ALSA: hdsp: More constifications

Apply const prefix to each channel map table and its callers.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-19-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 632f787..ba2a47d 100644 (file)
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -479,7 +479,7 @@ struct hdsp {
        pid_t                 playback_pid;
        int                   running;
        int                   system_sample_rate;
-       char                 *channel_map;
+       const char           *channel_map;
        int                   dev;
        int                   irq;
        unsigned long         port;
@@ -501,12 +501,12 @@ struct hdsp {
    where the data for that channel can be read/written from/to.
 */
 
-static char channel_map_df_ss[HDSP_MAX_CHANNELS] = {
+static const char channel_map_df_ss[HDSP_MAX_CHANNELS] = {
        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
        18, 19, 20, 21, 22, 23, 24, 25
 };
 
-static char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
+static const char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
        /* Analog */
        0, 1, 2, 3, 4, 5, 6, 7,
        /* ADAT 2 */
@@ -516,7 +516,7 @@ static char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
        -1, -1, -1, -1, -1, -1, -1, -1
 };
 
-static char channel_map_ds[HDSP_MAX_CHANNELS] = {
+static const char channel_map_ds[HDSP_MAX_CHANNELS] = {
        /* ADAT channels are remapped */
        1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
        /* channels 12 and 13 are S/PDIF */
@@ -525,7 +525,7 @@ static char channel_map_ds[HDSP_MAX_CHANNELS] = {
        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
 };
 
-static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
+static const char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
        /* ADAT channels */
        0, 1, 2, 3, 4, 5, 6, 7,
        /* SPDIF */
@@ -539,7 +539,7 @@ static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
        -1, -1
 };
 
-static char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
+static const char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
        /* ADAT */
        1, 3, 5, 7,
        /* SPDIF */
@@ -553,7 +553,7 @@ static char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
        -1, -1, -1, -1, -1, -1
 };
 
-static char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = {
+static const char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = {
        /* ADAT is disabled in this mode */
        /* SPDIF */
        8, 9,