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.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/hda/hda_codec.c | 8 ++++----
sound/pci/hda/patch_sigmatel.c | 6 +++---
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 8f166bbc438b..d039eeec080f 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2387,7 +2387,7 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
return change;
}
-static struct snd_kcontrol_new dig_mixes[] = {
+static const struct snd_kcontrol_new dig_mixes[] = {
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -2437,7 +2437,7 @@ int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
{
int err;
struct snd_kcontrol *kctl;
- struct snd_kcontrol_new *dig_mix;
+ const struct snd_kcontrol_new *dig_mix;
int idx = 0;
int val = 0;
const int spdif_index = 16;
@@ -2655,7 +2655,7 @@ static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
return 0;
}
-static struct snd_kcontrol_new dig_in_ctls[] = {
+static const struct snd_kcontrol_new dig_in_ctls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
@@ -2687,7 +2687,7 @@ int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
{
int err;
struct snd_kcontrol *kctl;
- struct snd_kcontrol_new *dig_mix;
+ const struct snd_kcontrol_new *dig_mix;
int idx;
idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 8ecb53bce509..9b816b377547 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -825,11 +825,11 @@ static int stac_auto_create_beep_ctls(struct hda_codec *codec,
struct sigmatel_spec *spec = codec->spec;
u32 caps = query_amp_caps(codec, nid, HDA_OUTPUT);
struct snd_kcontrol_new *knew;
- static struct snd_kcontrol_new abeep_mute_ctl =
+ static const struct snd_kcontrol_new abeep_mute_ctl =
HDA_CODEC_MUTE(NULL, 0, 0, 0);
- static struct snd_kcontrol_new dbeep_mute_ctl =
+ static const struct snd_kcontrol_new dbeep_mute_ctl =
HDA_CODEC_MUTE_BEEP(NULL, 0, 0, 0);
- static struct snd_kcontrol_new beep_vol_ctl =
+ static const struct snd_kcontrol_new beep_vol_ctl =
HDA_CODEC_VOLUME(NULL, 0, 0, 0);
/* check for mute support for the the amp */
--
2.16.4
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