ALSA: opl4: More constification

Apply const prefix to the static volume table.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-58-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/drivers/opl4/opl4_synth.c b/sound/drivers/opl4/opl4_synth.c
index 7bc1e58c95aa56bc4fac2efd45f87bfb7f69cca6..34e2bd52bba1b4e69c5e703efd09687569d5c665 100644 (file)
--- a/sound/drivers/opl4/opl4_synth.c
+++ b/sound/drivers/opl4/opl4_synth.c
@@ -248,7 +248,7 @@ static const s16 snd_opl4_pitch_map[0x600] = {
  * Attenuation according to GM recommendations, in -0.375 dB units.
  * table[v] = 40 * log(v / 127) / -0.375
  */
-static unsigned char snd_opl4_volume_table[128] = {
+static const unsigned char snd_opl4_volume_table[128] = {
        255,224,192,173,160,150,141,134,
        128,122,117,113,109,105,102, 99,
         96, 93, 90, 88, 85, 83, 81, 79,