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ASoC: Name iov_iter argument as iterator instead of buffer

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While transitioning ASoC code for iov_iter usages, I kept the argument
name as "buf" as the original code.  But, iov_iter is an iterator, and
using the name "buf" may be misleading: the crucial difference is that
iov_iter can be proceeded after the operation, hence it can't be
passed twice, while a simple "buffer" sounds as if reusable.

To make the usage clearer, rename the argument from "buf" to "iter".
There is no functional changes, just names.

Fixes: 66201cacc3 ("ASoC: component: Add generic PCM copy ops")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/CAHk-=wje+VkXjjfVTmK-uJdG_M5=ar14QxAwK+XDiq07k_pzBg@mail.gmail.com
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230831130457.8180-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2023-08-31 15:04:57 +02:00
parent 69d0fd348d
commit ef98a48832
3 changed files with 7 additions and 7 deletions
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4
include/sound/soc-component.h
View File

@ -139,7 +139,7 @@ struct snd_soc_component_driver {
struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
int (*copy)(struct snd_soc_component *component,
struct snd_pcm_substream *substream, int channel,
unsigned long pos, struct iov_iter *buf,
unsigned long pos, struct iov_iter *iter,
unsigned long bytes);
struct page *(*page)(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
@ -511,7 +511,7 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream);
int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
struct iov_iter *buf, unsigned long bytes);
struct iov_iter *iter, unsigned long bytes);
struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
unsigned long offset);
int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,

4
sound/soc/soc-component.c
View File

@ -1054,7 +1054,7 @@ int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
struct iov_iter *buf, unsigned long bytes)
struct iov_iter *iter, unsigned long bytes)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_component *component;
@ -1065,7 +1065,7 @@ int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
if (component->driver->copy)
return soc_component_ret(component,
component->driver->copy(component, substream,
channel, pos, buf, bytes));
channel, pos, iter, bytes));
return -EINVAL;
}

6
sound/soc/soc-generic-dmaengine-pcm.c
View File

@ -290,7 +290,7 @@ static snd_pcm_uframes_t dmaengine_pcm_pointer(
static int dmaengine_copy(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
struct iov_iter *buf, unsigned long bytes)
struct iov_iter *iter, unsigned long bytes)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct dmaengine_pcm *pcm = soc_component_to_pcm(component);
@ -302,7 +302,7 @@ static int dmaengine_copy(struct snd_soc_component *component,
channel * (runtime->dma_bytes / runtime->channels);
if (is_playback)
if (copy_from_iter(dma_ptr, bytes, buf) != bytes)
if (copy_from_iter(dma_ptr, bytes, iter) != bytes)
return -EFAULT;
if (process) {
@ -312,7 +312,7 @@ static int dmaengine_copy(struct snd_soc_component *component,
}
if (!is_playback)
if (copy_to_iter(dma_ptr, bytes, buf) != bytes)
if (copy_to_iter(dma_ptr, bytes, iter) != bytes)
return -EFAULT;
return 0;