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SubjectRe: Linux 4.19.28
diff --git a/Makefile b/Makefile
index 70ed9a53558a..c6ac023ba33a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 27
+SUBLEVEL = 28
EXTRAVERSION =
NAME = "People's Front"

diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index ba150c755fcc..85b6c60f285d 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -52,6 +52,7 @@ asmlinkage void spurious_interrupt(void)
void __init init_IRQ(void)
{
int i;
+ unsigned int order = get_order(IRQ_STACK_SIZE);

for (i = 0; i < NR_IRQS; i++)
irq_set_noprobe(i);
@@ -62,8 +63,7 @@ void __init init_IRQ(void)
arch_init_irq();

for_each_possible_cpu(i) {
- int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE;
- void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages);
+ void *s = (void *)__get_free_pages(GFP_KERNEL, order);

irq_stack[i] = s;
pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i,
diff --git a/arch/x86/boot/compressed/pgtable_64.c b/arch/x86/boot/compressed/pgtable_64.c
index 9e2157371491..f8debf7aeb4c 100644
--- a/arch/x86/boot/compressed/pgtable_64.c
+++ b/arch/x86/boot/compressed/pgtable_64.c
@@ -1,5 +1,7 @@
+#include <linux/efi.h>
#include <asm/e820/types.h>
#include <asm/processor.h>
+#include <asm/efi.h>
#include "pgtable.h"
#include "../string.h"

@@ -37,9 +39,10 @@ int cmdline_find_option_bool(const char *option);

static unsigned long find_trampoline_placement(void)
{
- unsigned long bios_start, ebda_start;
+ unsigned long bios_start = 0, ebda_start = 0;
unsigned long trampoline_start;
struct boot_e820_entry *entry;
+ char *signature;
int i;

/*
@@ -47,8 +50,18 @@ static unsigned long find_trampoline_placement(void)
* This code is based on reserve_bios_regions().
*/

- ebda_start = *(unsigned short *)0x40e << 4;
- bios_start = *(unsigned short *)0x413 << 10;
+ /*
+ * EFI systems may not provide legacy ROM. The memory may not be mapped
+ * at all.
+ *
+ * Only look for values in the legacy ROM for non-EFI system.
+ */
+ signature = (char *)&boot_params->efi_info.efi_loader_signature;
+ if (strncmp(signature, EFI32_LOADER_SIGNATURE, 4) &&
+ strncmp(signature, EFI64_LOADER_SIGNATURE, 4)) {
+ ebda_start = *(unsigned short *)0x40e << 4;
+ bios_start = *(unsigned short *)0x413 << 10;
+ }

if (bios_start < BIOS_START_MIN || bios_start > BIOS_START_MAX)
bios_start = BIOS_START_MAX;
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index eeea634bee0a..6a25278e0092 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -818,11 +818,9 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
static void init_amd_zn(struct cpuinfo_x86 *c)
{
set_cpu_cap(c, X86_FEATURE_ZEN);
- /*
- * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
- * all up to and including B1.
- */
- if (c->x86_model <= 1 && c->x86_stepping <= 1)
+
+ /* Fix erratum 1076: CPB feature bit not being set in CPUID. */
+ if (!cpu_has(c, X86_FEATURE_CPB))
set_cpu_cap(c, X86_FEATURE_CPB);
}

diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 4bb68133a72a..5a0e0bd68b76 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -320,8 +320,8 @@ unsigned long get_wchan(struct task_struct *p)

/* Stack layout: sp-4: ra, sp-3: sp' */

- pc = MAKE_PC_FROM_RA(*(unsigned long*)sp - 4, sp);
- sp = *(unsigned long *)sp - 3;
+ pc = MAKE_PC_FROM_RA(SPILL_SLOT(sp, 0), sp);
+ sp = SPILL_SLOT(sp, 1);
} while (count++ < 16);
return 0;
}
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 7f9ea8e4c1b2..1342f8e6025c 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -544,10 +544,9 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
hdev->bus);

if (!btrtl_dev->ic_info) {
- rtl_dev_err(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
+ rtl_dev_info(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
lmp_subver, hci_rev, hci_ver);
- ret = -EINVAL;
- goto err_free;
+ return btrtl_dev;
}

if (btrtl_dev->ic_info->has_rom_version) {
@@ -602,6 +601,11 @@ int btrtl_download_firmware(struct hci_dev *hdev,
* standard btusb. Once that firmware is uploaded, the subver changes
* to a different value.
*/
+ if (!btrtl_dev->ic_info) {
+ rtl_dev_info(hdev, "rtl: assuming no firmware upload needed\n");
+ return 0;
+ }
+
switch (btrtl_dev->ic_info->lmp_subver) {
case RTL_ROM_LMP_8723A:
case RTL_ROM_LMP_3499:
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index c0a5b1f3a986..4ccc39e00ced 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -32,6 +32,7 @@
#include <linux/wait.h>
#include <linux/init.h>
#include <linux/fs.h>
+#include <linux/nospec.h>

#include <asm/io.h>
#include <linux/uaccess.h>
@@ -386,7 +387,11 @@ static ssize_t ac_write(struct file *file, const char __user *buf, size_t count,
TicCard = st_loc.tic_des_from_pc; /* tic number to send */
IndexCard = NumCard - 1;

- if((NumCard < 1) || (NumCard > MAX_BOARD) || !apbs[IndexCard].RamIO)
+ if (IndexCard >= MAX_BOARD)
+ return -EINVAL;
+ IndexCard = array_index_nospec(IndexCard, MAX_BOARD);
+
+ if (!apbs[IndexCard].RamIO)
return -EINVAL;

#ifdef DEBUG
@@ -697,6 +702,7 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
unsigned char IndexCard;
void __iomem *pmem;
int ret = 0;
+ static int warncount = 10;
volatile unsigned char byte_reset_it;
struct st_ram_io *adgl;
void __user *argp = (void __user *)arg;
@@ -711,16 +717,12 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
mutex_lock(&ac_mutex);
IndexCard = adgl->num_card-1;

- if(cmd != 6 && ((IndexCard >= MAX_BOARD) || !apbs[IndexCard].RamIO)) {
- static int warncount = 10;
- if (warncount) {
- printk( KERN_WARNING "APPLICOM driver IOCTL, bad board number %d\n",(int)IndexCard+1);
- warncount--;
- }
- kfree(adgl);
- mutex_unlock(&ac_mutex);
- return -EINVAL;
- }
+ if (cmd != 6 && IndexCard >= MAX_BOARD)
+ goto err;
+ IndexCard = array_index_nospec(IndexCard, MAX_BOARD);
+
+ if (cmd != 6 && !apbs[IndexCard].RamIO)
+ goto err;

switch (cmd) {

@@ -838,5 +840,16 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
kfree(adgl);
mutex_unlock(&ac_mutex);
return 0;
+
+err:
+ if (warncount) {
+ pr_warn("APPLICOM driver IOCTL, bad board number %d\n",
+ (int)IndexCard + 1);
+ warncount--;
+ }
+ kfree(adgl);
+ mutex_unlock(&ac_mutex);
+ return -EINVAL;
+
}

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index b100260b6ed2..505c9a55d555 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -545,13 +545,13 @@ EXPORT_SYMBOL_GPL(cpufreq_policy_transition_delay_us);
* SYSFS INTERFACE *
*********************************************************************/
static ssize_t show_boost(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%d\n", cpufreq_driver->boost_enabled);
}

-static ssize_t store_boost(struct kobject *kobj, struct attribute *attr,
- const char *buf, size_t count)
+static ssize_t store_boost(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
{
int ret, enable;

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index b6a1aadaff9f..a005711f909e 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -833,7 +833,7 @@ static void intel_pstate_update_policies(void)
/************************** sysfs begin ************************/
#define show_one(file_name, object) \
static ssize_t show_##file_name \
- (struct kobject *kobj, struct attribute *attr, char *buf) \
+ (struct kobject *kobj, struct kobj_attribute *attr, char *buf) \
{ \
return sprintf(buf, "%u\n", global.object); \
}
@@ -842,7 +842,7 @@ static ssize_t intel_pstate_show_status(char *buf);
static int intel_pstate_update_status(const char *buf, size_t size);

static ssize_t show_status(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
ssize_t ret;

@@ -853,7 +853,7 @@ static ssize_t show_status(struct kobject *kobj,
return ret;
}

-static ssize_t store_status(struct kobject *a, struct attribute *b,
+static ssize_t store_status(struct kobject *a, struct kobj_attribute *b,
const char *buf, size_t count)
{
char *p = memchr(buf, '\n', count);
@@ -867,7 +867,7 @@ static ssize_t store_status(struct kobject *a, struct attribute *b,
}

static ssize_t show_turbo_pct(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
struct cpudata *cpu;
int total, no_turbo, turbo_pct;
@@ -893,7 +893,7 @@ static ssize_t show_turbo_pct(struct kobject *kobj,
}

static ssize_t show_num_pstates(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
struct cpudata *cpu;
int total;
@@ -914,7 +914,7 @@ static ssize_t show_num_pstates(struct kobject *kobj,
}

static ssize_t show_no_turbo(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
ssize_t ret;

@@ -936,7 +936,7 @@ static ssize_t show_no_turbo(struct kobject *kobj,
return ret;
}

-static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
+static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
const char *buf, size_t count)
{
unsigned int input;
@@ -983,7 +983,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
return count;
}

-static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
+static ssize_t store_max_perf_pct(struct kobject *a, struct kobj_attribute *b,
const char *buf, size_t count)
{
unsigned int input;
@@ -1013,7 +1013,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
return count;
}

-static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
+static ssize_t store_min_perf_pct(struct kobject *a, struct kobj_attribute *b,
const char *buf, size_t count)
{
unsigned int input;
@@ -1045,12 +1045,13 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
}

static ssize_t show_hwp_dynamic_boost(struct kobject *kobj,
- struct attribute *attr, char *buf)
+ struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%u\n", hwp_boost);
}

