Re: Linux 5.0.1

From: Greg KH
Date: Sun Mar 10 2019 - 01:55:37 EST

diff --git a/Makefile b/Makefile
index d5713e7b1e50..3cd7163fe164 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 0
-SUBLEVEL = 0
+SUBLEVEL = 1
EXTRAVERSION =
NAME = Shy Crocodile

diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 7b56a53be5e3..e09558edae73 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -451,3 +451,4 @@
520 common preadv2 sys_preadv2
521 common pwritev2 sys_pwritev2
522 common statx sys_statx
+523 common io_pgetevents sys_io_pgetevents
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 69f6bbb41be0..01004bfb1a1b 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -819,11 +819,9 @@ 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 74969a437a37..2e73395f0560 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -321,8 +321,8 @@ 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/android/binder.c b/drivers/android/binder.c
index 4d2b2ad1ee0e..01f80cbd2741 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -329,6 +329,8 @@ struct binder_error {
* (invariant after initialized)
* @min_priority: minimum scheduling priority
* (invariant after initialized)
+ * @txn_security_ctx: require sender's security context
+ * (invariant after initialized)
* @async_todo: list of async work items
* (protected by @proc->inner_lock)
*
@@ -365,6 +367,7 @@ struct binder_node {
* invariant after initialization
*/
u8 accept_fds:1;
+ u8 txn_security_ctx:1;
u8 min_priority;
};
bool has_async_transaction;
@@ -615,6 +618,7 @@ struct binder_transaction {
long saved_priority;
kuid_t sender_euid;
struct list_head fd_fixups;
+ binder_uintptr_t security_ctx;
/**
* @lock: protects @from, @to_proc, and @to_thread
*
@@ -1152,6 +1156,7 @@ static struct binder_node *binder_init_node_ilocked(
node->work.type = BINDER_WORK_NODE;
node->min_priority = flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
node->accept_fds = !!(flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
+ node->txn_security_ctx = !!(flags & FLAT_BINDER_FLAG_TXN_SECURITY_CTX);
spin_lock_init(&node->lock);
INIT_LIST_HEAD(&node->work.entry);
INIT_LIST_HEAD(&node->async_todo);
@@ -2778,6 +2783,8 @@ static void binder_transaction(struct binder_proc *proc,
binder_size_t last_fixup_min_off = 0;
struct binder_context *context = proc->context;
int t_debug_id = atomic_inc_return(&binder_last_id);
+ char *secctx = NULL;
+ u32 secctx_sz = 0;

e = binder_transaction_log_add(&binder_transaction_log);
e->debug_id = t_debug_id;
@@ -3020,6 +3027,20 @@ static void binder_transaction(struct binder_proc *proc,
t->flags = tr->flags;
t->priority = task_nice(current);

+ if (target_node && target_node->txn_security_ctx) {
+ u32 secid;
+
+ security_task_getsecid(proc->tsk, &secid);
+ ret = security_secid_to_secctx(secid, &secctx, &secctx_sz);
+ if (ret) {
+ return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
+ goto err_get_secctx_failed;
+ }
+ extra_buffers_size += ALIGN(secctx_sz, sizeof(u64));
+ }
+
trace_binder_transaction(reply, t, target_node);

t->buffer = binder_alloc_new_buf(&target_proc->alloc, tr->data_size,
@@ -3036,6 +3057,19 @@ static void binder_transaction(struct binder_proc *proc,
t->buffer = NULL;
goto err_binder_alloc_buf_failed;
}
+ if (secctx) {
+ size_t buf_offset = ALIGN(tr->data_size, sizeof(void *)) +
+ ALIGN(tr->offsets_size, sizeof(void *)) +
+ ALIGN(extra_buffers_size, sizeof(void *)) -
+ ALIGN(secctx_sz, sizeof(u64));
+ char *kptr = t->buffer->data + buf_offset;
+
+ t->security_ctx = (uintptr_t)kptr +
+ binder_alloc_get_user_buffer_offset(&target_proc->alloc);
+ memcpy(kptr, secctx, secctx_sz);
+ security_release_secctx(secctx, secctx_sz);
+ secctx = NULL;
+ }
t->buffer->debug_id = t->debug_id;
t->buffer->transaction = t;
t->buffer->target_node = target_node;
@@ -3305,6 +3339,9 @@ static void binder_transaction(struct binder_proc *proc,
t->buffer->transaction = NULL;
binder_alloc_free_buf(&target_proc->alloc, t->buffer);
err_binder_alloc_buf_failed:
+ if (secctx)
+ security_release_secctx(secctx, secctx_sz);
+err_get_secctx_failed:
kfree(tcomplete);
binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
err_alloc_tcomplete_failed:
@@ -4036,11 +4073,13 @@ static int binder_thread_read(struct binder_proc *proc,

