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authorTakashi Iwai <tiwai@suse.de>2025-03-24 15:40:24 +0100
committerTakashi Iwai <tiwai@suse.de>2025-03-24 15:40:24 +0100
commita98a9c11a35c567afe754e2bc28d3a6ad2292928 (patch)
tree8d104f77c988645438f6be8a5e4c859982160b8d /kernel
parent41a507095040cd6eefca44e28df89303e1c642c9 (diff)
parent9ef52d529bb75071e03cf85078f724d69c4abe89 (diff)
Merge tag 'asoc-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v6.15 This is a very big release due to a combination of some big new work, mainly new drivers and generic SoundWire support, and some wide ranging cleanup work that made small changes to a lot of drivers. - Morimoto-san has completed the conversion to use modern terminology for the clocking configuration, and several other cleanups with narrower impact. - All the power management operation configuration was updated to use current idioms by Takashi Iwai. - Clarification of the control operations from Charles Keepax. - Prepartory work for more generic SoundWire SCDA controls from Charles Keepax. - Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95, nVidia Tegra interconnects, Rockchip RK3588 S/PDIF, Texas Instruments SN012776 and TAS5770L, and Wolfson WM8904 DMICs, Some changes from the tip tree adding APIs needed by the AMD code are included, these were unfortunately rebased in the tip tree after being pulled in. There's also some regmap changes supporting the SCDA work and some devres refactoring that was pulled in to support other changes.
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/core.c32
-rw-r--r--kernel/locking/rtmutex_common.h4
-rw-r--r--kernel/locking/semaphore.c13
-rw-r--r--kernel/pid_namespace.c2
-rw-r--r--kernel/sched/cputime.c8
-rw-r--r--kernel/sched/deadline.c2
-rw-r--r--kernel/sched/ext.c3
-rw-r--r--kernel/sched/fair.c6
-rw-r--r--kernel/sched/sched.h4
-rw-r--r--kernel/trace/trace_events_hist.c24
-rw-r--r--kernel/trace/trace_fprobe.c20
-rw-r--r--kernel/trace/trace_probe.h5
12 files changed, 95 insertions, 28 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6364319e2f88..823aa0824916 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -11830,6 +11830,21 @@ free_dev:
static struct lock_class_key cpuctx_mutex;
static struct lock_class_key cpuctx_lock;
+static bool idr_cmpxchg(struct idr *idr, unsigned long id, void *old, void *new)
+{
+ void *tmp, *val = idr_find(idr, id);
+
+ if (val != old)
+ return false;
+
+ tmp = idr_replace(idr, new, id);
+ if (IS_ERR(tmp))
+ return false;
+
+ WARN_ON_ONCE(tmp != val);
+ return true;
+}
+
int perf_pmu_register(struct pmu *pmu, const char *name, int type)
{
int cpu, ret, max = PERF_TYPE_MAX;
@@ -11856,7 +11871,7 @@ int perf_pmu_register(struct pmu *pmu, const char *name, int type)
if (type >= 0)
max = type;
- ret = idr_alloc(&pmu_idr, pmu, max, 0, GFP_KERNEL);
+ ret = idr_alloc(&pmu_idr, NULL, max, 0, GFP_KERNEL);
if (ret < 0)
goto free_pdc;
@@ -11864,6 +11879,7 @@ int perf_pmu_register(struct pmu *pmu, const char *name, int type)
type = ret;
pmu->type = type;
+ atomic_set(&pmu->exclusive_cnt, 0);
if (pmu_bus_running && !pmu->dev) {
ret = pmu_dev_alloc(pmu);
@@ -11912,14 +11928,22 @@ int perf_pmu_register(struct pmu *pmu, const char *name, int type)
if (!pmu->event_idx)
pmu->event_idx = perf_event_idx_default;
+ /*
+ * Now that the PMU is complete, make it visible to perf_try_init_event().
