diff options
| author |   Takashi Iwai <tiwai@suse.de> | 2020-01-03 09:16:57 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-01-03 09:24:34 +0100 |
| commit | 195727e8b6a896d898b048e44fdf7ea52d36bd7e (patch) | |
| tree | 460195870919ceddca2ca25e6c8c1752100bd6a1 /sound/usb/mixer.h | |
| parent | ALSA: spi: Constify snd_kcontrol_new items (diff) | |
| download | linux-195727e8b6a896d898b048e44fdf7ea52d36bd7e.tar.xz linux-195727e8b6a896d898b048e44fdf7ea52d36bd7e.zip | |
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/mixer.h')
| -rw-r--r-- | sound/usb/mixer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 37e1b234c802..65d6d08c96f5 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -116,6 +116,6 @@ int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); -extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl; +extern const struct snd_kcontrol_new *snd_usb_feature_unit_ctl; #endif /* __USBMIXER_H */ |