[PATCH 0/3] ASoC: cleanup mutex lock

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Kuninori Morimoto

6 Apr 2023 6 Apr '23

2:14 a.m.

Hi Mark

ASoC is using many type of mutex lock, but some of them has helper function, but some doesn't. Or, it has helper function, but is static.

This patch-set adds helper function and use it.

Kuninori Morimoto (3): ASoC: expand snd_soc_dapm_mutex_lock/unlock() ASoC: expand snd_soc_dpcm_mutex_lock/unlock() ASoC: add snd_soc_card_mutex_lock/unlock()

include/sound/soc-card.h | 17 +++++- include/sound/soc-dapm.h | 5 -- include/sound/soc.h | 105 +++++++++++++++++++++++++++++++-- sound/soc/soc-component.c | 12 ++-- sound/soc/soc-compress.c | 60 +++++++++---------- sound/soc/soc-core.c | 8 +-- sound/soc/soc-dapm.c | 119 +++++++++++++++++++------------------- sound/soc/soc-pcm.c | 17 +----- 8 files changed, 216 insertions(+), 127 deletions(-)

-- 2.25.1

Show replies by date

Kuninori Morimoto

6 Apr 6 Apr

2:15 a.m.

New subject: [PATCH 1/3] ASoC: expand snd_soc_dapm_mutex_lock/unlock()

soc.h has snd_soc_dapm_mutex_lock/unlock() definition and many drivers are using it, but soc-dapm.c is not.

1st reason is snd_soc_dapm_mutex_lock/unlock() requests snd_soc_dapm_context pointer as parameter (A), but sometimes soc-dapm.c needs to use snd_soc_card (B).

(A) static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm) { mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); } ^^^^^^^^^^

(B) mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); ^^^^

2nd reason is it want to use SND_SOC_DAPM_CLASS_INIT for mutex_lock_nested(), but helper is using _RUNTIME (A).

The conclusion is we want to use "dapm vs card" and "_RUNTIME vs _INIT" for dapm lock/unlock. To enable this selfish request, this patch uses _Generic macro. We can use snd_soc_dapm_mutex_lock/unlock() for both dapm and card case.

snd_soc_dapm_mutex_lock(dapm); snd_soc_dapm_mutex_unlock(dapm); snd_soc_dapm_mutex_lock(card); snd_soc_dapm_mutex_unlock(card);

Current soc-dapm.c is using both mutex_lock() and mutex_lock_nested(). This patch handles mutex_lock() as mutex_lock_nested(..., 0), in other words, handles below as same.

mutex_lock(&card->dapm_mutex); mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);

Because people might misunderstand that _init() is mutex initialization, this patch renames _INIT to _ROOT and adds new snd_soc_dapm_mutex_lock_root() for it.

This patch also moves snd_soc_dapm_subclass definition from soc-dapm.h to soc.h to keep related code together.

Because very complex soc.h vs soc-dapm.h relationship, it is difficult/impossible to define these helper into soc-dapm.h.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc-dapm.h | 5 -- include/sound/soc.h | 60 ++++++++++++++++++-- sound/soc/soc-dapm.c | 119 +++++++++++++++++++-------------------- 3 files changed, 113 insertions(+), 71 deletions(-)

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 64915ebd641e..87f8e1793af1 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -527,11 +527,6 @@ enum snd_soc_dapm_type { SND_SOC_DAPM_TYPE_COUNT };

-enum snd_soc_dapm_subclass { - SND_SOC_DAPM_CLASS_INIT = 0, - SND_SOC_DAPM_CLASS_RUNTIME = 1, -}; - /* * DAPM audio route definition. * diff --git a/include/sound/soc.h b/include/sound/soc.h index 3833184c187f..0e17e3230c7a 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1364,17 +1364,67 @@ extern struct dentry *snd_soc_debugfs_root;

extern const struct dev_pm_ops snd_soc_pm_ops;

