The patch
ASoC: compress: Clarify the intent of current compressed ops handling
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
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
From 52cadf1fdbe87a3a3eee11d9cc4873796903c934 Mon Sep 17 00:00:00 2001
From: Charles Keepax ckeepax@opensource.cirrus.com Date: Tue, 5 Feb 2019 11:18:12 +0000 Subject: [PATCH] ASoC: compress: Clarify the intent of current compressed ops handling
For callbacks configuring the state of the components (trigger, set_params, ack and set_metadata) simplify the code a little and make intention clearer by aborting as soon as an error is encountered. The operation has already failed and there is nothing to be gained from processing the callbacks on additional components. The operations currently abort after the callbacks, so this simply shortens the error path.
For callbacks returning information from the driver (copy, get_metadata, pointer, get_codec_caps, get_caps and get_params) only look for the first callback provided, currently the code will call every callback only returning the information provided by the last. Since we can only return one set of data, it makes no sense to request the data from every component. Again this just makes the currently supported feature set a little more clear.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/soc-compress.c | 106 ++++++++++++++++++--------------------- 1 file changed, 48 insertions(+), 58 deletions(-)
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 699397a09167..fc8742383b23 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -353,7 +353,7 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -364,12 +364,10 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) !component->driver->compr_ops->trigger) continue;
- __ret = component->driver->compr_ops->trigger(cstream, cmd); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->trigger(cstream, cmd); + if (ret < 0) + goto out; } - if (ret < 0) - goto out;
if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai); @@ -394,7 +392,7 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; - int ret = 0, __ret, stream; + int ret, stream;
if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || cmd == SND_COMPR_TRIGGER_DRAIN) { @@ -406,9 +404,10 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) !component->driver->compr_ops->trigger) continue;
- __ret = component->driver->compr_ops->trigger(cstream, cmd); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->trigger(cstream, + cmd); + if (ret < 0) + return ret; } return ret; } @@ -433,12 +432,10 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) !component->driver->compr_ops->trigger) continue;
- __ret = component->driver->compr_ops->trigger(cstream, cmd); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->trigger(cstream, cmd); + if (ret < 0) + goto out; } - if (ret < 0) - goto out;
fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
@@ -472,7 +469,7 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -496,12 +493,10 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, !component->driver->compr_ops->set_params) continue;
- __ret = component->driver->compr_ops->set_params(cstream, params); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->set_params(cstream, params); + if (ret < 0) + goto err; } - if (ret < 0) - goto err;
if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { ret = rtd->dai_link->compr_ops->set_params(cstream); @@ -522,7 +517,7 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
cancel_delayed_work_sync(&rtd->delayed_work);
- return ret; + return 0;
err: mutex_unlock(&rtd->pcm_mutex); @@ -538,7 +533,7 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; - int ret = 0, __ret, stream; + int ret, stream;
if (cstream->direction == SND_COMPRESS_PLAYBACK) stream = SNDRV_PCM_STREAM_PLAYBACK; @@ -578,12 +573,10 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, !component->driver->compr_ops->set_params) continue;
- __ret = component->driver->compr_ops->set_params(cstream, params); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->set_params(cstream, params); + if (ret < 0) + goto out; } - if (ret < 0) - goto out;
if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { ret = fe->dai_link->compr_ops->set_params(cstream); @@ -607,7 +600,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -624,9 +617,8 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, !component->driver->compr_ops->get_params) continue;
- __ret = component->driver->compr_ops->get_params(cstream, params); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->get_params(cstream, params); + break; }
err: @@ -640,7 +632,7 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream, struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; - int ret = 0, __ret; + int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -651,9 +643,8 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream, !component->driver->compr_ops->get_caps) continue;
- __ret = component->driver->compr_ops->get_caps(cstream, caps); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->get_caps(cstream, caps); + break; }
mutex_unlock(&rtd->pcm_mutex); @@ -666,7 +657,7 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; - int ret = 0, __ret; + int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -677,9 +668,9 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, !component->driver->compr_ops->get_codec_caps) continue;
- __ret = component->driver->compr_ops->get_codec_caps(cstream, codec); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->get_codec_caps(cstream, + codec); + break; }
mutex_unlock(&rtd->pcm_mutex); @@ -692,7 +683,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret = 0;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -709,9 +700,9 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) !component->driver->compr_ops->ack) continue;
- __ret = component->driver->compr_ops->ack(cstream, bytes); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->ack(cstream, bytes); + if (ret < 0) + goto err; }
err: @@ -725,7 +716,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; - int ret = 0, __ret; + int ret = 0; struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); @@ -740,9 +731,8 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, !component->driver->compr_ops->pointer) continue;
- __ret = component->driver->compr_ops->pointer(cstream, tstamp); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->pointer(cstream, tstamp); + break; }
mutex_unlock(&rtd->pcm_mutex); @@ -781,7 +771,7 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret;
if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_metadata) { ret = cpu_dai->driver->cops->set_metadata(cstream, metadata, cpu_dai); @@ -796,12 +786,13 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream, !component->driver->compr_ops->set_metadata) continue;
- __ret = component->driver->compr_ops->set_metadata(cstream, metadata); - if (__ret < 0) - ret = __ret; + ret = component->driver->compr_ops->set_metadata(cstream, + metadata); + if (ret < 0) + return ret; }
- return ret; + return 0; }
static int soc_compr_get_metadata(struct snd_compr_stream *cstream, @@ -811,7 +802,7 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0, __ret; + int ret;
if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_metadata) { ret = cpu_dai->driver->cops->get_metadata(cstream, metadata, cpu_dai); @@ -826,12 +817,11 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream, !component->driver->compr_ops->get_metadata) continue;
- __ret = component->driver->compr_ops->get_metadata(cstream, metadata); - if (__ret < 0) - ret = __ret; + return component->driver->compr_ops->get_metadata(cstream, + metadata); }
- return ret; + return 0; }
/* ASoC Compress operations */