[PATCH] ASoC: uniphier: make arrays mul and div static const, makes object smaller

Colin King
2021-08-18T15:17:57Z

From: Colin Ian King <colin.king@canonical.com>

Don't populate the arrays mul and div on the stack but instead make them
static const. Makes the object code smaller by 4 bytes.

Before:
text data bss dec hex filename
16226 4984 64 21274 531a ./sound/soc/uniphier/aio-cpu.o

After:
text data bss dec hex filename
16062 5144 64 21270 5316 ./sound/soc/uniphier/aio-cpu.o

(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
sound/soc/uniphier/aio-cpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/uniphier/aio-cpu.c b/sound/soc/uniphier/aio-cpu.c
index cf9814130067..4e8d5f7532ba 100644
--- a/sound/soc/uniphier/aio-cpu.c
+++ b/sound/soc/uniphier/aio-cpu.c
@@ -128,8 +128,8 @@ static const struct uniphier_aio_spec *find_spec(struct uniphier_aio *aio,
static int find_divider(struct uniphier_aio *aio, int pll_id, unsigned int freq)
{
struct uniphier_aio_pll *pll;
- int mul[] = { 1, 1, 1, 2, };
- int div[] = { 2, 3, 1, 3, };
+ static const int mul[] = { 1, 1, 1, 2, };
+ static const int div[] = { 2, 3, 1, 3, };
int i;

if (!is_valid_pll(aio->chip, pll_id))
--
2.32.0