVEL;
+ writel(val, lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
+
ret = pwmchip_add(&lpc32xx->chip);
if (ret < 0) {
dev_err(&pdev->dev, "failed to add PWM chip, error %d\n", ret);
return ret;
}
- /* When PWM is disable, configure the output to the default value */
- val = readl(lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
- val &= ~PWM_PIN_LEVEL;
- writel(val, lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
-
platform_set_drvdata(pdev, lpc32xx);
return 0;
diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 48bcc853d57a..cf34fb00c054 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -392,20 +392,6 @@ static int rockchip_pwm_remove(struct platform_device *pdev)
{
struct rockchip_pwm_chip *pc = platform_get_drvdata(pdev);
- /*
- * Disable the PWM clk before unpreparing it if the PWM device is still
- * running. This should only happen when the last PWM user left it
- * enabled, or when nobody requested a PWM that was previously enabled
- * by the bootloader.
- *
- * FIXME: Maybe the core should disable all PWM devices in
- * pwmchip_remove(). In this case we'd only have to call
- * clk_unprepare() after pwmchip_remove().
- *
- */
- if (pwm_is_enabled(pc->chip.pwms))
- clk_disable(pc->clk);
-
clk_unprepare(pc->pclk);
clk_unprepare(pc->clk);
diff --git a/drivers/pwm/pwm-stm32-lp.c b/drivers/pwm/pwm-stm32-lp.c
index 28e1f6413476..e92a14007422 100644
--- a/drivers/pwm/pwm-stm32-lp.c
+++ b/drivers/pwm/pwm-stm32-lp.c
@@ -224,8 +224,6 @@ static int stm32_pwm_lp_remove(struct platform_device *pdev)
{
struct stm32_pwm_lp *priv = platform_get_drvdata(pdev);
- pwm_disable(&priv->chip.pwms[0]);
-
return pwmchip_remove(&priv->chip);
}
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index fc9399d9c082..3376be6863cd 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1084,6 +1084,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk");
if (IS_ERR(data->sclk)) {
dev_err(&pdev->dev, "Failed to get sclk\n");
+ ret = PTR_ERR(data->sclk);
goto err_clk;
} else {
ret = clk_prepare_enable(data->sclk);
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 918781c51f0b..6443ba1e60eb 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1774,6 +1774,8 @@ static int __mark_caps_flushing(struct inode *inode,
* try to invalidate mapping pages without blocking.
*/
static int try_nonblocking_invalidate(struct inode *inode)
+ __releases(ci->i_ceph_lock)
+ __acquires(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
u32 invalidating_gen = ci->i_rdcache_gen;
diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c
index c6c8a33c81d5..28a2db3b1787 100644
--- a/fs/nilfs2/sysfs.c
+++ b/fs/nilfs2/sysfs.c
@@ -64,11 +64,9 @@ static const struct sysfs_ops nilfs_##name##_attr_ops = { \
#define NILFS_DEV_INT_GROUP_TYPE(name, parent_name) \
static void nilfs_##name##_attr_release(struct kobject *kobj) \
{ \
- struct nilfs_sysfs_##parent_name##_subgroups *subgroups; \
- struct the_nilfs *nilfs = container_of(kobj->parent, \
- struct the_nilfs, \
- ns_##parent_name##_kobj); \
- subgroups = nilfs->ns_##parent_name##_subgroups; \
+ struct nilfs_sysfs_##parent_name##_subgroups *subgroups = container_of(kobj, \
+ struct nilfs_sysfs_##parent_name##_subgroups, \
+ sg_##name##_kobj); \
complete(&subgroups->sg_##name##_kobj_unregister); \
} \
static struct kobj_type nilfs_##name##_ktype = { \
@@ -94,12 +92,12 @@ static int nilfs_sysfs_create_##name##_group(struct the_nilfs *nilfs) \