-static ssize_t store_hwp_dynamic_boost(struct kobject *a, struct attribute *b,
+static ssize_t store_hwp_dynamic_boost(struct kobject *a,
+ struct kobj_attribute *b,
const char *buf, size_t count)
{
unsigned int input;
diff --git a/drivers/gnss/sirf.c b/drivers/gnss/sirf.c
index 2c22836d3ffd..4596fde16dfe 100644
--- a/drivers/gnss/sirf.c
+++ b/drivers/gnss/sirf.c
@@ -310,30 +310,26 @@ static int sirf_probe(struct serdev_device *serdev)
ret = -ENODEV;
goto err_put_device;
}
+
+ ret = regulator_enable(data->vcc);
+ if (ret)
+ goto err_put_device;
+
+ /* Wait for chip to boot into hibernate mode. */
+ msleep(SIRF_BOOT_DELAY);
}

if (data->wakeup) {
ret = gpiod_to_irq(data->wakeup);
if (ret < 0)
- goto err_put_device;
-
+ goto err_disable_vcc;
data->irq = ret;

- ret = devm_request_threaded_irq(dev, data->irq, NULL,
- sirf_wakeup_handler,
+ ret = request_threaded_irq(data->irq, NULL, sirf_wakeup_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"wakeup", data);
if (ret)
- goto err_put_device;
- }
-
- if (data->on_off) {
- ret = regulator_enable(data->vcc);
- if (ret)
- goto err_put_device;
-
- /* Wait for chip to boot into hibernate mode */
- msleep(SIRF_BOOT_DELAY);
+ goto err_disable_vcc;
}

if (IS_ENABLED(CONFIG_PM)) {
@@ -342,7 +338,7 @@ static int sirf_probe(struct serdev_device *serdev)
} else {
ret = sirf_runtime_resume(dev);
if (ret < 0)
- goto err_disable_vcc;
+ goto err_free_irq;
}

ret = gnss_register_device(gdev);
@@ -356,6 +352,9 @@ static int sirf_probe(struct serdev_device *serdev)
pm_runtime_disable(dev);
else
sirf_runtime_suspend(dev);
+err_free_irq:
+ if (data->wakeup)
+ free_irq(data->irq, data);
err_disable_vcc:
if (data->on_off)
regulator_disable(data->vcc);
@@ -376,6 +375,9 @@ static void sirf_remove(struct serdev_device *serdev)
else
sirf_runtime_suspend(&serdev->dev);

+ if (data->wakeup)
+ free_irq(data->irq, data);
+
if (data->on_off)
regulator_disable(data->vcc);

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 9f697a5b8e3d..c078c791f481 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -884,7 +884,7 @@ static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_chip *chip,
default:
return U64_MAX;
}
- value = (((u64)high) << 16) | low;
+ value = (((u64)high) << 32) | low;
return value;
}

@@ -3070,7 +3070,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
.port_link_state = mv88e6352_port_link_state,
.port_get_cmode = mv88e6185_port_get_cmode,
- .stats_snapshot = mv88e6320_g1_stats_snapshot,
+ .stats_snapshot = mv88e6xxx_g1_stats_snapshot,
.stats_set_histogram = mv88e6095_g1_stats_set_histogram,
.stats_get_sset_count = mv88e6095_stats_get_sset_count,
.stats_get_strings = mv88e6095_stats_get_strings,
@@ -4188,7 +4188,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6190",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.num_gpio = 16,
.max_vid = 8191,
.port_base_addr = 0x0,
@@ -4211,7 +4211,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6190X",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.num_gpio = 16,
.max_vid = 8191,
.port_base_addr = 0x0,
@@ -4234,7 +4234,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6191",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.max_vid = 8191,
.port_base_addr = 0x0,
.phy_base_addr = 0x0,
@@ -4281,7 +4281,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6290",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.num_gpio = 16,
.max_vid = 8191,
.port_base_addr = 0x0,
@@ -4443,7 +4443,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6390",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.num_gpio = 16,
.max_vid = 8191,
.port_base_addr = 0x0,
@@ -4466,7 +4466,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
.name = "Marvell 88E6390X",
.num_databases = 4096,
.num_ports = 11, /* 10 + Z80 */
- .num_internal_phys = 11,
+ .num_internal_phys = 9,
.num_gpio = 16,
.max_vid = 8191,
.port_base_addr = 0x0,
@@ -4561,6 +4561,14 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
return 0;
}

+static void mv88e6xxx_ports_cmode_init(struct mv88e6xxx_chip *chip)
+{
+ int i;
+
+ for (i = 0; i < mv88e6xxx_num_ports(chip); i++)
+ chip->ports[i].cmode = MV88E6XXX_PORT_STS_CMODE_INVALID;
+}
+
static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds,
int port)
{
@@ -4597,6 +4605,8 @@ static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
if (err)
goto free;

+ mv88e6xxx_ports_cmode_init(chip);
+
mutex_lock(&chip->reg_lock);
err = mv88e6xxx_switch_reset(chip);
mutex_unlock(&chip->reg_lock);
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 92945841c8e8..7fffce734f0a 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -190,7 +190,7 @@ int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup)
/* normal duplex detection */
break;
default:
- return -EINVAL;
+ return -EOPNOTSUPP;
}

err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_MAC_CTL, reg);
@@ -374,6 +374,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
cmode = 0;
}

+ /* cmode doesn't change, nothing to do for us */
+ if (cmode == chip->ports[port].cmode)
+ return 0;
+
lane = mv88e6390x_serdes_get_lane(chip, port);
if (lane < 0)
return lane;
@@ -384,7 +388,7 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
return err;
}

- err = mv88e6390_serdes_power(chip, port, false);
+ err = mv88e6390x_serdes_power(chip, port, false);
if (err)
return err;

@@ -400,7 +404,7 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
if (err)
return err;

- err = mv88e6390_serdes_power(chip, port, true);
+ err = mv88e6390x_serdes_power(chip, port, true);
if (err)
return err;

diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index b31910023bb6..95b59f5eb393 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -52,6 +52,7 @@
#define MV88E6185_PORT_STS_CMODE_1000BASE_X 0x0005
#define MV88E6185_PORT_STS_CMODE_PHY 0x0006
#define MV88E6185_PORT_STS_CMODE_DISABLED 0x0007
+#define MV88E6XXX_PORT_STS_CMODE_INVALID 0xff

/* Offset 0x01: MAC (or PCS or Physical) Control Register */
#define MV88E6XXX_PORT_MAC_CTL 0x01
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 034f57500f00..1fdaf86bbe8f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -463,6 +463,12 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
}

length >>= 9;
+ if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) {
+ dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n",
+ skb->len);
+ i = 0;
+ goto tx_dma_error;
+ }
flags |= bnxt_lhint_arr[length];
txbd->tx_bd_len_flags_type = cpu_to_le32(flags);

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index ae2f35039343..1485f66cf7b0 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -46,6 +46,7 @@
#include <linux/mii.h>
#include <linux/of_device.h>
#include <linux/of_net.h>
+#include <linux/dmi.h>

#include <asm/irq.h>

@@ -93,7 +94,7 @@ static int copybreak __read_mostly = 128;
module_param(copybreak, int, 0);
MODULE_PARM_DESC(copybreak, "Receive copy threshold");

-static int disable_msi = 0;
+static int disable_msi = -1;
module_param(disable_msi, int, 0);
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");

@@ -4931,6 +4932,24 @@ static const char *sky2_name(u8 chipid, char *buf, int sz)
return buf;
}

+static const struct dmi_system_id msi_blacklist[] = {
+ {
+ .ident = "Dell Inspiron 1545",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1545"),
+ },
+ },
+ {
+ .ident = "Gateway P-79",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P-79"),
+ },
+ },
+ {}
+};
+
static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *dev, *dev1;
@@ -5042,6 +5061,9 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_free_pci;
}

+ if (disable_msi == -1)
+ disable_msi = !!dmi_check_system(msi_blacklist);
+
if (!disable_msi && pci_enable_msi(pdev) == 0) {
err = sky2_test_msi(hw);
if (err) {
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 42f5bfa33694..de5a6abda7e3 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1403,7 +1403,8 @@ static int lan743x_tx_frame_start(struct lan743x_tx *tx,
}

static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx,
- unsigned int frame_length)
+ unsigned int frame_length,
+ int nr_frags)
{
/* called only from within lan743x_tx_xmit_frame.
* assuming tx->ring_lock has already been acquired.
@@ -1413,6 +1414,10 @@ static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx,

/* wrap up previous descriptor */
tx->frame_data0 |= TX_DESC_DATA0_EXT_;
+ if (nr_frags <= 0) {
+ tx->frame_data0 |= TX_DESC_DATA0_LS_;
+ tx->frame_data0 |= TX_DESC_DATA0_IOC_;
+ }
tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail];
tx_descriptor->data0 = tx->frame_data0;

@@ -1517,8 +1522,11 @@ static void lan743x_tx_frame_end(struct lan743x_tx *tx,
u32 tx_tail_flags = 0;

/* wrap up previous descriptor */
- tx->frame_data0 |= TX_DESC_DATA0_LS_;
- tx->frame_data0 |= TX_DESC_DATA0_IOC_;
+ if ((tx->frame_data0 & TX_DESC_DATA0_DTYPE_MASK_) ==
+ TX_DESC_DATA0_DTYPE_DATA_) {
+ tx->frame_data0 |= TX_DESC_DATA0_LS_;
+ tx->frame_data0 |= TX_DESC_DATA0_IOC_;
+ }

tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail];
buffer_info = &tx->buffer_info[tx->frame_tail];
@@ -1603,7 +1611,7 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx,
}

if (gso)
- lan743x_tx_frame_add_lso(tx, frame_length);
+ lan743x_tx_frame_add_lso(tx, frame_length, nr_frags);

if (nr_frags <= 0)
goto finish;
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 01711e6e9a39..e1427b56a073 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -636,15 +636,20 @@ static int geneve_sock_add(struct geneve_dev *geneve, bool ipv6)
static int geneve_open(struct net_device *dev)
{
struct geneve_dev *geneve = netdev_priv(dev);
- bool ipv6 = !!(geneve->info.mode & IP_TUNNEL_INFO_IPV6);
bool metadata = geneve->collect_md;
+ bool ipv4, ipv6;
int ret = 0;

