ALSA: ppc: 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/20200103081714.9560-39-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 25 insertions, 25 deletions

diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
index 359d22a81ae3..73c0fd7277e6 100644
--- a/sound/ppc/awacs.c
+++ b/sound/ppc/awacs.c
@@ -464,7 +464,7 @@ static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol,
 #define AMP_CH_SPK	0
 #define AMP_CH_HD	1
 
-static struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] = {
 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	  .name = "Speaker Playback Volume",
 	  .info = snd_pmac_awacs_info_volume_amp,
@@ -582,46 +582,46 @@ static int snd_pmac_screamer_mic_boost_put(struct snd_kcontrol *kcontrol,
 /*
  * lists of mixer elements
  */
-static struct snd_kcontrol_new snd_pmac_awacs_mixers[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers[] = {
 	AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0),
 	AWACS_VOLUME("Master Capture Volume", 0, 4, 0),
 /*	AWACS_SWITCH("Unknown Playback Switch", 6, SHIFT_PAROUT0, 0), */
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] = {
 	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
 	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_LINE, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] = {
 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] = {
 	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] = {
 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
 	AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] = {
 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] = {
 	AWACS_VOLUME("Headphone Playback Volume", 2, 6, 1),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] = {
 	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 };
@@ -629,34 +629,34 @@ static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] = {
 /* FIXME: is this correct order?
  * screamer (powerbook G3 pismo) seems to have different bits...
  */
-static struct snd_kcontrol_new snd_pmac_awacs_mixers2[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers2[] = {
 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0),
 	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mixers2[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mixers2[] = {
 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
 	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] = {
 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_master_sw =
+static const struct snd_kcontrol_new snd_pmac_awacs_master_sw =
 AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac =
+static const struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac =
 AWACS_SWITCH("Line out Playback Switch", 1, SHIFT_HDMUTE, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 =
+static const struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 =
 AWACS_SWITCH("Headphone Playback Switch", 1, SHIFT_HDMUTE, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] = {
 	AWACS_SWITCH("Mic Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] = {
+static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] = {
 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	  .name = "Mic Boost Capture Volume",
 	  .info = snd_pmac_screamer_mic_boost_info,
@@ -665,34 +665,34 @@ static struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] = {
 	},
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] =
+static const struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] =
 {
 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] =
+static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] =
 {
 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
 	AWACS_SWITCH("CD Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] =
+static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] =
 {
 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
 	AWACS_SWITCH("Mic Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] = {
+static const struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] = {
 	AWACS_VOLUME("Speaker Playback Volume", 4, 6, 1),
 };
 
-static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw =
+static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw =
 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 =
+static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 =
 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 1);
 
-static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 =
+static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 =
 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
 
 
@@ -700,7 +700,7 @@ AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
  * add new mixer elements to the card
  */
 static int build_mixers(struct snd_pmac *chip, int nums,
-			struct snd_kcontrol_new *mixers)
+			const struct snd_kcontrol_new *mixers)
 {
 	int i, err;