err = kobject_init_and_add(kobj, &nilfs_##name##_ktype, parent, \
#name); \
if (err) \
- return err; \
- return 0; \
+ kobject_put(kobj); \
+ return err; \
} \
static void nilfs_sysfs_delete_##name##_group(struct the_nilfs *nilfs) \
{ \
- kobject_del(&nilfs->ns_##parent_name##_subgroups->sg_##name##_kobj); \
+ kobject_put(&nilfs->ns_##parent_name##_subgroups->sg_##name##_kobj); \
}
/************************************************************************
@@ -210,14 +208,14 @@ int nilfs_sysfs_create_snapshot_group(struct nilfs_root *root)
}
if (err)
- return err;
+ kobject_put(&root->snapshot_kobj);
- return 0;
+ return err;
}
void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *root)
{
- kobject_del(&root->snapshot_kobj);
+ kobject_put(&root->snapshot_kobj);
}
/************************************************************************
@@ -1000,7 +998,7 @@ int nilfs_sysfs_create_device_group(struct super_block *sb)
err = kobject_init_and_add(&nilfs->ns_dev_kobj, &nilfs_dev_ktype, NULL,
"%s", sb->s_id);
if (err)
- goto free_dev_subgroups;
+ goto cleanup_dev_kobject;
err = nilfs_sysfs_create_mounted_snapshots_group(nilfs);
if (err)
@@ -1037,9 +1035,7 @@ int nilfs_sysfs_create_device_group(struct super_block *sb)
nilfs_sysfs_delete_mounted_snapshots_group(nilfs);
cleanup_dev_kobject:
- kobject_del(&nilfs->ns_dev_kobj);
-
-free_dev_subgroups:
+ kobject_put(&nilfs->ns_dev_kobj);
kfree(nilfs->ns_dev_subgroups);
failed_create_device_group:
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 484785cdf96e..931870768556 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -797,14 +797,13 @@ nilfs_find_or_create_root(struct the_nilfs *nilfs, __u64 cno)
void nilfs_put_root(struct nilfs_root *root)
{
- if (refcount_dec_and_test(&root->count)) {
- struct the_nilfs *nilfs = root->nilfs;
+ struct the_nilfs *nilfs = root->nilfs;
- nilfs_sysfs_delete_snapshot_group(root);
-
- spin_lock(&nilfs->ns_cptree_lock);
+ if (refcount_dec_and_lock(&root->count, &nilfs->ns_cptree_lock)) {
rb_erase(&root->rb_node, &nilfs->ns_cptree);
spin_unlock(&nilfs->ns_cptree_lock);
+
+ nilfs_sysfs_delete_snapshot_group(root);
iput(root->ifile);
kfree(root);
diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 70e19bc6cc9f..66654e6f9605 100644
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h
@@ -76,24 +76,6 @@ struct cpu_cacheinfo {
bool cpu_map_populated;
};
-/*
- * Helpers to make sure "func" is executed on the cpu whose cache
- * attributes are being detected
- */
-#define DEFINE_SMP_CALL_CACHE_FUNCTION(func) \
-static inline void _##func(void *ret) \
-{ \
- int cpu = smp_processor_id(); \
- *(int *)ret = __##func(cpu); \
-} \
- \
-int func(unsigned int cpu) \
-{ \
- int ret; \
- smp_call_function_single(cpu, _##func, &ret, true); \
- return ret; \
-}
-
struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
int init_cache_level(unsigned int cpu);
int populate_cache_leaves(unsigned int cpu);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 8dd4ebb58e97..827f70ce0b49 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -248,7 +248,8 @@ struct kvm_vcpu {
struct preempt_notifier preempt_notifier;
#endif
int cpu;
- int vcpu_id;
+ int vcpu_id; /* id given by userspace at creation */
+ int vcpu_idx; /* index in kvm->vcpus array */
int srcu_idx;
int mode;
u64 requests;
@@ -551,13 +552,7 @@ static inline struct kvm_vcpu *kvm_get_vcpu_by_id(struct kvm *kvm, int id)