-/* Helper functions */ -static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm) +/* + * DAPM helper functions + */ +enum snd_soc_dapm_subclass { + SND_SOC_DAPM_CLASS_ROOT = 0, + SND_SOC_DAPM_CLASS_RUNTIME = 1, +}; + +static inline void _snd_soc_dapm_mutex_lock_root_c(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_ROOT); +} + +static inline void _snd_soc_dapm_mutex_lock_c(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); +} + +static inline void _snd_soc_dapm_mutex_unlock_c(struct snd_soc_card *card) { - mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + mutex_unlock(&card->dapm_mutex); }

-static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm) +static inline void _snd_soc_dapm_mutex_assert_held_c(struct snd_soc_card *card) { - mutex_unlock(&dapm->card->dapm_mutex); + lockdep_assert_held(&card->dapm_mutex); }

+static inline void _snd_soc_dapm_mutex_lock_root_d(struct snd_soc_dapm_context *dapm) +{ + _snd_soc_dapm_mutex_lock_root_c(dapm->card); +} + +static inline void _snd_soc_dapm_mutex_lock_d(struct snd_soc_dapm_context *dapm) +{ + _snd_soc_dapm_mutex_lock_c(dapm->card); +} + +static inline void _snd_soc_dapm_mutex_unlock_d(struct snd_soc_dapm_context *dapm) +{ + _snd_soc_dapm_mutex_unlock_c(dapm->card); +} + +static inline void _snd_soc_dapm_mutex_assert_held_d(struct snd_soc_dapm_context *dapm) +{ + _snd_soc_dapm_mutex_assert_held_c(dapm->card); +} + +#define snd_soc_dapm_mutex_lock_root(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dapm_mutex_lock_root_c, \ + struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_lock_root_d)(x) +#define snd_soc_dapm_mutex_lock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dapm_mutex_lock_c, \ + struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_lock_d)(x) +#define snd_soc_dapm_mutex_unlock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dapm_mutex_unlock_c, \ + struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_unlock_d)(x) +#define snd_soc_dapm_mutex_assert_held(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dapm_mutex_assert_held_c, \ + struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_assert_held_d)(x) + #include <sound/soc-component.h> #include <sound/soc-card.h> #include <sound/soc-jack.h> diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 36e6f261bcf7..f2f04ce693a1 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -150,7 +150,7 @@ static int dapm_down_seq[] = { static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) { if (snd_soc_card_is_instantiated(dapm->card)) - lockdep_assert_held(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_assert_held(dapm); }

static void pop_wait(u32 pop_time) @@ -302,7 +302,7 @@ void dapm_mark_endpoints_dirty(struct snd_soc_card *card) { struct snd_soc_dapm_widget *w;

- mutex_lock(&card->dapm_mutex); + snd_soc_dapm_mutex_lock_root(card);

for_each_card_widgets(card, w) { if (w->is_ep) { @@ -314,7 +314,7 @@ void dapm_mark_endpoints_dirty(struct snd_soc_card *card) } }

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); } EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty);

@@ -604,7 +604,7 @@ static void dapm_reset(struct snd_soc_card *card) { struct snd_soc_dapm_widget *w;

- lockdep_assert_held(&card->dapm_mutex); + snd_soc_dapm_mutex_assert_held(card);

memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));

@@ -1302,7 +1302,7 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, int paths; int ret;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card);

if (stream == SNDRV_PCM_STREAM_PLAYBACK) { invalidate_paths_ep(w, SND_SOC_DAPM_DIR_OUT); @@ -1322,7 +1322,7 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, paths = ret;

trace_snd_soc_dapm_connected(paths, stream); - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card);

return paths; } @@ -1952,7 +1952,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event) enum snd_soc_bias_level bias; int ret;

- lockdep_assert_held(&card->dapm_mutex); + snd_soc_dapm_mutex_assert_held(card);

trace_snd_soc_dapm_start(card);

