Commit 1da7f0c5 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: dummy: Constify snd_pcm_ops definitions 

The snd_pcm_ops items defined in snd-dummy driver can be gracefully
declared as const.  Let's mark them for further optimization.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-44-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 46708e62

sound/drivers/dummy.c

+3 −3
Original line number Diff line number Diff line
@@ -644,7 +644,7 @@ static struct page *dummy_pcm_page(struct snd_pcm_substream *substream, 
	return virt_to_page(dummy_page[substream->stream]); /* the same page */

}



static struct snd_pcm_ops dummy_pcm_ops = {

static const struct snd_pcm_ops dummy_pcm_ops = {

	.open =		dummy_pcm_open,

	.close =	dummy_pcm_close,

	.hw_params =	dummy_pcm_hw_params,
@@ -653,7 +653,7 @@ static struct snd_pcm_ops dummy_pcm_ops = { 
	.pointer =	dummy_pcm_pointer,

};



static struct snd_pcm_ops dummy_pcm_ops_no_buf = {

static const struct snd_pcm_ops dummy_pcm_ops_no_buf = {

	.open =		dummy_pcm_open,

	.close =	dummy_pcm_close,

	.hw_params =	dummy_pcm_hw_params,
@@ -670,7 +670,7 @@ static int snd_card_dummy_pcm(struct snd_dummy *dummy, int device, 
			      int substreams)

{

	struct snd_pcm *pcm;

	struct snd_pcm_ops *ops;

	const struct snd_pcm_ops *ops;

	int err;



	err = snd_pcm_new(dummy->card, "Dummy PCM", device,

CRA Git | Maintained and supported by SUSTech CRA and CCSE