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ALSA: pcm: Add snd_mask_set_format() helper for standard usages

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Many drivers calling snd_mask_set() need to do ugly cast with __force
for shutting up the sparse warnings.  Actually almost all of them are
about setting the format, so it's far better to provide a common
helper snd_mask_set_format() to pass SNDRV_PCM_FORMAT_* directly
without the cast.

There are a few other calls of snd_mask_set(), but they are in the PCM
core code, so we leave them for now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Takashi Iwai 2018-07-25 23:17:17 +02:00 committed by Mark Brown
parent fd56361177
commit 0b62834e73
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GPG key ID: 24D68B725D5487D0
1 changed files with 8 additions and 2 deletions
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10
include/sound/pcm_params.h
View file

@ -87,6 +87,13 @@ static inline void snd_mask_set(struct snd_mask *mask, unsigned int val)
mask->bits[MASK_OFS(val)] |= MASK_BIT(val);
}
/* Most of drivers need only this one */
static inline void snd_mask_set_format(struct snd_mask *mask,
snd_pcm_format_t format)
{
snd_mask_set(mask, (__force unsigned int)format);
}
static inline void snd_mask_reset(struct snd_mask *mask, unsigned int val)
{
mask->bits[MASK_OFS(val)] &= ~MASK_BIT(val);
@ -369,8 +376,7 @@ static inline int params_physical_width(const struct snd_pcm_hw_params *p)
static inline void
params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt)
{
snd_mask_set(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT),
(__force int)fmt);
snd_mask_set_format(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT), fmt);
}
#endif /* __SOUND_PCM_PARAMS_H */