diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-05-24 15:18:10 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-05-24 15:41:44 +0200 |
| commit | e6c2e7eb27fc512af6875d7f2cf313e29c61be0b (patch) | |
| tree | 6e254e4b5b673569b2910fb2a6d7a16c86298308 /include/sound/pcm.h | |
| parent | 3cf981484a002fd02c410741d30b234227f89568 (diff) | |
| download | linux-e6c2e7eb27fc512af6875d7f2cf313e29c61be0b.tar.bz2 | |
ALSA: Constify the snd_pcm_substream struct ops field
The ops field of the snd_pcm_substream struct is never modified inside the ALSA
core. Making it const allows drivers to declare their snd_pcm_ops struct as
const.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
| -rw-r--r-- | include/sound/pcm.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index b48792fe386b..84b10f9a2832 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -384,7 +384,7 @@ struct snd_pcm_substream { unsigned int dma_buf_id; size_t dma_max; /* -- hardware operations -- */ - struct snd_pcm_ops *ops; + const struct snd_pcm_ops *ops; /* -- runtime information -- */ struct snd_pcm_runtime *runtime; /* -- timer section -- */ @@ -871,7 +871,8 @@ const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format); int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames); snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsigned, int big_endian); -void snd_pcm_set_ops(struct snd_pcm * pcm, int direction, struct snd_pcm_ops *ops); +void snd_pcm_set_ops(struct snd_pcm * pcm, int direction, + const struct snd_pcm_ops *ops); void snd_pcm_set_sync(struct snd_pcm_substream *substream); int snd_pcm_lib_interleave_len(struct snd_pcm_substream *substream); int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream, |