while (1) {
uint32_t cmd;
- struct binder_transaction_data tr;
+ struct binder_transaction_data_secctx tr;
+ struct binder_transaction_data *trd = &tr.transaction_data;
struct binder_work *w = NULL;
struct list_head *list = NULL;
struct binder_transaction *t = NULL;
struct binder_thread *t_from;
+ size_t trsize = sizeof(*trd);

binder_inner_proc_lock(proc);
if (!binder_worklist_empty_ilocked(&thread->todo))
@@ -4240,8 +4279,8 @@ static int binder_thread_read(struct binder_proc *proc,
if (t->buffer->target_node) {
struct binder_node *target_node = t->buffer->target_node;

- tr.target.ptr = target_node->ptr;
- tr.cookie = target_node->cookie;
+ trd->target.ptr = target_node->ptr;
+ trd->cookie = target_node->cookie;
t->saved_priority = task_nice(current);
if (t->priority < target_node->min_priority &&
!(t->flags & TF_ONE_WAY))
@@ -4251,22 +4290,23 @@ static int binder_thread_read(struct binder_proc *proc,
binder_set_nice(target_node->min_priority);
cmd = BR_TRANSACTION;
} else {
- tr.target.ptr = 0;
- tr.cookie = 0;
+ trd->target.ptr = 0;
+ trd->cookie = 0;
cmd = BR_REPLY;
}
- tr.code = t->code;
- tr.flags = t->flags;
- tr.sender_euid = from_kuid(current_user_ns(), t->sender_euid);
+ trd->code = t->code;
+ trd->flags = t->flags;
+ trd->sender_euid = from_kuid(current_user_ns(), t->sender_euid);

t_from = binder_get_txn_from(t);
if (t_from) {
struct task_struct *sender = t_from->proc->tsk;

- tr.sender_pid = task_tgid_nr_ns(sender,
- task_active_pid_ns(current));
+ trd->sender_pid =
+ task_tgid_nr_ns(sender,
+ task_active_pid_ns(current));
} else {
- tr.sender_pid = 0;
+ trd->sender_pid = 0;
}

ret = binder_apply_fd_fixups(t);
@@ -4297,15 +4337,20 @@ static int binder_thread_read(struct binder_proc *proc,
}
continue;
}
- tr.data_size = t->buffer->data_size;
- tr.offsets_size = t->buffer->offsets_size;
- tr.data.ptr.buffer = (binder_uintptr_t)
+ trd->data_size = t->buffer->data_size;
+ trd->offsets_size = t->buffer->offsets_size;
+ trd->data.ptr.buffer = (binder_uintptr_t)
((uintptr_t)t->buffer->data +
binder_alloc_get_user_buffer_offset(&proc->alloc));
- tr.data.ptr.offsets = tr.data.ptr.buffer +
+ trd->data.ptr.offsets = trd->data.ptr.buffer +
ALIGN(t->buffer->data_size,
sizeof(void *));

+ tr.secctx = t->security_ctx;
+ if (t->security_ctx) {
+ cmd = BR_TRANSACTION_SEC_CTX;
+ trsize = sizeof(tr);
+ }
if (put_user(cmd, (uint32_t __user *)ptr)) {
if (t_from)
binder_thread_dec_tmpref(t_from);
@@ -4316,7 +4361,7 @@ static int binder_thread_read(struct binder_proc *proc,
return -EFAULT;
}
ptr += sizeof(uint32_t);
- if (copy_to_user(ptr, &tr, sizeof(tr))) {
+ if (copy_to_user(ptr, &tr, trsize)) {
if (t_from)
binder_thread_dec_tmpref(t_from);