@@ -2090,7 +2090,6 @@ static ssize_t dapm_widget_power_read_file(struct file *file, size_t count, loff_t *ppos) { struct snd_soc_dapm_widget *w = file->private_data; - struct snd_soc_card *card = w->dapm->card; enum snd_soc_dapm_direction dir, rdir; char *buf; int in, out; @@ -2101,7 +2100,7 @@ static ssize_t dapm_widget_power_read_file(struct file *file, if (!buf) return -ENOMEM;

- mutex_lock(&card->dapm_mutex); + snd_soc_dapm_mutex_lock_root(w->dapm);

/* Supply widgets are not handled by is_connected_{input,output}_ep() */ if (w->is_supply) { @@ -2145,7 +2144,7 @@ static ssize_t dapm_widget_power_read_file(struct file *file, } }

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(w->dapm);

ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);

@@ -2266,7 +2265,7 @@ static int soc_dapm_mux_update_power(struct snd_soc_card *card, int found = 0; bool connect;

- lockdep_assert_held(&card->dapm_mutex); + snd_soc_dapm_mutex_assert_held(card);

/* find dapm widget path assoc with kcontrol */ dapm_kcontrol_for_each_path(path, kcontrol) { @@ -2293,11 +2292,11 @@ int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, struct snd_soc_card *card = dapm->card; int ret;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card); card->update = update; ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); card->update = NULL; - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); if (ret > 0) snd_soc_dpcm_runtime_update(card); return ret; @@ -2312,7 +2311,7 @@ static int soc_dapm_mixer_update_power(struct snd_soc_card *card, struct snd_soc_dapm_path *path; int found = 0;

- lockdep_assert_held(&card->dapm_mutex); + snd_soc_dapm_mutex_assert_held(card);

/* find dapm widget path assoc with kcontrol */ dapm_kcontrol_for_each_path(path, kcontrol) { @@ -2358,11 +2357,11 @@ int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, struct snd_soc_card *card = dapm->card; int ret;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card); card->update = update; ret = soc_dapm_mixer_update_power(card, kcontrol, connect, -1); card->update = NULL; - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); if (ret > 0) snd_soc_dpcm_runtime_update(card); return ret; @@ -2441,7 +2440,7 @@ static ssize_t dapm_widget_show(struct device *dev, struct snd_soc_dai *codec_dai; int i, count = 0;

- mutex_lock(&rtd->card->dapm_mutex); + snd_soc_dapm_mutex_lock_root(rtd->card);

for_each_rtd_codec_dais(rtd, i, codec_dai) { struct snd_soc_component *cmpnt = codec_dai->component; @@ -2449,7 +2448,7 @@ static ssize_t dapm_widget_show(struct device *dev, count = dapm_widget_show_component(cmpnt, buf, count); }

- mutex_unlock(&rtd->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(rtd->card);

return count; } @@ -2632,9 +2631,9 @@ int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) { int ret;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); ret = snd_soc_dapm_sync_unlocked(dapm); - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm); return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); @@ -2703,9 +2702,9 @@ int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); int ret;

- mutex_lock_nested(&rtd->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(rtd->card); ret = dapm_update_dai_unlocked(substream, params, dai); - mutex_unlock(&rtd->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(rtd->card);

return ret; } @@ -3090,14 +3089,14 @@ int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, { int i, ret = 0;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); for (i = 0; i < num; i++) { int r = snd_soc_dapm_add_route(dapm, route); if (r < 0) ret = r; route++; } - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -3116,12 +3115,12 @@ int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, { int i;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); for (i = 0; i < num; i++) { snd_soc_dapm_del_route(dapm, route); route++; } - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return 0; } @@ -3194,14 +3193,14 @@ int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, int i; int ret = 0;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + snd_soc_dapm_mutex_lock_root(dapm); for (i = 0; i < num; i++) { int err = snd_soc_dapm_weak_route(dapm, route); if (err) ret = err; route++; } - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -3220,7 +3219,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card) struct snd_soc_dapm_widget *w; unsigned int val;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + snd_soc_dapm_mutex_lock_root(card);