+ ipv6 = geneve->info.mode & IP_TUNNEL_INFO_IPV6 || metadata;
+ ipv4 = !ipv6 || metadata;
#if IS_ENABLED(CONFIG_IPV6)
- if (ipv6 || metadata)
+ if (ipv6) {
ret = geneve_sock_add(geneve, true);
+ if (ret < 0 && ret != -EAFNOSUPPORT)
+ ipv4 = false;
+ }
#endif
- if (!ret && (!ipv6 || metadata))
+ if (ipv4)
ret = geneve_sock_add(geneve, false);
if (ret < 0)
geneve_sock_release(geneve);
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index c9e2a986ccb7..c8320405c8f1 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -743,6 +743,14 @@ void netvsc_linkstatus_callback(struct net_device *net,
schedule_delayed_work(&ndev_ctx->dwork, 0);
}

+static void netvsc_comp_ipcsum(struct sk_buff *skb)
+{
+ struct iphdr *iph = (struct iphdr *)skb->data;
+
+ iph->check = 0;
+ iph->check = ip_fast_csum(iph, iph->ihl);
+}
+
static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net,
struct napi_struct *napi,
const struct ndis_tcp_ip_checksum_info *csum_info,
@@ -766,9 +774,17 @@ static struct sk_buff *netvsc_alloc_recv_skb(struct net_device *net,
/* skb is already created with CHECKSUM_NONE */
skb_checksum_none_assert(skb);

- /*
- * In Linux, the IP checksum is always checked.
- * Do L4 checksum offload if enabled and present.
+ /* Incoming packets may have IP header checksum verified by the host.
+ * They may not have IP header checksum computed after coalescing.
+ * We compute it here if the flags are set, because on Linux, the IP
+ * checksum is always checked.
+ */
+ if (csum_info && csum_info->receive.ip_checksum_value_invalid &&
+ csum_info->receive.ip_checksum_succeeded &&
+ skb->protocol == htons(ETH_P_IP))
+ netvsc_comp_ipcsum(skb);
+
+ /* Do L4 checksum offload if enabled and present.
*/
if (csum_info && (net->features & NETIF_F_RXCSUM)) {
if (csum_info->receive.tcp_checksum_succeeded ||
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 3db06b40580d..05a6ae32ff65 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -339,6 +339,17 @@ static int ksz8041_config_aneg(struct phy_device *phydev)
return genphy_config_aneg(phydev);
}

+static int ksz8061_config_init(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_DEVID1, 0xB61A);
+ if (ret)
+ return ret;
+
+ return kszphy_config_init(phydev);
+}
+
static int ksz9021_load_values_from_of(struct phy_device *phydev,
const struct device_node *of_node,
u16 reg,
@@ -934,7 +945,7 @@ static struct phy_driver ksphy_driver[] = {
.phy_id_mask = MICREL_PHY_ID_MASK,
.features = PHY_BASIC_FEATURES,
.flags = PHY_HAS_INTERRUPT,
- .config_init = kszphy_config_init,
+ .config_init = ksz8061_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
.suspend = genphy_suspend,
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 2787e8b1d668..f6e70f2dfd12 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -348,6 +348,10 @@ static int phylink_get_mac_state(struct phylink *pl, struct phylink_link_state *
linkmode_zero(state->lp_advertising);
state->interface = pl->link_config.interface;
state->an_enabled = pl->link_config.an_enabled;
+ state->speed = SPEED_UNKNOWN;
+ state->duplex = DUPLEX_UNKNOWN;
+ state->pause = MLO_PAUSE_NONE;
+ state->an_complete = 0;
state->link = 1;

return pl->ops->mac_link_state(ndev, state);
diff --git a/drivers/net/team/team_mode_loadbalance.c b/drivers/net/team/team_mode_loadbalance.c
index a5ef97010eb3..5541e1c19936 100644
--- a/drivers/net/team/team_mode_loadbalance.c
+++ b/drivers/net/team/team_mode_loadbalance.c
@@ -325,6 +325,20 @@ static int lb_bpf_func_set(struct team *team, struct team_gsetter_ctx *ctx)
return 0;
}

+static void lb_bpf_func_free(struct team *team)
+{
+ struct lb_priv *lb_priv = get_lb_priv(team);
+ struct bpf_prog *fp;
+
+ if (!lb_priv->ex->orig_fprog)
+ return;
+
+ __fprog_destroy(lb_priv->ex->orig_fprog);
+ fp = rcu_dereference_protected(lb_priv->fp,
+ lockdep_is_held(&team->lock));
+ bpf_prog_destroy(fp);
+}
+
static int lb_tx_method_get(struct team *team, struct team_gsetter_ctx *ctx)
{
struct lb_priv *lb_priv = get_lb_priv(team);
@@ -639,6 +653,7 @@ static void lb_exit(struct team *team)

team_options_unregister(team, lb_options,
ARRAY_SIZE(lb_options));
+ lb_bpf_func_free(team);
cancel_delayed_work_sync(&lb_priv->ex->stats.refresh_dw);
free_percpu(lb_priv->pcpu_stats);
kfree(lb_priv->ex);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 65844f28db30..f3293355c784 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -2122,9 +2122,9 @@ static void *tun_ring_recv(struct tun_file *tfile, int noblock, int *err)
}

add_wait_queue(&tfile->wq.wait, &wait);
- current->state = TASK_INTERRUPTIBLE;

while (1) {
+ set_current_state(TASK_INTERRUPTIBLE);
ptr = ptr_ring_consume(&tfile->tx_ring);
if (ptr)
break;
@@ -2140,7 +2140,7 @@ static void *tun_ring_recv(struct tun_file *tfile, int noblock, int *err)
schedule();
}

- current->state = TASK_RUNNING;
+ __set_current_state(TASK_RUNNING);
remove_wait_queue(&tfile->wq.wait, &wait);

out:
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 735ad838e2ba..6e381354f658 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -976,6 +976,13 @@ static const struct usb_device_id products[] = {
0xff),
.driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr,
},
+ { /* Quectel EG12/EM12 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x0512,
+ USB_CLASS_VENDOR_SPEC,
+ USB_SUBCLASS_VENDOR_SPEC,
+ 0xff),
+ .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr,
+ },

/* 3. Combined interface devices matching on interface number */
{QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
@@ -1343,17 +1350,20 @@ static bool quectel_ec20_detected(struct usb_interface *intf)
return false;
}

-static bool quectel_ep06_diag_detected(struct usb_interface *intf)
+static bool quectel_diag_detected(struct usb_interface *intf)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_interface_descriptor intf_desc = intf->cur_altsetting->desc;
+ u16 id_vendor = le16_to_cpu(dev->descriptor.idVendor);
+ u16 id_product = le16_to_cpu(dev->descriptor.idProduct);

- if (le16_to_cpu(dev->descriptor.idVendor) == 0x2c7c &&
- le16_to_cpu(dev->descriptor.idProduct) == 0x0306 &&
- intf_desc.bNumEndpoints == 2)
- return true;
+ if (id_vendor != 0x2c7c || intf_desc.bNumEndpoints != 2)
+ return false;

- return false;
+ if (id_product == 0x0306 || id_product == 0x0512)
+ return true;
+ else
+ return false;
}

static int qmi_wwan_probe(struct usb_interface *intf,
@@ -1390,13 +1400,13 @@ static int qmi_wwan_probe(struct usb_interface *intf,
return -ENODEV;
}

- /* Quectel EP06/EM06/EG06 supports dynamic interface configuration, so
+ /* Several Quectel modems supports dynamic interface configuration, so
* we need to match on class/subclass/protocol. These values are
* identical for the diagnostic- and QMI-interface, but bNumEndpoints is
* different. Ignore the current interface if the number of endpoints
* the number for the diag interface (two).
*/
- if (quectel_ep06_diag_detected(intf))
+ if (quectel_diag_detected(intf))
return -ENODEV;

return usbnet_probe(intf, id);
diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c
index 0ccb021f1e78..10d580c3dea3 100644
--- a/drivers/net/xen-netback/hash.c
+++ b/drivers/net/xen-netback/hash.c
@@ -454,6 +454,8 @@ void xenvif_init_hash(struct xenvif *vif)
if (xenvif_hash_cache_size == 0)
return;

+ BUG_ON(vif->hash.cache.count);
+
spin_lock_init(&vif->hash.cache.lock);
INIT_LIST_HEAD(&vif->hash.cache.list);
}
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index f6ae23fc3f6b..82add0ac4a5f 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -153,6 +153,13 @@ static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb,
{
struct xenvif *vif = netdev_priv(dev);
unsigned int size = vif->hash.size;
+ unsigned int num_queues;
+
+ /* If queues are not set up internally - always return 0
+ * as the packet going to be dropped anyway */
+ num_queues = READ_ONCE(vif->num_queues);
+ if (num_queues < 1)
+ return 0;

if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)
return fallback(dev, skb, NULL) % dev->real_num_tx_queues;
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 3621e05a7494..d5081ffdc8f0 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1072,11 +1072,6 @@ static int xenvif_handle_frag_list(struct xenvif_queue *queue, struct sk_buff *s
skb_frag_size_set(&frags[i], len);
}

- /* Copied all the bits from the frag list -- free it. */
- skb_frag_list_init(skb);
- xenvif_skb_zerocopy_prepare(queue, nskb);
- kfree_skb(nskb);
-
/* Release all the original (foreign) frags. */
for (f = 0; f < skb_shinfo(skb)->nr_frags; f++)
skb_frag_unref(skb, f);
@@ -1145,6 +1140,8 @@ static int xenvif_tx_submit(struct xenvif_queue *queue)
xenvif_fill_frags(queue, skb);

if (unlikely(skb_has_frag_list(skb))) {
+ struct sk_buff *nskb = skb_shinfo(skb)->frag_list;
+ xenvif_skb_zerocopy_prepare(queue, nskb);
if (xenvif_handle_frag_list(queue, skb)) {
if (net_ratelimit())
netdev_err(queue->vif->dev,
@@ -1153,6 +1150,9 @@ static int xenvif_tx_submit(struct xenvif_queue *queue)
kfree_skb(skb);
continue;
}
+ /* Copied all the bits from the frag list -- free it. */
+ skb_frag_list_init(skb);
+ kfree_skb(nskb);
}

skb->dev = queue->vif->dev;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b5f638286037..18e4289baf99 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -757,6 +757,7 @@ static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result)
set_host_byte(cmd, DID_OK);
return BLK_STS_TARGET;
case DID_NEXUS_FAILURE:
+ set_host_byte(cmd, DID_OK);
return BLK_STS_NEXUS;
case DID_ALLOC_FAILURE:
set_host_byte(cmd, DID_OK);
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index a880b5c6c6c3..be815330ed95 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -75,6 +75,9 @@ struct ashmem_range {
/* LRU list of unpinned pages, protected by ashmem_mutex */
static LIST_HEAD(ashmem_lru_list);