@@ -4325,7 +4370,7 @@ static int binder_thread_read(struct binder_proc *proc,

return -EFAULT;
}
- ptr += sizeof(tr);
+ ptr += trsize;

trace_binder_transaction_received(t);
binder_stat_br(proc, thread, cmd);
@@ -4333,16 +4378,18 @@ static int binder_thread_read(struct binder_proc *proc,
"%d:%d %s %d %d:%d, cmd %d size %zd-%zd ptr %016llx-%016llx\n",
proc->pid, thread->pid,
(cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
- "BR_REPLY",
+ (cmd == BR_TRANSACTION_SEC_CTX) ?
+ "BR_TRANSACTION_SEC_CTX" : "BR_REPLY",
t->debug_id, t_from ? t_from->proc->pid : 0,
t_from ? t_from->pid : 0, cmd,
t->buffer->data_size, t->buffer->offsets_size,
- (u64)tr.data.ptr.buffer, (u64)tr.data.ptr.offsets);
+ (u64)trd->data.ptr.buffer,
+ (u64)trd->data.ptr.offsets);

if (t_from)
binder_thread_dec_tmpref(t_from);
t->buffer->allow_user_free = 1;
- if (cmd == BR_TRANSACTION && !(t->flags & TF_ONE_WAY)) {
+ if (cmd != BR_REPLY && !(t->flags & TF_ONE_WAY)) {
binder_inner_proc_lock(thread->proc);
t->to_parent = thread->transaction_stack;
t->to_thread = thread;
@@ -4690,7 +4737,8 @@ static int binder_ioctl_write_read(struct file *filp,
return ret;
}

-static int binder_ioctl_set_ctx_mgr(struct file *filp)
+static int binder_ioctl_set_ctx_mgr(struct file *filp,
+ struct flat_binder_object *fbo)
{
int ret = 0;
struct binder_proc *proc = filp->private_data;
@@ -4719,7 +4767,7 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp)
} else {
context->binder_context_mgr_uid = curr_euid;
}
- new_node = binder_new_node(proc, NULL);
+ new_node = binder_new_node(proc, fbo);
if (!new_node) {
ret = -ENOMEM;
goto out;
@@ -4842,8 +4890,20 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
binder_inner_proc_unlock(proc);
break;
}
+ case BINDER_SET_CONTEXT_MGR_EXT: {
+ struct flat_binder_object fbo;
+
+ if (copy_from_user(&fbo, ubuf, sizeof(fbo))) {
+ ret = -EINVAL;
+ goto err;
+ }
+ ret = binder_ioctl_set_ctx_mgr(filp, &fbo);
+ if (ret)
+ goto err;
+ break;
+ }
case BINDER_SET_CONTEXT_MGR:
- ret = binder_ioctl_set_ctx_mgr(filp);
+ ret = binder_ioctl_set_ctx_mgr(filp, NULL);
if (ret)
goto err;
break;
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 8ac10af17c00..d62487d02455 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -968,9 +968,9 @@ static void __device_release_driver(struct device *dev, struct device *parent)
drv->remove(dev);

device_links_driver_cleanup(dev);
- arch_teardown_dma_ops(dev);

devres_release_all(dev);
+ arch_teardown_dma_ops(dev);
dev->driver = NULL;
dev_set_drvdata(dev, NULL);
if (dev->pm_domain && dev->pm_domain->dismiss)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 41405de27d66..c91bba00df4e 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -552,10 +552,9 @@ 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) {
@@ -610,6 +609,11 @@ 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 e35a886e00bc..ef0e33e21b98 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 dd66decf2087..5ab6a4fe93aa 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -895,7 +895,7 @@ 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); \
}
@@ -904,7 +904,7 @@ 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;

@@ -915,7 +915,7 @@ 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);
@@ -929,7 +929,7 @@ 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;
@@ -955,7 +955,7 @@ 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;
@@ -976,7 +976,7 @@ 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;

@@ -998,7 +998,7 @@ 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;
@@ -1045,7 +1045,7 @@ 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;
@@ -1075,7 +1075,7 @@ 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;
@@ -1107,12 +1107,13 @@ 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 226f6e6fe01b..8e3f6a776e02 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 7e3c00bd9532..76cc163b3cf1 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4222,7 +4222,7 @@ 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,
@@ -4245,7 +4245,7 @@ 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,
@@ -4268,7 +4268,7 @@ 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,
@@ -4315,7 +4315,7 @@ 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,
@@ -4477,7 +4477,7 @@ 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,
@@ -4500,7 +4500,7 @@ 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,
@@ -4847,6 +4847,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
if (err)
goto out;

