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: 66201cacc33d ("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_pzB... Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/soc-component.h | 4 ++-- sound/soc/soc-component.c | 4 ++-- sound/soc/soc-generic-dmaengine-pcm.c | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 17bea3144551..ceca69b46a82 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -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, diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index f18406dfa1e4..ba7c0ae82e00 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -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; } diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 7a07fbf98e2e..d0653d775c87 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -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;