for_each_card_widgets(card, w) { @@ -3232,7 +3231,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card) sizeof(struct snd_kcontrol *), GFP_KERNEL); if (!w->kcontrols) { - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); return -ENOMEM; } } @@ -3275,7 +3274,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card) }

dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); @@ -3293,7 +3292,6 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); - struct snd_soc_card *card = dapm->card; struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int reg = mc->reg; @@ -3304,7 +3302,7 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, unsigned int invert = mc->invert; unsigned int reg_val, val, rval = 0;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { reg_val = soc_dapm_read(dapm, reg); val = (reg_val >> shift) & mask; @@ -3321,7 +3319,7 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, if (snd_soc_volsw_is_stereo(mc)) rval = (reg_val >> width) & mask; } - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

if (invert) ucontrol->value.integer.value[0] = max - val; @@ -3379,7 +3377,7 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, rval = max - rval; }

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card);

/* This assumes field width < (bits in unsigned int / 2) */ if (width > sizeof(unsigned int) * 8 / 2) @@ -3421,7 +3419,7 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, card->update = NULL; }

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card);

if (ret > 0) snd_soc_dpcm_runtime_update(card); @@ -3443,17 +3441,16 @@ int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); - struct snd_soc_card *card = dapm->card; struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; unsigned int reg_val, val;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { reg_val = soc_dapm_read(dapm, e->reg); } else { reg_val = dapm_kcontrol_get_value(kcontrol); } - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

val = (reg_val >> e->shift_l) & e->mask; ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); @@ -3500,7 +3497,7 @@ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, mask |= e->mask << e->shift_r; }

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card);

change = dapm_kcontrol_set_value(kcontrol, val);

@@ -3521,7 +3518,7 @@ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, card->update = NULL; }

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card);

if (ret > 0) snd_soc_dpcm_runtime_update(card); @@ -3562,12 +3559,12 @@ int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); const char *pin = (const char *)kcontrol->private_value;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card);

ucontrol->value.integer.value[0] = snd_soc_dapm_get_pin_status(&card->dapm, pin);

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card);

return 0; } @@ -3586,10 +3583,10 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, const char *pin = (const char *)kcontrol->private_value; int ret;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card); ret = __snd_soc_dapm_set_pin(&card->dapm, pin, !!ucontrol->value.integer.value[0]); - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card);

snd_soc_dapm_sync(&card->dapm); return ret; @@ -3762,9 +3759,9 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, { struct snd_soc_dapm_widget *w;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm); w = snd_soc_dapm_new_control_unlocked(dapm, widget); - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return w; } @@ -3787,7 +3784,7 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, int i; int ret = 0;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + snd_soc_dapm_mutex_lock_root(dapm); for (i = 0; i < num; i++) { struct snd_soc_dapm_widget *w = snd_soc_dapm_new_control_unlocked(dapm, widget); if (IS_ERR(w)) { @@ -3796,7 +3793,7 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, } widget++; } - mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm); return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); @@ -4499,9 +4496,9 @@ void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, { struct snd_soc_card *card = rtd->card;

- mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(card); soc_dapm_stream_event(rtd, stream, event); - mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); }

void snd_soc_dapm_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream) @@ -4562,11 +4559,11 @@ int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) { int ret;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm);

ret = snd_soc_dapm_set_pin(dapm, pin, 1);

- mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -4630,11 +4627,11 @@ int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, { int ret;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm);

ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);

- mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -4674,11 +4671,11 @@ int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, { int ret;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm);

ret = snd_soc_dapm_set_pin(dapm, pin, 0);

- mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -4725,11 +4722,11 @@ int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) { int ret;

- mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + snd_soc_dapm_mutex_lock(dapm);

ret = snd_soc_dapm_set_pin(dapm, pin, 0);

- mutex_unlock(&dapm->card->dapm_mutex); + snd_soc_dapm_mutex_unlock(dapm);

return ret; } @@ -4826,7 +4823,7 @@ static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) LIST_HEAD(down_list); int powerdown = 0;

- mutex_lock(&card->dapm_mutex); + snd_soc_dapm_mutex_lock_root(card);

for_each_card_widgets(dapm->card, w) { if (w->dapm != dapm) @@ -4851,7 +4848,7 @@ static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) SND_SOC_BIAS_STANDBY); }

- mutex_unlock(&card->dapm_mutex); + snd_soc_dapm_mutex_unlock(card); }

-- 2.25.1

Kuninori Morimoto

2:16 a.m.