+ mv88e6xxx_ports_cmode_init(chip);
mv88e6xxx_phy_init(chip);

if (chip->info->ops->get_eeprom) {
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 79ab51e69aee..184c2b1b3115 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);
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 57727fe1501e..8b3495ee2b6e 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)");

@@ -4917,6 +4918,24 @@ 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;
@@ -5028,6 +5047,9 @@ 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/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index ca3ea2fbfcd0..80d87798c62b 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -267,6 +267,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
struct phy *serdes;
void __iomem *regs;
char res_name[8];
+ int phy_mode;
u32 port;

if (of_property_read_u32(portnp, "reg", &port))
@@ -292,11 +293,11 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
if (err)
return err;

- err = of_get_phy_mode(portnp);
- if (err < 0)
+ phy_mode = of_get_phy_mode(portnp);
+ if (phy_mode < 0)
ocelot->ports[port]->phy_mode = PHY_INTERFACE_MODE_NA;
else
- ocelot->ports[port]->phy_mode = err;
+ ocelot->ports[port]->phy_mode = phy_mode;

switch (ocelot->ports[port]->phy_mode) {
case PHY_INTERFACE_MODE_NA:
@@ -304,6 +305,13 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
case PHY_INTERFACE_MODE_SGMII:
break;
case PHY_INTERFACE_MODE_QSGMII:
+ /* Ensure clock signals and speed is set on all
+ * QSGMII links
+ */
+ ocelot_port_writel(ocelot->ports[port],
+ DEV_CLOCK_CFG_LINK_SPEED
+ (OCELOT_SPEED_1000),
+ DEV_CLOCK_CFG);
break;
default:
dev_err(ocelot->dev,
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/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 18af2f8eee96..74bebbdb4b15 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/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 90a8a9f1ac7d..910826df4a31 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 0383f7548d48..20f2103a4ebf 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -223,10 +223,10 @@ 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 e70a461e723f..405573e927cf 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -656,6 +656,7 @@ 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/inode.c b/drivers/staging/erofs/inode.c
index d7fbf5f4600f..f99954dbfdb5 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -185,16 +185,16 @@ static int fill_inode(struct inode *inode, int isdir)
/* setup the new inode */
if (S_ISREG(inode->i_mode)) {
#ifdef CONFIG_EROFS_FS_XATTR
- if (vi->xattr_isize)
- inode->i_op = &erofs_generic_xattr_iops;
+ inode->i_op = &erofs_generic_xattr_iops;
#endif
inode->i_fop = &generic_ro_fops;
} else if (S_ISDIR(inode->i_mode)) {
inode->i_op =
#ifdef CONFIG_EROFS_FS_XATTR
- vi->xattr_isize ? &erofs_dir_xattr_iops :
-#endif
+ &erofs_dir_xattr_iops;
+#else
&erofs_dir_iops;
+#endif
inode->i_fop = &erofs_dir_fops;
} else if (S_ISLNK(inode->i_mode)) {
/* by default, page_get_link is used for symlink */
diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
index e049d00c087a..16249d7f0895 100644
--- a/drivers/staging/erofs/internal.h
+++ b/drivers/staging/erofs/internal.h
@@ -354,12 +354,17 @@ static inline erofs_off_t iloc(struct erofs_sb_info *sbi, erofs_nid_t nid)
return blknr_to_addr(sbi->meta_blkaddr) + (nid << sbi->islotbits);
}

-#define inode_set_inited_xattr(inode) (EROFS_V(inode)->flags |= 1)
-#define inode_has_inited_xattr(inode) (EROFS_V(inode)->flags & 1)
+/* atomic flag definitions */
+#define EROFS_V_EA_INITED_BIT 0
+
+/* bitlock definitions (arranged in reverse order) */
+#define EROFS_V_BL_XATTR_BIT (BITS_PER_LONG - 1)

struct erofs_vnode {
erofs_nid_t nid;
- unsigned int flags;
+
+ /* atomic flags (including bitlocks) */
+ unsigned long flags;

unsigned char data_mapping_mode;
/* inline size in bytes */
diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c
index 4ac1099a39c6..ca2e8fd78959 100644
--- a/drivers/staging/erofs/unzip_vle.c
+++ b/drivers/staging/erofs/unzip_vle.c
@@ -107,15 +107,30 @@ 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
@@ -315,10 +330,10 @@ 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);

