linux-kernel - [PATCH] ASoC: amd: acp6x-pdm-dma: Constify static snd_soc_dai

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Date:   Sat,  4 Dec 2021 12:08:48 +0100
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Vijendar Mukunda <Vijendar.Mukunda@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] ASoC: amd: acp6x-pdm-dma: Constify static snd_soc_dai_ops

The only usage of acp6x_pdm_dai_ops is to assign its address to the ops
field in the snd_soc_dai_driver struct, which is a pointer to const
snd_soc_dai_ops. Make it const to allow the compiler to put it in
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 sound/soc/amd/yc/acp6x-pdm-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/amd/yc/acp6x-pdm-dma.c b/sound/soc/amd/yc/acp6x-pdm-dma.c
index e604f4ea524f..7e66393e4153 100644
--- a/sound/soc/amd/yc/acp6x-pdm-dma.c
+++ b/sound/soc/amd/yc/acp6x-pdm-dma.c
@@ -318,7 +318,7 @@ static int acp6x_pdm_dai_trigger(struct snd_pcm_substream *substream,
 	return ret;
 }
 
-static struct snd_soc_dai_ops acp6x_pdm_dai_ops = {
+static const struct snd_soc_dai_ops acp6x_pdm_dai_ops = {
 	.trigger   = acp6x_pdm_dai_trigger,
 };
 
-- 
2.34.1