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ALSA: i2c: Constify snd_kcontrol_new items

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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/20200103081714.9560-35-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-01-03 09:16:50 +01:00
parent 2eccd40803
commit 0da2c47a95
5 changed files with 6 additions and 6 deletions
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2
sound/i2c/cs8427.c
View File

@ -459,7 +459,7 @@ static int snd_cs8427_spdif_mask_get(struct snd_kcontrol *kcontrol,
return 0;
}
static struct snd_kcontrol_new snd_cs8427_iec958_controls[] = {
static const struct snd_kcontrol_new snd_cs8427_iec958_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.info = snd_cs8427_in_status_info,

2
sound/i2c/other/ak4113.c
View File

@ -349,7 +349,7 @@ static int snd_ak4113_spdif_qget(struct snd_kcontrol *kcontrol,
}
/* Don't forget to change AK4113_CONTROLS define!!! */
static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = {
static const struct snd_kcontrol_new snd_ak4113_iec958_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "IEC958 Parity Errors",

2
sound/i2c/other/ak4114.c
View File

@ -318,7 +318,7 @@ static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
}
/* Don't forget to change AK4114_CONTROLS define!!! */
static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
static const struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "IEC958 Parity Errors",

2
sound/i2c/other/ak4117.c
View File

@ -305,7 +305,7 @@ static int snd_ak4117_spdif_qget(struct snd_kcontrol *kcontrol,
}
/* Don't forget to change AK4117_CONTROLS define!!! */
static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = {
static const struct snd_kcontrol_new snd_ak4117_iec958_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "IEC958 Parity Errors",

4
sound/i2c/tea6330t.c
View File

@ -260,7 +260,7 @@ static int snd_tea6330t_put_treble(struct snd_kcontrol *kcontrol,
return change;
}
static struct snd_kcontrol_new snd_tea6330t_controls[] = {
static const struct snd_kcontrol_new snd_tea6330t_controls[] = {
TEA6330T_MASTER_SWITCH("Master Playback Switch", 0),
TEA6330T_MASTER_VOLUME("Master Playback Volume", 0),
TEA6330T_BASS("Tone Control - Bass", 0),
@ -278,7 +278,7 @@ int snd_tea6330t_update_mixer(struct snd_card *card,
{
struct snd_i2c_device *device;
struct tea6330t *tea;
struct snd_kcontrol_new *knew;
const struct snd_kcontrol_new *knew;
unsigned int idx;
int err = -ENOMEM;
u8 default_treble, default_bass;