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ASoC: (cosmetic) simplify dpcm_prune_paths()

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Currently dpcm_prune_paths() has up to 4 nested condition and loop
levels, which forces the code to use flags for flow control.
Extracting widget status verification code from dpcm_prune_paths()
into a separate function simplifies the code.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200312095214.15126-2-guennadi.liakhovetski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Guennadi Liakhovetski 2020-03-12 10:52:13 +01:00 committed by Mark Brown
parent 4d90a4e677
commit 8cce6569e4
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GPG Key ID: 24D68B725D5487D0
1 changed files with 33 additions and 32 deletions
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65
sound/soc/soc-pcm.c
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@ -1626,45 +1626,46 @@ void dpcm_path_put(struct snd_soc_dapm_widget_list **list)
snd_soc_dapm_dai_free_widgets(list);
}
static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
struct snd_soc_dapm_widget_list **list_)
static bool dpcm_be_is_active(struct snd_soc_dpcm *dpcm, int stream,
struct snd_soc_dapm_widget_list *list)
{
struct snd_soc_dpcm *dpcm;
struct snd_soc_dapm_widget_list *list = *list_;
struct snd_soc_dapm_widget *widget;
struct snd_soc_dai *dai;
unsigned int i;
/* is there a valid CPU DAI widget for this BE */
for_each_rtd_cpu_dais(dpcm->be, i, dai) {
widget = snd_soc_dai_get_widget(dai, stream);
/*
* The BE is pruned only if none of the cpu_dai
* widgets are in the active list.
*/
if (widget && widget_in_list(list, widget))
return true;
}
/* is there a valid CODEC DAI widget for this BE */
for_each_rtd_codec_dais(dpcm->be, i, dai) {
widget = snd_soc_dai_get_widget(dai, stream);
/* prune the BE if it's no longer in our active list */
if (widget && widget_in_list(list, widget))
return true;
}
return false;
}
static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
struct snd_soc_dapm_widget_list **list_)
{
struct snd_soc_dpcm *dpcm;
int prune = 0;
int do_prune;
/* Destroy any old FE <--> BE connections */
for_each_dpcm_be(fe, stream, dpcm) {
unsigned int i;
/* is there a valid CPU DAI widget for this BE */
do_prune = 1;
for_each_rtd_cpu_dais(dpcm->be, i, dai) {
widget = snd_soc_dai_get_widget(dai, stream);
/*
* The BE is pruned only if none of the cpu_dai
* widgets are in the active list.
*/
if (widget && widget_in_list(list, widget))
do_prune = 0;
}
if (!do_prune)
continue;
/* is there a valid CODEC DAI widget for this BE */
do_prune = 1;
for_each_rtd_codec_dais(dpcm->be, i, dai) {
widget = snd_soc_dai_get_widget(dai, stream);
/* prune the BE if it's no longer in our active list */
if (widget && widget_in_list(list, widget))
do_prune = 0;
}
if (!do_prune)
if (dpcm_be_is_active(dpcm, stream, *list_))
continue;
dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n",