+ */
+ if (!idr_cmpxchg(&pmu_idr, pmu->type, NULL, pmu))
+ goto free_context;
list_add_rcu(&pmu->entry, &pmus);
- atomic_set(&pmu->exclusive_cnt, 0);
+
ret = 0;
unlock:
mutex_unlock(&pmus_lock);
return ret;
+free_context:
+ free_percpu(pmu->cpu_pmu_context);
+
free_dev:
if (pmu->dev && pmu->dev != PMU_NULL_DEV) {
device_del(pmu->dev);
@@ -11939,6 +11963,8 @@ void perf_pmu_unregister(struct pmu *pmu)
{
mutex_lock(&pmus_lock);
list_del_rcu(&pmu->entry);
+ idr_remove(&pmu_idr, pmu->type);
+ mutex_unlock(&pmus_lock);
/*
* We dereference the pmu list under both SRCU and regular RCU, so
@@ -11948,7 +11974,6 @@ void perf_pmu_unregister(struct pmu *pmu)
synchronize_rcu();
free_percpu(pmu->pmu_disable_count);
- idr_remove(&pmu_idr, pmu->type);
if (pmu_bus_running && pmu->dev && pmu->dev != PMU_NULL_DEV) {
if (pmu->nr_addr_filters)
device_remove_file(pmu->dev, &dev_attr_nr_addr_filters);
@@ -11956,7 +11981,6 @@ void perf_pmu_unregister(struct pmu *pmu)
put_device(pmu->dev);
}
free_pmu_context(pmu);
- mutex_unlock(&pmus_lock);
}
EXPORT_SYMBOL_GPL(perf_pmu_unregister);
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index c38a2d2d4a7e..78dd3d8c6554 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -59,8 +59,8 @@ struct rt_mutex_waiter {
};
/**
- * rt_wake_q_head - Wrapper around regular wake_q_head to support
- * "sleeping" spinlocks on RT
+ * struct rt_wake_q_head - Wrapper around regular wake_q_head to support
+ * "sleeping" spinlocks on RT
* @head: The regular wake_q_head for sleeping lock variants
* @rtlock_task: Task pointer for RT lock (spin/rwlock) wakeups
*/
diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c
index 34bfae72f295..de9117c0e671 100644
--- a/kernel/locking/semaphore.c
+++ b/kernel/locking/semaphore.c
@@ -29,6 +29,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/wake_q.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/ftrace.h>
@@ -38,7 +39,7 @@ static noinline void __down(struct semaphore *sem);
static noinline int __down_interruptible(struct semaphore *sem);
static noinline int __down_killable(struct semaphore *sem);
static noinline int __down_timeout(struct semaphore *sem, long timeout);
-static noinline void __up(struct semaphore *sem);
+static noinline void __up(struct semaphore *sem, struct wake_q_head *wake_q);
/**
* down - acquire the semaphore
@@ -183,13 +184,16 @@ EXPORT_SYMBOL(down_timeout);
void __sched up(struct semaphore *sem)
{
unsigned long flags;
+ DEFINE_WAKE_Q(wake_q);
raw_spin_lock_irqsave(&sem->lock, flags);
if (likely(list_empty(&sem->wait_list)))
sem->count++;
else
- __up(sem);
+ __up(sem, &wake_q);
raw_spin_unlock_irqrestore(&sem->lock, flags);
+ if (!wake_q_empty(&wake_q))
+ wake_up_q(&wake_q);
}
EXPORT_SYMBOL(up);
@@ -269,11 +273,12 @@ static noinline int __sched __down_timeout(struct semaphore *sem, long timeout)
return __down_common(sem, TASK_UNINTERRUPTIBLE, timeout);
}
-static noinline void __sched __up(struct semaphore *sem)
+static noinline void __sched __up(struct semaphore *sem,
+ struct wake_q_head *wake_q)
{
struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list,
struct semaphore_waiter, list);
list_del(&waiter->list);
waiter->up = true;
- wake_up_process(waiter->task);
+ wake_q_add(wake_q, waiter->task);
}
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 8f6cfec87555..7098ed44e717 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -107,7 +107,7 @@ static struct pid_namespace *create_pid_namespace(struct user_namespace *user_ns
goto out_free_idr;
ns->ns.ops = &pidns_operations;
- ns->pid_max = parent_pid_ns->pid_max;
+ ns->pid_max = PID_MAX_LIMIT;
err = register_pidns_sysctls(ns);
if (err)
goto out_free_inum;
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 5d9143dd0879..6dab4854c6c0 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -9,8 +9,6 @@
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
-DEFINE_STATIC_KEY_FALSE(sched_clock_irqtime);
-
/*
* There are no locks covering percpu hardirq/softirq time.