+static atomic_t ashmem_shrink_inflight = ATOMIC_INIT(0);
+static DECLARE_WAIT_QUEUE_HEAD(ashmem_shrink_wait);
+
/*
* long lru_count - The count of pages on our LRU list.
*
@@ -168,19 +171,15 @@ static inline void lru_del(struct ashmem_range *range)
* @end: The ending page (inclusive)
*
* This function is protected by ashmem_mutex.
- *
- * Return: 0 if successful, or -ENOMEM if there is an error
*/
-static int range_alloc(struct ashmem_area *asma,
- struct ashmem_range *prev_range, unsigned int purged,
- size_t start, size_t end)
+static void range_alloc(struct ashmem_area *asma,
+ struct ashmem_range *prev_range, unsigned int purged,
+ size_t start, size_t end,
+ struct ashmem_range **new_range)
{
- struct ashmem_range *range;
-
- range = kmem_cache_zalloc(ashmem_range_cachep, GFP_KERNEL);
- if (!range)
- return -ENOMEM;
+ struct ashmem_range *range = *new_range;

+ *new_range = NULL;
range->asma = asma;
range->pgstart = start;
range->pgend = end;
@@ -190,8 +189,6 @@ static int range_alloc(struct ashmem_area *asma,

if (range_on_lru(range))
lru_add(range);
-
- return 0;
}

/**
@@ -438,7 +435,6 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
static unsigned long
ashmem_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
{
- struct ashmem_range *range, *next;
unsigned long freed = 0;

/* We might recurse into filesystem code, so bail out if necessary */
@@ -448,21 +444,33 @@ ashmem_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
if (!mutex_trylock(&ashmem_mutex))
return -1;

- list_for_each_entry_safe(range, next, &ashmem_lru_list, lru) {
+ while (!list_empty(&ashmem_lru_list)) {
+ struct ashmem_range *range =
+ list_first_entry(&ashmem_lru_list, typeof(*range), lru);
loff_t start = range->pgstart * PAGE_SIZE;
loff_t end = (range->pgend + 1) * PAGE_SIZE;
+ struct file *f = range->asma->file;

- range->asma->file->f_op->fallocate(range->asma->file,
- FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
- start, end - start);
+ get_file(f);
+ atomic_inc(&ashmem_shrink_inflight);
range->purged = ASHMEM_WAS_PURGED;
lru_del(range);

freed += range_size(range);
+ mutex_unlock(&ashmem_mutex);
+ f->f_op->fallocate(f,
+ FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ start, end - start);
+ fput(f);
+ if (atomic_dec_and_test(&ashmem_shrink_inflight))
+ wake_up_all(&ashmem_shrink_wait);
+ if (!mutex_trylock(&ashmem_mutex))
+ goto out;
if (--sc->nr_to_scan <= 0)
break;
}
mutex_unlock(&ashmem_mutex);
+out:
return freed;
}

@@ -582,7 +590,8 @@ static int get_name(struct ashmem_area *asma, void __user *name)
*
* Caller must hold ashmem_mutex.
*/
-static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
+static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend,
+ struct ashmem_range **new_range)
{
struct ashmem_range *range, *next;
int ret = ASHMEM_NOT_PURGED;
@@ -635,7 +644,7 @@ static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
* second half and adjust the first chunk's endpoint.
*/
range_alloc(asma, range, range->purged,
- pgend + 1, range->pgend);
+ pgend + 1, range->pgend, new_range);
range_shrink(range, range->pgstart, pgstart - 1);
break;
}
@@ -649,7 +658,8 @@ static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
*
* Caller must hold ashmem_mutex.
*/
-static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
+static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend,
+ struct ashmem_range **new_range)
{
struct ashmem_range *range, *next;
unsigned int purged = ASHMEM_NOT_PURGED;
@@ -675,7 +685,8 @@ static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
}
}

- return range_alloc(asma, range, purged, pgstart, pgend);
+ range_alloc(asma, range, purged, pgstart, pgend, new_range);
+ return 0;
}

/*
@@ -708,11 +719,19 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
struct ashmem_pin pin;
size_t pgstart, pgend;
int ret = -EINVAL;
+ struct ashmem_range *range = NULL;

if (copy_from_user(&pin, p, sizeof(pin)))
return -EFAULT;

+ if (cmd == ASHMEM_PIN || cmd == ASHMEM_UNPIN) {
+ range = kmem_cache_zalloc(ashmem_range_cachep, GFP_KERNEL);
+ if (!range)
+ return -ENOMEM;
+ }
+
mutex_lock(&ashmem_mutex);
+ wait_event(ashmem_shrink_wait, !atomic_read(&ashmem_shrink_inflight));

if (!asma->file)
goto out_unlock;
@@ -735,10 +754,10 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,

switch (cmd) {
case ASHMEM_PIN:
- ret = ashmem_pin(asma, pgstart, pgend);
+ ret = ashmem_pin(asma, pgstart, pgend, &range);
break;
case ASHMEM_UNPIN:
- ret = ashmem_unpin(asma, pgstart, pgend);
+ ret = ashmem_unpin(asma, pgstart, pgend, &range);
break;
case ASHMEM_GET_PIN_STATUS:
ret = ashmem_get_pin_status(asma, pgstart, pgend);
@@ -747,6 +766,8 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,

out_unlock:
mutex_unlock(&ashmem_mutex);
+ if (range)
+ kmem_cache_free(ashmem_range_cachep, range);

return ret;
}
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 701eb9f3b0f1..0a1b1ff1be04 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -247,10 +247,10 @@ static void ion_system_heap_destroy_pools(struct ion_page_pool **pools)
static int ion_system_heap_create_pools(struct ion_page_pool **pools)
{
int i;
- gfp_t gfp_flags = low_order_gfp_flags;

for (i = 0; i < NUM_ORDERS; i++) {
struct ion_page_pool *pool;
+ gfp_t gfp_flags = low_order_gfp_flags;

if (orders[i] > 4)
gfp_flags = high_order_gfp_flags;
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index e521ed9d0887..35bd4d2efe16 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -602,6 +602,7 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev,
case NI_660X_PFI_OUTPUT_DIO:
if (chan > 31)
return -EINVAL;
+ break;
default:
return -EINVAL;
}
diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c
index 1279241449f4..f44662dd795c 100644
--- a/drivers/staging/erofs/unzip_vle.c
+++ b/drivers/staging/erofs/unzip_vle.c
@@ -57,15 +57,30 @@ enum z_erofs_vle_work_role {
Z_EROFS_VLE_WORK_SECONDARY,
Z_EROFS_VLE_WORK_PRIMARY,
/*
- * The current work has at least been linked with the following
- * processed chained works, which means if the processing page
- * is the tail partial page of the work, the current work can
- * safely use the whole page, as illustrated below:
- * +--------------+-------------------------------------------+
- * | tail page | head page (of the previous work) |
- * +--------------+-------------------------------------------+
- * /\ which belongs to the current work
- * [ (*) this page can be used for the current work itself. ]
+ * The current work was the tail of an exist chain, and the previous
+ * processed chained works are all decided to be hooked up to it.
+ * A new chain should be created for the remaining unprocessed works,
+ * therefore different from Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED,
+ * the next work cannot reuse the whole page in the following scenario:
+ * ________________________________________________________________
+ * | tail (partial) page | head (partial) page |
+ * | (belongs to the next work) | (belongs to the current work) |
+ * |_______PRIMARY_FOLLOWED_______|________PRIMARY_HOOKED___________|
+ */
+ Z_EROFS_VLE_WORK_PRIMARY_HOOKED,
+ /*
+ * The current work has been linked with the processed chained works,
+ * and could be also linked with the potential remaining works, which
+ * means if the processing page is the tail partial page of the work,
+ * the current work can safely use the whole page (since the next work
+ * is under control) for in-place decompression, as illustrated below:
+ * ________________________________________________________________
+ * | tail (partial) page | head (partial) page |
+ * | (of the current work) | (of the previous work) |
+ * | PRIMARY_FOLLOWED or | |
+ * |_____PRIMARY_HOOKED____|____________PRIMARY_FOLLOWED____________|
+ *
+ * [ (*) the above page can be used for the current work itself. ]
*/
Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED,
Z_EROFS_VLE_WORK_MAX
@@ -234,10 +249,10 @@ static int z_erofs_vle_work_add_page(
return ret ? 0 : -EAGAIN;
}

-static inline bool try_to_claim_workgroup(
- struct z_erofs_vle_workgroup *grp,
- z_erofs_vle_owned_workgrp_t *owned_head,
- bool *hosted)
+static enum z_erofs_vle_work_role
+try_to_claim_workgroup(struct z_erofs_vle_workgroup *grp,
+ z_erofs_vle_owned_workgrp_t *owned_head,
+ bool *hosted)
{
DBG_BUGON(*hosted == true);

@@ -251,6 +266,9 @@ static inline bool try_to_claim_workgroup(

*owned_head = grp;
*hosted = true;
+ /* lucky, I am the followee :) */
+ return Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED;
+
} else if (grp->next == Z_EROFS_VLE_WORKGRP_TAIL) {
/*
* type 2, link to the end of a existing open chain,
@@ -260,12 +278,11 @@ static inline bool try_to_claim_workgroup(
if (Z_EROFS_VLE_WORKGRP_TAIL != cmpxchg(&grp->next,
Z_EROFS_VLE_WORKGRP_TAIL, *owned_head))
goto retry;
-
*owned_head = Z_EROFS_VLE_WORKGRP_TAIL;
- } else
- return false; /* :( better luck next time */
+ return Z_EROFS_VLE_WORK_PRIMARY_HOOKED;
+ }

- return true; /* lucky, I am the followee :) */
+ return Z_EROFS_VLE_WORK_PRIMARY; /* :( better luck next time */
}

static struct z_erofs_vle_work *
@@ -337,12 +354,8 @@ z_erofs_vle_work_lookup(struct super_block *sb,
*hosted = false;
if (!primary)
*role = Z_EROFS_VLE_WORK_SECONDARY;
- /* claim the workgroup if possible */
- else if (try_to_claim_workgroup(grp, owned_head, hosted))
- *role = Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED;
- else
- *role = Z_EROFS_VLE_WORK_PRIMARY;
-
+ else /* claim the workgroup if possible */
+ *role = try_to_claim_workgroup(grp, owned_head, hosted);
return work;
}

@@ -419,6 +432,9 @@ static inline void __update_workgrp_llen(struct z_erofs_vle_workgroup *grp,
}
}

+#define builder_is_hooked(builder) \
+ ((builder)->role >= Z_EROFS_VLE_WORK_PRIMARY_HOOKED)
+
#define builder_is_followed(builder) \
((builder)->role >= Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED)

@@ -583,7 +599,7 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,
struct z_erofs_vle_work_builder *const builder = &fe->builder;
const loff_t offset = page_offset(page);

- bool tight = builder_is_followed(builder);
+ bool tight = builder_is_hooked(builder);
struct z_erofs_vle_work *work = builder->work;

#ifdef EROFS_FS_HAS_MANAGED_CACHE
@@ -606,8 +622,12 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,

/* lucky, within the range of the current map_blocks */
if (offset + cur >= map->m_la &&
- offset + cur < map->m_la + map->m_llen)
+ offset + cur < map->m_la + map->m_llen) {
+ /* didn't get a valid unzip work previously (very rare) */
+ if (!builder->work)
+ goto restart_now;
goto hitted;
+ }

/* go ahead the next map_blocks */
debugln("%s: [out-of-range] pos %llu", __func__, offset + cur);
@@ -621,6 +641,7 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,
if (unlikely(err))
goto err_out;

+restart_now:
if (unlikely(!(map->m_flags & EROFS_MAP_MAPPED)))
goto hitted;

@@ -646,7 +667,7 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,
builder->role = Z_EROFS_VLE_WORK_PRIMARY;
#endif

- tight &= builder_is_followed(builder);
+ tight &= builder_is_hooked(builder);
work = builder->work;
hitted:
cur = end - min_t(unsigned, offset + end - map->m_la, end);
@@ -661,6 +682,9 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,
(tight ? Z_EROFS_PAGE_TYPE_EXCLUSIVE :
Z_EROFS_VLE_PAGE_TYPE_TAIL_SHARED));

+ if (cur)
+ tight &= builder_is_followed(builder);
+
retry:
err = z_erofs_vle_work_add_page(builder, page, page_type);
/* should allocate an additional staging page for pagevec */
@@ -901,11 +925,10 @@ static int z_erofs_vle_unzip(struct super_block *sb,
if (llen > grp->llen)
llen = grp->llen;

- err = z_erofs_vle_unzip_fast_percpu(compressed_pages,
- clusterpages, pages, llen, work->pageofs,
- z_erofs_onlinepage_endio);
+ err = z_erofs_vle_unzip_fast_percpu(compressed_pages, clusterpages,
+ pages, llen, work->pageofs);
if (err != -ENOTSUPP)
- goto out_percpu;
+ goto out;

if (sparsemem_pages >= nr_pages)
goto skip_allocpage;
@@ -926,8 +949,25 @@ static int z_erofs_vle_unzip(struct super_block *sb,
erofs_vunmap(vout, nr_pages);

out:
+ /* must handle all compressed pages before endding pages */
+ for (i = 0; i < clusterpages; ++i) {
+ page = compressed_pages[i];
+
+#ifdef EROFS_FS_HAS_MANAGED_CACHE
+ if (page->mapping == mngda)
+ continue;
+#endif
+ /* recycle all individual staging pages */
+ (void)z_erofs_gather_if_stagingpage(page_pool, page);
+
+ WRITE_ONCE(compressed_pages[i], NULL);
+ }
+
for (i = 0; i < nr_pages; ++i) {
page = pages[i];
+ if (!page)
+ continue;
+
DBG_BUGON(page->mapping == NULL);

/* recycle all individual staging pages */
@@ -940,20 +980,6 @@ static int z_erofs_vle_unzip(struct super_block *sb,
z_erofs_onlinepage_endio(page);
}

-out_percpu:
- for (i = 0; i < clusterpages; ++i) {
- page = compressed_pages[i];
-
-#ifdef EROFS_FS_HAS_MANAGED_CACHE
- if (page->mapping == mngda)
- continue;
-#endif
- /* recycle all individual staging pages */
- (void)z_erofs_gather_if_stagingpage(page_pool, page);
-
- WRITE_ONCE(compressed_pages[i], NULL);
- }
-
if (pages == z_pagemap_global)
mutex_unlock(&z_pagemap_global_lock);
else if (unlikely(pages != pages_onstack))
diff --git a/drivers/staging/erofs/unzip_vle.h b/drivers/staging/erofs/unzip_vle.h
index 3316bc36965d..684ff06fc7bf 100644
--- a/drivers/staging/erofs/unzip_vle.h
+++ b/drivers/staging/erofs/unzip_vle.h
@@ -218,8 +218,7 @@ extern int z_erofs_vle_plain_copy(struct page **compressed_pages,

extern int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
unsigned clusterpages, struct page **pages,
- unsigned outlen, unsigned short pageofs,
- void (*endio)(struct page *));
+ unsigned int outlen, unsigned short pageofs);

extern int z_erofs_vle_unzip_vmap(struct page **compressed_pages,
unsigned clusterpages, void *vaddr, unsigned llen,
diff --git a/drivers/staging/erofs/unzip_vle_lz4.c b/drivers/staging/erofs/unzip_vle_lz4.c
index 9cb35cd33365..055420e8af2c 100644
--- a/drivers/staging/erofs/unzip_vle_lz4.c
+++ b/drivers/staging/erofs/unzip_vle_lz4.c
@@ -105,8 +105,7 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
unsigned clusterpages,
struct page **pages,
unsigned outlen,
- unsigned short pageofs,
- void (*endio)(struct page *))
+ unsigned short pageofs)
{
void *vin, *vout;
unsigned nr_pages, i, j;
@@ -128,31 +127,30 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
ret = z_erofs_unzip_lz4(vin, vout + pageofs,
clusterpages * PAGE_SIZE, outlen);

- if (ret >= 0) {
- outlen = ret;
- ret = 0;
- }
+ if (ret < 0)
+ goto out;
+ ret = 0;

for (i = 0; i < nr_pages; ++i) {
j = min((unsigned)PAGE_SIZE - pageofs, outlen);

if (pages[i] != NULL) {
- if (ret < 0)
- SetPageError(pages[i]);
- else if (clusterpages == 1 && pages[i] == compressed_pages[0])
+ if (clusterpages == 1 &&
+ pages[i] == compressed_pages[0]) {
memcpy(vin + pageofs, vout + pageofs, j);
- else {
+ } else {
void *dst = kmap_atomic(pages[i]);

memcpy(dst + pageofs, vout + pageofs, j);
kunmap_atomic(dst);
}
- endio(pages[i]);
}
vout += PAGE_SIZE;
outlen -= j;
pageofs = 0;
}
+
+out:
preempt_enable();

if (clusterpages == 1)
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 3b8d237decbf..649caae2b603 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1090,8 +1090,8 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
vif->wilc = *wilc;
vif->ndev = ndev;
wl->vif[i] = vif;
- wl->vif_num = i;
- vif->idx = wl->vif_num;
+ wl->vif_num = i + 1;
+ vif->idx = i;

ndev->netdev_ops = &wilc_netdev_ops;

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 09bf6b4b741b..1493d0fdf5ad 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -187,6 +187,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_SSIC_PORT_UNUSED;
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI))
xhci->quirks |= XHCI_INTEL_USB_ROLE_SW;
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index c0777a374a88..4c66edf533fe 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -61,6 +61,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
{ USB_DEVICE(0x0908, 0x01FF) }, /* Siemens RUGGEDCOM USB Serial Console */
+ { USB_DEVICE(0x0B00, 0x3070) }, /* Ingenico 3070 */
{ USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
{ USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
{ USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
@@ -1353,8 +1354,13 @@ static int cp210x_gpio_get(struct gpio_chip *gc, unsigned int gpio)
if (priv->partnum == CP210X_PARTNUM_CP2105)
req_type = REQTYPE_INTERFACE_TO_HOST;

+ result = usb_autopm_get_interface(serial->interface);
+ if (result)
+ return result;
+
result = cp210x_read_vendor_block(serial, req_type,
CP210X_READ_LATCH, &buf, sizeof(buf));
+ usb_autopm_put_interface(serial->interface);
if (result < 0)
return result;

@@ -1375,6 +1381,10 @@ static void cp210x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int value)

buf.mask = BIT(gpio);

+ result = usb_autopm_get_interface(serial->interface);
+ if (result)
+ goto out;
+
if (priv->partnum == CP210X_PARTNUM_CP2105) {
result = cp210x_write_vendor_block(serial,
REQTYPE_HOST_TO_INTERFACE,
@@ -1392,6 +1402,8 @@ static void cp210x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int value)
NULL, 0, USB_CTRL_SET_TIMEOUT);
}

+ usb_autopm_put_interface(serial->interface);
+out:
if (result < 0) {
dev_err(&serial->interface->dev, "failed to set GPIO value: %d\n",
result);
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index b5cef322826f..1d8077e880a0 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1015,6 +1015,8 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) },
{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) },
{ USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) },
+ /* EZPrototypes devices */
+ { USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) },
{ } /* Terminating entry */
};

diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 975d02666c5a..b863bedb55a1 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1308,6 +1308,12 @@
#define IONICS_VID 0x1c0c
#define IONICS_PLUGCOMPUTER_PID 0x0102

+/*
+ * EZPrototypes (PID reseller)
+ */
+#define EZPROTOTYPES_VID 0x1c40
+#define HJELMSLUND_USB485_ISO_PID 0x0477
+
/*
* Dresden Elektronik Sensor Terminal Board
*/
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index fb544340888b..faf833e8f557 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1148,6 +1148,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
.driver_info = NCTRL(0) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1102, 0xff), /* Telit ME910 (ECM) */
+ .driver_info = NCTRL(0) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
diff --git a/fs/aio.c b/fs/aio.c
index 44551d96eaa4..45d5ef8dd0a8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1661,6 +1661,7 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
struct poll_iocb *req = container_of(wait, struct poll_iocb, wait);
struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll);
__poll_t mask = key_to_poll(key);
+ unsigned long flags;

req->woken = true;

@@ -1669,10 +1670,15 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
if (!(mask & req->events))
return 0;

- /* try to complete the iocb inline if we can: */
- if (spin_trylock(&iocb->ki_ctx->ctx_lock)) {
+ /*
+ * Try to complete the iocb inline if we can. Use
+ * irqsave/irqrestore because not all filesystems (e.g. fuse)
+ * call this function with IRQs disabled and because IRQs
+ * have to be disabled before ctx_lock is obtained.
+ */
+ if (spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) {
list_del(&iocb->ki_list);
- spin_unlock(&iocb->ki_ctx->ctx_lock);
+ spin_unlock_irqrestore(&iocb->ki_ctx->ctx_lock, flags);

list_del_init(&req->wait.entry);
aio_poll_complete(iocb, mask);
diff --git a/fs/exec.c b/fs/exec.c
index 1ebf6e5a521d..433b1257694a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -929,7 +929,7 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
bytes = kernel_read(file, *buf + pos, i_size - pos, &pos);
if (bytes < 0) {
ret = bytes;
- goto out;
+ goto out_free;
}

if (bytes == 0)
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 882a9b9e34bc..72f59e8321e7 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -254,20 +254,12 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
static struct freq_attr _name = \
__ATTR(_name, 0200, NULL, store_##_name)

-struct global_attr {
- struct attribute attr;
- ssize_t (*show)(struct kobject *kobj,
- struct attribute *attr, char *buf);
- ssize_t (*store)(struct kobject *a, struct attribute *b,
- const char *c, size_t count);
-};
-
#define define_one_global_ro(_name) \
-static struct global_attr _name = \
+static struct kobj_attribute _name = \
__ATTR(_name, 0444, show_##_name, NULL)

#define define_one_global_rw(_name) \
-static struct global_attr _name = \
+static struct kobj_attribute _name = \
__ATTR(_name, 0644, show_##_name, store_##_name)


diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index ec9d6bc65855..fabee6db0abb 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -276,7 +276,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
int bt_sock_wait_ready(struct sock *sk, unsigned long flags);

-void bt_accept_enqueue(struct sock *parent, struct sock *sk);
+void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh);
void bt_accept_unlink(struct sock *sk);
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);

diff --git a/include/net/icmp.h b/include/net/icmp.h
index 3ef2743a8eec..8665bf24e3b7 100644
--- a/include/net/icmp.h
+++ b/include/net/icmp.h
@@ -22,6 +22,7 @@

#include <net/inet_sock.h>
#include <net/snmp.h>
+#include <net/ip.h>

struct icmp_err {
int errno;
@@ -39,7 +40,13 @@ struct net_proto_family;
struct sk_buff;
struct net;

-void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info);
+void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
+ const struct ip_options *opt);
+static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
+{
+ __icmp_send(skb_in, type, code, info, &IPCB(skb_in)->opt);
+}
+
int icmp_rcv(struct sk_buff *skb);
void icmp_err(struct sk_buff *skb, u32 info);
int icmp_init(void);
diff --git a/include/net/ip.h b/include/net/ip.h
index e44b1a44f67a..71d31e4d4391 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -638,6 +638,8 @@ static inline int ip_options_echo(struct net *net, struct ip_options *dopt,
}

void ip_options_fragment(struct sk_buff *skb);
+int __ip_options_compile(struct net *net, struct ip_options *opt,
+ struct sk_buff *skb, __be32 *info);
int ip_options_compile(struct net *net, struct ip_options *opt,
struct sk_buff *skb);
int ip_options_get(struct net *net, struct ip_options_rcu **optp,
@@ -687,7 +689,7 @@ extern int sysctl_icmp_msgs_burst;
int ip_misc_proc_init(void);
#endif

-int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto,
+int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto, u8 family,
struct netlink_ext_ack *extack);

#endif /* _IP_H */
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index a6d00093f35e..c44da48de7df 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -47,7 +47,10 @@ struct qdisc_size_table {
struct qdisc_skb_head {
struct sk_buff *head;
struct sk_buff *tail;
- __u32 qlen;
+ union {
+ u32 qlen;
+ atomic_t atomic_qlen;
+ };
spinlock_t lock;
};

@@ -384,27 +387,19 @@ static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
BUILD_BUG_ON(sizeof(qcb->data) < sz);
}

-static inline int qdisc_qlen_cpu(const struct Qdisc *q)
-{
- return this_cpu_ptr(q->cpu_qstats)->qlen;
-}
-
static inline int qdisc_qlen(const struct Qdisc *q)
{
return q->q.qlen;
}

-static inline int qdisc_qlen_sum(const struct Qdisc *q)
+static inline u32 qdisc_qlen_sum(const struct Qdisc *q)
{
- __u32 qlen = q->qstats.qlen;
- int i;
+ u32 qlen = q->qstats.qlen;

- if (q->flags & TCQ_F_NOLOCK) {
- for_each_possible_cpu(i)
- qlen += per_cpu_ptr(q->cpu_qstats, i)->qlen;
- } else {
+ if (q->flags & TCQ_F_NOLOCK)
+ qlen += atomic_read(&q->q.atomic_qlen);
+ else
qlen += q->q.qlen;
- }

return qlen;
}
@@ -776,14 +771,14 @@ static inline void qdisc_qstats_cpu_backlog_inc(struct Qdisc *sch,
this_cpu_add(sch->cpu_qstats->backlog, qdisc_pkt_len(skb));
}

-static inline void qdisc_qstats_cpu_qlen_inc(struct Qdisc *sch)
+static inline void qdisc_qstats_atomic_qlen_inc(struct Qdisc *sch)
{
- this_cpu_inc(sch->cpu_qstats->qlen);
+ atomic_inc(&sch->q.atomic_qlen);
}

-static inline void qdisc_qstats_cpu_qlen_dec(struct Qdisc *sch)
+static inline void qdisc_qstats_atomic_qlen_dec(struct Qdisc *sch)
{
- this_cpu_dec(sch->cpu_qstats->qlen);
+ atomic_dec(&sch->q.atomic_qlen);
}

static inline void qdisc_qstats_cpu_requeues_inc(struct Qdisc *sch)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 4d81be2d0739..bcb42aaf1b3a 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -6035,7 +6035,8 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env)
u32 off_reg;

aux = &env->insn_aux_data[i + delta];
- if (!aux->alu_state)
+ if (!aux->alu_state ||
+ aux->alu_state == BPF_ALU_NON_POINTER)
continue;

isneg = aux->alu_state & BPF_ALU_NEG_VALUE;
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 5574e862de8d..5a1c64a26e81 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1301,7 +1301,7 @@ static int parse_pred(const char *str, void *data,
/* go past the last quote */
i++;

- } else if (isdigit(str[i])) {
+ } else if (isdigit(str[i]) || str[i] == '-') {

/* Make sure the field is not a string */
if (is_string_field(field)) {
@@ -1314,6 +1314,9 @@ static int parse_pred(const char *str, void *data,
goto err_free;
}

+ if (str[i] == '-')
+ i++;
+
/* We allow 0xDEADBEEF */
while (isalnum(str[i]))
i++;
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index deacc52d7ff1..8d12198eaa94 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -154,15 +154,25 @@ void bt_sock_unlink(struct bt_sock_list *l, struct sock *sk)
}
EXPORT_SYMBOL(bt_sock_unlink);

-void bt_accept_enqueue(struct sock *parent, struct sock *sk)
+void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
{
BT_DBG("parent %p, sk %p", parent, sk);

sock_hold(sk);
- lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
+
+ if (bh)
+ bh_lock_sock_nested(sk);
+ else
+ lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
+
list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q);
bt_sk(sk)->parent = parent;
- release_sock(sk);
+
+ if (bh)
+ bh_unlock_sock(sk);
+ else
+ release_sock(sk);
+
parent->sk_ack_backlog++;
}
EXPORT_SYMBOL(bt_accept_enqueue);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 686bdc6b35b0..a3a2cd55e23a 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1252,7 +1252,7 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)

l2cap_sock_init(sk, parent);

- bt_accept_enqueue(parent, sk);
+ bt_accept_enqueue(parent, sk, false);

release_sock(parent);

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index d606e9212291..c044ff2f73e6 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -988,7 +988,7 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc *
rfcomm_pi(sk)->channel = channel;

sk->sk_state = BT_CONFIG;
- bt_accept_enqueue(parent, sk);
+ bt_accept_enqueue(parent, sk, true);

/* Accept connection and return socket DLC */
*d = rfcomm_pi(sk)->dlc;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 8f0f9279eac9..a4ca55df7390 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -193,7 +193,7 @@ static void __sco_chan_add(struct sco_conn *conn, struct sock *sk,
conn->sk = sk;

if (parent)
- bt_accept_enqueue(parent, sk);
+ bt_accept_enqueue(parent, sk, true);
}

static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index 188d693cb251..e2fd8baec65f 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -256,7 +256,6 @@ __gnet_stats_copy_queue_cpu(struct gnet_stats_queue *qstats,
for_each_possible_cpu(i) {
const struct gnet_stats_queue *qcpu = per_cpu_ptr(q, i);

- qstats->qlen = 0;
qstats->backlog += qcpu->backlog;
qstats->drops += qcpu->drops;
qstats->requeues += qcpu->requeues;
@@ -272,7 +271,6 @@ void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats,
if (cpu) {
__gnet_stats_copy_queue_cpu(qstats, cpu);
} else {
- qstats->qlen = q->qlen;
qstats->backlog = q->backlog;
qstats->drops = q->drops;
qstats->requeues = q->requeues;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index bd67c4d0fcfd..2aabb7eb0854 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1547,6 +1547,9 @@ static int register_queue_kobjects(struct net_device *dev)
error:
netdev_queue_update_kobjects(dev, txq, 0);
net_rx_queue_update_kobjects(dev, rxq, 0);
+#ifdef CONFIG_SYSFS
+ kset_unregister(dev->queues_kset);
+#endif
return error;
}

diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 777fa3b7fb13..f0165c5f376b 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -667,7 +667,8 @@ static int cipso_v4_map_lvl_valid(const struct cipso_v4_doi *doi_def, u8 level)
case CIPSO_V4_MAP_PASS:
return 0;
case CIPSO_V4_MAP_TRANS:
- if (doi_def->map.std->lvl.cipso[level] < CIPSO_V4_INV_LVL)
+ if ((level < doi_def->map.std->lvl.cipso_size) &&
+ (doi_def->map.std->lvl.cipso[level] < CIPSO_V4_INV_LVL))
return 0;
break;
}
@@ -1735,13 +1736,26 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option)
*/
void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway)
{
+ unsigned char optbuf[sizeof(struct ip_options) + 40];
+ struct ip_options *opt = (struct ip_options *)optbuf;
+
if (ip_hdr(skb)->protocol == IPPROTO_ICMP || error != -EACCES)
return;

