[PATCH] ASoC: rt5514: make array div static const, makes object smaller

[PATCH] ASoC: rt5514: make array div static const, makes object smaller

[Colin King]

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

Don't populate the array div on the stack but instead it
static const. Makes the object code smaller by 48 bytes.

Before:
   text    data     bss     dec     hex filename
  53894   16368     128   70390   112f6 ./sound/soc/codecs/rt5514.o

After:
   text    data     bss     dec     hex filename
  53750   16464     128   70342   112c6 ./sound/soc/codecs/rt5514.o

(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 sound/soc/codecs/rt5514.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index 7081142a355e..4b1ad5054e8d 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -494,7 +494,7 @@ static const struct snd_kcontrol_new rt5514_sto2_dmic_mux =
  */
 static int rt5514_calc_dmic_clk(struct snd_soc_component *component, int rate)
 {
-	int div[] = {2, 3, 4, 8, 12, 16, 24, 32};
+	static const int div[] = {2, 3, 4, 8, 12, 16, 24, 32};
 	int i;
 
 	if (rate < 1000000 * div[0]) {
-- 
2.31.1

Re: [PATCH] ASoC: rt5514: make array div static const, makes object smaller

[Mark Brown]

On Sun, 1 Aug 2021 07:40:23 +0100, Colin King wrote:
> Don't populate the array div on the stack but instead it
> static const. Makes the object code smaller by 48 bytes.
> 
> Before:
>    text    data     bss     dec     hex filename
>   53894   16368     128   70390   112f6 ./sound/soc/codecs/rt5514.o
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: rt5514: make array div static const, makes object smaller
      commit: 5c8a7efc2fd5eb716c48d7d7ab4295effbc09ba3

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark