Hi,

On Nov 30 2015 00:36, Julia Lawall wrote:

The action_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall Julia.Lawall@lip6.fr

I think this approach is better to describe a part of design about actions for PCM substreams. It may help readers.

Reviewed-by: Takashi Sakamoto o-takashi@sakamocchi.jp Tested-by: Takashi Sakamoto o-takashi@sakamocchi.jp

---

sound/core/pcm_native.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index a8b27cd..fadd3eb 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -875,7 +875,7 @@ struct action_ops {

• Note: the stream state might be changed also on failure
• Note2: call with calling stream lock + link lock

*/ -static int snd_pcm_action_group(struct action_ops *ops, +static int snd_pcm_action_group(const struct action_ops *ops, struct snd_pcm_substream *substream, int state, int do_lock) { @@ -932,7 +932,7 @@ static int snd_pcm_action_group(struct action_ops *ops, /*

• Note: call with stream lock

*/ -static int snd_pcm_action_single(struct action_ops *ops, +static int snd_pcm_action_single(const struct action_ops *ops, struct snd_pcm_substream *substream, int state) { @@ -952,7 +952,7 @@ static int snd_pcm_action_single(struct action_ops *ops, /*

• Note: call with stream lock

*/ -static int snd_pcm_action(struct action_ops *ops, +static int snd_pcm_action(const struct action_ops *ops, struct snd_pcm_substream *substream, int state) { @@ -984,7 +984,7 @@ static int snd_pcm_action(struct action_ops *ops, /*

• Note: don't use any locks before

*/ -static int snd_pcm_action_lock_irq(struct action_ops *ops, +static int snd_pcm_action_lock_irq(const struct action_ops *ops, struct snd_pcm_substream *substream, int state) { @@ -998,7 +998,7 @@ static int snd_pcm_action_lock_irq(struct action_ops *ops,

/* */ -static int snd_pcm_action_nonatomic(struct action_ops *ops, +static int snd_pcm_action_nonatomic(const struct action_ops *ops, struct snd_pcm_substream *substream, int state) { @@ -1056,7 +1056,7 @@ static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state) snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MSTART); }

-static struct action_ops snd_pcm_action_start = { +static const struct action_ops snd_pcm_action_start = { .pre_action = snd_pcm_pre_start, .do_action = snd_pcm_do_start, .undo_action = snd_pcm_undo_start, @@ -1107,7 +1107,7 @@ static void snd_pcm_post_stop(struct snd_pcm_substream *substream, int state) wake_up(&runtime->tsleep); }

-static struct action_ops snd_pcm_action_stop = { +static const struct action_ops snd_pcm_action_stop = { .pre_action = snd_pcm_pre_stop, .do_action = snd_pcm_do_stop, .post_action = snd_pcm_post_stop @@ -1224,7 +1224,7 @@ static void snd_pcm_post_pause(struct snd_pcm_substream *substream, int push) } }

-static struct action_ops snd_pcm_action_pause = { +static const struct action_ops snd_pcm_action_pause = { .pre_action = snd_pcm_pre_pause, .do_action = snd_pcm_do_pause, .undo_action = snd_pcm_undo_pause, @@ -1273,7 +1273,7 @@ static void snd_pcm_post_suspend(struct snd_pcm_substream *substream, int state) wake_up(&runtime->tsleep); }

-static struct action_ops snd_pcm_action_suspend = { +static const struct action_ops snd_pcm_action_suspend = { .pre_action = snd_pcm_pre_suspend, .do_action = snd_pcm_do_suspend, .post_action = snd_pcm_post_suspend @@ -1375,7 +1375,7 @@ static void snd_pcm_post_resume(struct snd_pcm_substream *substream, int state) snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MRESUME); }

-static struct action_ops snd_pcm_action_resume = { +static const struct action_ops snd_pcm_action_resume = { .pre_action = snd_pcm_pre_resume, .do_action = snd_pcm_do_resume, .undo_action = snd_pcm_undo_resume, @@ -1478,7 +1478,7 @@ static void snd_pcm_post_reset(struct snd_pcm_substream *substream, int state) snd_pcm_playback_silence(substream, ULONG_MAX); }

-static struct action_ops snd_pcm_action_reset = { +static const struct action_ops snd_pcm_action_reset = { .pre_action = snd_pcm_pre_reset, .do_action = snd_pcm_do_reset, .post_action = snd_pcm_post_reset @@ -1522,7 +1522,7 @@ static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state) snd_pcm_set_state(substream, SNDRV_PCM_STATE_PREPARED); }

-static struct action_ops snd_pcm_action_prepare = { +static const struct action_ops snd_pcm_action_prepare = { .pre_action = snd_pcm_pre_prepare, .do_action = snd_pcm_do_prepare, .post_action = snd_pcm_post_prepare @@ -1618,7 +1618,7 @@ static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream, int sta { }

-static struct action_ops snd_pcm_action_drain_init = { +static const struct action_ops snd_pcm_action_drain_init = { .pre_action = snd_pcm_pre_drain_init, .do_action = snd_pcm_do_drain_init, .post_action = snd_pcm_post_drain_init