+ /*
+ * We might be called above the IP layer,
+ * so we can not use icmp_send and IPCB here.
+ */
+
+ memset(opt, 0, sizeof(struct ip_options));
+ opt->optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr);
+ if (__ip_options_compile(dev_net(skb->dev), opt, skb, NULL))
+ return;
+
if (gateway)
- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_NET_ANO, 0);
+ __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_NET_ANO, 0, opt);
else
- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_ANO, 0);
+ __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_ANO, 0, opt);
}

/**
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 958e185a8e8d..dae743b649c1 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -700,6 +700,10 @@ static int rtm_to_fib_config(struct net *net, struct sk_buff *skb,
case RTA_GATEWAY:
cfg->fc_gw = nla_get_be32(attr);
break;
+ case RTA_VIA:
+ NL_SET_ERR_MSG(extack, "IPv4 does not support RTA_VIA attribute");
+ err = -EINVAL;
+ goto errout;
case RTA_PRIORITY:
cfg->fc_priority = nla_get_u32(attr);
break;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 695979b7ef6d..ad75c468ecfb 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -570,7 +570,8 @@ static struct rtable *icmp_route_lookup(struct net *net,
* MUST reply to only the first fragment.
*/

-void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
+void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
+ const struct ip_options *opt)
{
struct iphdr *iph;
int room;
@@ -691,7 +692,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
iph->tos;
mark = IP4_REPLY_MARK(net, skb_in->mark);

- if (ip_options_echo(net, &icmp_param.replyopts.opt.opt, skb_in))
+ if (__ip_options_echo(net, &icmp_param.replyopts.opt.opt, skb_in, opt))
goto out_unlock;


@@ -742,7 +743,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
local_bh_enable();
out:;
}
-EXPORT_SYMBOL(icmp_send);
+EXPORT_SYMBOL(__icmp_send);


static void icmp_socket_deliver(struct sk_buff *skb, u32 info)
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 6f977b0fef54..bd8ef4f87c79 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -308,11 +308,10 @@ static inline bool ip_rcv_options(struct sk_buff *skb)
}

static int ip_rcv_finish_core(struct net *net, struct sock *sk,
- struct sk_buff *skb)
+ struct sk_buff *skb, struct net_device *dev)
{
const struct iphdr *iph = ip_hdr(skb);
int (*edemux)(struct sk_buff *skb);
- struct net_device *dev = skb->dev;
struct rtable *rt;
int err;

@@ -401,6 +400,7 @@ static int ip_rcv_finish_core(struct net *net, struct sock *sk,

static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
+ struct net_device *dev = skb->dev;
int ret;

/* if ingress device is enslaved to an L3 master device pass the
@@ -410,7 +410,7 @@ static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
if (!skb)
return NET_RX_SUCCESS;

- ret = ip_rcv_finish_core(net, sk, skb);
+ ret = ip_rcv_finish_core(net, sk, skb, dev);
if (ret != NET_RX_DROP)
ret = dst_input(skb);
return ret;
@@ -550,6 +550,7 @@ static void ip_list_rcv_finish(struct net *net, struct sock *sk,

INIT_LIST_HEAD(&sublist);
list_for_each_entry_safe(skb, next, head, list) {
+ struct net_device *dev = skb->dev;
struct dst_entry *dst;

skb_list_del_init(skb);
@@ -559,7 +560,7 @@ static void ip_list_rcv_finish(struct net *net, struct sock *sk,
skb = l3mdev_ip_rcv(skb);
if (!skb)
continue;
- if (ip_rcv_finish_core(net, sk, skb) == NET_RX_DROP)
+ if (ip_rcv_finish_core(net, sk, skb, dev) == NET_RX_DROP)
continue;

dst = skb_dst(skb);
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index ed194d46c00e..32a35043c9f5 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -251,8 +251,9 @@ static void spec_dst_fill(__be32 *spec_dst, struct sk_buff *skb)
* If opt == NULL, then skb->data should point to IP header.
*/

-int ip_options_compile(struct net *net,
- struct ip_options *opt, struct sk_buff *skb)
+int __ip_options_compile(struct net *net,
+ struct ip_options *opt, struct sk_buff *skb,
+ __be32 *info)
{
__be32 spec_dst = htonl(INADDR_ANY);
unsigned char *pp_ptr = NULL;
@@ -468,11 +469,22 @@ int ip_options_compile(struct net *net,
return 0;

error:
- if (skb) {
- icmp_send(skb, ICMP_PARAMETERPROB, 0, htonl((pp_ptr-iph)<<24));
- }
+ if (info)
+ *info = htonl((pp_ptr-iph)<<24);
return -EINVAL;
}
+
+int ip_options_compile(struct net *net,
+ struct ip_options *opt, struct sk_buff *skb)
+{
+ int ret;
+ __be32 info;
+
+ ret = __ip_options_compile(net, opt, skb, &info);
+ if (ret != 0 && skb)
+ icmp_send(skb, ICMP_PARAMETERPROB, 0, info);
+ return ret;
+}
EXPORT_SYMBOL(ip_options_compile);

/*
diff --git a/net/ipv4/netlink.c b/net/ipv4/netlink.c
index f86bb4f06609..d8e3a1fb8e82 100644
--- a/net/ipv4/netlink.c
+++ b/net/ipv4/netlink.c
@@ -3,9 +3,10 @@
#include <linux/types.h>
#include <net/net_namespace.h>
#include <net/netlink.h>
+#include <linux/in6.h>
#include <net/ip.h>

-int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto,
+int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto, u8 family,
struct netlink_ext_ack *extack)
{
*ip_proto = nla_get_u8(attr);
@@ -13,11 +14,19 @@ int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto,
switch (*ip_proto) {
case IPPROTO_TCP:
case IPPROTO_UDP:
+ return 0;
case IPPROTO_ICMP:
+ if (family != AF_INET)
+ break;
+ return 0;
+#if IS_ENABLED(CONFIG_IPV6)
+ case IPPROTO_ICMPV6:
+ if (family != AF_INET6)
+ break;
return 0;
- default:
- NL_SET_ERR_MSG(extack, "Unsupported ip proto");
- return -EOPNOTSUPP;
+#endif
}
+ NL_SET_ERR_MSG(extack, "Unsupported ip proto");
+ return -EOPNOTSUPP;
}
EXPORT_SYMBOL_GPL(rtm_getroute_parse_ip_proto);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 436b46c0e687..ca87bb6784e5 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2814,7 +2814,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,

if (tb[RTA_IP_PROTO]) {
err = rtm_getroute_parse_ip_proto(tb[RTA_IP_PROTO],
- &ip_proto, extack);
+ &ip_proto, AF_INET, extack);
if (err)
return err;
}
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 10aafea3af0f..35e7092eceb3 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1954,10 +1954,10 @@ int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)

static inline int ip6mr_forward2_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- __IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
- IPSTATS_MIB_OUTFORWDATAGRAMS);
- __IP6_ADD_STATS(net, ip6_dst_idev(skb_dst(skb)),
- IPSTATS_MIB_OUTOCTETS, skb->len);
+ IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
+ IPSTATS_MIB_OUTFORWDATAGRAMS);
+ IP6_ADD_STATS(net, ip6_dst_idev(skb_dst(skb)),
+ IPSTATS_MIB_OUTOCTETS, skb->len);
return dst_output(net, sk, skb);
}

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 08c4516ae4a4..ba59a9c14e02 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4213,6 +4213,10 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
cfg->fc_gateway = nla_get_in6_addr(tb[RTA_GATEWAY]);
cfg->fc_flags |= RTF_GATEWAY;
}
+ if (tb[RTA_VIA]) {
+ NL_SET_ERR_MSG(extack, "IPv6 does not support RTA_VIA attribute");
+ goto errout;
+ }

if (tb[RTA_DST]) {
int plen = (rtm->rtm_dst_len + 7) >> 3;
@@ -4907,7 +4911,8 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,

if (tb[RTA_IP_PROTO]) {
err = rtm_getroute_parse_ip_proto(tb[RTA_IP_PROTO],
- &fl6.flowi6_proto, extack);
+ &fl6.flowi6_proto, AF_INET6,
+ extack);
if (err)
goto errout;
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index da6d5a3f5399..868d7da7a0cb 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1873,6 +1873,7 @@ static int __net_init sit_init_net(struct net *net)

err_reg_dev:
ipip6_dev_free(sitn->fb_tunnel_dev);
+ free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
return err;
}
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 8fbe6cdbe255..d5a4db5b3fe7 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -1822,6 +1822,9 @@ static int rtm_to_route_config(struct sk_buff *skb,
goto errout;
break;
}
+ case RTA_GATEWAY:
+ NL_SET_ERR_MSG(extack, "MPLS does not support RTA_GATEWAY attribute");
+ goto errout;
case RTA_VIA:
{
if (nla_get_via(nla, &cfg->rc_via_alen,
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index ea7c67050792..ee3e5b6471a6 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -903,7 +903,8 @@ int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len,
(state == 0 && (byte & bitmask) == 0))
return bit_spot;

- bit_spot++;
+ if (++bit_spot >= bitmap_len)
+ return -1;
bitmask >>= 1;
if (bitmask == 0) {
byte = bitmap[++byte_offset];
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index 6a196e438b6c..d1fc019e932e 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -419,6 +419,10 @@ int nfc_llcp_send_connect(struct nfc_llcp_sock *sock)
sock->service_name,
sock->service_name_len,
&service_name_tlv_length);
+ if (!service_name_tlv) {
+ err = -ENOMEM;
+ goto error_tlv;
+ }
size += service_name_tlv_length;
}

