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ALSA: pcm: Define snd_pcm_mmap_data_{open|close}() locally

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snd_pcm_mmap_data_open() and _close() are defined as inline functions
in the public sound/pcm.h, but those are used only locally in
pcm_native.c, hence they should be better placed there.

Also, those are referred as callbacks, the useless inline is dropped.

Link: https://patch.msgid.link/20241113111628.17069-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2024-11-13 12:16:27 +01:00
parent 8f80f378e7
commit f69c2861b0
2 changed files with 20 additions and 24 deletions
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24
include/sound/pcm.h
View File

@ -1393,30 +1393,6 @@ snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,
return snd_sgbuf_get_chunk_size(snd_pcm_get_dma_buf(substream), ofs, size);
}
/**
* snd_pcm_mmap_data_open - increase the mmap counter
* @area: VMA
*
* PCM mmap callback should handle this counter properly
*/
static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
atomic_inc(&substream->mmap_count);
}
/**
* snd_pcm_mmap_data_close - decrease the mmap counter
* @area: VMA
*
* PCM mmap callback should handle this counter properly
*/
static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
atomic_dec(&substream->mmap_count);
}
int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *area);
/* mmap for io-memory area */

20
sound/core/pcm_native.c
View File

@ -3773,6 +3773,26 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file
}
#endif /* coherent mmap */
/*
* snd_pcm_mmap_data_open - increase the mmap counter
*/
static void snd_pcm_mmap_data_open(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = area->vm_private_data;
atomic_inc(&substream->mmap_count);
}
/*
* snd_pcm_mmap_data_close - decrease the mmap counter
*/
static void snd_pcm_mmap_data_close(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = area->vm_private_data;
atomic_dec(&substream->mmap_count);
}
/*
* fault callback for mmapping a RAM page
*/