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authorTakashi Iwai <tiwai@suse.de>2020-01-03 09:16:57 +0100
committerTakashi Iwai <tiwai@suse.de>2020-01-03 09:24:34 +0100
commit195727e8b6a896d898b048e44fdf7ea52d36bd7e (patch)
tree460195870919ceddca2ca25e6c8c1752100bd6a1 /sound/usb/6fire
parent1aeb1c7f281ea7b372d5801fda119df73b1be98c (diff)
downloadlinux-195727e8b6a896d898b048e44fdf7ea52d36bd7e.tar.bz2
ALSA: usb: Constify snd_kcontrol_new items
Most of snd_kcontrol_new definitions are read-only and passed as-is. Let's declare them as const for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-42-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/6fire')
-rw-r--r--sound/usb/6fire/control.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c
index de1f030eaf72..20f34d2ace5f 100644
--- a/sound/usb/6fire/control.c
+++ b/sound/usb/6fire/control.c
@@ -397,7 +397,7 @@ static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
return 0;
}
-static struct snd_kcontrol_new vol_elements[] = {
+static const struct snd_kcontrol_new vol_elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Volume",
@@ -437,7 +437,7 @@ static struct snd_kcontrol_new vol_elements[] = {
{}
};
-static struct snd_kcontrol_new mute_elements[] = {
+static const struct snd_kcontrol_new mute_elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog Playback Switch",
@@ -471,7 +471,7 @@ static struct snd_kcontrol_new mute_elements[] = {
{}
};
-static struct snd_kcontrol_new elements[] = {
+static const struct snd_kcontrol_new elements[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line/Phono Capture Route",
@@ -517,7 +517,7 @@ static int usb6fire_control_add_virtual(
struct control_runtime *rt,
struct snd_card *card,
char *name,
- struct snd_kcontrol_new *elems)
+ const struct snd_kcontrol_new *elems)
{
int ret;
int i;