New subject: [PATCH 2/3] ASoC: expand snd_soc_dpcm_mutex_lock/unlock()

soc-pcm.c has snd_soc_dpcm_mutex_lock/unlock(), but other files can't use it because it is static function.

It requests snd_soc_pcm_runtime as parameter (A), but sometimes we want to use it by snd_soc_card (B).

(A) static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd) { mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); } ^^^^^^^^^

(B) mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); ^^^^

We want to use it with both "rtd" and "card" for dapm lock/unlock. To enable it, this patch uses _Generic macro.

This patch makes snd_soc_dpcm_mutex_{un}lock() global function, and use it on each files.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc.h | 45 +++++++++++++++++++++++++++++++++++++++ sound/soc/soc-component.c | 12 +++++------ sound/soc/soc-compress.c | 42 ++++++++++++++++++------------------ sound/soc/soc-core.c | 4 ++-- sound/soc/soc-pcm.c | 17 ++------------- 5 files changed, 76 insertions(+), 44 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h index 0e17e3230c7a..05004c048dd5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1425,6 +1425,51 @@ static inline void _snd_soc_dapm_mutex_assert_held_d(struct snd_soc_dapm_context struct snd_soc_card * : _snd_soc_dapm_mutex_assert_held_c, \ struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_assert_held_d)(x)

+/* + * PCM helper functions + */ +static inline void _snd_soc_dpcm_mutex_lock_c(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); +} + +static inline void _snd_soc_dpcm_mutex_unlock_c(struct snd_soc_card *card) +{ + mutex_unlock(&card->pcm_mutex); +} + +static inline void _snd_soc_dpcm_mutex_assert_held_c(struct snd_soc_card *card) +{ + lockdep_assert_held(&card->pcm_mutex); +} + +static inline void _snd_soc_dpcm_mutex_lock_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_lock_c(rtd->card); +} + +static inline void _snd_soc_dpcm_mutex_unlock_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_unlock_c(rtd->card); +} + +static inline void _snd_soc_dpcm_mutex_assert_held_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_assert_held_c(rtd->card); +} + +#define snd_soc_dpcm_mutex_lock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_lock_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_lock_r)(x) + +#define snd_soc_dpcm_mutex_unlock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_unlock_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_unlock_r)(x) + +#define snd_soc_dpcm_mutex_assert_held(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_assert_held_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_assert_held_r)(x) + #include <sound/soc-component.h> #include <sound/soc-card.h> #include <sound/soc-jack.h> diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 3cd6952212e1..ff25718ff2e8 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -550,7 +550,7 @@ int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -561,7 +561,7 @@ int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } @@ -574,7 +574,7 @@ int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -585,7 +585,7 @@ int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } @@ -638,7 +638,7 @@ int snd_soc_component_compr_copy(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -649,7 +649,7 @@ int snd_soc_component_compr_copy(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 6e74a6c48986..661e9d70994f 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -62,7 +62,7 @@ static int soc_compr_clean(struct snd_compr_stream *cstream, int rollback) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

if (!rollback) snd_soc_runtime_deactivate(rtd, stream); @@ -84,7 +84,7 @@ static int soc_compr_clean(struct snd_compr_stream *cstream, int rollback) if (!rollback) snd_soc_dapm_stream_stop(rtd, stream);

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

snd_soc_pcm_component_pm_runtime_put(rtd, cstream, rollback);

@@ -107,7 +107,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream) if (ret < 0) goto err_no_lock;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_startup(cpu_dai, cstream); if (ret < 0) @@ -123,7 +123,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)

snd_soc_runtime_activate(rtd, stream); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); err_no_lock: if (ret < 0) soc_compr_clean(cstream, 1); @@ -146,7 +146,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (ret < 0) goto be_err;

- mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe);

/* calculate valid and active FE <-> BE dpcms */ dpcm_process_paths(fe, stream, &list, 1); @@ -182,7 +182,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;

snd_soc_runtime_activate(fe, stream); - mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe);

mutex_unlock(&fe->card->mutex);

@@ -209,7 +209,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);

- mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe); snd_soc_runtime_deactivate(fe, stream);

fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; @@ -229,7 +229,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

dpcm_be_disconnect(fe, stream);

- mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe);

snd_soc_link_compr_shutdown(cstream, 0);

@@ -249,7 +249,7 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_component_compr_trigger(cstream, cmd); if (ret < 0) @@ -269,7 +269,7 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) }

out: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -327,7 +327,7 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

/* * First we call set_params for the CPU DAI, then the component @@ -352,14 +352,14 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,

/* cancel any delayed stream shutdown that is pending */ rtd->pop_wait = 0; - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

cancel_delayed_work_sync(&rtd->delayed_work);

return 0;

err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -404,9 +404,9 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, ret = snd_soc_link_compr_set_params(cstream); if (ret < 0) goto out; - mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe); dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); - mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe); fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;

out: @@ -422,7 +422,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); int ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_get_params(cpu_dai, cstream, params); if (ret < 0) @@ -430,7 +430,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,

ret = snd_soc_component_compr_get_params(cstream, params); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -440,7 +440,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_ack(cpu_dai, cstream, bytes); if (ret < 0) @@ -448,7 +448,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)

ret = snd_soc_component_compr_ack(cstream, bytes); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -459,7 +459,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, int ret; struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_pointer(cpu_dai, cstream, tstamp); if (ret < 0) @@ -467,7 +467,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,

ret = snd_soc_component_compr_pointer(cstream, tstamp); out: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 9bbcff492c1e..4594505cdae2 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -348,7 +348,7 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int playback = SNDRV_PCM_STREAM_PLAYBACK;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", @@ -364,7 +364,7 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) SND_SOC_DAPM_STREAM_STOP); }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); } EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work);

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 1d0c3d57f66d..7247f44faa1c 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -49,19 +49,6 @@ static inline int _soc_pcm_ret(struct snd_soc_pcm_runtime *rtd, return ret; }

-static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd) -{ - mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); -} - -static inline void snd_soc_dpcm_mutex_unlock(struct snd_soc_pcm_runtime *rtd) -{ - mutex_unlock(&rtd->card->pcm_mutex); -} - -#define snd_soc_dpcm_mutex_assert_held(rtd) \ - lockdep_assert_held(&(rtd)->card->pcm_mutex) - static inline void snd_soc_dpcm_stream_lock_irq(struct snd_soc_pcm_runtime *rtd, int stream) { @@ -2664,7 +2651,7 @@ int snd_soc_dpcm_runtime_update(struct snd_soc_card *card) struct snd_soc_pcm_runtime *fe; int ret = 0;

- mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); + snd_soc_dpcm_mutex_lock(card); /* shutdown all old paths first */ for_each_card_rtds(card, fe) { ret = soc_dpcm_fe_runtime_update(fe, 0); @@ -2680,7 +2667,7 @@ int snd_soc_dpcm_runtime_update(struct snd_soc_card *card) }

out: - mutex_unlock(&card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(card); return ret; } EXPORT_SYMBOL_GPL(snd_soc_dpcm_runtime_update);

-- 2.25.1

Kuninori Morimoto

2:16 a.m.

New subject: [PATCH 3/3] ASoC: add snd_soc_card_mutex_lock/unlock()

ASoC need to use card->mutex with _INIT or _RUNTIME, but there is no helper function for it.

This patch adds its helper function and use it.

