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| 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/opl3sa2.c | |
| parent | ALSA: i2c: Constify snd_kcontrol_new items (diff) | |
| download | linux-dev-fdd1f6fd328ff2e3723fe2a5c94378ef6f217edc.tar.xz linux-dev-fdd1f6fd328ff2e3723fe2a5c94378ef6f217edc.zip | |
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/opl3sa2.c')
| -rw-r--r-- | sound/isa/opl3sa2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c index 6d19ab458291..85a181acd388 100644 --- a/sound/isa/opl3sa2.c +++ b/sound/isa/opl3sa2.c @@ -457,7 +457,7 @@ static int snd_opl3sa2_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_ static const DECLARE_TLV_DB_SCALE(db_scale_master, -3000, 200, 0); static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); -static struct snd_kcontrol_new snd_opl3sa2_controls[] = { +static const struct snd_kcontrol_new snd_opl3sa2_controls[] = { OPL3SA2_DOUBLE("Master Playback Switch", 0, 0x07, 0x08, 7, 7, 1, 1), OPL3SA2_DOUBLE_TLV("Master Playback Volume", 0, 0x07, 0x08, 0, 0, 15, 1, db_scale_master), @@ -467,7 +467,7 @@ OPL3SA2_SINGLE_TLV("Mic Playback Volume", 0, 0x09, 0, 31, 1, OPL3SA2_SINGLE("ZV Port Switch", 0, 0x02, 0, 1, 0), }; -static struct snd_kcontrol_new snd_opl3sa2_tone_controls[] = { +static const struct snd_kcontrol_new snd_opl3sa2_tone_controls[] = { OPL3SA2_DOUBLE("3D Control - Wide", 0, 0x14, 0x14, 4, 0, 7, 0), OPL3SA2_DOUBLE("Tone Control - Bass", 0, 0x15, 0x15, 4, 0, 7, 0), OPL3SA2_DOUBLE("Tone Control - Treble", 0, 0x16, 0x16, 4, 0, 7, 0) |