static inline int kvm_vcpu_get_idx(struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *tmp;
- int idx;
-
- kvm_for_each_vcpu(idx, tmp, vcpu->kvm)
- if (tmp == vcpu)
- return idx;
- BUG();
+ return vcpu->vcpu_idx;
}
#define kvm_for_each_memslot(memslot, slots) \
diff --git a/kernel/profile.c b/kernel/profile.c
index 9aa2a4445b0d..efa58f63dc1b 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -40,7 +40,8 @@ struct profile_hit {
#define NR_PROFILE_GRP (NR_PROFILE_HIT/PROFILE_GRPSZ)
static atomic_t *prof_buffer;
-static unsigned long prof_len, prof_shift;
+static unsigned long prof_len;
+static unsigned short int prof_shift;
int prof_on __read_mostly;
EXPORT_SYMBOL_GPL(prof_on);
@@ -66,8 +67,8 @@ int profile_setup(char *str)
if (str[strlen(sleepstr)] == ',')
str += strlen(sleepstr) + 1;
if (get_option(&str, &par))
- prof_shift = par;
- pr_info("kernel sleep profiling enabled (shift: %ld)\n",
+ prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
+ pr_info("kernel sleep profiling enabled (shift: %u)\n",
prof_shift);
#else
pr_warn("kernel sleep profiling requires CONFIG_SCHEDSTATS\n");
@@ -77,21 +78,21 @@ int profile_setup(char *str)
if (str[strlen(schedstr)] == ',')
str += strlen(schedstr) + 1;
if (get_option(&str, &par))
- prof_shift = par;
- pr_info("kernel schedule profiling enabled (shift: %ld)\n",
+ prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
+ pr_info("kernel schedule profiling enabled (shift: %u)\n",
prof_shift);
} else if (!strncmp(str, kvmstr, strlen(kvmstr))) {
prof_on = KVM_PROFILING;
if (str[strlen(kvmstr)] == ',')
str += strlen(kvmstr) + 1;
if (get_option(&str, &par))
- prof_shift = par;
- pr_info("kernel KVM profiling enabled (shift: %ld)\n",
+ prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
+ pr_info("kernel KVM profiling enabled (shift: %u)\n",
prof_shift);
} else if (get_option(&str, &par)) {
- prof_shift = par;
+ prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
prof_on = CPU_PROFILING;
- pr_info("kernel profiling enabled (shift: %ld)\n",
+ pr_info("kernel profiling enabled (shift: %u)\n",
prof_shift);
}
return 1;
@@ -467,7 +468,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
unsigned long p = *ppos;
ssize_t read;
char *pnt;
- unsigned int sample_step = 1 << prof_shift;
+ unsigned long sample_step = 1UL << prof_shift;
profile_flip_buffers();
if (p >= (prof_len+1)*sizeof(unsigned int))
diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index 0b2c2ad69629..72770a551c24 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -613,7 +613,7 @@ static void rcu_exp_wait_wake(struct rcu_state *rsp, unsigned long s)
spin_unlock(&rnp->exp_lock);
}
smp_mb(); /* All above changes before wakeup. */
- wake_up_all(&rnp->exp_wq[rcu_seq_ctr(rsp->expedited_sequence) & 0x3]);
+ wake_up_all(&rnp->exp_wq[rcu_seq_ctr(s) & 0x3]);
}
trace_rcu_exp_grace_period(rsp->name, s, TPS("endwake"));
mutex_unlock(&rsp->exp_wake_mutex);
diff --git a/kernel/sys.c b/kernel/sys.c
index baf60a3aa34b..d0663f8e6fb8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1931,13 +1931,6 @@ static int validate_prctl_map(struct prctl_mm_map *prctl_map)
error = -EINVAL;
- /*
- * @brk should be after @end_data in traditional maps.
- */
- if (prctl_map->start_brk <= prctl_map->end_data ||
- prctl_map->brk <= prctl_map->end_data)
- goto out;
-
/*
* Neither we should allow to override limits if they set.
