diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-12-29 19:41:45 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-12-30 16:41:55 +0100 |
| commit | f6dbe1bee59741cd7699e7da3019e67c77d9bd6f (patch) | |
| tree | a7d657aa50fd33afb445134d944121c8391fa213 /sound/core/oss | |
| parent | ALSA: pcm: Use __ffs() instead of ffs() in snd_mask_min() (diff) | |
| download | linux-f6dbe1bee59741cd7699e7da3019e67c77d9bd6f.tar.xz linux-f6dbe1bee59741cd7699e7da3019e67c77d9bd6f.zip | |
ALSA: snd_pcm_oss_period_size: Use round{up,down}_pow_of_two()
Instead of opencoding them use the standard roundup_pow_of_two() and
rounddown_pow_of_two() helper functions. This gets rids one of the few users
of the custom ld2() function and also makes it a bit more obvious what the
code does.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/oss')
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index ada69d7a8d70..80423a4ccab6 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -719,7 +719,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, oss_buffer_size = snd_pcm_plug_client_size(substream, snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) * oss_frame_size; - oss_buffer_size = 1 << ld2(oss_buffer_size); + oss_buffer_size = rounddown_pow_of_two(oss_buffer_size); if (atomic_read(&substream->mmap_count)) { if (oss_buffer_size > runtime->oss.mmap_bytes) oss_buffer_size = runtime->oss.mmap_bytes; @@ -755,14 +755,14 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, min_period_size = snd_pcm_plug_client_size(substream, snd_pcm_hw_param_value_min(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); min_period_size *= oss_frame_size; - min_period_size = 1 << (ld2(min_period_size - 1) + 1); + min_period_size = roundup_pow_of_two(min_period_size); if (oss_period_size < min_period_size) oss_period_size = min_period_size; max_period_size = snd_pcm_plug_client_size(substream, snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); max_period_size *= oss_frame_size; - max_period_size = 1 << ld2(max_period_size); + max_period_size = rounddown_pow_of_two(max_period_size); if (oss_period_size > max_period_size) oss_period_size = max_period_size; |