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| author | Eldad Zack <eldad@fogrefinery.com> | 2013-04-23 01:00:41 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-04-29 13:36:15 +0200 |
| commit | 74c34ca1cc12884703c70d34ed333517d978c2e7 (patch) | |
| tree | 6d06b76a9fbe829f2427899aa708d682167420c0 /include/sound/pcm.h | |
| parent | 754813473c1a8b7711802313125f0fafc60141f8 (diff) | |
| download | lwn-74c34ca1cc12884703c70d34ed333517d978c2e7.tar.gz lwn-74c34ca1cc12884703c70d34ed333517d978c2e7.zip | |
ALSA: pcm_format_to_bits strong-typed conversion
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 <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
| -rw-r--r-- | include/sound/pcm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 1b0c6484e71a..5357ecbecc48 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -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 */ |