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Message-Id: <1616001531153245@kroah.com>
Date: Wed, 17 Mar 2021 18:18:52 +0100
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 4.19.181
diff --git a/Makefile b/Makefile
index 48cdfe5ce992..29930269b486 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 180
+SUBLEVEL = 181
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index 31733a95bbd0..4cd6e19ee90f 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -52,7 +52,7 @@ void __patch_exception(int exc, unsigned long addr);
#endif
#define OP_RT_RA_MASK 0xffff0000UL
-#define LIS_R2 0x3c020000UL
+#define LIS_R2 0x3c400000UL
#define ADDIS_R2_R12 0x3c4c0000UL
#define ADDI_R2_R2 0x38420000UL
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index a47de82fb8e2..bda87cbf106d 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -71,6 +71,9 @@ struct machdep_calls {
int (*pcibios_root_bridge_prepare)(struct pci_host_bridge
*bridge);
+ /* finds all the pci_controllers present at boot */
+ void (*discover_phbs)(void);
+
/* To setup PHBs when using automatic OF platform driver for PCI */
int (*pci_setup_phb)(struct pci_controller *host);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 88e4f69a09e5..74628aca2bf1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1671,3 +1671,13 @@ static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MOTOROLA, PCI_ANY_ID, fixup_hide_host_resource_fsl);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, fixup_hide_host_resource_fsl);
+
+
+static int __init discover_phbs(void)
+{
+ if (ppc_md.discover_phbs)
+ ppc_md.discover_phbs();
+
+ return 0;
+}
+core_initcall(discover_phbs);
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 1b2d84cb373b..2379c4bf3979 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -433,8 +433,11 @@ void system_reset_exception(struct pt_regs *regs)
die("Unrecoverable nested System Reset", regs, SIGABRT);
#endif
/* Must die if the interrupt is not recoverable */
- if (!(regs->msr & MSR_RI))
+ if (!(regs->msr & MSR_RI)) {
+ /* For the reason explained in die_mce, nmi_exit before die */
+ nmi_exit();
die("Unrecoverable System Reset", regs, SIGABRT);
+ }
if (!nested)
nmi_exit();
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 70de13822828..091bdeaf02a3 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -2046,7 +2046,17 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
left += period;
if (left <= 0)
left = period;
- record = siar_valid(regs);
+
+ /*
+ * If address is not requested in the sample via
+ * PERF_SAMPLE_IP, just record that sample irrespective
+ * of SIAR valid check.
+ */
+ if (event->attr.sample_type & PERF_SAMPLE_IP)
+ record = siar_valid(regs);
+ else
+ record = 1;
+
event->hw.last_period = event->hw.sample_period;
}
if (left < 0x80000000LL)
@@ -2064,9 +2074,10 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
* MMCR2. Check attr.exclude_kernel and address to drop the sample in
* these cases.
*/
- if (event->attr.exclude_kernel && record)
- if (is_kernel_addr(mfspr(SPRN_SIAR)))
- record = 0;
+ if (event->attr.exclude_kernel &&
+ (event->attr.sample_type & PERF_SAMPLE_IP) &&
+ is_kernel_addr(mfspr(SPRN_SIAR)))
+ record = 0;
/*
* Finally record data if requested.
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index c47bd581a08a..bce678c7179c 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -751,7 +751,7 @@ static int smp_add_core(struct sclp_core_entry *core, cpumask_t *avail,
static int __smp_rescan_cpus(struct sclp_core_info *info, bool early)
{
struct sclp_core_entry *core;
- cpumask_t avail;
+ static cpumask_t avail;
bool configured;
u16 core_id;
int nr, i;
diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h
index f94532f25db1..274217e7ed70 100644
--- a/arch/sparc/include/asm/mman.h
+++ b/arch/sparc/include/asm/mman.h
@@ -57,35 +57,39 @@ static inline int sparc_validate_prot(unsigned long prot, unsigned long addr)
{
if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_ADI))
return 0;
- if (prot & PROT_ADI) {
- if (!adi_capable())
- return 0;
+ return 1;
+}
- if (addr) {
- struct vm_area_struct *vma;
+#define arch_validate_flags(vm_flags) arch_validate_flags(vm_flags)
+/* arch_validate_flags() - Ensure combination of flags is valid for a
+ * VMA.
+ */
+static inline bool arch_validate_flags(unsigned long vm_flags)
+{
+ /* If ADI is being enabled on this VMA, check for ADI
+ * capability on the platform and ensure VMA is suitable
+ * for ADI
+ */
+ if (vm_flags & VM_SPARC_ADI) {
+ if (!adi_capable())
+ return false;
- vma = find_vma(current->mm, addr);
- if (vma) {
- /* ADI can not be enabled on PFN
- * mapped pages
- */
- if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP))
- return 0;
+ /* ADI can not be enabled on PFN mapped pages */
+ if (vm_flags & (VM_PFNMAP | VM_MIXEDMAP))
+ return false;
- /* Mergeable pages can become unmergeable
- * if ADI is enabled on them even if they
- * have identical data on them. This can be
- * because ADI enabled pages with identical
- * data may still not have identical ADI
- * tags on them. Disallow ADI on mergeable
- * pages.
- */
- if (vma->vm_flags & VM_MERGEABLE)
- return 0;
- }
- }
+ /* Mergeable pages can become unmergeable
+ * if ADI is enabled on them even if they
+ * have identical data on them. This can be
+ * because ADI enabled pages with identical
+ * data may still not have identical ADI
+ * tags on them. Disallow ADI on mergeable
+ * pages.
+ */
+ if (vm_flags & VM_MERGEABLE)
+ return false;
}
- return 1;
+ return true;
}
#endif /* CONFIG_SPARC64 */
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 92634d4e440c..89a9244f2cf0 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -199,6 +199,9 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
size = memblock_phys_mem_size() - memblock_reserved_size();
*pages_avail = (size >> PAGE_SHIFT) - high_pages;
+ /* Only allow low memory to be allocated via memblock allocation */
+ memblock_set_current_limit(max_low_pfn << PAGE_SHIFT);
+
return max_pfn;
}
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index 8fa9ca3c3bd7..4f17c1c94949 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -346,8 +346,8 @@ static bool deref_stack_regs(struct unwind_state *state, unsigned long addr,
if (!stack_access_ok(state, addr, sizeof(struct pt_regs)))
return false;
- *ip = regs->ip;
- *sp = regs->sp;
+ *ip = READ_ONCE_NOCHECK(regs->ip);
+ *sp = READ_ONCE_NOCHECK(regs->sp);
return true;
}
@@ -359,8 +359,8 @@ static bool deref_stack_iret_regs(struct unwind_state *state, unsigned long addr
if (!stack_access_ok(state, addr, IRET_FRAME_SIZE))
return false;
- *ip = regs->ip;
- *sp = regs->sp;
+ *ip = READ_ONCE_NOCHECK(regs->ip);
+ *sp = READ_ONCE_NOCHECK(regs->sp);
return true;
}
@@ -381,12 +381,12 @@ static bool get_reg(struct unwind_state *state, unsigned int reg_off,
return false;
if (state->full_regs) {
- *val = ((unsigned long *)state->regs)[reg];
+ *val = READ_ONCE_NOCHECK(((unsigned long *)state->regs)[reg]);
return true;
}
if (state->prev_regs) {
- *val = ((unsigned long *)state->prev_regs)[reg];
+ *val = READ_ONCE_NOCHECK(((unsigned long *)state->prev_regs)[reg]);
return true;
}
diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index d8ef8b16fb2e..08acfe11752b 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -883,6 +883,7 @@ static int rsxx_pci_probe(struct pci_dev *dev,
card->event_wq = create_singlethread_workqueue(DRIVER_NAME"_event");
if (!card->event_wq) {
dev_err(CARD_TO_DEV(card), "Failed card event setup.\n");
+ st = -ENOMEM;
goto failed_event_handler;
}
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index f8672238d444..ab8847c7dd96 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -96,6 +96,8 @@ static int compat_drm_version(struct file *file, unsigned int cmd,
if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
return -EFAULT;
+ memset(&v, 0, sizeof(v));
+
v = (struct drm_version) {
.name_len = v32.name_len,
.name = compat_ptr(v32.name),
@@ -134,6 +136,9 @@ static int compat_drm_getunique(struct file *file, unsigned int cmd,
if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
return -EFAULT;
+
+ memset(&uq, 0, sizeof(uq));
+
uq = (struct drm_unique){
.unique_len = uq32.unique_len,
.unique = compat_ptr(uq32.unique),
@@ -260,6 +265,8 @@ static int compat_drm_getclient(struct file *file, unsigned int cmd,
if (copy_from_user(&c32, argp, sizeof(c32)))
return -EFAULT;
+ memset(&client, 0, sizeof(client));
+
client.idx = c32.idx;
err = drm_ioctl_kernel(file, drm_getclient, &client, DRM_UNLOCKED);
@@ -842,6 +849,8 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
if (copy_from_user(&req32, argp, sizeof(req32)))
return -EFAULT;
+ memset(&req, 0, sizeof(req));
+
req.request.type = req32.request.type;
req.request.sequence = req32.request.sequence;
req.request.signal = req32.request.signal;
@@ -879,6 +888,8 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
struct drm_mode_fb_cmd2 req64;
int err;
+ memset(&req64, 0, sizeof(req64));
+
if (copy_from_user(&req64, argp,
offsetof(drm_mode_fb_cmd232_t, modifier)))
return -EFAULT;
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 588b3b0c8315..25b06771f238 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -384,6 +384,16 @@ static int meson_probe_remote(struct platform_device *pdev,
return count;
}
+static void meson_drv_shutdown(struct platform_device *pdev)
+{
+ struct meson_drm *priv = dev_get_drvdata(&pdev->dev);
+ struct drm_device *drm = priv->drm;
+
+ DRM_DEBUG_DRIVER("\n");
+ drm_kms_helper_poll_fini(drm);
+ drm_atomic_helper_shutdown(drm);
+}
+
static int meson_drv_probe(struct platform_device *pdev)
{
struct component_match *match = NULL;
@@ -428,6 +438,7 @@ MODULE_DEVICE_TABLE(of, dt_match);
static struct platform_driver meson_drm_platform_driver = {
.probe = meson_drv_probe,
+ .shutdown = meson_drv_shutdown,
.driver = {
.name = "meson-drm",
.of_match_table = dt_match,
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index c2f411c290bf..c187e557678e 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -187,6 +187,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
#define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm */
#define LM90_HAVE_TEMP3 (1 << 6) /* 3rd temperature sensor */
#define LM90_HAVE_BROKEN_ALERT (1 << 7) /* Broken alert */
+#define LM90_PAUSE_FOR_CONFIG (1 << 8) /* Pause conversion for config */
/* LM90 status */
#define LM90_STATUS_LTHRM (1 << 0) /* local THERM limit tripped */
@@ -380,6 +381,7 @@ static const struct lm90_params lm90_params[] = {
.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
},
[max6657] = {
+ .flags = LM90_PAUSE_FOR_CONFIG,
.alert_alarms = 0x7c,
.max_convrate = 8,
.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
@@ -580,6 +582,38 @@ static inline int lm90_select_remote_channel(struct i2c_client *client,
return 0;
}
+static int lm90_write_convrate(struct i2c_client *client,
+ struct lm90_data *data, int val)
+{
+ int err;
+ int config_orig, config_stop;
+
+ /* Save config and pause conversion */
+ if (data->flags & LM90_PAUSE_FOR_CONFIG) {
+ config_orig = lm90_read_reg(client, LM90_REG_R_CONFIG1);
+ if (config_orig < 0)
+ return config_orig;
+ config_stop = config_orig | 0x40;
+ if (config_orig != config_stop) {
+ err = i2c_smbus_write_byte_data(client,
+ LM90_REG_W_CONFIG1,
+ config_stop);
+ if (err < 0)
+ return err;
+ }
+ }
+
+ /* Set conv rate */
+ err = i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE, val);
+
+ /* Revert change to config */
+ if (data->flags & LM90_PAUSE_FOR_CONFIG && config_orig != config_stop)
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ config_orig);
+
+ return err;
+}
+
/*
* Set conversion rate.
* client->update_lock must be held when calling this function (unless we are
@@ -600,7 +634,7 @@ static int lm90_set_convrate(struct i2c_client *client, struct lm90_data *data,
if (interval >= update_interval * 3 / 4)
break;
- err = i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE, i);
+ err = lm90_write_convrate(client, data, i);
data->update_interval = DIV_ROUND_CLOSEST(update_interval, 64);
return err;
}
@@ -1606,8 +1640,7 @@ static void lm90_restore_conf(void *_data)
struct i2c_client *client = data->client;
/* Restore initial configuration */
- i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE,
- data->convrate_orig);
+ lm90_write_convrate(client, data, data->convrate_orig);
i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
data->config_orig);
}
@@ -1624,12 +1657,13 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
/*
* Start the conversions.
*/
- lm90_set_convrate(client, data, 500); /* 500ms; 2Hz conversion rate */
config = lm90_read_reg(client, LM90_REG_R_CONFIG1);
if (config < 0)
return config;
data->config_orig = config;
+ lm90_set_convrate(client, data, 500); /* 500ms; 2Hz conversion rate */
+
/* Check Temperature Range Select */
if (data->kind == adt7461 || data->kind == tmp451) {
if (config & 0x04)
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index f9029800d399..3ea2ceec676c 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -117,6 +117,7 @@ enum rcar_i2c_type {
};
struct rcar_i2c_priv {
+ u32 flags;
void __iomem *io;
struct i2c_adapter adap;
struct i2c_msg *msg;
@@ -127,7 +128,6 @@ struct rcar_i2c_priv {
int pos;
u32 icccr;
- u32 flags;
u8 recovery_icmcr; /* protected by adapter lock */
enum rcar_i2c_type devtype;
struct i2c_client *slave;
diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c
index 8d86f618ec77..8824c4ce67f1 100644
--- a/drivers/media/platform/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/vsp1/vsp1_drm.c
@@ -243,7 +243,7 @@ static int vsp1_du_pipeline_setup_brx(struct vsp1_device *vsp1,
brx = &vsp1->bru->entity;
else if (pipe->brx && !drm_pipe->force_brx_release)
brx = pipe->brx;
- else if (!vsp1->bru->entity.pipe)
+ else if (vsp1_feature(vsp1, VSP1_HAS_BRU) && !vsp1->bru->entity.pipe)
brx = &vsp1->bru->entity;
else
brx = &vsp1->brs->entity;
@@ -460,9 +460,9 @@ static int vsp1_du_pipeline_setup_inputs(struct vsp1_device *vsp1,
* make sure it is present in the pipeline's list of entities if it
* wasn't already.
*/
- if (!use_uif) {
+ if (drm_pipe->uif && !use_uif) {
drm_pipe->uif->pipe = NULL;
- } else if (!drm_pipe->uif->pipe) {
+ } else if (drm_pipe->uif && !drm_pipe->uif->pipe) {
drm_pipe->uif->pipe = pipe;
list_add_tail(&drm_pipe->uif->list_pipe, &pipe->entities);
}
diff --git a/drivers/media/usb/usbtv/usbtv-audio.c b/drivers/media/usb/usbtv/usbtv-audio.c
index 4ce38246ed64..95657a7029c9 100644
--- a/drivers/media/usb/usbtv/usbtv-audio.c
+++ b/drivers/media/usb/usbtv/usbtv-audio.c
@@ -399,7 +399,7 @@ void usbtv_audio_free(struct usbtv *usbtv)
cancel_work_sync(&usbtv->snd_trigger);
if (usbtv->snd && usbtv->udev) {
- snd_card_free(usbtv->snd);
+ snd_card_free_when_closed(usbtv->snd);
usbtv->snd = NULL;
}
}
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index fc92c6c1c9a4..941f39ca4eb7 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -376,11 +376,6 @@ void mmc_remove_card(struct mmc_card *card)
mmc_remove_card_debugfs(card);
#endif
- if (host->cqe_enabled) {
- host->cqe_ops->cqe_disable(host);
- host->cqe_enabled = false;
- }
-
if (mmc_card_present(card)) {
if (mmc_host_is_spi(card->host)) {
pr_info("%s: SPI card removed\n",
@@ -393,6 +388,10 @@ void mmc_remove_card(struct mmc_card *card)
of_node_put(card->dev.of_node);
}
+ if (host->cqe_enabled) {
+ host->cqe_ops->cqe_disable(host);
+ host->cqe_enabled = false;
+ }
+
put_device(&card->dev);
}
-
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 4b18034537f5..1b5139a906b8 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -426,10 +426,6 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
/* EXT_CSD value is in units of 10ms, but we store in ms */
card->ext_csd.part_time = 10 * ext_csd[EXT_CSD_PART_SWITCH_TIME];
- /* Some eMMC set the value too low so set a minimum */
- if (card->ext_csd.part_time &&
- card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME)
- card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME;
/* Sleep / awake timeout in 100ns units */
if (sa_shift > 0 && sa_shift <= 0x17)
@@ -619,6 +615,17 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
card->ext_csd.data_sector_size = 512;
}
+ /*
+ * GENERIC_CMD6_TIME is to be used "unless a specific timeout is defined
+ * when accessing a specific field", so use it here if there is no
+ * PARTITION_SWITCH_TIME.
