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ALSA: caiaq: Convert to the common vmalloc memalloc

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The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling.  This patch
coverts to the common code.
(*) 1fe7f397cf: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae39f: ALSA: pcm: Handle special page mapping in the
                  default mmap handler

Link: https://lore.kernel.org/r/20191105151856.10785-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-11-05 16:18:44 +01:00
parent 94ce90c562
commit c7b03852e7
1 changed files with 4 additions and 4 deletions
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8
sound/usb/caiaq/audio.c
View file

@ -170,15 +170,14 @@ static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_alloc_vmalloc_buffer(sub,
params_buffer_bytes(hw_params));
return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
}
static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
{
struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub);
deactivate_substream(cdev, sub);
return snd_pcm_lib_free_vmalloc_buffer(sub);
return snd_pcm_lib_free_pages(sub);
}
/* this should probably go upstream */
@ -334,7 +333,6 @@ static const struct snd_pcm_ops snd_usb_caiaq_ops = {
.prepare = snd_usb_caiaq_pcm_prepare,
.trigger = snd_usb_caiaq_pcm_trigger,
.pointer = snd_usb_caiaq_pcm_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
};
static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev,
@ -843,6 +841,8 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev)
&snd_usb_caiaq_ops);
snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_usb_caiaq_ops);
snd_pcm_lib_preallocate_pages_for_all(cdev->pcm, SNDRV_DMA_TYPE_VMALLOC,
NULL, 0, 0);
cdev->data_cb_info =
kmalloc_array(N_URBS, sizeof(struct snd_usb_caiaq_cb_info),