@@ -332,6 +347,9 @@ static inline bool try_to_claim_workgroup(

*owned_head = &grp->next;
*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,
@@ -341,12 +359,11 @@ static inline bool try_to_claim_workgroup(
if (cmpxchg(&grp->next, Z_EROFS_VLE_WORKGRP_TAIL,
*owned_head) != Z_EROFS_VLE_WORKGRP_TAIL)
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 */
}

struct z_erofs_vle_work_finder {
@@ -424,12 +441,9 @@ z_erofs_vle_work_lookup(const struct z_erofs_vle_work_finder *f)
*f->hosted = false;
if (!primary)
*f->role = Z_EROFS_VLE_WORK_SECONDARY;
- /* claim the workgroup if possible */
- else if (try_to_claim_workgroup(grp, f->owned_head, f->hosted))
- *f->role = Z_EROFS_VLE_WORK_PRIMARY_FOLLOWED;
- else
- *f->role = Z_EROFS_VLE_WORK_PRIMARY;
-
+ else /* claim the workgroup if possible */
+ *f->role = try_to_claim_workgroup(grp, f->owned_head,
+ f->hosted);
return work;
}

@@ -493,6 +507,9 @@ z_erofs_vle_work_register(const struct z_erofs_vle_work_finder *f,
return work;
}

+#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)

@@ -686,7 +703,7 @@ 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;

enum z_erofs_cache_alloctype cache_strategy;
@@ -704,8 +721,12 @@ 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);
@@ -719,6 +740,7 @@ 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;

@@ -740,7 +762,7 @@ static int z_erofs_do_read_page(struct z_erofs_vle_frontend *fe,
map->m_plen / PAGE_SIZE,
cache_strategy, page_pool, GFP_KERNEL);

- tight &= builder_is_followed(builder);
+ tight &= builder_is_hooked(builder);
work = builder->work;
hitted:
cur = end - min_t(unsigned int, offset + end - map->m_la, end);
@@ -755,6 +777,9 @@ 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 */
diff --git a/drivers/staging/erofs/xattr.c b/drivers/staging/erofs/xattr.c
index 80dca6a4adbe..6cb05ae31233 100644
--- a/drivers/staging/erofs/xattr.c
+++ b/drivers/staging/erofs/xattr.c
@@ -44,19 +44,48 @@ static inline void xattr_iter_end_final(struct xattr_iter *it)

static int init_inode_xattrs(struct inode *inode)
{
+ struct erofs_vnode *const vi = EROFS_V(inode);
struct xattr_iter it;
unsigned int i;
struct erofs_xattr_ibody_header *ih;
struct super_block *sb;
struct erofs_sb_info *sbi;
- struct erofs_vnode *vi;
bool atomic_map;
+ int ret = 0;

- if (likely(inode_has_inited_xattr(inode)))
+ /* the most case is that xattrs of this inode are initialized. */
+ if (test_bit(EROFS_V_EA_INITED_BIT, &vi->flags))
return 0;

- vi = EROFS_V(inode);
- BUG_ON(!vi->xattr_isize);
+ if (wait_on_bit_lock(&vi->flags, EROFS_V_BL_XATTR_BIT, TASK_KILLABLE))
+ return -ERESTARTSYS;
+
+ /* someone has initialized xattrs for us? */
+ if (test_bit(EROFS_V_EA_INITED_BIT, &vi->flags))
+ goto out_unlock;
+
+ /*
+ * bypass all xattr operations if ->xattr_isize is not greater than
+ * sizeof(struct erofs_xattr_ibody_header), in detail:
+ * 1) it is not enough to contain erofs_xattr_ibody_header then
+ * ->xattr_isize should be 0 (it means no xattr);
+ * 2) it is just to contain erofs_xattr_ibody_header, which is on-disk
+ * undefined right now (maybe use later with some new sb feature).
+ */
+ if (vi->xattr_isize == sizeof(struct erofs_xattr_ibody_header)) {
+ errln("xattr_isize %d of nid %llu is not supported yet",
+ vi->xattr_isize, vi->nid);
+ ret = -ENOTSUPP;
+ goto out_unlock;
+ } else if (vi->xattr_isize < sizeof(struct erofs_xattr_ibody_header)) {
+ if (unlikely(vi->xattr_isize)) {
+ DBG_BUGON(1);
+ ret = -EIO;
+ goto out_unlock; /* xattr ondisk layout error */
+ }
+ ret = -ENOATTR;
+ goto out_unlock;
+ }