+ */
+ if (!card->ext_csd.part_time)
+ card->ext_csd.part_time = card->ext_csd.generic_cmd6_time;
+ /* Some eMMC set the value too low so set a minimum */
+ if (card->ext_csd.part_time < MMC_MIN_PART_SWITCH_TIME)
+ card->ext_csd.part_time = MMC_MIN_PART_SWITCH_TIME;
+
/* eMMC v5 or later */
if (card->ext_csd.rev >= 7) {
memcpy(card->ext_csd.fwrev, &ext_csd[EXT_CSD_FIRMWARE_VERSION],
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 9ecf86ba4bb0..967e47770af6 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -928,13 +928,13 @@ static void msdc_track_cmd_data(struct msdc_host *host,
static void msdc_request_done(struct msdc_host *host, struct mmc_request *mrq)
{
unsigned long flags;
- bool ret;
- ret = cancel_delayed_work(&host->req_timeout);
- if (!ret) {
- /* delay work already running */
- return;
- }
+ /*
+ * No need check the return value of cancel_delayed_work, as only ONE
+ * path will go here!
+ */
+ cancel_delayed_work(&host->req_timeout);
+
spin_lock_irqsave(&host->lock, flags);
host->mrq = NULL;
spin_unlock_irqrestore(&host->lock, flags);
@@ -952,7 +952,7 @@ static bool msdc_cmd_done(struct msdc_host *host, int events,
bool done = false;
bool sbc_error;
unsigned long flags;
- u32 *rsp = cmd->resp;
+ u32 *rsp;
if (mrq->sbc && cmd == mrq->cmd &&
(events & (MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR
@@ -973,6 +973,7 @@ static bool msdc_cmd_done(struct msdc_host *host, int events,
if (done)
return true;
+ rsp = cmd->resp;
sdr_clr_bits(host->base + MSDC_INTEN, cmd_ints_mask);
@@ -1154,7 +1155,7 @@ static void msdc_data_xfer_next(struct msdc_host *host,
static bool msdc_data_xfer_done(struct msdc_host *host, u32 events,
struct mmc_request *mrq, struct mmc_data *data)
{
- struct mmc_command *stop = data->stop;
+ struct mmc_command *stop;
unsigned long flags;
bool done;
unsigned int check_data = events &
@@ -1170,6 +1171,7 @@ static bool msdc_data_xfer_done(struct msdc_host *host, u32 events,
if (done)
return true;
+ stop = data->stop;
if (check_data || (stop && stop->error)) {
dev_dbg(host->dev, "DMA status: 0x%8X\n",
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index add1e70195ea..7125687faf76 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -659,7 +659,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
ret = mmc_of_parse(mmc);
if (ret)
- goto out_clk_disable;
+ goto out_free_dma;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 92fe345e48ab..cb6bc2058542 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -426,7 +426,7 @@ static int flexcan_chip_freeze(struct flexcan_priv *priv)
u32 reg;
reg = priv->read(®s->mcr);
- reg |= FLEXCAN_MCR_HALT;
+ reg |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT;
priv->write(reg, ®s->mcr);
while (timeout-- && !(priv->read(®s->mcr) & FLEXCAN_MCR_FRZ_ACK))
@@ -1252,10 +1252,14 @@ static int register_flexcandev(struct net_device *dev)
if (err)
goto out_chip_disable;
- /* set freeze, halt and activate FIFO, restrict register access */
+ /* set freeze, halt */
+ err = flexcan_chip_freeze(priv);
+ if (err)
+ goto out_chip_disable;
+
+ /* activate FIFO, restrict register access */
reg = priv->read(®s->mcr);
- reg |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT |
- FLEXCAN_MCR_FEN | FLEXCAN_MCR_SUPV;
+ reg |= FLEXCAN_MCR_FEN | FLEXCAN_MCR_SUPV;
priv->write(reg, ®s->mcr);
/* Currently we only support newer versions of this core
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index dd63b993ce7b..d83ad06bf199 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -1902,13 +1902,16 @@ static int alx_resume(struct device *dev)
if (!netif_running(alx->dev))
return 0;
- netif_device_attach(alx->dev);
rtnl_lock();
err = __alx_open(alx, true);
rtnl_unlock();
+ if (err)
+ return err;
- return err;
+ netif_device_attach(alx->dev);
+
+ return 0;
}
static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 50222b7b81f3..a339ea2fd496 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -143,6 +143,8 @@ struct board_info {
u32 wake_state;
int ip_summed;
+
+ struct regulator *power_supply;
};
/* debug code */
@@ -1460,7 +1462,7 @@ dm9000_probe(struct platform_device *pdev)
if (ret) {
dev_err(dev, "failed to request reset gpio %d: %d\n",
reset_gpios, ret);
- return -ENODEV;
+ goto out_regulator_disable;
}
/* According to manual PWRST# Low Period Min 1ms */
@@ -1472,8 +1474,10 @@ dm9000_probe(struct platform_device *pdev)
if (!pdata) {
pdata = dm9000_parse_dt(&pdev->dev);
- if (IS_ERR(pdata))
- return PTR_ERR(pdata);
+ if (IS_ERR(pdata)) {
+ ret = PTR_ERR(pdata);
+ goto out_regulator_disable;
+ }
}
/* Init network device */
@@ -1490,6 +1494,8 @@ dm9000_probe(struct platform_device *pdev)
db->dev = &pdev->dev;
db->ndev = ndev;
+ if (!IS_ERR(power))
+ db->power_supply = power;
spin_lock_init(&db->lock);
mutex_init(&db->addr_lock);
@@ -1716,6 +1722,10 @@ dm9000_probe(struct platform_device *pdev)
dm9000_release_board(pdev, db);
free_netdev(ndev);
+out_regulator_disable:
+ if (!IS_ERR(power))
+ regulator_disable(power);
+
return ret;
}
@@ -1775,10 +1785,13 @@ static int
dm9000_drv_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
+ struct board_info *dm = to_dm9000_board(ndev);
unregister_netdev(ndev);
- dm9000_release_board(pdev, netdev_priv(ndev));
+ dm9000_release_board(pdev, dm);
free_netdev(ndev); /* free device structure */
+ if (dm->power_supply)
+ regulator_disable(dm->power_supply);
dev_dbg(&pdev->dev, "released and freed device\n");
return 0;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index fe9da568ee19..1591f81d8ae3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -13956,6 +13956,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err) {
dev_info(&pdev->dev,
"setup of misc vector failed: %d\n", err);
+ i40e_cloud_filter_exit(pf);
+ i40e_fdir_teardown(pf);
goto err_vsis;
}
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index e639a365ac2d..7a99eb1572fd 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -47,7 +47,7 @@
#define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
#define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff)
-static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
+int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
{
int i, t;
int err = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 47eee3e083ec..f3a0617733d8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -3667,6 +3667,8 @@ int mlx4_en_reset_config(struct net_device *dev,
en_err(priv, "Failed starting port\n");
}
+ if (!err)
+ err = mlx4_en_moderation_update(priv);
out:
mutex_unlock(&mdev->state_lock);
kfree(tmp);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 1a57ea9a7ea5..3d5597d5b10d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -798,6 +798,7 @@ void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev);
#define DEV_FEATURE_CHANGED(dev, new_features, feature) \
((dev->features & feature) ^ (new_features & feature))
+int mlx4_en_moderation_update(struct mlx4_en_priv *priv);
int mlx4_en_reset_config(struct net_device *dev,
struct hwtstamp_config ts_config,
netdev_features_t new_features);
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 9ac7b09badca..24638cb157ca 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -610,6 +610,8 @@ static struct sh_eth_cpu_data r7s72100_data = {
EESR_TDE,
.fdr_value = 0x0000070f,
+ .trscer_err_mask = DESC_I_RINT8 | DESC_I_RINT5,
+
.no_psr = 1,
.apr = 1,
.mpr = 1,
@@ -825,6 +827,8 @@ static struct sh_eth_cpu_data r7s9210_data = {
.fdr_value = 0x0000070f,
+ .trscer_err_mask = DESC_I_RINT8 | DESC_I_RINT5,
+
.apr = 1,
.mpr = 1,
.tpauser = 1,
@@ -1126,6 +1130,9 @@ static struct sh_eth_cpu_data sh771x_data = {
EESIPR_CEEFIP | EESIPR_CELFIP |
EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
EESIPR_PREIP | EESIPR_CERFIP,
+
+ .trscer_err_mask = DESC_I_RINT8,
+
.tsu = 1,
.dual_port = 1,
};
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
index edb6053bd980..8c3780d1105f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
@@ -119,6 +119,23 @@ static void dwmac4_dma_init_channel(void __iomem *ioaddr,
ioaddr + DMA_CHAN_INTR_ENA(chan));
}
+static void dwmac410_dma_init_channel(void __iomem *ioaddr,
+ struct stmmac_dma_cfg *dma_cfg, u32 chan)
+{
+ u32 value;
+
+ /* common channel control register config */
+ value = readl(ioaddr + DMA_CHAN_CONTROL(chan));
+ if (dma_cfg->pblx8)
+ value = value | DMA_BUS_MODE_PBL;
+
+ writel(value, ioaddr + DMA_CHAN_CONTROL(chan));
+
+ /* Mask interrupts by writing to CSR7 */
+ writel(DMA_CHAN_INTR_DEFAULT_MASK_4_10,
+ ioaddr + DMA_CHAN_INTR_ENA(chan));
+}
+
static void dwmac4_dma_init(void __iomem *ioaddr,
struct stmmac_dma_cfg *dma_cfg, int atds)
{
@@ -461,7 +478,7 @@ const struct stmmac_dma_ops dwmac4_dma_ops = {
const struct stmmac_dma_ops dwmac410_dma_ops = {
.reset = dwmac4_dma_reset,
.init = dwmac4_dma_init,
- .init_chan = dwmac4_dma_init_channel,
+ .init_chan = dwmac410_dma_init_channel,
.init_rx_chan = dwmac4_dma_init_rx_chan,
.init_tx_chan = dwmac4_dma_init_tx_chan,
.axi = dwmac4_dma_axi,
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index 49f5687879df..32461909264a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
@@ -63,10 +63,6 @@ void dwmac4_dma_stop_tx(void __iomem *ioaddr, u32 chan)
value &= ~DMA_CONTROL_ST;
writel(value, ioaddr + DMA_CHAN_TX_CONTROL(chan));
-
- value = readl(ioaddr + GMAC_CONFIG);
- value &= ~GMAC_CONFIG_TE;
- writel(value, ioaddr + GMAC_CONFIG);
}
void dwmac4_dma_start_rx(void __iomem *ioaddr, u32 chan)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 76d4b8e6ac3e..a1443d7197e8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4566,6 +4566,8 @@ static void stmmac_reset_queues_param(struct stmmac_priv *priv)
tx_q->cur_tx = 0;
tx_q->dirty_tx = 0;
tx_q->mss = 0;
+
+ netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, queue));
}
}
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index cc454b8c032c..dd4bf4265a5e 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -335,7 +335,10 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
phydev->autoneg = autoneg;
- phydev->speed = speed;
+ if (autoneg == AUTONEG_DISABLE) {
+ phydev->speed = speed;
+ phydev->duplex = duplex;
+ }
phydev->advertising = advertising;
@@ -344,8 +347,6 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
else
phydev->advertising &= ~ADVERTISED_Autoneg;
- phydev->duplex = duplex;
-
phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
/* Restart the PHY */
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 9a359c41cfa6..d08e1de26030 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -378,13 +378,6 @@ static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, c
goto err;
}
- /* we don't want to modify a running netdev */
- if (netif_running(dev->net)) {
- netdev_err(dev->net, "Cannot change a running device\n");
- ret = -EBUSY;
- goto err;
- }
-
ret = qmimux_register_device(dev->net, mux_id);
if (!ret) {
info->flags |= QMI_WWAN_FLAG_MUX;
@@ -414,13 +407,6 @@ static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, c
if (!rtnl_trylock())
return restart_syscall();
- /* we don't want to modify a running netdev */
- if (netif_running(dev->net)) {
- netdev_err(dev->net, "Cannot change a running device\n");
- ret = -EBUSY;
- goto err;
- }
-
del_dev = qmimux_find_dev(dev, mux_id);
if (!del_dev) {
netdev_err(dev->net, "mux_id not present\n");
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index e5fc1b95cea6..fad5fc8b9edb 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -286,7 +286,6 @@ static int lapbeth_open(struct net_device *dev)
return -ENODEV;
}
- netif_start_queue(dev);
return 0;
}
@@ -294,8 +293,6 @@ static int lapbeth_close(struct net_device *dev)
{
int err;
- netif_stop_queue(dev);
-
if ((err = lapb_unregister(dev)) != LAPB_OK)
pr_err("lapb_unregister error: %d\n", err);
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 0fca44e91a71..de3befc2edd1 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -179,7 +179,8 @@ struct ath_frame_info {
s8 txq;
u8 keyix;
u8 rtscts_rate;
- u8 retries : 7;
+ u8 retries : 6;
+ u8 dyn_smps : 1;
u8 baw_tracked : 1;
u8 tx_power;
enum ath9k_key_type keytype:2;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 4b7a7fc2a0fe..29f71457e26b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1324,6 +1324,11 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
is_40, is_sgi, is_sp);
if (rix < 8 && (tx_info->flags & IEEE80211_TX_CTL_STBC))
info->rates[i].RateFlags |= ATH9K_RATESERIES_STBC;
+ if (rix >= 8 && fi->dyn_smps) {
+ info->rates[i].RateFlags |=
+ ATH9K_RATESERIES_RTS_CTS;
+ info->flags |= ATH9K_TXDESC_CTSENA;
+ }
info->txpower[i] = ath_get_rate_txpower(sc, bf, rix,
is_40, false);
@@ -2206,6 +2211,7 @@ static void setup_frame_info(struct ieee80211_hw *hw,
fi->keyix = an->ps_key;
else
fi->keyix = ATH9K_TXKEYIX_INVALID;
+ fi->dyn_smps = sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC;
fi->keytype = keytype;
fi->framelen = framelen;
fi->tx_power = txpower;
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 8ce6a167dd2c..57866c1e9c98 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -395,13 +395,13 @@ mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data,
{
struct sk_buff *skb = q->rx_head;
struct skb_shared_info *shinfo = skb_shinfo(skb);
+ int nr_frags = shinfo->nr_frags;
- if (shinfo->nr_frags < ARRAY_SIZE(shinfo->frags)) {
+ if (nr_frags < ARRAY_SIZE(shinfo->frags)) {
struct page *page = virt_to_head_page(data);
int offset = data - page_address(page) + q->buf_offset;
- skb_add_rx_frag(skb, shinfo->nr_frags, page, offset, len,
- q->buf_size);
+ skb_add_rx_frag(skb, nr_frags, page, offset, len, q->buf_size);
} else {
skb_free_frag(data);
}
@@ -410,7 +410,10 @@ mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data,
return;
q->rx_head = NULL;
- dev->drv->rx_skb(dev, q - dev->q_rx, skb);
+ if (nr_frags < ARRAY_SIZE(shinfo->frags))
+ dev->drv->rx_skb(dev, q - dev->q_rx, skb);
+ else
+ dev_kfree_skb(skb);
}
static int
diff --git a/drivers/pci/controller/pci-xgene-msi.c b/drivers/pci/controller/pci-xgene-msi.c
index f4c02da84e59..0bfa5065b440 100644
--- a/drivers/pci/controller/pci-xgene-msi.c
+++ b/drivers/pci/controller/pci-xgene-msi.c
@@ -384,13 +384,9 @@ static int xgene_msi_hwirq_alloc(unsigned int cpu)
if (!msi_group->gic_irq)
continue;
- irq_set_chained_handler(msi_group->gic_irq,
- xgene_msi_isr);
- err = irq_set_handler_data(msi_group->gic_irq, msi_group);
- if (err) {
- pr_err("failed to register GIC IRQ handler\n");
- return -EINVAL;
- }
+ irq_set_chained_handler_and_data(msi_group->gic_irq,
+ xgene_msi_isr, msi_group);
+
/*
* Statically allocate MSI GIC IRQs to each CPU core.
