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ASoC: rl6231: make arrays div and pd static const, reduces object code size 

Don't populate the read-only arrays div and pd on the stack,
instead make them static const. Makes the object code smaller by 210 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   2869	    720	      0	   3589	    e05	sound/soc/codecs/rl6231.o

After:
   text	   data	    bss	    dec	    hex	filename
   2495	    880	      0	   3375	    d2f	sound/soc/codecs/rl6231.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Colin Ian King 2017-09-19 22:50:00 +01:00 committed by Mark Brown
parent 2bd6bf03f4
commit 57f7feff29
1 changed files with 3 additions and 2 deletions
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5
sound/soc/codecs/rl6231.c
View File

@ -71,7 +71,7 @@ EXPORT_SYMBOL_GPL(rl6231_get_pre_div);
*/
int rl6231_calc_dmic_clk(int rate)
{
int div[] = {2, 3, 4, 6, 8, 12};
static const int div[] = {2, 3, 4, 6, 8, 12};
int i;
if (rate < 1000000 * div[0]) {
@ -189,7 +189,8 @@ EXPORT_SYMBOL_GPL(rl6231_pll_calc);
int rl6231_get_clk_info(int sclk, int rate)
{
int i, pd[] = {1, 2, 3, 4, 6, 8, 12, 16};
int i;
static const int pd[] = {1, 2, 3, 4, 6, 8, 12, 16};
if (sclk <= 0 || rate <= 0)
return -EINVAL;