sb = inode->i_sb;
sbi = EROFS_SB(sb);
@@ -64,8 +93,10 @@ static int init_inode_xattrs(struct inode *inode)
it.ofs = erofs_blkoff(iloc(sbi, vi->nid) + vi->inode_isize);

it.page = erofs_get_inline_page(inode, it.blkaddr);
- if (IS_ERR(it.page))
- return PTR_ERR(it.page);
+ if (IS_ERR(it.page)) {
+ ret = PTR_ERR(it.page);
+ goto out_unlock;
+ }

/* read in shared xattr array (non-atomic, see kmalloc below) */
it.kaddr = kmap(it.page);
@@ -78,7 +109,8 @@ static int init_inode_xattrs(struct inode *inode)
sizeof(uint), GFP_KERNEL);
if (vi->xattr_shared_xattrs == NULL) {
xattr_iter_end(&it, atomic_map);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out_unlock;
}

/* let's skip ibody header */
@@ -92,8 +124,12 @@ static int init_inode_xattrs(struct inode *inode)

it.page = erofs_get_meta_page(sb,
++it.blkaddr, S_ISDIR(inode->i_mode));
- if (IS_ERR(it.page))
- return PTR_ERR(it.page);
+ if (IS_ERR(it.page)) {
+ kfree(vi->xattr_shared_xattrs);
+ vi->xattr_shared_xattrs = NULL;
+ ret = PTR_ERR(it.page);
+ goto out_unlock;
+ }

it.kaddr = kmap_atomic(it.page);
atomic_map = true;
@@ -105,8 +141,11 @@ static int init_inode_xattrs(struct inode *inode)
}
xattr_iter_end(&it, atomic_map);

- inode_set_inited_xattr(inode);
- return 0;
+ set_bit(EROFS_V_EA_INITED_BIT, &vi->flags);
+
+out_unlock:
+ clear_and_wake_up_bit(EROFS_V_BL_XATTR_BIT, &vi->flags);
+ return ret;
}

/*
@@ -422,7 +461,6 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
struct dentry *unused, struct inode *inode,
const char *name, void *buffer, size_t size)
{
- struct erofs_vnode *const vi = EROFS_V(inode);
struct erofs_sb_info *const sbi = EROFS_I_SB(inode);

switch (handler->flags) {
@@ -440,9 +478,6 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
return -EINVAL;
}

- if (!vi->xattr_isize)
- return -ENOATTR;
-
return erofs_getxattr(inode, handler->flags, name, buffer, size);
}

diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 721689048648..5e5149c9a92d 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1086,8 +1086,8 @@ 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 a9ec7051f286..c2fe218e051f 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -194,6 +194,7 @@ 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/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 938ff06c0349..efb0cad8710e 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -941,9 +941,9 @@ static void tegra_xusb_powerdomain_remove(struct device *dev,
device_link_del(tegra->genpd_dl_ss);
if (tegra->genpd_dl_host)
device_link_del(tegra->genpd_dl_host);
- if (tegra->genpd_dev_ss)
+ if (!IS_ERR_OR_NULL(tegra->genpd_dev_ss))
dev_pm_domain_detach(tegra->genpd_dev_ss, true);
- if (tegra->genpd_dev_host)
+ if (!IS_ERR_OR_NULL(tegra->genpd_dev_host))
dev_pm_domain_detach(tegra->genpd_dev_host, true);
}

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 77ef4c481f3c..8f5b17471759 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1025,6 +1025,8 @@ 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 aef15497ff31..11b21d9410f3 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 aaaaf4d12c73..528d03680526 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1680,6 +1680,7 @@ 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;

@@ -1688,10 +1689,15 @@ 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 fb72d36f7823..bcf383730bea 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -932,7 +932,7 @@ 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 c86d6d8bdfed..0b427d5df0fe 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/sch_generic.h b/include/net/sch_generic.h
index 9481f2c142e2..e7eb4aa6ccc9 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -51,7 +51,10 @@ 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;
};