* With 8-core X-Gene v1, 2 MSI GIC IRQs are allocated
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index ca06d8bc01e7..066e9e00de11 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1089,14 +1089,14 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
err = of_pci_get_devfn(child);
if (err < 0) {
dev_err(dev, "failed to parse devfn: %d\n", err);
- return err;
+ goto error_put_node;
}
slot = PCI_SLOT(err);
err = mtk_pcie_parse_port(pcie, child, slot);
if (err)
- return err;
+ goto error_put_node;
}
err = mtk_pcie_subsys_powerup(pcie);
@@ -1112,6 +1112,9 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
mtk_pcie_subsys_powerdown(pcie);
return 0;
+error_put_node:
+ of_node_put(child);
+ return err;
}
static int mtk_pcie_request_resources(struct mtk_pcie *pcie)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 83fda1987d1f..9ebf32de8575 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3817,6 +3817,10 @@ int pci_register_io_range(struct fwnode_handle *fwnode, phys_addr_t addr,
ret = logic_pio_register_range(range);
if (ret)
kfree(range);
+
+ /* Ignore duplicates due to deferred probing */
+ if (ret == -EEXIST)
+ ret = 0;
#endif
return ret;
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 157bbb13c26c..7beda20cf122 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2940,7 +2940,8 @@ static blk_status_t do_dasd_request(struct blk_mq_hw_ctx *hctx,
basedev = block->base;
spin_lock_irq(&dq->lock);
- if (basedev->state < DASD_STATE_READY) {
+ if (basedev->state < DASD_STATE_READY ||
+ test_bit(DASD_FLAG_OFFLINE, &basedev->flags)) {
DBF_DEV_EVENT(DBF_ERR, basedev,
"device not ready for request %p", req);
rc = BLK_STS_IOERR;
@@ -3426,8 +3427,6 @@ void dasd_generic_remove(struct ccw_device *cdev)
struct dasd_device *device;
struct dasd_block *block;
- cdev->handler = NULL;
-
device = dasd_device_from_cdev(cdev);
if (IS_ERR(device)) {
dasd_remove_sysfs_files(cdev);
@@ -3446,6 +3445,7 @@ void dasd_generic_remove(struct ccw_device *cdev)
* no quite down yet.
*/
dasd_set_target_state(device, DASD_STATE_NEW);
+ cdev->handler = NULL;
/* dasd_delete_device destroys the device reference. */
block = device->block;
dasd_delete_device(device);
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index dc5ff47de3fe..6873ab5fe57a 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -341,7 +341,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (ret)
return ret;
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_GET_REGION_INFO:
{
@@ -362,7 +362,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (ret)
return ret;
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_GET_IRQ_INFO:
{
@@ -383,7 +383,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev,
if (info.count == -1)
return -EINVAL;
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0;
}
case VFIO_DEVICE_SET_IRQS:
{
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 2e40fd78e7b3..81471c304991 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1569,14 +1569,9 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
}
rc = iscsi_prep_scsi_cmd_pdu(conn->task);
if (rc) {
- if (rc == -ENOMEM || rc == -EACCES) {
- spin_lock_bh(&conn->taskqueuelock);
- list_add_tail(&conn->task->running,
- &conn->cmdqueue);
- conn->task = NULL;
- spin_unlock_bh(&conn->taskqueuelock);
- goto done;
- } else
+ if (rc == -ENOMEM || rc == -EACCES)
+ fail_scsi_task(conn->task, DID_IMM_RETRY);
+ else
fail_scsi_task(conn->task, DID_ABORT);
spin_lock_bh(&conn->taskqueuelock);
continue;
diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c
index e035c9f757a1..2176d3289eff 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1032.c
@@ -260,6 +260,7 @@ static irqreturn_t apci1032_interrupt(int irq, void *d)
struct apci1032_private *devpriv = dev->private;
struct comedi_subdevice *s = dev->read_subdev;
unsigned int ctrl;
+ unsigned short val;
/* check interrupt is from this device */
if ((inl(devpriv->amcc_iobase + AMCC_OP_REG_INTCSR) &
@@ -275,7 +276,8 @@ static irqreturn_t apci1032_interrupt(int irq, void *d)
outl(ctrl & ~APCI1032_CTRL_INT_ENA, dev->iobase + APCI1032_CTRL_REG);
s->state = inl(dev->iobase + APCI1032_STATUS_REG) & 0xffff;
- comedi_buf_write_samples(s, &s->state, 1);
+ val = s->state;
+ comedi_buf_write_samples(s, &val, 1);
comedi_handle_events(dev, s);
/* enable the interrupt */
diff --git a/drivers/staging/comedi/drivers/addi_apci_1500.c b/drivers/staging/comedi/drivers/addi_apci_1500.c
index 816dd25b9d0e..8c3eff7cf465 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1500.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1500.c
@@ -208,7 +208,7 @@ static irqreturn_t apci1500_interrupt(int irq, void *d)
struct comedi_device *dev = d;
struct apci1500_private *devpriv = dev->private;
struct comedi_subdevice *s = dev->read_subdev;
- unsigned int status = 0;
+ unsigned short status = 0;
unsigned int val;
val = inl(devpriv->amcc + AMCC_OP_REG_INTCSR);
@@ -238,14 +238,14 @@ static irqreturn_t apci1500_interrupt(int irq, void *d)
*
* Mask Meaning
* ---------- ------------------------------------------
- * 0x00000001 Event 1 has occurred
- * 0x00000010 Event 2 has occurred
- * 0x00000100 Counter/timer 1 has run down (not implemented)
- * 0x00001000 Counter/timer 2 has run down (not implemented)
- * 0x00010000 Counter 3 has run down (not implemented)
- * 0x00100000 Watchdog has run down (not implemented)
- * 0x01000000 Voltage error
- * 0x10000000 Short-circuit error
+ * 0b00000001 Event 1 has occurred
+ * 0b00000010 Event 2 has occurred
+ * 0b00000100 Counter/timer 1 has run down (not implemented)
+ * 0b00001000 Counter/timer 2 has run down (not implemented)
+ * 0b00010000 Counter 3 has run down (not implemented)
+ * 0b00100000 Watchdog has run down (not implemented)
+ * 0b01000000 Voltage error
+ * 0b10000000 Short-circuit error
*/
comedi_buf_write_samples(s, &status, 1);
comedi_handle_events(dev, s);
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index c1c3b18793d5..8cdee455e8a5 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -300,11 +300,11 @@ static int pci1710_ai_eoc(struct comedi_device *dev,
static int pci1710_ai_read_sample(struct comedi_device *dev,
struct comedi_subdevice *s,
unsigned int cur_chan,
- unsigned int *val)
+ unsigned short *val)
{
const struct boardtype *board = dev->board_ptr;
struct pci1710_private *devpriv = dev->private;
- unsigned int sample;
+ unsigned short sample;
unsigned int chan;
sample = inw(dev->iobase + PCI171X_AD_DATA_REG);
@@ -345,7 +345,7 @@ static int pci1710_ai_insn_read(struct comedi_device *dev,
pci1710_ai_setup_chanlist(dev, s, &insn->chanspec, 1, 1);
for (i = 0; i < insn->n; i++) {
- unsigned int val;
+ unsigned short val;
/* start conversion */
outw(0, dev->iobase + PCI171X_SOFTTRG_REG);
@@ -395,7 +395,7 @@ static void pci1710_handle_every_sample(struct comedi_device *dev,
{
struct comedi_cmd *cmd = &s->async->cmd;
unsigned int status;
- unsigned int val;
+ unsigned short val;
int ret;
status = inw(dev->iobase + PCI171X_STATUS_REG);
@@ -455,7 +455,7 @@ static void pci1710_handle_fifo(struct comedi_device *dev,
}
for (i = 0; i < devpriv->max_samples; i++) {
- unsigned int val;
+ unsigned short val;
int ret;
ret = pci1710_ai_read_sample(dev, s, s->async->cur_chan, &val);
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index f99211ec46de..0034005bdf8f 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -186,7 +186,7 @@ static irqreturn_t das6402_interrupt(int irq, void *d)
if (status & DAS6402_STATUS_FFULL) {
async->events |= COMEDI_CB_OVERFLOW;
} else if (status & DAS6402_STATUS_FFNE) {
- unsigned int val;
+ unsigned short val;
val = das6402_ai_read_sample(dev, s);
comedi_buf_write_samples(s, &val, 1);
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 8cf09ef3012f..4bd8fd5218c8 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -427,7 +427,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)
struct comedi_cmd *cmd;
unsigned long irq_flags;
unsigned int status;
- unsigned int val;
+ unsigned short val;
bool fifo_empty;
bool fifo_overflow;
int i;
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 75693cdde313..c180d18ce517 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -404,7 +404,7 @@ static irqreturn_t dmm32at_isr(int irq, void *d)
{
struct comedi_device *dev = d;
unsigned char intstat;
- unsigned int val;
+ unsigned short val;
int i;
if (!dev->attached) {
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index ee53571a8969..ead8000b5929 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -924,7 +924,7 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
struct comedi_subdevice *s = dev->read_subdev;
int i;
int c = 0;
- unsigned int lval;
+ unsigned short lval;
if (!dev->attached)
return IRQ_NONE;
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index a5937206bf1c..e9abae418062 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -184,7 +184,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
struct comedi_device *dev = d;
struct comedi_subdevice *s = dev->read_subdev;
struct comedi_cmd *cmd = &s->async->cmd;
- unsigned int data;
+ unsigned short data;
if (!dev->attached) {
dev_err(dev->class_dev, "spurious interrupt\n");
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 0af5315d4357..fc8afffc1815 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -423,7 +423,7 @@ static int pcl818_ai_eoc(struct comedi_device *dev,
static bool pcl818_ai_write_sample(struct comedi_device *dev,
struct comedi_subdevice *s,
- unsigned int chan, unsigned int val)
+ unsigned int chan, unsigned short val)
{
struct pcl818_private *devpriv = dev->private;
struct comedi_cmd *cmd = &s->async->cmd;
diff --git a/drivers/staging/ks7010/ks_wlan_net.c b/drivers/staging/ks7010/ks_wlan_net.c
index dc5459ae0b51..f624d0d53a8f 100644
--- a/drivers/staging/ks7010/ks_wlan_net.c
+++ b/drivers/staging/ks7010/ks_wlan_net.c
@@ -1120,6 +1120,7 @@ static int ks_wlan_set_scan(struct net_device *dev,
{
struct ks_wlan_private *priv = netdev_priv(dev);
struct iw_scan_req *req = NULL;
+ int len;
if (priv->sleep_mode == SLP_SLEEP)
return -EPERM;
@@ -1129,8 +1130,9 @@ static int ks_wlan_set_scan(struct net_device *dev,
if (wrqu->data.length == sizeof(struct iw_scan_req) &&
wrqu->data.flags & IW_SCAN_THIS_ESSID) {
req = (struct iw_scan_req *)extra;
- priv->scan_ssid_len = req->essid_len;
- memcpy(priv->scan_ssid, req->essid, priv->scan_ssid_len);
+ len = min_t(int, req->essid_len, IW_ESSID_MAX_SIZE);
+ priv->scan_ssid_len = len;
+ memcpy(priv->scan_ssid, req->essid, len);
} else {
priv->scan_ssid_len = 0;
}
diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index 676d549ef786..a8365e23157b 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -794,6 +794,7 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len)
/* SSID */
p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _SSID_IE_, &ie_len, (pbss_network->ie_length - _BEACON_IE_OFFSET_));
if (p && ie_len > 0) {
+ ie_len = min_t(int, ie_len, sizeof(pbss_network->Ssid.Ssid));
memset(&pbss_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
memcpy(pbss_network->Ssid.Ssid, (p + 2), ie_len);
pbss_network->Ssid.SsidLength = ie_len;
@@ -812,6 +813,7 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len)
/* get supported rates */
p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _SUPPORTEDRATES_IE_, &ie_len, (pbss_network->ie_length - _BEACON_IE_OFFSET_));
if (p) {
+ ie_len = min_t(int, ie_len, NDIS_802_11_LENGTH_RATES_EX);
memcpy(supportRate, p + 2, ie_len);
supportRateNum = ie_len;
}
@@ -819,6 +821,8 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len)
/* get ext_supported rates */
p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _EXT_SUPPORTEDRATES_IE_, &ie_len, pbss_network->ie_length - _BEACON_IE_OFFSET_);
if (p) {
+ ie_len = min_t(int, ie_len,
+ NDIS_802_11_LENGTH_RATES_EX - supportRateNum);
memcpy(supportRate + supportRateNum, p + 2, ie_len);
supportRateNum += ie_len;
}
@@ -932,6 +936,7 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len)
pht_cap->mcs.rx_mask[0] = 0xff;
pht_cap->mcs.rx_mask[1] = 0x0;
+ ie_len = min_t(int, ie_len, sizeof(pmlmepriv->htpriv.ht_cap));
memcpy(&pmlmepriv->htpriv.ht_cap, p+2, ie_len);
}
diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index 0003f0c38038..2e1f31b08e8b 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -1161,9 +1161,11 @@ static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
break;
}
sec_len = *(pos++); len -= 1;
- if (sec_len > 0 && sec_len <= len) {
+ if (sec_len > 0 &&
+ sec_len <= len &&
+ sec_len <= 32) {
ssid[ssid_index].SsidLength = sec_len;
- memcpy(ssid[ssid_index].Ssid, pos, ssid[ssid_index].SsidLength);
+ memcpy(ssid[ssid_index].Ssid, pos, sec_len);
ssid_index++;
}
pos += sec_len;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
index 843e874b8a06..c5d67525b030 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
@@ -415,9 +415,10 @@ static int _rtl92e_wx_set_scan(struct net_device *dev,
struct iw_scan_req *req = (struct iw_scan_req *)b;
if (req->essid_len) {
- ieee->current_network.ssid_len = req->essid_len;
- memcpy(ieee->current_network.ssid, req->essid,
- req->essid_len);
+ int len = min_t(int, req->essid_len, IW_ESSID_MAX_SIZE);
+
+ ieee->current_network.ssid_len = len;
