[alsa-devel] [PATCH 02/58] ALSA: usb: Constify snd_pcm_hardware definitions

[Takashi Iwai]

Most of snd_pcm_hardware definitions are just copied to another object
as-is, hence we can define them as const for further optimization.

There should be no functional changes by this patch.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/usb/caiaq/audio.c         | 2 +-
 sound/usb/usx2y/usbusx2yaudio.c | 2 +-
 sound/usb/usx2y/usx2yhwdeppcm.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 72212153cb1f..41993a5c0537 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -30,7 +30,7 @@
 #define MAKE_CHECKBYTE(cdev,stream,i) \
 	(stream << 1) | (~(i / (cdev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
 
-static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = {
+static const struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = {
 	.info 		= (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 			   SNDRV_PCM_INFO_BLOCK_TRANSFER),
 	.formats 	= SNDRV_PCM_FMTBIT_S24_3BE,
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index 8ac4ce0e8965..c7dbc0f94efb 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -838,7 +838,7 @@ static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream)
 	return err;
 }
 
-static struct snd_pcm_hardware snd_usX2Y_2c =
+static const struct snd_pcm_hardware snd_usX2Y_2c =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index d8d91f2fb799..8253669c6a7d 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -528,7 +528,7 @@ static int snd_usX2Y_usbpcm_prepare(struct snd_pcm_substream *substream)
 	return err;
 }
 
-static struct snd_pcm_hardware snd_usX2Y_4c =
+static const struct snd_pcm_hardware snd_usX2Y_4c =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
2.16.4