linux-kernel - [PATCH] ASoC: mediatek: mt8195: make array adda_dai

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Message-Id: <20210915105027.10805-1-colin.king@canonical.com>
Date:   Wed, 15 Sep 2021 11:50:27 +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>,
        Matthias Brugger <matthias.bgg@...il.com>,
        alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: mediatek: mt8195: make array adda_dai_list static const

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

Don't populate the array adda_dai_list on the stack but instead it
static const. Also makes the object code smaller by 33 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  28271	  11640	      0	  39911	   9be7	mt8195/mt8195-dai-adda.o

After:
   text	   data	    bss	    dec	    hex	filename
  28142	  11736	      0	  39878	   9bc6	mt8195/mt8195-dai-adda.o

(gcc version 11.2.0)

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 sound/soc/mediatek/mt8195/mt8195-dai-adda.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/mt8195/mt8195-dai-adda.c b/sound/soc/mediatek/mt8195/mt8195-dai-adda.c
index 878dec0b69ed..f04bd1781356 100644
--- a/sound/soc/mediatek/mt8195/mt8195-dai-adda.c
+++ b/sound/soc/mediatek/mt8195/mt8195-dai-adda.c
@@ -788,9 +788,11 @@ static int init_adda_priv_data(struct mtk_base_afe *afe)
 {
 	struct mt8195_afe_private *afe_priv = afe->platform_priv;
 	struct mtk_dai_adda_priv *adda_priv;
-	int adda_dai_list[] = { MT8195_AFE_IO_DL_SRC,
-				MT8195_AFE_IO_UL_SRC1,
-				MT8195_AFE_IO_UL_SRC2};
+	static const int adda_dai_list[] = {
+		MT8195_AFE_IO_DL_SRC,
+		MT8195_AFE_IO_UL_SRC1,
+		MT8195_AFE_IO_UL_SRC2
+	};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(adda_dai_list); i++) {
-- 
2.32.0