+ memcpy(ieee->current_network.ssid, req->essid, len);
}
}
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c
index e4e6c979bedf..aa2206ccecee 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.c
+++ b/drivers/staging/rtl8192u/r8192U_wx.c
@@ -333,8 +333,10 @@ static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
struct iw_scan_req *req = (struct iw_scan_req *)b;
if (req->essid_len) {
- ieee->current_network.ssid_len = req->essid_len;
- memcpy(ieee->current_network.ssid, req->essid, req->essid_len);
+ int len = min_t(int, req->essid_len, IW_ESSID_MAX_SIZE);
+
+ ieee->current_network.ssid_len = len;
+ memcpy(ieee->current_network.ssid, req->essid, len);
}
}
diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
index 620cee8b8514..db7bfdf9b4b2 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.c
+++ b/drivers/staging/rtl8712/rtl871x_cmd.c
@@ -242,8 +242,10 @@ u8 r8712_sitesurvey_cmd(struct _adapter *padapter,
psurveyPara->ss_ssidlen = 0;
memset(psurveyPara->ss_ssid, 0, IW_ESSID_MAX_SIZE + 1);
if ((pssid != NULL) && (pssid->SsidLength)) {
- memcpy(psurveyPara->ss_ssid, pssid->Ssid, pssid->SsidLength);
- psurveyPara->ss_ssidlen = cpu_to_le32(pssid->SsidLength);
+ int len = min_t(int, pssid->SsidLength, IW_ESSID_MAX_SIZE);
+
+ memcpy(psurveyPara->ss_ssid, pssid->Ssid, len);
+ psurveyPara->ss_ssidlen = cpu_to_le32(len);
}
set_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
r8712_enqueue_cmd(pcmdpriv, ph2c);
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 2f490a4bf60a..4472dc76276a 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -946,7 +946,7 @@ static int r871x_wx_set_priv(struct net_device *dev,
struct iw_point *dwrq = (struct iw_point *)awrq;
len = dwrq->length;
- ext = memdup_user(dwrq->pointer, len);
+ ext = strndup_user(dwrq->pointer, len);
if (IS_ERR(ext))
return PTR_ERR(ext);
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 10db5656fd5d..949879f2f1d1 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -3742,6 +3742,7 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd)
spin_unlock(&dev->t10_pr.registration_lock);
put_unaligned_be32(add_len, &buf[4]);
+ target_set_cmd_data_length(cmd, 8 + add_len);
transport_kunmap_data_sg(cmd);
@@ -3760,7 +3761,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
struct t10_pr_registration *pr_reg;
unsigned char *buf;
u64 pr_res_key;
- u32 add_len = 16; /* Hardcoded to 16 when a reservation is held. */
+ u32 add_len = 0;
if (cmd->data_length < 8) {
pr_err("PRIN SA READ_RESERVATIONS SCSI Data Length: %u"
@@ -3778,8 +3779,9 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
pr_reg = dev->dev_pr_res_holder;
if (pr_reg) {
/*
- * Set the hardcoded Additional Length
+ * Set the Additional Length to 16 when a reservation is held
*/
+ add_len = 16;
put_unaligned_be32(add_len, &buf[4]);
if (cmd->data_length < 22)
@@ -3815,6 +3817,8 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
(pr_reg->pr_res_type & 0x0f);
}
+ target_set_cmd_data_length(cmd, 8 + add_len);
+
err:
spin_unlock(&dev->dev_reservation_lock);
transport_kunmap_data_sg(cmd);
@@ -3833,7 +3837,7 @@ core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
struct se_device *dev = cmd->se_dev;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
- u16 add_len = 8; /* Hardcoded to 8. */
+ u16 len = 8; /* Hardcoded to 8. */
if (cmd->data_length < 6) {
pr_err("PRIN SA REPORT_CAPABILITIES SCSI Data Length:"
@@ -3845,7 +3849,7 @@ core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
if (!buf)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- put_unaligned_be16(add_len, &buf[0]);
+ put_unaligned_be16(len, &buf[0]);
buf[2] |= 0x10; /* CRH: Compatible Reservation Hanlding bit. */
buf[2] |= 0x08; /* SIP_C: Specify Initiator Ports Capable bit */
buf[2] |= 0x04; /* ATP_C: All Target Ports Capable bit */
@@ -3874,6 +3878,8 @@ core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
buf[4] |= 0x02; /* PR_TYPE_WRITE_EXCLUSIVE */
buf[5] |= 0x01; /* PR_TYPE_EXCLUSIVE_ACCESS_ALLREG */
+ target_set_cmd_data_length(cmd, len);
+
transport_kunmap_data_sg(cmd);
return 0;
@@ -4034,6 +4040,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
* Set ADDITIONAL_LENGTH
*/
put_unaligned_be32(add_len, &buf[4]);
+ target_set_cmd_data_length(cmd, 8 + add_len);
transport_kunmap_data_sg(cmd);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index f1b730b77a31..bdada97cd4fe 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -841,11 +841,9 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
}
EXPORT_SYMBOL(target_complete_cmd);
-void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int length)
+void target_set_cmd_data_length(struct se_cmd *cmd, int length)
{
- if ((scsi_status == SAM_STAT_GOOD ||
- cmd->se_cmd_flags & SCF_TREAT_READ_AS_NORMAL) &&
- length < cmd->data_length) {
+ if (length < cmd->data_length) {
if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
cmd->residual_count += cmd->data_length - length;
} else {
@@ -855,6 +853,15 @@ void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int len
cmd->data_length = length;
}
+}
+EXPORT_SYMBOL(target_set_cmd_data_length);
+
+void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int length)
+{
+ if (scsi_status == SAM_STAT_GOOD ||
+ cmd->se_cmd_flags & SCF_TREAT_READ_AS_NORMAL) {
+ target_set_cmd_data_length(cmd, length);
+ }
target_complete_cmd(cmd, scsi_status);
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e847d0de6760..c523dfe408d5 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1973,6 +1973,11 @@ static const struct usb_device_id acm_ids[] = {
.driver_info = SEND_ZERO_PACKET,
},
+ /* Exclude Goodix Fingerprint Reader */
+ { USB_DEVICE(0x27c6, 0x5395),
+ .driver_info = IGNORE_DEVICE,
+ },
+
/* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) },
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index c9560d8ba3cb..5edf52a6edfc 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -494,16 +494,24 @@ static int usblp_release(struct inode *inode, struct file *file)
/* No kernel lock - fine */
static __poll_t usblp_poll(struct file *file, struct poll_table_struct *wait)
{
- __poll_t ret;
+ struct usblp *usblp = file->private_data;
+ __poll_t ret = 0;
unsigned long flags;
- struct usblp *usblp = file->private_data;
/* Should we check file->f_mode & FMODE_WRITE before poll_wait()? */
poll_wait(file, &usblp->rwait, wait);
poll_wait(file, &usblp->wwait, wait);
+
+ mutex_lock(&usblp->mut);
+ if (!usblp->present)
+ ret |= EPOLLHUP;
+ mutex_unlock(&usblp->mut);
+
spin_lock_irqsave(&usblp->lock, flags);
- ret = ((usblp->bidir && usblp->rcomplete) ? EPOLLIN | EPOLLRDNORM : 0) |
- ((usblp->no_paper || usblp->wcomplete) ? EPOLLOUT | EPOLLWRNORM : 0);
+ if (usblp->bidir && usblp->rcomplete)
+ ret |= EPOLLIN | EPOLLRDNORM;
+ if (usblp->no_paper || usblp->wcomplete)
+ ret |= EPOLLOUT | EPOLLWRNORM;
spin_unlock_irqrestore(&usblp->lock, flags);
return ret;
}
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index a6d0203e40b6..5bb5384f3612 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -234,8 +234,10 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
for (i = qcom->num_clocks - 1; i >= 0; i--)
clk_disable_unprepare(qcom->clks[i]);
+ if (device_may_wakeup(qcom->dev))
+ dwc3_qcom_enable_interrupts(qcom);
+
qcom->is_suspended = true;
- dwc3_qcom_enable_interrupts(qcom);
return 0;
}
@@ -248,7 +250,8 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom)
if (!qcom->is_suspended)
return 0;
- dwc3_qcom_disable_interrupts(qcom);
+ if (device_may_wakeup(qcom->dev))
+ dwc3_qcom_disable_interrupts(qcom);
for (i = 0; i < qcom->num_clocks; i++) {
ret = clk_prepare_enable(qcom->clks[i]);
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 2746a926a8d9..a215c836eba4 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -499,6 +499,7 @@ static void f_audio_disable(struct usb_function *f)
uac1->as_out_alt = 0;
uac1->as_in_alt = 0;
+ u_audio_stop_playback(&uac1->g_audio);
u_audio_stop_capture(&uac1->g_audio);
}
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 425981ab7a4d..8e563f56fbc2 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -482,7 +482,7 @@ static int set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts,
}
max_size_bw = num_channels(chmask) * ssize *
- DIV_ROUND_UP(srate, factor / (1 << (ep_desc->bInterval - 1)));
+ ((srate / (factor / (1 << (ep_desc->bInterval - 1)))) + 1);
ep_desc->wMaxPacketSize = cpu_to_le16(min_t(u16, max_size_bw,
max_size_ep));
diff --git a/drivers/usb/gadget/function/u_ether_configfs.h b/drivers/usb/gadget/function/u_ether_configfs.h
index cd33cee4d78b..1321e773626d 100644
--- a/drivers/usb/gadget/function/u_ether_configfs.h
+++ b/drivers/usb/gadget/function/u_ether_configfs.h
@@ -169,12 +169,11 @@ out: \
size_t len) \
{ \
struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
- int ret; \
+ int ret = -EINVAL; \
u8 val; \
\
mutex_lock(&opts->lock); \
- ret = sscanf(page, "%02hhx", &val); \
- if (ret > 0) { \
+ if (sscanf(page, "%02hhx", &val) > 0) { \
opts->_n_ = val; \
ret = len; \
} \
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 0c6b6f14b169..42ff11e3c4dc 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -53,6 +53,7 @@
#define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI 0x1142
#define PCI_DEVICE_ID_ASMEDIA_1142_XHCI 0x1242
#define PCI_DEVICE_ID_ASMEDIA_2142_XHCI 0x2142
+#define PCI_DEVICE_ID_ASMEDIA_3242_XHCI 0x3242
static const char hcd_name[] = "xhci_hcd";
@@ -237,11 +238,14 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)
xhci->quirks |= XHCI_BROKEN_STREAMS;
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
- pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
+ pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) {
xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+ xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
+ }
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
(pdev->device == PCI_DEVICE_ID_ASMEDIA_1142_XHCI ||
- pdev->device == PCI_DEVICE_ID_ASMEDIA_2142_XHCI))
+ pdev->device == PCI_DEVICE_ID_ASMEDIA_2142_XHCI ||
+ pdev->device == PCI_DEVICE_ID_ASMEDIA_3242_XHCI))
xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index a753221c2268..6c508d0313f7 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1078,6 +1078,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
struct usb_hcd *secondary_hcd;
int retval = 0;
bool comp_timer_running = false;
+ bool pending_portevent = false;
if (!hcd->state)
return 0;
@@ -1216,13 +1217,22 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
done:
if (retval == 0) {
- /* Resume root hubs only when have pending events. */
- if (xhci_pending_portevent(xhci)) {
+ /*
+ * Resume roothubs only if there are pending events.
+ * USB 3 devices resend U3 LFPS wake after a 100ms delay if
+ * the first wake signalling failed, give it that chance.
+ */
+ pending_portevent = xhci_pending_portevent(xhci);
+ if (!pending_portevent) {
+ msleep(120);
+ pending_portevent = xhci_pending_portevent(xhci);
+ }
+
+ if (pending_portevent) {
usb_hcd_resume_root_hub(xhci->shared_hcd);
usb_hcd_resume_root_hub(hcd);
}
}
-
/*
* If system is subject to the Quirk, Compliance Mode Timer needs to
* be re-initialized Always after a system resume. Ports are subject
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index 9e5afdde1adb..40576e7176d8 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -746,6 +746,8 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
void usbhs_pipe_free(struct usbhs_pipe *pipe)
{
+ usbhsp_pipe_select(pipe);
+ usbhsp_pipe_cfg_set(pipe, 0xFFFF, 0);
usbhsp_put_pipe(pipe);
}
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index c6bdf533016a..c87cb25e70ec 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -85,6 +85,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1a86, 0x7522) },
{ USB_DEVICE(0x1a86, 0x7523) },
{ USB_DEVICE(0x4348, 0x5523) },
+ { USB_DEVICE(0x9986, 0x7523) },
{ },
};
MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 07a2c72fc3a7..7d602e6ccbc0 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -146,6 +146,7 @@ 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, 0x88D8) }, /* Acuity Brands nLight Air Adapter */
{ 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 */
@@ -202,6 +203,8 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1901, 0x0194) }, /* GE Healthcare Remote Alarm Box */
{ USB_DEVICE(0x1901, 0x0195) }, /* GE B850/B650/B450 CP2104 DP UART interface */
{ USB_DEVICE(0x1901, 0x0196) }, /* GE B850 CP2105 DP UART interface */
+ { USB_DEVICE(0x1901, 0x0197) }, /* GE CS1000 Display serial interface */
+ { USB_DEVICE(0x1901, 0x0198) }, /* GE CS1000 M.2 Key E serial interface */
{ USB_DEVICE(0x199B, 0xBA30) }, /* LORD WSDA-200-USB */
{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index dab8c18e726f..44c902c7d240 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -3021,26 +3021,32 @@ static int edge_startup(struct usb_serial *serial)
response = -ENODEV;
}
- usb_free_urb(edge_serial->interrupt_read_urb);
- kfree(edge_serial->interrupt_in_buffer);
-
- usb_free_urb(edge_serial->read_urb);
- kfree(edge_serial->bulk_in_buffer);
-
- kfree(edge_serial);
-
- return response;
+ goto error;
}
/* start interrupt read for this edgeport this interrupt will