* They are only modified in vtime_account, on corresponding CPU
@@ -24,14 +22,16 @@ DEFINE_STATIC_KEY_FALSE(sched_clock_irqtime);
*/
DEFINE_PER_CPU(struct irqtime, cpu_irqtime);
+int sched_clock_irqtime;
+
void enable_sched_clock_irqtime(void)
{
- static_branch_enable(&sched_clock_irqtime);
+ sched_clock_irqtime = 1;
}
void disable_sched_clock_irqtime(void)
{
- static_branch_disable(&sched_clock_irqtime);
+ sched_clock_irqtime = 0;
}
static void irqtime_account_delta(struct irqtime *irqtime, u64 delta,
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 38e4537790af..ff4df16b5186 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -3189,7 +3189,7 @@ int sched_dl_global_validate(void)
* value smaller than the currently allocated bandwidth in
* any of the root_domains.
*/
- for_each_possible_cpu(cpu) {
+ for_each_online_cpu(cpu) {
rcu_read_lock_sched();
if (dl_bw_visited(cpu, gen))
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index 0f1da199cfc7..7b9dfee858e7 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -6422,6 +6422,9 @@ static bool check_builtin_idle_enabled(void)
__bpf_kfunc s32 scx_bpf_select_cpu_dfl(struct task_struct *p, s32 prev_cpu,
u64 wake_flags, bool *is_idle)
{
+ if (!ops_cpu_valid(prev_cpu, NULL))
+ goto prev_cpu;
+
if (!check_builtin_idle_enabled())
goto prev_cpu;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1c0ef435a7aa..c798d2795243 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4045,15 +4045,17 @@ static inline bool child_cfs_rq_on_list(struct cfs_rq *cfs_rq)
{
struct cfs_rq *prev_cfs_rq;
struct list_head *prev;
+ struct rq *rq = rq_of(cfs_rq);
if (cfs_rq->on_list) {
prev = cfs_rq->leaf_cfs_rq_list.prev;
} else {
- struct rq *rq = rq_of(cfs_rq);
-
prev = rq->tmp_alone_branch;
}
+ if (prev == &rq->leaf_cfs_rq_list)
+ return false;
+
prev_cfs_rq = container_of(prev, struct cfs_rq, leaf_cfs_rq_list);
return (prev_cfs_rq->tg->parent == cfs_rq->tg);
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index c8512a9fb022..023b844159c9 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3259,11 +3259,11 @@ struct irqtime {
};
DECLARE_PER_CPU(struct irqtime, cpu_irqtime);
-DECLARE_STATIC_KEY_FALSE(sched_clock_irqtime);
+extern int sched_clock_irqtime;
static inline int irqtime_enabled(void)
{
- return static_branch_likely(&sched_clock_irqtime);
+ return sched_clock_irqtime;
}
/*
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index ad7419e24055..53dc6719181e 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -5689,12 +5689,16 @@ static int event_hist_open(struct inode *inode, struct file *file)
guard(mutex)(&event_mutex);
event_file = event_file_data(file);
- if (!event_file)
- return -ENODEV;
+ if (!event_file) {
+ ret = -ENODEV;
+ goto err;
+ }
hist_file = kzalloc(sizeof(*hist_file), GFP_KERNEL);
- if (!hist_file)
- return -ENOMEM;
+ if (!hist_file) {
+ ret = -ENOMEM;
+ goto err;
+ }
hist_file->file = file;
hist_file->last_act = get_hist_hit_count(event_file);
@@ -5702,9 +5706,14 @@ static int event_hist_open(struct inode *inode, struct file *file)
/* Clear private_data to avoid warning in single_open() */
file->private_data = NULL;
ret = single_open(file, hist_show, hist_file);
- if (ret)
+ if (ret) {
