ALSA: cs46xx: More constifications

Apply const prefix to each possible place: the static tables for
registers and op codes, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-30-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index cbac9f1..e46efae 100644 (file)
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -3745,7 +3745,7 @@ static struct cs_card_type cards[] = {
  * APM support
  */
 #ifdef CONFIG_PM_SLEEP
-static unsigned int saved_regs[] = {
+static const unsigned int saved_regs[] = {
        BA0_ACOSV,
        /*BA0_ASER_FADDR,*/
        BA0_ASER_MASTER,

diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c
index 887790a..05f3f6d 100644 (file)
--- a/sound/pci/cs46xx/dsp_spos.c
+++ b/sound/pci/cs46xx/dsp_spos.c
@@ -27,7 +27,7 @@
 static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
                                  struct dsp_scb_descriptor * fg_entry);
 
-static enum wide_opcode wide_opcodes[] = { 
+static const enum wide_opcode wide_opcodes[] = {
        WIDE_FOR_BEGIN_LOOP,
        WIDE_FOR_BEGIN_LOOP2,
        WIDE_COND_GOTO_ADDR,
@@ -1038,7 +1038,7 @@ int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip)
        
        int fifo_addr, fifo_span, valid_slots;
 
-       static struct dsp_spos_control_block sposcb = {
+       static const struct dsp_spos_control_block sposcb = {
                /* 0 */ HFG_TREE_SCB,HFG_STACK,
                /* 1 */ SPOSCB_ADDR,BG_TREE_SCB_ADDR,
                /* 2 */ DSP_SPOS_DC,0,

diff --git a/sound/pci/cs46xx/dsp_spos_scb_lib.c b/sound/pci/cs46xx/dsp_spos_scb_lib.c
index 715ead5..2c5c9d4 100644 (file)
--- a/sound/pci/cs46xx/dsp_spos_scb_lib.c
+++ b/sound/pci/cs46xx/dsp_spos_scb_lib.c
@@ -1145,7 +1145,7 @@ find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
        return scb;
 }
 
-static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
+static const u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
        0x0600, /* 1 */
        0x1500, /* 2 */
        0x1580, /* 3 */
@@ -1180,7 +1180,7 @@ static u32 pcm_reader_buffer_addr[DSP_MAX_PCM_CHANNELS] = {
        0x2400, /* 32 */
 };
 
-static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
+static const u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
        0x2B80,
        0x2BA0,
        0x2BC0,
@@ -1197,7 +1197,7 @@ static u32 src_output_buffer_addr[DSP_MAX_SRC_NR] = {
        0x2E20
 };
 
-static u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
+static const u32 src_delay_buffer_addr[DSP_MAX_SRC_NR] = {
        0x2480,
        0x2500,
        0x2580,