@@ -408,27 +411,19 @@ 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;
}
@@ -825,14 +820,14 @@ 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/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index b9ba520f7e4b..2832134e5397 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -41,6 +41,14 @@ enum {
enum {
FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
+
+ /**
+ * @FLAT_BINDER_FLAG_TXN_SECURITY_CTX: request security contexts
+ *
+ * Only when set, causes senders to include their security
+ * context
+ */
+ FLAT_BINDER_FLAG_TXN_SECURITY_CTX = 0x1000,
};

#ifdef BINDER_IPC_32BIT
@@ -218,6 +226,7 @@ struct binder_node_info_for_ref {
#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
#define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info)
#define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref)
+#define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object)

/*
* NOTE: Two special error codes you should check for when calling
@@ -276,6 +285,11 @@ struct binder_transaction_data {
} data;
};

+struct binder_transaction_data_secctx {
+ struct binder_transaction_data transaction_data;
+ binder_uintptr_t secctx;
+};
+
struct binder_transaction_data_sg {
struct binder_transaction_data transaction_data;
binder_size_t buffers_size;
@@ -311,6 +325,11 @@ enum binder_driver_return_protocol {
BR_OK = _IO('r', 1),
/* No parameters! */

+ BR_TRANSACTION_SEC_CTX = _IOR('r', 2,
+ struct binder_transaction_data_secctx),
+ /*
+ * binder_transaction_data_secctx: the received command.
+ */
BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
/*
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 27821480105e..217ef481fbbb 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 aa0db1d1bd9b..b1f49fcc0478 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 529b38996d8b..9a580999ca57 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 9bf1b9ad1780..ac679f74ba47 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -291,7 +291,6 @@ __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;
@@ -307,7 +306,6 @@ 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 ff9fd2bb4ce4..73ad7607dcd1 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/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index cc01aa3f2b5e..af91a1a402f1 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1964,10 +1964,10 @@ 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/sched/sch_generic.c b/net/sched/sch_generic.c
index 968a85fe4d4a..de31f2f3b973 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--;
@@ -645,7 +645,7 @@ 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()
*/
@@ -670,7 +670,7 @@ 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;
@@ -714,7 +714,6 @@ 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/sctp/socket.c b/net/sctp/socket.c
index 65d6d04546ae..a2771b3b3c14 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1866,6 +1866,7 @@ 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/tipc/socket.c b/net/tipc/socket.c
index 70343ac448b1..139694f2c576 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1333,7 +1333,7 @@ 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;
}

diff --git a/tools/testing/selftests/firmware/config b/tools/testing/selftests/firmware/config
index 913a25a4a32b..bf634dda0720 100644
--- a/tools/testing/selftests/firmware/config
+++ b/tools/testing/selftests/firmware/config
@@ -1,6 +1,5 @@
CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
-CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 466cf2f91ba0..a4320c4b44dc 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -155,8 +155,11 @@ read_firmwares()
{
for i in $(seq 0 3); do
config_set_read_fw_idx $i
- # Verify the contents match
- if ! diff -q "$FW" $DIR/read_firmware 2>/dev/null ; then
+ # Verify the contents are what we expect.
+ # -Z required for now -- check for yourself, md5sum
+ # on $FW and DIR/read_firmware will yield the same. Even
+ # cmp agrees, so something is off.
+ if ! diff -q -Z "$FW" $DIR/read_firmware 2>/dev/null ; then
echo "request #$i: firmware was not loaded" >&2
exit 1
fi
@@ -168,7 +171,7 @@ read_firmwares_expect_nofile()
for i in $(seq 0 3); do
config_set_read_fw_idx $i
# Ensures contents differ
- if diff -q "$FW" $DIR/read_firmware 2>/dev/null ; then
+ if diff -q -Z "$FW" $DIR/read_firmware 2>/dev/null ; then
echo "request $i: file was not expected to match" >&2
exit 1
fi
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
index 6c5f1b2ffb74..1cbb12e284a6 100755
--- a/tools/testing/selftests/firmware/fw_lib.sh
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -91,7 +91,7 @@ verify_reqs()
if [ "$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
}