linux-kernel - [PATCH] ASoC: ak4642: make arrays fs_list and ps

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Message-Id: <20170630091636.8287-1-colin.king@canonical.com>
Date:   Fri, 30 Jun 2017 10:16:36 +0100
From:   Colin King <colin.king@...onical.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Harunobu Kurokawa <harunobu.kurokawa.dn@...esas.com>,
        alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: ak4642: make arrays fs_list and ps_list static const

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

Don't populate the arrays fs_list and ps_list on the stack but make
them static const.  Makes the object code smaller:

Before:
   text    data     bss     dec     hex filename
  12084    4888      64   17036    428c sound/soc/codecs/ak4642.o

After:
   text    data     bss     dec     hex filename
  11883    5032      64   16979    4253 sound/soc/codecs/ak4642.o

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 sound/soc/codecs/ak4642.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 23ab9646c351..66de8a2013a6 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -433,7 +433,7 @@ static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 static int ak4642_set_mcko(struct snd_soc_codec *codec,
 			   u32 frequency)
 {
-	u32 fs_list[] = {
+	static const u32 fs_list[] = {
 		[0] = 8000,
 		[1] = 12000,
 		[2] = 16000,
@@ -447,7 +447,7 @@ static int ak4642_set_mcko(struct snd_soc_codec *codec,
 		[14] = 29400,
 		[15] = 44100,
 	};
-	u32 ps_list[] = {
+	static const u32 ps_list[] = {
 		[0] = 256,
 		[1] = 128,
 		[2] = 64,
-- 
2.11.0