kfree(hist_file);
+ goto err;
+ }
+ return 0;
+err:
+ tracing_release_file_tr(inode, file);
return ret;
}
@@ -5979,7 +5988,10 @@ static int event_hist_debug_open(struct inode *inode, struct file *file)
/* Clear private_data to avoid warning in single_open() */
file->private_data = NULL;
- return single_open(file, hist_debug_show, file);
+ ret = single_open(file, hist_debug_show, file);
+ if (ret)
+ tracing_release_file_tr(inode, file);
+ return ret;
}
const struct file_operations event_hist_debug_fops = {
diff --git a/kernel/trace/trace_fprobe.c b/kernel/trace/trace_fprobe.c
index b8f3c4ba309b..e27305d31fc5 100644
--- a/kernel/trace/trace_fprobe.c
+++ b/kernel/trace/trace_fprobe.c
@@ -1049,6 +1049,19 @@ static int parse_symbol_and_return(int argc, const char *argv[],
if (*is_return)
return 0;
+ if (is_tracepoint) {
+ tmp = *symbol;
+ while (*tmp && (isalnum(*tmp) || *tmp == '_'))
+ tmp++;
+ if (*tmp) {
+ /* find a wrong character. */
+ trace_probe_log_err(tmp - *symbol, BAD_TP_NAME);
+ kfree(*symbol);
+ *symbol = NULL;
+ return -EINVAL;
+ }
+ }
+
/* If there is $retval, this should be a return fprobe. */
for (i = 2; i < argc; i++) {
tmp = strstr(argv[i], "$retval");
@@ -1056,6 +1069,8 @@ static int parse_symbol_and_return(int argc, const char *argv[],
if (is_tracepoint) {
trace_probe_log_set_index(i);
trace_probe_log_err(tmp - argv[i], RETVAL_ON_PROBE);
+ kfree(*symbol);
+ *symbol = NULL;
return -EINVAL;
}
*is_return = true;
@@ -1215,6 +1230,11 @@ static int trace_fprobe_create_internal(int argc, const char *argv[],
if (is_return && tf->tp.entry_arg) {
tf->fp.entry_handler = trace_fprobe_entry_handler;
tf->fp.entry_data_size = traceprobe_get_entry_data_size(&tf->tp);
+ if (ALIGN(tf->fp.entry_data_size, sizeof(long)) > MAX_FPROBE_DATA_SIZE) {
+ trace_probe_log_set_index(2);
+ trace_probe_log_err(0, TOO_MANY_EARGS);
+ return -E2BIG;
+ }
}
ret = traceprobe_set_print_fmt(&tf->tp,
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 5803e6a41570..96792bc4b092 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -36,7 +36,6 @@
#define MAX_BTF_ARGS_LEN 128
#define MAX_DENTRY_ARGS_LEN 256
#define MAX_STRING_SIZE PATH_MAX
-#define MAX_ARG_BUF_LEN (MAX_TRACE_ARGS * MAX_ARG_NAME_LEN)
/* Reserved field names */
#define FIELD_STRING_IP "__probe_ip"
@@ -481,6 +480,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call,
C(NON_UNIQ_SYMBOL, "The symbol is not unique"), \
C(BAD_RETPROBE, "Retprobe address must be an function entry"), \
C(NO_TRACEPOINT, "Tracepoint is not found"), \
+ C(BAD_TP_NAME, "Invalid character in tracepoint name"),\
C(BAD_ADDR_SUFFIX, "Invalid probed address suffix"), \
C(NO_GROUP_NAME, "Group name is not specified"), \
C(GROUP_TOO_LONG, "Group name is too long"), \
@@ -544,7 +544,8 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call,
C(NO_BTF_FIELD, "This field is not found."), \
C(BAD_BTF_TID, "Failed to get BTF type info."),\
C(BAD_TYPE4STR, "This type does not fit for string."),\
- C(NEED_STRING_TYPE, "$comm and immediate-string only accepts string type"),
+ C(NEED_STRING_TYPE, "$comm and immediate-string only accepts string type"),\
+ C(TOO_MANY_EARGS, "Too many entry arguments specified"),
#undef C
#define C(a, b) TP_ERR_##a