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authorTakashi Iwai <tiwai@suse.de>2020-01-03 09:16:51 +0100
committerTakashi Iwai <tiwai@suse.de>2020-01-03 09:24:25 +0100
commitfdd1f6fd328ff2e3723fe2a5c94378ef6f217edc (patch)
tree22803e908c8d69ee74bc0cf2bb53376eff4f2254 /sound/isa/opti9xx
parent0da2c47a951c27f1be34cb9221d77b0ed2db6cee (diff)
downloadlinux-fdd1f6fd328ff2e3723fe2a5c94378ef6f217edc.tar.bz2
ALSA: isa: 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/20200103081714.9560-36-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa/opti9xx')
-rw-r--r--sound/isa/opti9xx/miro.c14
-rw-r--r--sound/isa/opti9xx/opti92x-ad1848.c2
2 files changed, 8 insertions, 8 deletions
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index 0458934de1c7..a9c773b9f471 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -577,7 +577,7 @@ static int snd_miro_put_double(struct snd_kcontrol *kcontrol,
return change;
}
-static struct snd_kcontrol_new snd_miro_controls[] = {
+static const struct snd_kcontrol_new snd_miro_controls[] = {
MIRO_DOUBLE("Master Playback Volume", 0, ACI_GET_MASTER, ACI_SET_MASTER),
MIRO_DOUBLE("Mic Playback Volume", 1, ACI_GET_MIC, ACI_SET_MIC),
MIRO_DOUBLE("Line Playback Volume", 1, ACI_GET_LINE, ACI_SET_LINE),
@@ -589,7 +589,7 @@ MIRO_DOUBLE("Aux Playback Volume", 2, ACI_GET_LINE2, ACI_SET_LINE2),
/* Equalizer with seven bands (only PCM20)
from -12dB up to +12dB on each band */
-static struct snd_kcontrol_new snd_miro_eq_controls[] = {
+static const struct snd_kcontrol_new snd_miro_eq_controls[] = {
MIRO_DOUBLE("Tone Control - 28 Hz", 0, ACI_GET_EQ1, ACI_SET_EQ1),
MIRO_DOUBLE("Tone Control - 160 Hz", 0, ACI_GET_EQ2, ACI_SET_EQ2),
MIRO_DOUBLE("Tone Control - 400 Hz", 0, ACI_GET_EQ3, ACI_SET_EQ3),
@@ -599,15 +599,15 @@ MIRO_DOUBLE("Tone Control - 6.3 kHz", 0, ACI_GET_EQ6, ACI_SET_EQ6),
MIRO_DOUBLE("Tone Control - 16 kHz", 0, ACI_GET_EQ7, ACI_SET_EQ7),
};
-static struct snd_kcontrol_new snd_miro_radio_control[] = {
+static const struct snd_kcontrol_new snd_miro_radio_control[] = {
MIRO_DOUBLE("Radio Playback Volume", 0, ACI_GET_LINE1, ACI_SET_LINE1),
};
-static struct snd_kcontrol_new snd_miro_line_control[] = {
+static const struct snd_kcontrol_new snd_miro_line_control[] = {
MIRO_DOUBLE("Line Playback Volume", 2, ACI_GET_LINE1, ACI_SET_LINE1),
};
-static struct snd_kcontrol_new snd_miro_preamp_control[] = {
+static const struct snd_kcontrol_new snd_miro_preamp_control[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Mic Boost",
@@ -617,7 +617,7 @@ static struct snd_kcontrol_new snd_miro_preamp_control[] = {
.put = snd_miro_put_preamp,
}};
-static struct snd_kcontrol_new snd_miro_amp_control[] = {
+static const struct snd_kcontrol_new snd_miro_amp_control[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Line Boost",
@@ -627,7 +627,7 @@ static struct snd_kcontrol_new snd_miro_amp_control[] = {
.put = snd_miro_put_amp,
}};
-static struct snd_kcontrol_new snd_miro_capture_control[] = {
+static const struct snd_kcontrol_new snd_miro_capture_control[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "PCM Capture Switch",
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index b40ab806c349..697576459f71 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -550,7 +550,7 @@ static const DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_step, -9300, 300, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_4bit_12db_max, -3300, 300, 0);
-static struct snd_kcontrol_new snd_opti93x_controls[] = {
+static const struct snd_kcontrol_new snd_opti93x_controls[] = {
WSS_DOUBLE("Master Playback Switch", 0,
OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
WSS_DOUBLE_TLV("Master Playback Volume", 0,