* continue as long as the edgeport is connected */
response = usb_submit_urb(edge_serial->interrupt_read_urb,
GFP_KERNEL);
- if (response)
+ if (response) {
dev_err(ddev, "%s - Error %d submitting control urb\n",
__func__, response);
+
+ goto error;
+ }
}
return response;
+
+error:
+ usb_free_urb(edge_serial->interrupt_read_urb);
+ kfree(edge_serial->interrupt_in_buffer);
+
+ usb_free_urb(edge_serial->read_urb);
+ kfree(edge_serial->bulk_in_buffer);
+
+ kfree(edge_serial);
+
+ return response;
}
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index 7931e6cecc70..6ca3d063686c 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -46,6 +46,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
int sockfd = 0;
struct socket *socket;
int rv;
+ struct task_struct *tcp_rx = NULL;
+ struct task_struct *tcp_tx = NULL;
if (!sdev) {
dev_err(dev, "sdev is null\n");
@@ -69,23 +71,47 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
}
socket = sockfd_lookup(sockfd, &err);
- if (!socket)
+ if (!socket) {
+ dev_err(dev, "failed to lookup sock");
goto err;
+ }
- sdev->ud.tcp_socket = socket;
- sdev->ud.sockfd = sockfd;
+ if (socket->type != SOCK_STREAM) {
+ dev_err(dev, "Expecting SOCK_STREAM - found %d",
+ socket->type);
+ goto sock_err;
+ }
+ /* unlock and create threads and get tasks */
spin_unlock_irq(&sdev->ud.lock);
+ tcp_rx = kthread_create(stub_rx_loop, &sdev->ud, "stub_rx");
+ if (IS_ERR(tcp_rx)) {
+ sockfd_put(socket);
+ return -EINVAL;
+ }
+ tcp_tx = kthread_create(stub_tx_loop, &sdev->ud, "stub_tx");
+ if (IS_ERR(tcp_tx)) {
+ kthread_stop(tcp_rx);
+ sockfd_put(socket);
+ return -EINVAL;
+ }
- sdev->ud.tcp_rx = kthread_get_run(stub_rx_loop, &sdev->ud,
- "stub_rx");
- sdev->ud.tcp_tx = kthread_get_run(stub_tx_loop, &sdev->ud,
- "stub_tx");
+ /* get task structs now */
+ get_task_struct(tcp_rx);
+ get_task_struct(tcp_tx);
+ /* lock and update sdev->ud state */
spin_lock_irq(&sdev->ud.lock);
+ sdev->ud.tcp_socket = socket;
+ sdev->ud.sockfd = sockfd;
+ sdev->ud.tcp_rx = tcp_rx;
+ sdev->ud.tcp_tx = tcp_tx;
sdev->ud.status = SDEV_ST_USED;
spin_unlock_irq(&sdev->ud.lock);
+ wake_up_process(sdev->ud.tcp_rx);
+ wake_up_process(sdev->ud.tcp_tx);
+
} else {
dev_info(dev, "stub down\n");
@@ -100,6 +126,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
return count;
+sock_err:
+ sockfd_put(socket);
err:
spin_unlock_irq(&sdev->ud.lock);
return -EINVAL;
diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c
index be37aec250c2..e64ea314930b 100644
--- a/drivers/usb/usbip/vhci_sysfs.c
+++ b/drivers/usb/usbip/vhci_sysfs.c
@@ -312,6 +312,8 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr,
struct vhci *vhci;
int err;
unsigned long flags;
+ struct task_struct *tcp_rx = NULL;
+ struct task_struct *tcp_tx = NULL;
/*
* @rhport: port number of vhci_hcd
@@ -349,12 +351,35 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr,
/* Extract socket from fd. */
socket = sockfd_lookup(sockfd, &err);
- if (!socket)
+ if (!socket) {
+ dev_err(dev, "failed to lookup sock");
return -EINVAL;
+ }
+ if (socket->type != SOCK_STREAM) {
+ dev_err(dev, "Expecting SOCK_STREAM - found %d",
+ socket->type);
+ sockfd_put(socket);
+ return -EINVAL;
+ }
+
+ /* create threads before locking */
+ tcp_rx = kthread_create(vhci_rx_loop, &vdev->ud, "vhci_rx");
+ if (IS_ERR(tcp_rx)) {
+ sockfd_put(socket);
+ return -EINVAL;
+ }
+ tcp_tx = kthread_create(vhci_tx_loop, &vdev->ud, "vhci_tx");
+ if (IS_ERR(tcp_tx)) {
+ kthread_stop(tcp_rx);
+ sockfd_put(socket);
+ return -EINVAL;
+ }
- /* now need lock until setting vdev status as used */
+ /* get task structs now */
+ get_task_struct(tcp_rx);
+ get_task_struct(tcp_tx);
- /* begin a lock */
+ /* now begin lock until setting vdev status set */
spin_lock_irqsave(&vhci->lock, flags);
spin_lock(&vdev->ud.lock);
@@ -364,6 +389,8 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr,
spin_unlock_irqrestore(&vhci->lock, flags);
sockfd_put(socket);
+ kthread_stop_put(tcp_rx);
+ kthread_stop_put(tcp_tx);
dev_err(dev, "port %d already used\n", rhport);
/*
@@ -382,14 +409,16 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr,
vdev->speed = speed;
vdev->ud.sockfd = sockfd;
vdev->ud.tcp_socket = socket;
+ vdev->ud.tcp_rx = tcp_rx;
+ vdev->ud.tcp_tx = tcp_tx;
vdev->ud.status = VDEV_ST_NOTASSIGNED;
spin_unlock(&vdev->ud.lock);
spin_unlock_irqrestore(&vhci->lock, flags);
/* end the lock */
- vdev->ud.tcp_rx = kthread_get_run(vhci_rx_loop, &vdev->ud, "vhci_rx");
- vdev->ud.tcp_tx = kthread_get_run(vhci_tx_loop, &vdev->ud, "vhci_tx");
+ wake_up_process(vdev->ud.tcp_rx);
+ wake_up_process(vdev->ud.tcp_tx);
rh_port_connect(vdev, speed);
diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
index 6dcd3ff655c3..741852bd148e 100644
--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -12,6 +12,7 @@
#include <linux/usb/ch9.h>
#include <linux/sysfs.h>
#include <linux/kthread.h>
+#include <linux/file.h>
#include <linux/byteorder/generic.h>
#include "usbip_common.h"
@@ -90,8 +91,9 @@ static ssize_t dev_desc_read(struct file *file, struct kobject *kobj,
}
static BIN_ATTR_RO(dev_desc, sizeof(struct usb_device_descriptor));
-static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *attr,
- const char *in, size_t count)
+static ssize_t usbip_sockfd_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *in, size_t count)
{
struct vudc *udc = (struct vudc *) dev_get_drvdata(dev);
int rv;
@@ -100,6 +102,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
struct socket *socket;
unsigned long flags;
int ret;
+ struct task_struct *tcp_rx = NULL;
+ struct task_struct *tcp_tx = NULL;
rv = kstrtoint(in, 0, &sockfd);
if (rv != 0)
@@ -138,24 +142,54 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
goto unlock_ud;
}
- udc->ud.tcp_socket = socket;
+ if (socket->type != SOCK_STREAM) {
+ dev_err(dev, "Expecting SOCK_STREAM - found %d",
+ socket->type);
+ ret = -EINVAL;
+ goto sock_err;
+ }
+ /* unlock and create threads and get tasks */
spin_unlock_irq(&udc->ud.lock);
spin_unlock_irqrestore(&udc->lock, flags);
- udc->ud.tcp_rx = kthread_get_run(&v_rx_loop,
- &udc->ud, "vudc_rx");
- udc->ud.tcp_tx = kthread_get_run(&v_tx_loop,
- &udc->ud, "vudc_tx");
+ tcp_rx = kthread_create(&v_rx_loop, &udc->ud, "vudc_rx");
+ if (IS_ERR(tcp_rx)) {
+ sockfd_put(socket);
+ return -EINVAL;
+ }
+ tcp_tx = kthread_create(&v_tx_loop, &udc->ud, "vudc_tx");
+ if (IS_ERR(tcp_tx)) {
+ kthread_stop(tcp_rx);
+ sockfd_put(socket);
+ return -EINVAL;
+ }
+
+ /* get task structs now */
+ get_task_struct(tcp_rx);
+ get_task_struct(tcp_tx);
+ /* lock and update udc->ud state */
spin_lock_irqsave(&udc->lock, flags);
spin_lock_irq(&udc->ud.lock);
+
+ udc->ud.tcp_socket = socket;
+ udc->ud.tcp_rx = tcp_rx;
+ udc->ud.tcp_rx = tcp_tx;
udc->ud.status = SDEV_ST_USED;
+
spin_unlock_irq(&udc->ud.lock);
ktime_get_ts64(&udc->start_time);
v_start_timer(udc);
udc->connected = 1;
+
+ spin_unlock_irqrestore(&udc->lock, flags);
+
+ wake_up_process(udc->ud.tcp_rx);
+ wake_up_process(udc->ud.tcp_tx);
+ return count;
+
} else {
if (!udc->connected) {
dev_err(dev, "Device not connected");
@@ -177,6 +211,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
return count;
+sock_err:
+ sockfd_put(socket);
unlock_ud:
spin_unlock_irq(&udc->ud.lock);
unlock:
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c
index f026624898e7..77cc80bcb479 100644
--- a/drivers/xen/events/events_2l.c
+++ b/drivers/xen/events/events_2l.c
@@ -47,6 +47,11 @@ static unsigned evtchn_2l_max_channels(void)
return EVTCHN_2L_NR_CHANNELS;
}
+static void evtchn_2l_remove(evtchn_port_t evtchn, unsigned int cpu)
+{
+ clear_bit(evtchn, BM(per_cpu(cpu_evtchn_mask, cpu)));
+}
+
static void evtchn_2l_bind_to_cpu(struct irq_info *info, unsigned cpu)
{
clear_bit(info->evtchn, BM(per_cpu(cpu_evtchn_mask, info->cpu)));
@@ -71,12 +76,6 @@ static bool evtchn_2l_is_pending(unsigned port)
return sync_test_bit(port, BM(&s->evtchn_pending[0]));
}
-static bool evtchn_2l_test_and_set_mask(unsigned port)
-{
- struct shared_info *s = HYPERVISOR_shared_info;
- return sync_test_and_set_bit(port, BM(&s->evtchn_mask[0]));
-}
-
static void evtchn_2l_mask(unsigned port)
{
struct shared_info *s = HYPERVISOR_shared_info;
@@ -354,18 +353,27 @@ static void evtchn_2l_resume(void)
EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD);
}
+static int evtchn_2l_percpu_deinit(unsigned int cpu)
+{
+ memset(per_cpu(cpu_evtchn_mask, cpu), 0, sizeof(xen_ulong_t) *
+ EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD);
+
+ return 0;
+}
+
static const struct evtchn_ops evtchn_ops_2l = {
.max_channels = evtchn_2l_max_channels,
.nr_channels = evtchn_2l_max_channels,
+ .remove = evtchn_2l_remove,
.bind_to_cpu = evtchn_2l_bind_to_cpu,
.clear_pending = evtchn_2l_clear_pending,
.set_pending = evtchn_2l_set_pending,
.is_pending = evtchn_2l_is_pending,
- .test_and_set_mask = evtchn_2l_test_and_set_mask,
.mask = evtchn_2l_mask,
.unmask = evtchn_2l_unmask,
.handle_events = evtchn_2l_handle_events,
.resume = evtchn_2l_resume,
+ .percpu_deinit = evtchn_2l_percpu_deinit,
};
void __init xen_evtchn_2l_init(void)
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 8c08c7d46d3d..fae2a536acc6 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -98,6 +98,7 @@ static DEFINE_RWLOCK(evtchn_rwlock);
* evtchn_rwlock
* IRQ-desc lock
* percpu eoi_list_lock
+ * irq_info->lock
*/
static LIST_HEAD(xen_irq_list_head);
@@ -219,6 +220,8 @@ static int xen_irq_info_common_setup(struct irq_info *info,
info->irq = irq;
info->evtchn = evtchn;
info->cpu = cpu;
+ info->mask_reason = EVT_MASK_REASON_EXPLICIT;
+ spin_lock_init(&info->lock);
ret = set_evtchn_to_irq(evtchn, irq);
if (ret < 0)
@@ -285,6 +288,7 @@ static int xen_irq_info_pirq_setup(unsigned irq,
static void xen_irq_info_cleanup(struct irq_info *info)
{
set_evtchn_to_irq(info->evtchn, -1);
+ xen_evtchn_port_remove(info->evtchn, info->cpu);
info->evtchn = 0;
}
@@ -365,6 +369,34 @@ unsigned int cpu_from_evtchn(unsigned int evtchn)
return ret;
}
+static void do_mask(struct irq_info *info, u8 reason)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&info->lock, flags);
+
+ if (!info->mask_reason)
+ mask_evtchn(info->evtchn);
+
+ info->mask_reason |= reason;
+
+ spin_unlock_irqrestore(&info->lock, flags);
+}
+
+static void do_unmask(struct irq_info *info, u8 reason)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&info->lock, flags);
+
+ info->mask_reason &= ~reason;
+
+ if (!info->mask_reason)
+ unmask_evtchn(info->evtchn);
+
+ spin_unlock_irqrestore(&info->lock, flags);
+}
+
#ifdef CONFIG_X86
static bool pirq_check_eoi_map(unsigned irq)
{
@@ -492,7 +524,7 @@ static void xen_irq_lateeoi_locked(struct irq_info *info, bool spurious)
}
info->eoi_time = 0;
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_EOI_PENDING);
}
static void xen_irq_lateeoi_worker(struct work_struct *work)
@@ -661,6 +693,12 @@ static void xen_evtchn_close(unsigned int port)
BUG();
}
+static void event_handler_exit(struct irq_info *info)
+{
+ smp_store_release(&info->is_active, 0);
+ clear_evtchn(info->evtchn);
+}
+
static void pirq_query_unmask(int irq)
{
struct physdev_irq_status_query irq_status;
@@ -679,7 +717,8 @@ static void pirq_query_unmask(int irq)
static void eoi_pirq(struct irq_data *data)
{
- int evtchn = evtchn_from_irq(data->irq);
+ struct irq_info *info = info_for_irq(data->irq);
+ int evtchn = info ? info->evtchn : 0;
struct physdev_eoi eoi = { .irq = pirq_from_irq(data->irq) };
int rc = 0;
@@ -688,16 +727,15 @@ static void eoi_pirq(struct irq_data *data)
if (unlikely(irqd_is_setaffinity_pending(data)) &&
likely(!irqd_irq_disabled(data))) {
- int masked = test_and_set_mask(evtchn);
+ do_mask(info, EVT_MASK_REASON_TEMPORARY);
- clear_evtchn(evtchn);
+ event_handler_exit(info);
irq_move_masked_irq(data);
- if (!masked)
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_TEMPORARY);
} else
- clear_evtchn(evtchn);
+ event_handler_exit(info);
if (pirq_needs_eoi(data->irq)) {
rc = HYPERVISOR_physdev_op(PHYSDEVOP_eoi, &eoi);
@@ -748,7 +786,8 @@ static unsigned int __startup_pirq(unsigned int irq)
goto err;
out:
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_EXPLICIT);
+
eoi_pirq(irq_get_irq_data(irq));
return 0;
@@ -775,7 +814,7 @@ static void shutdown_pirq(struct irq_data *data)
if (!VALID_EVTCHN(evtchn))
return;
- mask_evtchn(evtchn);
+ do_mask(info, EVT_MASK_REASON_EXPLICIT);
xen_evtchn_close(evtchn);
xen_irq_info_cleanup(info);
}
@@ -1532,6 +1571,8 @@ void handle_irq_for_port(evtchn_port_t port, struct evtchn_loop_ctrl *ctrl)
}
info = info_for_irq(irq);
+ if (xchg_acquire(&info->is_active, 1))
+ return;
if (ctrl->defer_eoi) {
info->eoi_cpu = smp_processor_id();
@@ -1634,10 +1675,10 @@ void rebind_evtchn_irq(int evtchn, int irq)
}
/* Rebind an evtchn so that it gets delivered to a specific cpu */
-static int xen_rebind_evtchn_to_cpu(int evtchn, unsigned int tcpu)
+static int xen_rebind_evtchn_to_cpu(struct irq_info *info, unsigned int tcpu)
{
struct evtchn_bind_vcpu bind_vcpu;
- int masked;
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (!VALID_EVTCHN(evtchn))
return -1;
@@ -1653,7 +1694,7 @@ static int xen_rebind_evtchn_to_cpu(int evtchn, unsigned int tcpu)
* Mask the event while changing the VCPU binding to prevent
* it being delivered on an unexpected VCPU.
