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Subject[PATCH] ASoC: rl6231: make arrays div and pd static const, reduces object code size
Date
From: Colin Ian King <colin.king@canonical.com>

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>
---
sound/soc/codecs/rl6231.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rl6231.c b/sound/soc/codecs/rl6231.c
index 7b447d0b173a..974a9040651d 100644
--- a/sound/soc/codecs/rl6231.c
+++ b/sound/soc/codecs/rl6231.c
@@ -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;
--
2.14.1
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