sugar/linux
1
0
Fork 0
Code Activity

ALSA: declare snd_kcontrol_new structures as const

Browse Source 
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:

@r disable optional_qualifier@
identifier x;
position p;
@@
static struct snd_kcontrol_new x@p={...};

@ok@
identifier r.x;
position p;
@@
snd_ctl_new1(&x@p,...)

@bad@
position p != {r.p,ok.p};
identifier r.x;
@@
x@p

@depends on !bad disable optional_qualifier@
identifier r.x;
@@
+const
struct snd_kcontrol_new x;

Cross compiled these files:
sound/aoa/codecs/tas.c - powerpc
sound/mips/{hal2.c/sgio2audio.c} - mips
sound/ppc/{awacs.c/beep.c/tumbler.c} - powerpc
sound/soc/sh/siu_dai.c - sh
Could not find an architecture to compile sound/sh/aica.c.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Bhumika Goyal
2017-05-27 20:16:15 +05:30
committed by Takashi Iwai
parent 2c4842d3b6
commit 905e46acd3
14 changed files with 51 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
sound/sh/aica.c
View File

@@ -535,7 +535,7 @@ static int aica_pcmvolume_put(struct snd_kcontrol *kcontrol,
return 1;
}
static struct snd_kcontrol_new snd_aica_pcmswitch_control = {
static const struct snd_kcontrol_new snd_aica_pcmswitch_control = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "PCM Playback Switch",
.index = 0,
@@ -544,7 +544,7 @@ static struct snd_kcontrol_new snd_aica_pcmswitch_control = {
.put = aica_pcmswitch_put
};
static struct snd_kcontrol_new snd_aica_pcmvolume_control = {
static const struct snd_kcontrol_new snd_aica_pcmvolume_control = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "PCM Playback Volume",
.index = 0,