Re: [alsa-devel] [PATCH v2] ASoC: core: Init pcm runtime work early to avoid warnings

On Tue, 03 Dec 2019 18:30:07 +0100, Curtis Malainey wrote:

There are cases where we fail before we reach soc_new_pcm which would init the workqueue. When we fail we attempt to flush the queue which generates warnings from the workqueue subsystem when we have not inited the queue. Solution is to use a proxy function to get around this issue.

Signed-off-by: Curtis Malainey cujomalainey@chromium.org Cc: Takashi Iwai tiwai@suse.de Signed-off-by: Curtis Malainey cujomalainey@chromium.org

Doubly sign-off.

Other than that, looks good to me: Reviewed-by: Takashi Iwai tiwai@suse.de

I'm going to submit the remaining fix for the uninitialized list later on top of this.

Thanks!

Takashi

---

include/sound/soc.h | 1 + sound/soc/soc-compress.c | 6 ++---- sound/soc/soc-core.c | 10 ++++++++++ sound/soc/soc-pcm.c | 11 ++++------- 4 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h index c28a1ed5e8df9..2628967998264 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1150,6 +1150,7 @@ struct snd_soc_pcm_runtime { unsigned int num_codecs;

struct delayed_work delayed_work;

• void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd);

#ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dpcm_root; #endif diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 61f230324164d..6615ef64c7f55 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -214,10 +214,8 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)

• This is to ensure there are no pops or clicks in between any music tracks
• due to DAPM power cycling.

*/ -static void close_delayed_work(struct work_struct *work) +static void close_delayed_work(struct snd_soc_pcm_runtime *rtd) {

• struct snd_soc_pcm_runtime *rtd =

• 	container_of(work, struct snd_soc_pcm_runtime, delayed_work.work);
  

  struct snd_soc_dai *codec_dai = rtd->codec_dai;

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

@@ -929,7 +927,7 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) }

/* DAPM dai link stream work */

• INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);

• rtd->close_delayed_work_func = close_delayed_work;

  rtd->compr = compr; compr->private_data = rtd;

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 062653ab03a37..0e2e628302f1d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -435,6 +435,15 @@ static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) device_unregister(rtd->dev); }

+static void close_delayed_work(struct work_struct *work) {

• struct snd_soc_pcm_runtime *rtd =

• 	container_of(work, struct snd_soc_pcm_runtime,
  

• 		     delayed_work.work);
  

• if (rtd->close_delayed_work_func)

• rtd->close_delayed_work_func(rtd);
  

+}

static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { @@ -470,6 +479,7 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(

rtd->dev = dev; dev_set_drvdata(dev, rtd);

• INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);

  /*

  • for rtd->codec_dais

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 01eb8700c3de5..b78f6ff2b1d3f 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -637,10 +637,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)

• This is to ensure there are no pops or clicks in between any music tracks
• due to DAPM power cycling.

*/ -static void close_delayed_work(struct work_struct *work) +static void close_delayed_work(struct snd_soc_pcm_runtime *rtd) {

• struct snd_soc_pcm_runtime *rtd =

• 	container_of(work, struct snd_soc_pcm_runtime, delayed_work.work);
  

  struct snd_soc_dai *codec_dai = rtd->codec_dais[0];

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

@@ -660,7 +658,7 @@ static void close_delayed_work(struct work_struct *work) mutex_unlock(&rtd->card->pcm_mutex); }

-static void codec2codec_close_delayed_work(struct work_struct *work) +static void codec2codec_close_delayed_work(struct snd_soc_pcm_runtime *rtd) { /* * Currently nothing to do for c2c links @@ -2974,10 +2972,9 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)

/* DAPM dai link stream work */ if (rtd->dai_link->params)

• INIT_DELAYED_WORK(&rtd->delayed_work,
  

• 		  codec2codec_close_delayed_work);
  

• rtd->close_delayed_work_func = codec2codec_close_delayed_work;
  

  else

• INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
  

• rtd->close_delayed_work_func = close_delayed_work;
  
  

  pcm->nonatomic = rtd->dai_link->nonatomic; rtd->pcm = pcm;

-- 2.24.0.393.g34dc348eaf-goog