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ALSA: declare snd_kcontrol_new structures as const

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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/ppc/awacs.c
View File

@@ -514,7 +514,7 @@ static struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] = {
},
};
static struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw = {
static const struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Playback Switch",
.info = snd_pmac_boolean_stereo_info,
@@ -523,7 +523,7 @@ static struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw = {
.private_value = AMP_CH_HD,
};
static struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw = {
static const struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Speaker Playback Switch",
.info = snd_pmac_boolean_stereo_info,

2
sound/ppc/beep.c
View File

@@ -206,7 +206,7 @@ static int snd_pmac_put_beep(struct snd_kcontrol *kcontrol,
return oval != chip->beep->volume;
}
static struct snd_kcontrol_new snd_pmac_beep_mixer = {
static const struct snd_kcontrol_new snd_pmac_beep_mixer = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Beep Playback Volume",
.info = snd_pmac_info_beep,

8
sound/ppc/tumbler.c
View File

@@ -897,7 +897,7 @@ static struct snd_kcontrol_new snapper_mixers[] = {
},
};
static struct snd_kcontrol_new tumbler_hp_sw = {
static const struct snd_kcontrol_new tumbler_hp_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Playback Switch",
.info = snd_pmac_boolean_mono_info,
@@ -905,7 +905,7 @@ static struct snd_kcontrol_new tumbler_hp_sw = {
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_HP,
};
static struct snd_kcontrol_new tumbler_speaker_sw = {
static const struct snd_kcontrol_new tumbler_speaker_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Speaker Playback Switch",
.info = snd_pmac_boolean_mono_info,
@@ -913,7 +913,7 @@ static struct snd_kcontrol_new tumbler_speaker_sw = {
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_AMP,
};
static struct snd_kcontrol_new tumbler_lineout_sw = {
static const struct snd_kcontrol_new tumbler_lineout_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line Out Playback Switch",
.info = snd_pmac_boolean_mono_info,
@@ -921,7 +921,7 @@ static struct snd_kcontrol_new tumbler_lineout_sw = {
.put = tumbler_put_mute_switch,
.private_value = TUMBLER_MUTE_LINE,
};
static struct snd_kcontrol_new tumbler_drc_sw = {
static const struct snd_kcontrol_new tumbler_drc_sw = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "DRC Switch",
.info = snd_pmac_boolean_mono_info,