diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-01-03 09:16:51 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-01-03 09:24:25 +0100 |
| commit | fdd1f6fd328ff2e3723fe2a5c94378ef6f217edc (patch) | |
| tree | 22803e908c8d69ee74bc0cf2bb53376eff4f2254 /sound/isa/cs423x | |
| parent | 0da2c47a951c27f1be34cb9221d77b0ed2db6cee (diff) | |
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/cs423x')
| -rw-r--r-- | sound/isa/cs423x/cs4236_lib.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c index be48c60355d0..ca6646f9b58d 100644 --- a/sound/isa/cs423x/cs4236_lib.c +++ b/sound/isa/cs423x/cs4236_lib.c @@ -758,7 +758,7 @@ static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); static const DECLARE_TLV_DB_SCALE(db_scale_2bit, -1800, 600, 0); static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); -static struct snd_kcontrol_new snd_cs4236_controls[] = { +static const struct snd_kcontrol_new snd_cs4236_controls[] = { CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1), @@ -853,7 +853,7 @@ CS4236_DOUBLE1_TLV("Loopback Digital Playback Volume", 0, static const DECLARE_TLV_DB_SCALE(db_scale_5bit_6db_max, -5600, 200, 0); static const DECLARE_TLV_DB_SCALE(db_scale_2bit_16db_max, -2400, 800, 0); -static struct snd_kcontrol_new snd_cs4235_controls[] = { +static const struct snd_kcontrol_new snd_cs4235_controls[] = { WSS_DOUBLE("Master Playback Switch", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1), @@ -986,7 +986,7 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn return change; } -static struct snd_kcontrol_new snd_cs4236_iec958_controls[] = { +static const struct snd_kcontrol_new snd_cs4236_iec958_controls[] = { CS4236_IEC958_ENABLE("IEC958 Output Enable", 0), CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0), CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0), @@ -995,12 +995,12 @@ CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0), CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0) }; -static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4235[] = { +static const struct snd_kcontrol_new snd_cs4236_3d_controls_cs4235[] = { CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0), CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1) }; -static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4237[] = { +static const struct snd_kcontrol_new snd_cs4236_3d_controls_cs4237[] = { CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0), CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1), CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1), @@ -1008,7 +1008,7 @@ CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0), CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0) }; -static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4238[] = { +static const struct snd_kcontrol_new snd_cs4236_3d_controls_cs4238[] = { CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0), CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1), CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1), @@ -1020,7 +1020,7 @@ int snd_cs4236_mixer(struct snd_wss *chip) struct snd_card *card; unsigned int idx, count; int err; - struct snd_kcontrol_new *kcontrol; + const struct snd_kcontrol_new *kcontrol; if (snd_BUG_ON(!chip || !chip->card)) return -EINVAL; |