*/
- masked = test_and_set_mask(evtchn);
+ do_mask(info, EVT_MASK_REASON_TEMPORARY);
/*
* If this fails, it usually just indicates that we're dealing with a
@@ -1663,8 +1704,7 @@ static int xen_rebind_evtchn_to_cpu(int evtchn, unsigned int tcpu)
if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0)
bind_evtchn_to_cpu(evtchn, tcpu);
- if (!masked)
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_TEMPORARY);
return 0;
}
@@ -1673,7 +1713,7 @@ static int set_affinity_irq(struct irq_data *data, const struct cpumask *dest,
bool force)
{
unsigned tcpu = cpumask_first_and(dest, cpu_online_mask);
- int ret = xen_rebind_evtchn_to_cpu(evtchn_from_irq(data->irq), tcpu);
+ int ret = xen_rebind_evtchn_to_cpu(info_for_irq(data->irq), tcpu);
if (!ret)
irq_data_update_effective_affinity(data, cpumask_of(tcpu));
@@ -1692,39 +1732,41 @@ EXPORT_SYMBOL_GPL(xen_set_affinity_evtchn);
static void enable_dynirq(struct irq_data *data)
{
- int evtchn = evtchn_from_irq(data->irq);
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (VALID_EVTCHN(evtchn))
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_EXPLICIT);
}
static void disable_dynirq(struct irq_data *data)
{
- int evtchn = evtchn_from_irq(data->irq);
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (VALID_EVTCHN(evtchn))
- mask_evtchn(evtchn);
+ do_mask(info, EVT_MASK_REASON_EXPLICIT);
}
static void ack_dynirq(struct irq_data *data)
{
- int evtchn = evtchn_from_irq(data->irq);
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (!VALID_EVTCHN(evtchn))
return;
if (unlikely(irqd_is_setaffinity_pending(data)) &&
likely(!irqd_irq_disabled(data))) {
- int masked = test_and_set_mask(evtchn);
+ do_mask(info, EVT_MASK_REASON_TEMPORARY);
- clear_evtchn(evtchn);
+ event_handler_exit(info);
irq_move_masked_irq(data);
- if (!masked)
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_TEMPORARY);
} else
- clear_evtchn(evtchn);
+ event_handler_exit(info);
}
static void mask_ack_dynirq(struct irq_data *data)
@@ -1733,18 +1775,39 @@ static void mask_ack_dynirq(struct irq_data *data)
ack_dynirq(data);
}
+static void lateeoi_ack_dynirq(struct irq_data *data)
+{
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
+
+ if (VALID_EVTCHN(evtchn)) {
+ do_mask(info, EVT_MASK_REASON_EOI_PENDING);
+ event_handler_exit(info);
+ }
+}
+
+static void lateeoi_mask_ack_dynirq(struct irq_data *data)
+{
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
+
+ if (VALID_EVTCHN(evtchn)) {
+ do_mask(info, EVT_MASK_REASON_EXPLICIT);
+ event_handler_exit(info);
+ }
+}
+
static int retrigger_dynirq(struct irq_data *data)
{
- unsigned int evtchn = evtchn_from_irq(data->irq);
- int masked;
+ struct irq_info *info = info_for_irq(data->irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (!VALID_EVTCHN(evtchn))
return 0;
- masked = test_and_set_mask(evtchn);
+ do_mask(info, EVT_MASK_REASON_TEMPORARY);
set_evtchn(evtchn);
- if (!masked)
- unmask_evtchn(evtchn);
+ do_unmask(info, EVT_MASK_REASON_TEMPORARY);
return 1;
}
@@ -1839,10 +1902,11 @@ static void restore_cpu_ipis(unsigned int cpu)
/* Clear an irq's pending state, in preparation for polling on it */
void xen_clear_irq_pending(int irq)
{
- int evtchn = evtchn_from_irq(irq);
+ struct irq_info *info = info_for_irq(irq);
+ evtchn_port_t evtchn = info ? info->evtchn : 0;
if (VALID_EVTCHN(evtchn))
- clear_evtchn(evtchn);
+ event_handler_exit(info);
}
EXPORT_SYMBOL(xen_clear_irq_pending);
void xen_set_irq_pending(int irq)
@@ -1950,8 +2014,8 @@ static struct irq_chip xen_lateeoi_chip __read_mostly = {
.irq_mask = disable_dynirq,
.irq_unmask = enable_dynirq,
- .irq_ack = mask_ack_dynirq,
- .irq_mask_ack = mask_ack_dynirq,
+ .irq_ack = lateeoi_ack_dynirq,
+ .irq_mask_ack = lateeoi_mask_ack_dynirq,
.irq_set_affinity = set_affinity_irq,
.irq_retrigger = retrigger_dynirq,
diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c
index 33462521bfd0..360a7f8cdf75 100644
--- a/drivers/xen/events/events_fifo.c
+++ b/drivers/xen/events/events_fifo.c
@@ -209,12 +209,6 @@ static bool evtchn_fifo_is_pending(unsigned port)
return sync_test_bit(EVTCHN_FIFO_BIT(PENDING, word), BM(word));
}
-static bool evtchn_fifo_test_and_set_mask(unsigned port)
-{
- event_word_t *word = event_word_from_port(port);
- return sync_test_and_set_bit(EVTCHN_FIFO_BIT(MASKED, word), BM(word));
-}
-
static void evtchn_fifo_mask(unsigned port)
{
event_word_t *word = event_word_from_port(port);
@@ -420,7 +414,6 @@ static const struct evtchn_ops evtchn_ops_fifo = {
.clear_pending = evtchn_fifo_clear_pending,
.set_pending = evtchn_fifo_set_pending,
.is_pending = evtchn_fifo_is_pending,
- .test_and_set_mask = evtchn_fifo_test_and_set_mask,
.mask = evtchn_fifo_mask,
.unmask = evtchn_fifo_unmask,
.handle_events = evtchn_fifo_handle_events,
diff --git a/drivers/xen/events/events_internal.h b/drivers/xen/events/events_internal.h
index b9b4f5919893..3df6f28b75e6 100644
--- a/drivers/xen/events/events_internal.h
+++ b/drivers/xen/events/events_internal.h
@@ -35,13 +35,19 @@ struct irq_info {
struct list_head eoi_list;
short refcnt;
short spurious_cnt;
- enum xen_irq_type type; /* type */
+ short type; /* type */
+ u8 mask_reason; /* Why is event channel masked */
+#define EVT_MASK_REASON_EXPLICIT 0x01
+#define EVT_MASK_REASON_TEMPORARY 0x02
+#define EVT_MASK_REASON_EOI_PENDING 0x04
+ u8 is_active; /* Is event just being handled? */
unsigned irq;
unsigned int evtchn; /* event channel */
unsigned short cpu; /* cpu bound */
unsigned short eoi_cpu; /* EOI must happen on this cpu */
unsigned int irq_epoch; /* If eoi_cpu valid: irq_epoch of event */
u64 eoi_time; /* Time in jiffies when to EOI. */
+ spinlock_t lock;
union {
unsigned short virq;
@@ -67,12 +73,12 @@ struct evtchn_ops {
unsigned (*nr_channels)(void);
int (*setup)(struct irq_info *info);
+ void (*remove)(evtchn_port_t port, unsigned int cpu);
void (*bind_to_cpu)(struct irq_info *info, unsigned cpu);
void (*clear_pending)(unsigned port);
void (*set_pending)(unsigned port);
bool (*is_pending)(unsigned port);
- bool (*test_and_set_mask)(unsigned port);
void (*mask)(unsigned port);
void (*unmask)(unsigned port);
@@ -109,6 +115,13 @@ static inline int xen_evtchn_port_setup(struct irq_info *info)
return 0;
}
+static inline void xen_evtchn_port_remove(evtchn_port_t evtchn,
+ unsigned int cpu)
+{
+ if (evtchn_ops->remove)
+ evtchn_ops->remove(evtchn, cpu);
+}
+
static inline void xen_evtchn_port_bind_to_cpu(struct irq_info *info,
unsigned cpu)
{
@@ -130,11 +143,6 @@ static inline bool test_evtchn(unsigned port)
return evtchn_ops->is_pending(port);
}
-static inline bool test_and_set_mask(unsigned port)
-{
- return evtchn_ops->test_and_set_mask(port);
-}
-
static inline void mask_evtchn(unsigned port)
{
return evtchn_ops->mask(port);
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index aa4a7a23ff99..27a04f492541 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -694,12 +694,24 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
struct super_block *sb = file_inode(file)->i_sb;
struct dentry *root = sb->s_root, *dentry;
int err = 0;
+ struct file *f = NULL;
e = create_entry(buffer, count);
if (IS_ERR(e))
return PTR_ERR(e);
+ if (e->flags & MISC_FMT_OPEN_FILE) {
+ f = open_exec(e->interpreter);
+ if (IS_ERR(f)) {
+ pr_notice("register: failed to install interpreter file %s\n",
+ e->interpreter);
+ kfree(e);
+ return PTR_ERR(f);
+ }
+ e->interp_file = f;
+ }
+
inode_lock(d_inode(root));
dentry = lookup_one_len(e->name, root, strlen(e->name));
err = PTR_ERR(dentry);
@@ -723,21 +735,6 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
goto out2;
}
- if (e->flags & MISC_FMT_OPEN_FILE) {
- struct file *f;
-
- f = open_exec(e->interpreter);
- if (IS_ERR(f)) {
- err = PTR_ERR(f);
- pr_notice("register: failed to install interpreter file %s\n", e->interpreter);
- simple_release_fs(&bm_mnt, &entry_count);
- iput(inode);
- inode = NULL;
- goto out2;
- }
- e->interp_file = f;
- }
-
e->dentry = dget(dentry);
inode->i_private = e;
inode->i_fop = &bm_entry_operations;
@@ -754,6 +751,8 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
inode_unlock(d_inode(root));
if (err) {
+ if (f)
+ filp_close(f, NULL);
kfree(e);
return err;
}
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index d5457015801d..bc906fcf3f6d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -229,7 +229,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
rc = server->ops->queryfs(xid, tcon, buf);
free_xid(xid);
- return 0;
+ return rc;
}
static long cifs_fallocate(struct file *file, int mode, loff_t off, loff_t len)
diff --git a/fs/configfs/file.c b/fs/configfs/file.c
index bb0a427517e9..50b7c4c4310e 100644
--- a/fs/configfs/file.c
+++ b/fs/configfs/file.c
@@ -392,7 +392,7 @@ static int __configfs_open_file(struct inode *inode, struct file *file, int type
attr = to_attr(dentry);
if (!attr)
- goto out_put_item;
+ goto out_free_buffer;
if (type & CONFIGFS_ITEM_BIN_ATTR) {
buffer->bin_attr = to_bin_attr(dentry);
@@ -405,7 +405,7 @@ static int __configfs_open_file(struct inode *inode, struct file *file, int type
/* Grab the module reference for this attribute if we have one */
error = -ENODEV;
if (!try_module_get(buffer->owner))
- goto out_put_item;
+ goto out_free_buffer;
error = -EACCES;
if (!buffer->item->ci_type)
@@ -449,8 +449,6 @@ static int __configfs_open_file(struct inode *inode, struct file *file, int type
out_put_module:
module_put(buffer->owner);
-out_put_item:
- config_item_put(buffer->item);
out_free_buffer:
up_read(&frag->frag_sem);
kfree(buffer);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d89a815f7c31..d63b248582d1 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5611,7 +5611,7 @@ static int _nfs4_get_security_label(struct inode *inode, void *buf,
return ret;
if (!(fattr.valid & NFS_ATTR_FATTR_V4_SECURITY_LABEL))
return -ENOENT;
- return 0;
+ return label.len;
}
static int nfs4_get_security_label(struct inode *inode, void *buf,
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 3bf89a633836..f5500d2a3879 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -540,11 +540,14 @@ static int udf_do_extend_file(struct inode *inode,
udf_write_aext(inode, last_pos, &last_ext->extLocation,
last_ext->extLength, 1);
+
/*
- * We've rewritten the last extent but there may be empty
- * indirect extent after it - enter it.
+ * We've rewritten the last extent. If we are going to add
+ * more extents, we may need to enter possible following
+ * empty indirect extent.
*/
- udf_next_aext(inode, last_pos, &tmploc, &tmplen, 0);
+ if (new_block_bytes || prealloc_len)
+ udf_next_aext(inode, last_pos, &tmploc, &tmplen, 0);
}
/* Managed to do everything necessary? */
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index a34694e675c9..fd1ae7907250 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -49,8 +49,12 @@ static inline void can_skb_reserve(struct sk_buff *skb)
static inline void can_skb_set_owner(struct sk_buff *skb, struct sock *sk)
{
- if (sk) {
- sock_hold(sk);
+ /* If the socket has already been closed by user space, the
+ * refcount may already be 0 (and the socket will be freed
+ * after the last TX skb has been freed). So only increase
+ * socket refcount if the refcount is > 0.
+ */
+ if (sk && refcount_inc_not_zero(&sk->sk_refcnt)) {
skb->destructor = sock_efree;
skb->sk = sk;
}
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9770e08c7e02..ca5f053c6b66 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -274,6 +274,7 @@ struct header_ops {
const struct net_device *dev,
const unsigned char *haddr);
bool (*validate)(const char *ll_header, unsigned int len);
+ __be16 (*parse_protocol)(const struct sk_buff *skb);
};
/* These flag bits are private to the generic network queueing
@@ -2895,6 +2896,15 @@ static inline int dev_parse_header(const struct sk_buff *skb,
return dev->header_ops->parse(skb, haddr);
}
+static inline __be16 dev_parse_header_protocol(const struct sk_buff *skb)
+{
+ const struct net_device *dev = skb->dev;
+
+ if (!dev->header_ops || !dev->header_ops->parse_protocol)
+ return 0;
+ return dev->header_ops->parse_protocol(skb);
+}
+
/* ll_header must have at least hard_header_len allocated */
static inline bool dev_validate_header(const struct net_device *dev,
char *ll_header, int len)
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 8d3b7e731b74..ef54f4b3f1e4 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -167,7 +167,8 @@ static inline bool in_vfork(struct task_struct *tsk)
* another oom-unkillable task does this it should blame itself.
*/
rcu_read_lock();
- ret = tsk->vfork_done && tsk->real_parent->mm == tsk->mm;
+ ret = tsk->vfork_done &&
+ rcu_dereference(tsk->real_parent)->mm == tsk->mm;
rcu_read_unlock();
return ret;
diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 6d3635c86dbe..ccdaa8fd5657 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -138,7 +138,7 @@ int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data,
const struct cpumask *cpus);
#else /* CONFIG_SMP || CONFIG_HOTPLUG_CPU */
-static inline int stop_machine_cpuslocked(cpu_stop_fn_t fn, void *data,
+static __always_inline int stop_machine_cpuslocked(cpu_stop_fn_t fn, void *data,
const struct cpumask *cpus)
{
unsigned long flags;
@@ -149,14 +149,15 @@ static inline int stop_machine_cpuslocked(cpu_stop_fn_t fn, void *data,
return ret;
}
-static inline int stop_machine(cpu_stop_fn_t fn, void *data,
- const struct cpumask *cpus)
+static __always_inline int
+stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus)
{
return stop_machine_cpuslocked(fn, data, cpus);
}
-static inline int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data,
- const struct cpumask *cpus)
+static __always_inline int
+stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data,
+ const struct cpumask *cpus)
{
return stop_machine(fn, data, cpus);
}
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index f32fe7080d2e..98e7716e0341 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -79,8 +79,13 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
if (gso_type && skb->network_header) {
struct flow_keys_basic keys;
- if (!skb->protocol)
+ if (!skb->protocol) {
+ __be16 protocol = dev_parse_header_protocol(skb);
+
virtio_net_hdr_set_proto(skb, hdr);
+ if (protocol && protocol != skb->protocol)
+ return -EINVAL;
+ }
retry:
if (!skb_flow_dissect_flow_keys_basic(skb, &keys,
NULL, 0, 0, 0,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4fe3ab47b480..3f0d654984cf 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1880,7 +1880,7 @@ static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp)
static inline bool tcp_stream_memory_free(const struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
- u32 notsent_bytes = tp->write_seq - tp->snd_nxt;
+ u32 notsent_bytes = READ_ONCE(tp->write_seq) - tp->snd_nxt;
return notsent_bytes < tcp_notsent_lowat(tp);
}
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 51b6f50eabee..0deeff9b4496 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -69,6 +69,7 @@ int transport_backend_register(const struct target_backend_ops *);
void target_backend_unregister(const struct target_backend_ops *);
void target_complete_cmd(struct se_cmd *, u8);
+void target_set_cmd_data_length(struct se_cmd *, int);
void target_complete_cmd_with_length(struct se_cmd *, u8, int);
void transport_copy_sense_to_cmd(struct se_cmd *, unsigned char *);
diff --git a/include/uapi/linux/netfilter/nfnetlink_cthelper.h b/include/uapi/linux/netfilter/nfnetlink_cthelper.h
index a13137afc429..70af02092d16 100644
--- a/include/uapi/linux/netfilter/nfnetlink_cthelper.h
+++ b/include/uapi/linux/netfilter/nfnetlink_cthelper.h
@@ -5,7 +5,7 @@
#define NFCT_HELPER_STATUS_DISABLED 0
#define NFCT_HELPER_STATUS_ENABLED 1
-enum nfnl_acct_msg_types {
+enum nfnl_cthelper_msg_types {
NFNL_MSG_CTHELPER_NEW,
NFNL_MSG_CTHELPER_GET,
NFNL_MSG_CTHELPER_DEL,
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 7362554416fd..ccde4dc8462c 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -536,8 +536,11 @@ static ktime_t __hrtimer_next_event_base(struct hrtimer_cpu_base *cpu_base,
}
/*
- * Recomputes cpu_base::*next_timer and returns the earliest expires_next but
- * does not set cpu_base::*expires_next, that is done by hrtimer_reprogram.
+ * Recomputes cpu_base::*next_timer and returns the earliest expires_next
+ * but does not set cpu_base::*expires_next, that is done by
+ * hrtimer[_force]_reprogram and hrtimer_interrupt only. When updating
+ * cpu_base::*expires_next right away, reprogramming logic would no longer
+ * work.
*
* When a softirq is pending, we can ignore the HRTIMER_ACTIVE_SOFT bases,
* those timers will get run whenever the softirq gets handled, at the end of
@@ -578,6 +581,37 @@ __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base, unsigned int active_
return expires_next;
}
+static ktime_t hrtimer_update_next_event(struct hrtimer_cpu_base *cpu_base)
+{
+ ktime_t expires_next, soft = KTIME_MAX;
+
+ /*
+ * If the soft interrupt has already been activated, ignore the
+ * soft bases. They will be handled in the already raised soft
+ * interrupt.