Because people might misunderstand that _init() is mutex initialization, this patch renames _INIT to _ROOT and adds new snd_soc_card_mutex_lock_root() for it.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc-card.h | 17 ++++++++++++++++- sound/soc/soc-compress.c | 18 +++++++++--------- sound/soc/soc-core.c | 4 ++-- 3 files changed, 27 insertions(+), 12 deletions(-)

diff --git a/include/sound/soc-card.h b/include/sound/soc-card.h index 9d31a5c0db33..fc94dfb0021f 100644 --- a/include/sound/soc-card.h +++ b/include/sound/soc-card.h @@ -9,10 +9,25 @@ #define __SOC_CARD_H

enum snd_soc_card_subclass { - SND_SOC_CARD_CLASS_INIT = 0, + SND_SOC_CARD_CLASS_ROOT = 0, SND_SOC_CARD_CLASS_RUNTIME = 1, };

+static inline void snd_soc_card_mutex_lock_root(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_ROOT); +} + +static inline void snd_soc_card_mutex_lock(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); +} + +static inline void snd_soc_card_mutex_unlock(struct snd_soc_card *card) +{ + mutex_unlock(&card->mutex); +} + struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, const char *name); int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type, diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 661e9d70994f..d8715db5e415 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -140,7 +140,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

ret = dpcm_path_get(fe, stream, &list); if (ret < 0) @@ -184,7 +184,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) snd_soc_runtime_activate(fe, stream); snd_soc_dpcm_mutex_unlock(fe);

- mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card);

return 0;

@@ -196,7 +196,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) dpcm_path_put(&list); be_err: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

@@ -207,7 +207,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream) struct snd_soc_dpcm *dpcm; int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

snd_soc_dpcm_mutex_lock(fe); snd_soc_runtime_deactivate(fe, stream); @@ -237,7 +237,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);

- mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return 0; }

@@ -284,7 +284,7 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) cmd == SND_COMPR_TRIGGER_DRAIN) return snd_soc_component_compr_trigger(cstream, cmd);

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

ret = snd_soc_dai_compr_trigger(cpu_dai, cstream, cmd); if (ret < 0) @@ -315,7 +315,7 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)

out: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

@@ -373,7 +373,7 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + snd_soc_card_mutex_lock(fe->card);

/* * Create an empty hw_params for the BE as the machine driver must @@ -411,7 +411,7 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,

out: fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; - mutex_unlock(&fe->card->mutex); + snd_soc_card_mutex_unlock(fe->card); return ret; }

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4594505cdae2..b48efc3a08d2 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1938,7 +1938,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) int ret;

mutex_lock(&client_mutex); - mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); + snd_soc_card_mutex_lock_root(card);

snd_soc_dapm_init(&card->dapm, card, NULL);

@@ -2093,7 +2093,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card) if (ret < 0) soc_cleanup_card_resources(card);

- mutex_unlock(&card->mutex); + snd_soc_card_mutex_unlock(card); mutex_unlock(&client_mutex);

return ret;

-- 2.25.1

Mark Brown

17 Apr 17 Apr

9:28 p.m.

On Thu, 06 Apr 2023 00:14:51 +0000, Kuninori Morimoto wrote:

...

ASoC is using many type of mutex lock, but some of them has helper function, but some doesn't. Or, it has helper function, but is static.

This patch-set adds helper function and use it.

Kuninori Morimoto (3): ASoC: expand snd_soc_dapm_mutex_lock/unlock() ASoC: expand snd_soc_dpcm_mutex_lock/unlock() ASoC: add snd_soc_card_mutex_lock/unlock()

[...]

Applied to

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/3] ASoC: expand snd_soc_dapm_mutex_lock/unlock() commit: 4a778bdc7afbc422bd513c4f1cd7a9faf4bebaab [2/3] ASoC: expand snd_soc_dpcm_mutex_lock/unlock() commit: 38e42f6d6c6702bbfc633fce9b579fb80cec2d59 [3/3] ASoC: add snd_soc_card_mutex_lock/unlock() commit: 0f3b818486796ec8895fa4ccdf15edb759bff40a

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

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