@@ -429,9 +433,17 @@ int nfc_llcp_send_connect(struct nfc_llcp_sock *sock)

miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
&miux_tlv_length);
+ if (!miux_tlv) {
+ err = -ENOMEM;
+ goto error_tlv;
+ }
size += miux_tlv_length;

rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &rw, 0, &rw_tlv_length);
+ if (!rw_tlv) {
+ err = -ENOMEM;
+ goto error_tlv;
+ }
size += rw_tlv_length;

pr_debug("SKB size %d SN length %zu\n", size, sock->service_name_len);
@@ -484,9 +496,17 @@ int nfc_llcp_send_cc(struct nfc_llcp_sock *sock)

miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&miux, 0,
&miux_tlv_length);
+ if (!miux_tlv) {
+ err = -ENOMEM;
+ goto error_tlv;
+ }
size += miux_tlv_length;

rw_tlv = nfc_llcp_build_tlv(LLCP_TLV_RW, &rw, 0, &rw_tlv_length);
+ if (!rw_tlv) {
+ err = -ENOMEM;
+ goto error_tlv;
+ }
size += rw_tlv_length;

skb = llcp_allocate_pdu(sock, LLCP_PDU_CC, size);
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index ef4026a23e80..4fa015208aab 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -532,10 +532,10 @@ static u8 nfc_llcp_reserve_sdp_ssap(struct nfc_llcp_local *local)

static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
{
- u8 *gb_cur, *version_tlv, version, version_length;
- u8 *lto_tlv, lto_length;
- u8 *wks_tlv, wks_length;
- u8 *miux_tlv, miux_length;
+ u8 *gb_cur, version, version_length;
+ u8 lto_length, wks_length, miux_length;
+ u8 *version_tlv = NULL, *lto_tlv = NULL,
+ *wks_tlv = NULL, *miux_tlv = NULL;
__be16 wks = cpu_to_be16(local->local_wks);
u8 gb_len = 0;
int ret = 0;
@@ -543,17 +543,33 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
version = LLCP_VERSION_11;
version_tlv = nfc_llcp_build_tlv(LLCP_TLV_VERSION, &version,
1, &version_length);
+ if (!version_tlv) {
+ ret = -ENOMEM;
+ goto out;
+ }
gb_len += version_length;

lto_tlv = nfc_llcp_build_tlv(LLCP_TLV_LTO, &local->lto, 1, &lto_length);
+ if (!lto_tlv) {
+ ret = -ENOMEM;
+ goto out;
+ }
gb_len += lto_length;

pr_debug("Local wks 0x%lx\n", local->local_wks);
wks_tlv = nfc_llcp_build_tlv(LLCP_TLV_WKS, (u8 *)&wks, 2, &wks_length);
+ if (!wks_tlv) {
+ ret = -ENOMEM;
+ goto out;
+ }
gb_len += wks_length;

miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,
&miux_length);
+ if (!miux_tlv) {
+ ret = -ENOMEM;
+ goto out;
+ }
gb_len += miux_length;

gb_len += ARRAY_SIZE(llcp_magic);
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 8525de811616..334f3a057671 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -199,8 +199,7 @@ static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
err2:
kfree(tname);
err1:
- if (ret == ACT_P_CREATED)
- tcf_idr_release(*a, bind);
+ tcf_idr_release(*a, bind);
return err;
}

diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 73e44ce2a883..86d90fc5e97e 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -191,8 +191,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,

params_new = kzalloc(sizeof(*params_new), GFP_KERNEL);
if (unlikely(!params_new)) {
- if (ret == ACT_P_CREATED)
- tcf_idr_release(*a, bind);
+ tcf_idr_release(*a, bind);
return -ENOMEM;
}

diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 0f6601fdf889..72d9c432e8b4 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -377,7 +377,8 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
return ret;

release_tun_meta:
- dst_release(&metadata->dst);
+ if (metadata)
+ dst_release(&metadata->dst);

err_out:
if (exists)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 69078c82963e..77b289da7763 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -68,7 +68,7 @@ static inline struct sk_buff *__skb_dequeue_bad_txq(struct Qdisc *q)
skb = __skb_dequeue(&q->skb_bad_txq);
if (qdisc_is_percpu_stats(q)) {
qdisc_qstats_cpu_backlog_dec(q, skb);
- qdisc_qstats_cpu_qlen_dec(q);
+ qdisc_qstats_atomic_qlen_dec(q);
} else {
qdisc_qstats_backlog_dec(q, skb);
q->q.qlen--;
@@ -108,7 +108,7 @@ static inline void qdisc_enqueue_skb_bad_txq(struct Qdisc *q,

if (qdisc_is_percpu_stats(q)) {
qdisc_qstats_cpu_backlog_inc(q, skb);
- qdisc_qstats_cpu_qlen_inc(q);
+ qdisc_qstats_atomic_qlen_inc(q);
} else {
qdisc_qstats_backlog_inc(q, skb);
q->q.qlen++;
@@ -147,7 +147,7 @@ static inline int dev_requeue_skb_locked(struct sk_buff *skb, struct Qdisc *q)

qdisc_qstats_cpu_requeues_inc(q);
qdisc_qstats_cpu_backlog_inc(q, skb);
- qdisc_qstats_cpu_qlen_inc(q);
+ qdisc_qstats_atomic_qlen_inc(q);

skb = next;
}
@@ -252,7 +252,7 @@ static struct sk_buff *dequeue_skb(struct Qdisc *q, bool *validate,
skb = __skb_dequeue(&q->gso_skb);
if (qdisc_is_percpu_stats(q)) {
qdisc_qstats_cpu_backlog_dec(q, skb);
- qdisc_qstats_cpu_qlen_dec(q);
+ qdisc_qstats_atomic_qlen_dec(q);
} else {
qdisc_qstats_backlog_dec(q, skb);
q->q.qlen--;
@@ -633,7 +633,7 @@ static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc *qdisc,
if (unlikely(err))
return qdisc_drop_cpu(skb, qdisc, to_free);

- qdisc_qstats_cpu_qlen_inc(qdisc);
+ qdisc_qstats_atomic_qlen_inc(qdisc);
/* Note: skb can not be used after skb_array_produce(),
* so we better not use qdisc_qstats_cpu_backlog_inc()
*/
@@ -658,7 +658,7 @@ static struct sk_buff *pfifo_fast_dequeue(struct Qdisc *qdisc)
if (likely(skb)) {
qdisc_qstats_cpu_backlog_dec(qdisc, skb);
qdisc_bstats_cpu_update(qdisc, skb);
- qdisc_qstats_cpu_qlen_dec(qdisc);
+ qdisc_qstats_atomic_qlen_dec(qdisc);
}

return skb;
@@ -702,7 +702,6 @@ static void pfifo_fast_reset(struct Qdisc *qdisc)
struct gnet_stats_queue *q = per_cpu_ptr(qdisc->cpu_qstats, i);

q->backlog = 0;
- q->qlen = 0;
}
}

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 74c0f656f28c..4dfe10b9f96c 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -440,6 +440,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
int nb = 0;
int count = 1;
int rc = NET_XMIT_SUCCESS;
+ int rc_drop = NET_XMIT_DROP;

/* Do not fool qdisc_drop_all() */
skb->prev = NULL;
@@ -479,6 +480,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
q->duplicate = 0;
rootq->enqueue(skb2, rootq, to_free);
q->duplicate = dupsave;
+ rc_drop = NET_XMIT_SUCCESS;
}

/*
@@ -491,7 +493,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
if (skb_is_gso(skb)) {
segs = netem_segment(skb, sch, to_free);
if (!segs)
- return NET_XMIT_DROP;
+ return rc_drop;
} else {
segs = skb;
}
@@ -514,8 +516,10 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
1<<(prandom_u32() % 8);
}

- if (unlikely(sch->q.qlen >= sch->limit))
- return qdisc_drop_all(skb, sch, to_free);
+ if (unlikely(sch->q.qlen >= sch->limit)) {
+ qdisc_drop_all(skb, sch, to_free);
+ return rc_drop;
+ }

qdisc_qstats_backlog_inc(sch, skb);

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e5e70cff5bb3..1b16250c5718 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1884,6 +1884,7 @@ static int sctp_sendmsg_check_sflags(struct sctp_association *asoc,

pr_debug("%s: aborting association:%p\n", __func__, asoc);
sctp_primitive_ABORT(net, asoc, chunk);
+ iov_iter_revert(&msg->msg_iter, msg_len);

return 0;
}
diff --git a/net/socket.c b/net/socket.c
index 5c820212ba81..18d27b8c2511 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -577,6 +577,7 @@ static void __sock_release(struct socket *sock, struct inode *inode)
if (inode)
inode_lock(inode);
sock->ops->release(sock);
+ sock->sk = NULL;
if (inode)
inode_unlock(inode);
sock->ops = NULL;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index e1bdaf056c8f..88c307ef1318 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -377,11 +377,13 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout)

#define tipc_wait_for_cond(sock_, timeo_, condition_) \
({ \
+ DEFINE_WAIT_FUNC(wait_, woken_wake_function); \
struct sock *sk_; \
int rc_; \
\
while ((rc_ = !(condition_))) { \
- DEFINE_WAIT_FUNC(wait_, woken_wake_function); \
+ /* coupled with smp_wmb() in tipc_sk_proto_rcv() */ \
+ smp_rmb(); \
sk_ = (sock_)->sk; \
rc_ = tipc_sk_sock_err((sock_), timeo_); \
if (rc_) \
@@ -1318,7 +1320,7 @@ static int __tipc_sendmsg(struct socket *sock, struct msghdr *m, size_t dlen)

if (unlikely(!dest)) {
dest = &tsk->peer;
- if (!syn || dest->family != AF_TIPC)
+ if (!syn && dest->family != AF_TIPC)
return -EDESTADDRREQ;
}

@@ -1961,6 +1963,8 @@ static void tipc_sk_proto_rcv(struct sock *sk,
return;
case SOCK_WAKEUP:
tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0);
+ /* coupled with smp_rmb() in tipc_wait_for_cond() */
+ smp_wmb();
tsk->cong_link_cnt--;
wakeup = true;
break;
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
index 6c5f1b2ffb74..1cbb12e284a6 100755
--- a/tools/testing/selftests/firmware/fw_lib.sh
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -91,7 +91,7 @@ verify_reqs()
if [ "$TEST_REQS_FW_SYSFS_FALLBACK" = "yes" ]; then
if [ ! "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
echo "usermode helper disabled so ignoring test"
- exit $ksft_skip
+ exit 0
fi
fi
}
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