+ */
+ if (!cpu_base->softirq_activated) {
+ soft = __hrtimer_get_next_event(cpu_base, HRTIMER_ACTIVE_SOFT);
+ /*
+ * Update the soft expiry time. clock_settime() might have
+ * affected it.
+ */
+ cpu_base->softirq_expires_next = soft;
+ }
+
+ expires_next = __hrtimer_get_next_event(cpu_base, HRTIMER_ACTIVE_HARD);
+ /*
+ * If a softirq timer is expiring first, update cpu_base->next_timer
+ * and program the hardware with the soft expiry time.
+ */
+ if (expires_next > soft) {
+ cpu_base->next_timer = cpu_base->softirq_next_timer;
+ expires_next = soft;
+ }
+
+ return expires_next;
+}
+
static inline ktime_t hrtimer_update_base(struct hrtimer_cpu_base *base)
{
ktime_t *offs_real = &base->clock_base[HRTIMER_BASE_REALTIME].offset;
@@ -618,23 +652,7 @@ hrtimer_force_reprogram(struct hrtimer_cpu_base *cpu_base, int skip_equal)
{
ktime_t expires_next;
- /*
- * Find the current next expiration time.
- */
- expires_next = __hrtimer_get_next_event(cpu_base, HRTIMER_ACTIVE_ALL);
-
- if (cpu_base->next_timer && cpu_base->next_timer->is_soft) {
- /*
- * When the softirq is activated, hrtimer has to be
- * programmed with the first hard hrtimer because soft
- * timer interrupt could occur too late.
- */
- if (cpu_base->softirq_activated)
- expires_next = __hrtimer_get_next_event(cpu_base,
- HRTIMER_ACTIVE_HARD);
- else
- cpu_base->softirq_expires_next = expires_next;
- }
+ expires_next = hrtimer_update_next_event(cpu_base);
if (skip_equal && expires_next == cpu_base->expires_next)
return;
@@ -1520,8 +1538,8 @@ void hrtimer_interrupt(struct clock_event_device *dev)
__hrtimer_run_queues(cpu_base, now, flags, HRTIMER_ACTIVE_HARD);
- /* Reevaluate the clock bases for the next expiry */
- expires_next = __hrtimer_get_next_event(cpu_base, HRTIMER_ACTIVE_ALL);
+ /* Reevaluate the clock bases for the [soft] next expiry */
+ expires_next = hrtimer_update_next_event(cpu_base);
/*
* Store the new expiry value so the migration code can verify
* against it.
diff --git a/lib/logic_pio.c b/lib/logic_pio.c
index 905027574e5d..774bb02fff10 100644
--- a/lib/logic_pio.c
+++ b/lib/logic_pio.c
@@ -27,6 +27,8 @@ static DEFINE_MUTEX(io_range_mutex);
* @new_range: pointer to the IO range to be registered.
*
* Returns 0 on success, the error code in case of failure.
+ * If the range already exists, -EEXIST will be returned, which should be
+ * considered a success.
*
* Register a new IO range node in the IO range list.
*/
@@ -49,6 +51,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range)
list_for_each_entry(range, &io_range_list, list) {
if (range->fwnode == new_range->fwnode) {
/* range already there */
+ ret = -EEXIST;
goto end_register;
}
if (range->flags == LOGIC_PIO_CPU_MMIO &&
diff --git a/mm/slub.c b/mm/slub.c
index eac80b0516fe..da141e5974f2 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1830,7 +1830,7 @@ static void *get_partial_node(struct kmem_cache *s, struct kmem_cache_node *n,
t = acquire_slab(s, n, page, object == NULL, &objects);
if (!t)
- continue; /* cmpxchg raced */
+ break;
available += objects;
if (!object) {
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 5535b722f66d..6a1b52b34e20 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -533,16 +533,10 @@ int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info)
ret_val = -ENOENT;
goto doi_remove_return;
}
- if (!refcount_dec_and_test(&doi_def->refcount)) {
- spin_unlock(&cipso_v4_doi_list_lock);
- ret_val = -EBUSY;
- goto doi_remove_return;
- }
list_del_rcu(&doi_def->list);
spin_unlock(&cipso_v4_doi_list_lock);
- cipso_v4_cache_invalidate();
- call_rcu(&doi_def->rcu, cipso_v4_doi_free_rcu);
+ cipso_v4_doi_putdef(doi_def);
ret_val = 0;
doi_remove_return:
@@ -599,9 +593,6 @@ void cipso_v4_doi_putdef(struct cipso_v4_doi *doi_def)
if (!refcount_dec_and_test(&doi_def->refcount))
return;
- spin_lock(&cipso_v4_doi_list_lock);
- list_del_rcu(&doi_def->list);
- spin_unlock(&cipso_v4_doi_list_lock);
cipso_v4_cache_invalidate();
call_rcu(&doi_def->rcu, cipso_v4_doi_free_rcu);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 98e8ee8bb759..769e1f683471 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -567,7 +567,7 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
(state != TCP_SYN_RECV || tp->fastopen_rsk)) {
int target = sock_rcvlowat(sk, 0, INT_MAX);
- if (tp->urg_seq == tp->copied_seq &&
+ if (tp->urg_seq == READ_ONCE(tp->copied_seq) &&
!sock_flag(sk, SOCK_URGINLINE) &&
tp->urg_data)
target++;
@@ -628,7 +628,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
unlock_sock_fast(sk, slow);
break;
case SIOCATMARK:
- answ = tp->urg_data && tp->urg_seq == tp->copied_seq;
+ answ = tp->urg_data && tp->urg_seq == READ_ONCE(tp->copied_seq);
break;
case SIOCOUTQ:
if (sk->sk_state == TCP_LISTEN)
@@ -637,7 +637,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
answ = 0;
else
- answ = tp->write_seq - tp->snd_una;
+ answ = READ_ONCE(tp->write_seq) - tp->snd_una;
break;
case SIOCOUTQNSD:
if (sk->sk_state == TCP_LISTEN)
@@ -646,7 +646,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
answ = 0;
else
- answ = tp->write_seq - tp->snd_nxt;
+ answ = READ_ONCE(tp->write_seq) - tp->snd_nxt;
break;
default:
return -ENOIOCTLCMD;
@@ -1037,7 +1037,7 @@ ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
sk->sk_wmem_queued += copy;
sk_mem_charge(sk, copy);
skb->ip_summed = CHECKSUM_PARTIAL;
- tp->write_seq += copy;
+ WRITE_ONCE(tp->write_seq, tp->write_seq + copy);
TCP_SKB_CB(skb)->end_seq += copy;
tcp_skb_pcount_set(skb, 0);
@@ -1391,7 +1391,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
if (!copied)
TCP_SKB_CB(skb)->tcp_flags &= ~TCPHDR_PSH;
- tp->write_seq += copy;
+ WRITE_ONCE(tp->write_seq, tp->write_seq + copy);
TCP_SKB_CB(skb)->end_seq += copy;
tcp_skb_pcount_set(skb, 0);
@@ -1696,9 +1696,9 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
sk_eat_skb(sk, skb);
if (!desc->count)
break;
- tp->copied_seq = seq;
+ WRITE_ONCE(tp->copied_seq, seq);
}
- tp->copied_seq = seq;
+ WRITE_ONCE(tp->copied_seq, seq);
tcp_rcv_space_adjust(sk);
@@ -1835,7 +1835,7 @@ static int tcp_zerocopy_receive(struct sock *sk,
out:
up_read(¤t->mm->mmap_sem);
if (length) {
- tp->copied_seq = seq;
+ WRITE_ONCE(tp->copied_seq, seq);
tcp_rcv_space_adjust(sk);
/* Clean up data we have read: This will do ACK frames. */
@@ -2112,7 +2112,7 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
if (urg_offset < used) {
if (!urg_offset) {
if (!sock_flag(sk, SOCK_URGINLINE)) {
- ++*seq;
+ WRITE_ONCE(*seq, *seq + 1);
urg_hole++;
offset++;
used--;
@@ -2134,7 +2134,7 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
}
}
- *seq += used;
+ WRITE_ONCE(*seq, *seq + used);
copied += used;
len -= used;
@@ -2163,7 +2163,7 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
found_fin_ok:
/* Process the FIN. */
- ++*seq;
+ WRITE_ONCE(*seq, *seq + 1);
if (!(flags & MSG_PEEK))
sk_eat_skb(sk, skb);
break;
@@ -2556,6 +2556,7 @@ int tcp_disconnect(struct sock *sk, int flags)
struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
int old_state = sk->sk_state;
+ u32 seq;
if (old_state != TCP_CLOSE)
tcp_set_state(sk, TCP_CLOSE);
@@ -2578,7 +2579,7 @@ int tcp_disconnect(struct sock *sk, int flags)
tcp_clear_xmit_timers(sk);
__skb_queue_purge(&sk->sk_receive_queue);
- tp->copied_seq = tp->rcv_nxt;
+ WRITE_ONCE(tp->copied_seq, tp->rcv_nxt);
tp->urg_data = 0;
tcp_write_queue_purge(sk);
tcp_fastopen_active_disable_ofo_check(sk);
@@ -2593,9 +2594,12 @@ int tcp_disconnect(struct sock *sk, int flags)
sock_reset_flag(sk, SOCK_DONE);
tp->srtt_us = 0;
tp->rcv_rtt_last_tsecr = 0;
- tp->write_seq += tp->max_window + 2;
- if (tp->write_seq == 0)
- tp->write_seq = 1;
+
+ seq = tp->write_seq + tp->max_window + 2;
+ if (!seq)
+ seq = 1;
+ WRITE_ONCE(tp->write_seq, seq);
+
tp->snd_cwnd = 2;
icsk->icsk_probes_out = 0;
tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
@@ -2882,16 +2886,23 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
break;
case TCP_QUEUE_SEQ:
- if (sk->sk_state != TCP_CLOSE)
+ if (sk->sk_state != TCP_CLOSE) {
err = -EPERM;
- else if (tp->repair_queue == TCP_SEND_QUEUE)
- tp->write_seq = val;
- else if (tp->repair_queue == TCP_RECV_QUEUE) {
- WRITE_ONCE(tp->rcv_nxt, val);
- WRITE_ONCE(tp->copied_seq, val);
- }
- else
+ } else if (tp->repair_queue == TCP_SEND_QUEUE) {
+ if (!tcp_rtx_queue_empty(sk))
+ err = -EPERM;
+ else
+ WRITE_ONCE(tp->write_seq, val);
+ } else if (tp->repair_queue == TCP_RECV_QUEUE) {
+ if (tp->rcv_nxt != tp->copied_seq) {
+ err = -EPERM;
+ } else {
+ WRITE_ONCE(tp->rcv_nxt, val);
+ WRITE_ONCE(tp->copied_seq, val);
+ }
+ } else {
err = -EINVAL;
+ }
break;
case TCP_REPAIR_OPTIONS:
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index c9e97f304f98..2a46f9f81ba0 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -30,8 +30,9 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
} else if (sk->sk_type == SOCK_STREAM) {
const struct tcp_sock *tp = tcp_sk(sk);
- r->idiag_rqueue = max_t(int, READ_ONCE(tp->rcv_nxt) - tp->copied_seq, 0);
- r->idiag_wqueue = tp->write_seq - tp->snd_una;
+ r->idiag_rqueue = max_t(int, READ_ONCE(tp->rcv_nxt) -
+ READ_ONCE(tp->copied_seq), 0);
+ r->idiag_wqueue = READ_ONCE(tp->write_seq) - tp->snd_una;
}
if (info)
tcp_get_info(sk, info);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5ffc85c8952a..36bff9291530 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5889,7 +5889,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
/* Remember, tcp_poll() does not lock socket!
* Change state from SYN-SENT only after copied_seq
* is initialized. */
- tp->copied_seq = tp->rcv_nxt;
+ WRITE_ONCE(tp->copied_seq, tp->rcv_nxt);
smc_check_reset_syn(tp);
@@ -5964,7 +5964,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
}
WRITE_ONCE(tp->rcv_nxt, TCP_SKB_CB(skb)->seq + 1);
- tp->copied_seq = tp->rcv_nxt;
+ WRITE_ONCE(tp->copied_seq, tp->rcv_nxt);
tp->rcv_wup = TCP_SKB_CB(skb)->seq + 1;
/* RFC1323: The window in SYN & SYN/ACK segments is
@@ -6126,7 +6126,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
tcp_rearm_rto(sk);
} else {
tcp_init_transfer(sk, BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB);
- tp->copied_seq = tp->rcv_nxt;
+ WRITE_ONCE(tp->copied_seq, tp->rcv_nxt);
}
smp_mb();
tcp_set_state(sk, TCP_ESTABLISHED);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 7536f4c0bbf4..ac6135555e24 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -169,9 +169,11 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
* without appearing to create any others.
*/
if (likely(!tp->repair)) {
- tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
- if (tp->write_seq == 0)
- tp->write_seq = 1;
+ u32 seq = tcptw->tw_snd_nxt + 65535 + 2;
+
+ if (!seq)
+ seq = 1;
+ WRITE_ONCE(tp->write_seq, seq);
tp->rx_opt.ts_recent = tcptw->tw_ts_recent;
tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp;
}
@@ -258,7 +260,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
tp->rx_opt.ts_recent = 0;
tp->rx_opt.ts_recent_stamp = 0;
if (likely(!tp->repair))
- tp->write_seq = 0;
+ WRITE_ONCE(tp->write_seq, 0);
}
inet->inet_dport = usin->sin_port;
@@ -296,10 +298,11 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
if (likely(!tp->repair)) {
if (!tp->write_seq)
- tp->write_seq = secure_tcp_seq(inet->inet_saddr,
- inet->inet_daddr,
- inet->inet_sport,
- usin->sin_port);
+ WRITE_ONCE(tp->write_seq,
+ secure_tcp_seq(inet->inet_saddr,
+ inet->inet_daddr,
+ inet->inet_sport,
+ usin->sin_port));
tp->tsoffset = secure_tcp_ts_off(sock_net(sk),
inet->inet_saddr,
inet->inet_daddr);
@@ -2340,12 +2343,12 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i)
* we might find a transient negative value.