*/
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 61eff45653f5..36dfea29d5fa 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -836,8 +836,9 @@ static int create_trace_kprobe(int argc, char **argv)
pr_info("Failed to parse either an address or a symbol.\n");
return ret;
}
+ /* Defer the ENOENT case until register kprobe */
if (offset && is_return &&
- !kprobe_on_func_entry(NULL, symbol, offset)) {
+ kprobe_on_func_entry(NULL, symbol, offset) == -EINVAL) {
pr_info("Given offset is not valid for return probe.\n");
return -EINVAL;
}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 46a910acce3f..6970759f296c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -853,7 +853,6 @@ config HARDLOCKUP_DETECTOR
depends on HAVE_HARDLOCKUP_DETECTOR_PERF || HAVE_HARDLOCKUP_DETECTOR_ARCH
select LOCKUP_DETECTOR
select HARDLOCKUP_DETECTOR_PERF if HAVE_HARDLOCKUP_DETECTOR_PERF
- select HARDLOCKUP_DETECTOR_ARCH if HAVE_HARDLOCKUP_DETECTOR_ARCH
help
Say Y here to enable the kernel to act as a watchdog to detect
hard lockups.
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 849336211c79..f7cd8e018bde 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -620,7 +620,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
chan->vc_wq = kmalloc(sizeof(wait_queue_head_t), GFP_KERNEL);
if (!chan->vc_wq) {
err = -ENOMEM;
- goto out_free_tag;
+ goto out_remove_file;
}
init_waitqueue_head(chan->vc_wq);
chan->ring_bufs_avail = 1;
@@ -638,6 +638,8 @@ static int p9_virtio_probe(struct virtio_device *vdev)
return 0;
+out_remove_file:
+ sysfs_remove_file(&vdev->dev.kobj, &dev_attr_mount_tag.attr);
out_free_tag:
kfree(tag);
out_free_vq:
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 23c4f14bec25..8b7c07fc66d4 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -1125,6 +1125,9 @@ static struct sctp_association *__sctp_rcv_asconf_lookup(
union sctp_addr_param *param;
union sctp_addr paddr;
+ if (ntohs(ch->length) < sizeof(*asconf) + sizeof(struct sctp_paramhdr))
+ return NULL;
+
/* Skip over the ADDIP header and find the Address parameter */
param = (union sctp_addr_param *)(asconf + 1);
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index a1ca070e36b0..0789109c2d09 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2172,9 +2172,16 @@ static enum sctp_ierror sctp_verify_param(struct net *net,
break;
case SCTP_PARAM_SET_PRIMARY:
- if (net->sctp.addip_enable)
- break;
- goto fallthrough;
+ if (!net->sctp.addip_enable)
+ goto fallthrough;
+
+ if (ntohs(param.p->length) < sizeof(struct sctp_addip_param) +
+ sizeof(struct sctp_paramhdr)) {
+ sctp_process_inv_paramlength(asoc, param.p,
+ chunk, err_chunk);
+ retval = SCTP_IERROR_ABORT;
+ }
+ break;
case SCTP_PARAM_HOST_NAME_ADDRESS:
/* Tell the peer, we won't support this param. */
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 1ec1e928cc09..900c865b9e5f 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -1960,9 +1960,6 @@ int __aafs_ns_mkdir(struct aa_ns *ns, struct dentry *parent, const char *name,
return error;
}
-
-#define list_entry_is_head(pos, head, member) (&pos->member == (head))
-
/**
* __next_ns - find the next namespace to list
* @root: root namespace to stop search at (NOT NULL)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a3d82113ae1c..86ef740763b5 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2751,7 +2751,8 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
goto unlock_vcpu_destroy;
}
- BUG_ON(kvm->vcpus[atomic_read(&kvm->online_vcpus)]);
+ vcpu->vcpu_idx = atomic_read(&kvm->online_vcpus);
+ BUG_ON(kvm->vcpus[vcpu->vcpu_idx]);
/* Now it's all set up, let userspace reach it */
kvm_get_kvm(kvm);
@@ -2761,7 +2762,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
goto unlock_vcpu_destroy;
}
- kvm->vcpus[atomic_read(&kvm->online_vcpus)] = vcpu;
+ kvm->vcpus[vcpu->vcpu_idx] = vcpu;
/*
* Pairs with smp_rmb() in kvm_get_vcpu. Write kvm->vcpus
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