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ALSA: pcm_format_to_bits strong-typed conversion

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Add a function to handle conversion from snd_pcm_format_t
to bitwise with proper typing.

Change such conversions to use this function and silence sparse
warnings.

Signed-off-by: Eldad Zack <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Eldad Zack 2013-04-23 01:00:41 +02:00 • committed by Takashi Iwai
commit 74c34ca1cc
8 changed files with 18 additions and 11 deletions
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6
include/sound/pcm.h
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@ -1133,4 +1133,10 @@ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
unsigned long private_value,
struct snd_pcm_chmap **info_ret);
/* Strong-typed conversion of pcm_format to bitwise */
static inline u64 pcm_format_to_bits(snd_pcm_format_t pcm_format)
{
return 1ULL << (__force int) pcm_format;
}
#endif /* __SOUND_PCM_H */