*/
rx_queue = max_t(int, READ_ONCE(tp->rcv_nxt) -
- tp->copied_seq, 0);
+ READ_ONCE(tp->copied_seq), 0);
seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
"%08X %5u %8d %lu %d %pK %lu %lu %u %u %d",
i, src, srcp, dest, destp, state,
- tp->write_seq - tp->snd_una,
+ READ_ONCE(tp->write_seq) - tp->snd_una,
rx_queue,
timer_active,
jiffies_delta_to_clock_t(timer_expires - jiffies),
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 7ba8a90772b0..9436fb9b6a3d 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -470,7 +470,7 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
seq = treq->rcv_isn + 1;
newtp->rcv_wup = seq;
- newtp->copied_seq = seq;
+ WRITE_ONCE(newtp->copied_seq, seq);
WRITE_ONCE(newtp->rcv_nxt, seq);
newtp->segs_in = 1;
@@ -510,7 +510,7 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
newtp->app_limited = ~0U;
tcp_init_xmit_timers(newsk);
- newtp->write_seq = newtp->pushed_seq = treq->snt_isn + 1;
+ WRITE_ONCE(newtp->write_seq, newtp->pushed_seq = treq->snt_isn + 1);
newtp->rx_opt.saw_tstamp = 0;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 3cfefec81975..9b74041e8dd1 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1175,7 +1175,7 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
struct tcp_sock *tp = tcp_sk(sk);
/* Advance write_seq and place onto the write_queue. */
- tp->write_seq = TCP_SKB_CB(skb)->end_seq;
+ WRITE_ONCE(tp->write_seq, TCP_SKB_CB(skb)->end_seq);
__skb_header_release(skb);
tcp_add_write_queue_tail(sk, skb);
sk->sk_wmem_queued += skb->truesize;
@@ -3381,7 +3381,7 @@ static void tcp_connect_init(struct sock *sk)
else
tp->rcv_tstamp = tcp_jiffies32;
tp->rcv_wup = tp->rcv_nxt;
- tp->copied_seq = tp->rcv_nxt;
+ WRITE_ONCE(tp->copied_seq, tp->rcv_nxt);
inet_csk(sk)->icsk_rto = tcp_timeout_init(sk);
inet_csk(sk)->icsk_retransmits = 0;
@@ -3397,7 +3397,7 @@ static void tcp_connect_queue_skb(struct sock *sk, struct sk_buff *skb)
__skb_header_release(skb);
sk->sk_wmem_queued += skb->truesize;
sk_mem_charge(sk, skb->truesize);
- tp->write_seq = tcb->end_seq;
+ WRITE_ONCE(tp->write_seq, tcb->end_seq);
tp->packets_out += tcp_skb_pcount(skb);
}
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index aa343654abfc..2d22d39952da 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -359,7 +359,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
struct sock *sk;
if (NAPI_GRO_CB(skb)->encap_mark ||
- (skb->ip_summed != CHECKSUM_PARTIAL &&
+ (uh->check && skb->ip_summed != CHECKSUM_PARTIAL &&
NAPI_GRO_CB(skb)->csum_cnt == 0 &&
!NAPI_GRO_CB(skb)->csum_valid))
goto out;
diff --git a/net/ipv6/calipso.c b/net/ipv6/calipso.c
index 70611784c071..afc76062e1a1 100644
--- a/net/ipv6/calipso.c
+++ b/net/ipv6/calipso.c
@@ -97,6 +97,9 @@ struct calipso_map_cache_entry {
static struct calipso_map_cache_bkt *calipso_cache;
+static void calipso_cache_invalidate(void);
+static void calipso_doi_putdef(struct calipso_doi *doi_def);
+
/* Label Mapping Cache Functions
*/
@@ -458,15 +461,10 @@ static int calipso_doi_remove(u32 doi, struct netlbl_audit *audit_info)
ret_val = -ENOENT;
goto doi_remove_return;
}
- if (!refcount_dec_and_test(&doi_def->refcount)) {
- spin_unlock(&calipso_doi_list_lock);
- ret_val = -EBUSY;
- goto doi_remove_return;
- }
list_del_rcu(&doi_def->list);
spin_unlock(&calipso_doi_list_lock);
- call_rcu(&doi_def->rcu, calipso_doi_free_rcu);
+ calipso_doi_putdef(doi_def);
ret_val = 0;
doi_remove_return:
@@ -522,10 +520,8 @@ static void calipso_doi_putdef(struct calipso_doi *doi_def)
if (!refcount_dec_and_test(&doi_def->refcount))
return;
- spin_lock(&calipso_doi_list_lock);
- list_del_rcu(&doi_def->list);
- spin_unlock(&calipso_doi_list_lock);
+ calipso_cache_invalidate();
call_rcu(&doi_def->rcu, calipso_doi_free_rcu);
}
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2e76ebfdc907..6e84f2eb08d6 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -206,7 +206,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
!ipv6_addr_equal(&sk->sk_v6_daddr, &usin->sin6_addr)) {
tp->rx_opt.ts_recent = 0;
tp->rx_opt.ts_recent_stamp = 0;
- tp->write_seq = 0;
+ WRITE_ONCE(tp->write_seq, 0);
}
sk->sk_v6_daddr = usin->sin6_addr;
@@ -304,10 +304,11 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (likely(!tp->repair)) {
if (!tp->write_seq)
- tp->write_seq = secure_tcpv6_seq(np->saddr.s6_addr32,
- sk->sk_v6_daddr.s6_addr32,
- inet->inet_sport,
- inet->inet_dport);
+ WRITE_ONCE(tp->write_seq,
+ secure_tcpv6_seq(np->saddr.s6_addr32,
+ sk->sk_v6_daddr.s6_addr32,
+ inet->inet_sport,
+ inet->inet_dport));
tp->tsoffset = secure_tcpv6_ts_off(sock_net(sk),
np->saddr.s6_addr32,
sk->sk_v6_daddr.s6_addr32);
@@ -1839,7 +1840,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
* we might find a transient negative value.
*/
rx_queue = max_t(int, READ_ONCE(tp->rcv_nxt) -
- tp->copied_seq, 0);
+ READ_ONCE(tp->copied_seq), 0);
seq_printf(seq,
"%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
@@ -1850,7 +1851,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
state,
- tp->write_seq - tp->snd_una,
+ READ_ONCE(tp->write_seq) - tp->snd_una,
rx_queue,
timer_active,
jiffies_delta_to_clock_t(timer_expires - jiffies),
diff --git a/net/mpls/mpls_gso.c b/net/mpls/mpls_gso.c
index b4da6d8e8632..2129856b5933 100644
--- a/net/mpls/mpls_gso.c
+++ b/net/mpls/mpls_gso.c
@@ -18,6 +18,7 @@
#include <linux/netdev_features.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
+#include <net/mpls.h>
static struct sk_buff *mpls_gso_segment(struct sk_buff *skb,
netdev_features_t features)
@@ -31,6 +32,8 @@ static struct sk_buff *mpls_gso_segment(struct sk_buff *skb,
skb_reset_network_header(skb);
mpls_hlen = skb_inner_network_header(skb) - skb_network_header(skb);
+ if (unlikely(!mpls_hlen || mpls_hlen % MPLS_HLEN))
+ goto out;
if (unlikely(!pskb_may_pull(skb, mpls_hlen)))
goto out;
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 6a7d0303d058..1314de5f317f 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -335,6 +335,7 @@ static int match_revfn(u8 af, const char *name, u8 revision, int *bestp)
const struct xt_match *m;
int have_rev = 0;
+ mutex_lock(&xt[af].mutex);
list_for_each_entry(m, &xt[af].match, list) {
if (strcmp(m->name, name) == 0) {
if (m->revision > *bestp)
@@ -343,6 +344,7 @@ static int match_revfn(u8 af, const char *name, u8 revision, int *bestp)
have_rev = 1;
}
}
+ mutex_unlock(&xt[af].mutex);
if (af != NFPROTO_UNSPEC && !have_rev)
return match_revfn(NFPROTO_UNSPEC, name, revision, bestp);
@@ -355,6 +357,7 @@ static int target_revfn(u8 af, const char *name, u8 revision, int *bestp)
const struct xt_target *t;
int have_rev = 0;
+ mutex_lock(&xt[af].mutex);
list_for_each_entry(t, &xt[af].target, list) {
if (strcmp(t->name, name) == 0) {
if (t->revision > *bestp)
@@ -363,6 +366,7 @@ static int target_revfn(u8 af, const char *name, u8 revision, int *bestp)
have_rev = 1;
}
}
+ mutex_unlock(&xt[af].mutex);
if (af != NFPROTO_UNSPEC && !have_rev)
return target_revfn(NFPROTO_UNSPEC, name, revision, bestp);
@@ -376,12 +380,10 @@ int xt_find_revision(u8 af, const char *name, u8 revision, int target,
{
int have_rev, best = -1;
- mutex_lock(&xt[af].mutex);
if (target == 1)
have_rev = target_revfn(af, name, revision, &best);
else
have_rev = match_revfn(af, name, revision, &best);
- mutex_unlock(&xt[af].mutex);
/* Nothing at all? Return 0 to try loading module. */
if (best == -1) {
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index 9aacf2da3d98..3e3494c8d42f 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -581,6 +581,7 @@ static int netlbl_cipsov4_list(struct sk_buff *skb, struct genl_info *info)
break;
}
+ cipso_v4_doi_putdef(doi_def);
rcu_read_unlock();
genlmsg_end(ans_skb, data);
@@ -589,12 +590,14 @@ static int netlbl_cipsov4_list(struct sk_buff *skb, struct genl_info *info)
list_retry:
/* XXX - this limit is a guesstimate */
if (nlsze_mult < 4) {
+ cipso_v4_doi_putdef(doi_def);
rcu_read_unlock();
kfree_skb(ans_skb);
nlsze_mult *= 2;
goto list_start;
}
list_failure_lock:
+ cipso_v4_doi_putdef(doi_def);
rcu_read_unlock();
list_failure:
kfree_skb(ans_skb);
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 69cf9cbbb05f..8f3e1f0a1781 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -797,8 +797,10 @@ static int qrtr_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
plen = (len + 3) & ~3;
skb = sock_alloc_send_skb(sk, plen + QRTR_HDR_MAX_SIZE,
msg->msg_flags & MSG_DONTWAIT, &rc);
- if (!skb)
+ if (!skb) {
+ rc = -ENOMEM;
goto out_node;
+ }
skb_reserve(skb, QRTR_HDR_MAX_SIZE);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index ed065c3432e5..1f12be9f0207 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -2048,7 +2048,7 @@ static int tc_dump_tclass_qdisc(struct Qdisc *q, struct sk_buff *skb,
static int tc_dump_tclass_root(struct Qdisc *root, struct sk_buff *skb,
struct tcmsg *tcm, struct netlink_callback *cb,
- int *t_p, int s_t)
+ int *t_p, int s_t, bool recur)
{
struct Qdisc *q;
int b;
@@ -2059,7 +2059,7 @@ static int tc_dump_tclass_root(struct Qdisc *root, struct sk_buff *skb,
if (tc_dump_tclass_qdisc(root, skb, tcm, cb, t_p, s_t) < 0)
return -1;
- if (!qdisc_dev(root))
+ if (!qdisc_dev(root) || !recur)
return 0;
if (tcm->tcm_parent) {
@@ -2094,13 +2094,13 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
s_t = cb->args[0];
t = 0;
- if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t) < 0)
+ if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t, true) < 0)
goto done;
dev_queue = dev_ingress_queue(dev);
if (dev_queue &&
tc_dump_tclass_root(dev_queue->qdisc_sleeping, skb, tcm, cb,
- &t, s_t) < 0)
+ &t, s_t, false) < 0)
goto done;
done:
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 3b0dcf38fd8b..d3e61dcc6129 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -401,7 +401,7 @@ static uint32_t (*w2)(uint16_t);
static int
is_mcounted_section_name(char const *const txtname)
{
- return strcmp(".text", txtname) == 0 ||
+ return strncmp(".text", txtname, 5) == 0 ||
strcmp(".init.text", txtname) == 0 ||
strcmp(".ref.text", txtname) == 0 ||
strcmp(".sched.text", txtname) == 0 ||
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 7f6f96256b09..9a8fe8ea6b03 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -142,6 +142,11 @@ my %text_sections = (
".text.unlikely" => 1,
);
+# Acceptable section-prefixes to record.
+my %text_section_prefixes = (
+ ".text." => 1,
+);
+
# Note: we are nice to C-programmers here, thus we skip the '||='-idiom.
$objdump = 'objdump' if (!$objdump);
$objcopy = 'objcopy' if (!$objcopy);
@@ -523,6 +528,14 @@ while (<IN>) {
# Only record text sections that we know are safe
$read_function = defined($text_sections{$1});
+ if (!$read_function) {
+ foreach my $prefix (keys %text_section_prefixes) {
+ if (substr($1, 0, length $prefix) eq $prefix) {
+ $read_function = 1;
+ last;
+ }
+ }
+ }
# print out any recorded offsets
update_funcs();
diff --git a/security/commoncap.c b/security/commoncap.c
index 1bc40e78fa7f..a1dee0ab345a 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -506,8 +506,7 @@ int cap_convert_nscap(struct dentry *dentry, void **ivalue, size_t size)
__u32 magic, nsmagic;
struct inode *inode = d_backing_inode(dentry);
struct user_namespace *task_ns = current_user_ns(),
- *fs_ns = inode->i_sb->s_user_ns,
- *ancestor;
+ *fs_ns = inode->i_sb->s_user_ns;
kuid_t rootid;
size_t newsize;
@@ -530,15 +529,6 @@ int cap_convert_nscap(struct dentry *dentry, void **ivalue, size_t size)
if (nsrootid == -1)
return -EINVAL;
- /*
- * Do not allow allow adding a v3 filesystem capability xattr
- * if the rootid field is ambiguous.
- */
- for (ancestor = task_ns->parent; ancestor; ancestor = ancestor->parent) {
- if (from_kuid(ancestor, rootid) == 0)
- return -EINVAL;
- }
-
newsize = sizeof(struct vfs_ns_cap_data);
nscap = kmalloc(newsize, GFP_ATOMIC);
if (!nscap)
diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c
index c175b2cf63f7..66010d0774b4 100644
--- a/sound/pci/hda/hda_bind.c
+++ b/sound/pci/hda/hda_bind.c
@@ -46,6 +46,10 @@ static void hda_codec_unsol_event(struct hdac_device *dev, unsigned int ev)
if (codec->bus->shutdown)
return;
+ /* ignore unsol events during system suspend/resume */
+ if (codec->core.dev.power.power_state.event != PM_EVENT_ON)
+ return;
+
if (codec->patch_ops.unsol_event)
codec->patch_ops.unsol_event(codec, ev);
}
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 8198d2e53b7d..0c5d41e5d146 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -624,13 +624,6 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
20,
178000000);
- /* by some reason, the playback stream stalls on PulseAudio with
- * tsched=1 when a capture stream triggers. Until we figure out the
- * real cause, disable tsched mode by telling the PCM info flag.
- */
- if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND)
- runtime->hw.info |= SNDRV_PCM_INFO_BATCH;
-
if (chip->align_buffer_size)
/* constrain buffer sizes to be multiple of 128
bytes. This is more efficient in terms of memory
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index f86b9b0a0607..d21a4eb1ca49 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2326,6 +2326,18 @@ static void generic_hdmi_free(struct hda_codec *codec)
}
#ifdef CONFIG_PM
+static int generic_hdmi_suspend(struct hda_codec *codec)
+{
+ struct hdmi_spec *spec = codec->spec;
+ int pin_idx;
+
+ for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+ struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+ cancel_delayed_work_sync(&per_pin->work);
+ }
+ return 0;
+}
+
static int generic_hdmi_resume(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
@@ -2349,6 +2361,7 @@ static const struct hda_codec_ops generic_hdmi_patch_ops = {
.build_controls = generic_hdmi_build_controls,
.unsol_event = hdmi_unsol_event,
#ifdef CONFIG_PM
+ .suspend = generic_hdmi_suspend,
.resume = generic_hdmi_resume,
#endif
};
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index d52ab6d49d18..f08da98d0192 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1186,6 +1186,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */
+ case USB_ID(0x413c, 0xa506): /* Dell AE515 sound bar */
return true;
}
@@ -1338,6 +1339,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
&& (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
msleep(20);
+ /*
+ * Plantronics headsets (C320, C320-M, etc) need a delay to avoid
+ * random microhpone failures.
+ */
+ if (USB_ID_VENDOR(chip->usb_id) == 0x047f &&
+ (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+ msleep(20);
+
/* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950),
* Jabra 550a, Kingston HyperX needs a tiny delay here,
* otherwise requests like get/set frequency return
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 5eb1b2469bba..12324325ea0b 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -381,6 +381,7 @@ static int read_saved_cmdline(struct tep_handle *pevent)
pr_debug("error reading saved cmdlines\n");
goto out;
}
+ buf[ret] = '\0';
parse_saved_cmdline(pevent, buf, size);
ret = 0;
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
index 197e769c2ed1..f8cda822c1ce 100755
--- a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
@@ -86,11 +86,20 @@ test_ip6gretap()
test_gretap_stp()
{
+ # Sometimes after mirror installation, the neighbor's state is not valid.
+ # The reason is that there is no SW datapath activity related to the
+ # neighbor for the remote GRE address. Therefore whether the corresponding
+ # neighbor will be valid is a matter of luck, and the test is thus racy.
+ # Set the neighbor's state to permanent, so it would be always valid.
+ ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
+ nud permanent dev br2
full_test_span_gre_stp gt4 $swp3.555 "mirror to gretap"
}
test_ip6gretap_stp()
{
+ ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
+ nud permanent dev br2
full_test_span_gre_stp gt6 $swp3.555 "mirror to ip6gretap"
}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 787f7329d1b7..11103b75c596 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -2080,7 +2080,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
* Prevent userspace from creating a memory region outside of the IPA
* space addressable by the KVM guest IPA space.
*/
- if (memslot->base_gfn + memslot->npages >=
+ if (memslot->base_gfn + memslot->npages >
(KVM_PHYS_SIZE >> PAGE_SHIFT))
return -EFAULT;
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