linux-kernel - [PATCH 01/10] ASoC: au1x: constify snd_pcm

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Date:   Mon, 14 Aug 2017 11:26:24 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     perex@...ex.cz, tiwai@...e.com, lgirdwood@...il.com,
        broonie@...nel.org
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH 01/10] ASoC: au1x: constify snd_pcm_ops structures

snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/soc.h> work with
const snd_pcm_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 sound/soc/au1x/dbdma2.c | 2 +-
 sound/soc/au1x/dma.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index b5d1caa..6a035ca 100644
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -304,7 +304,7 @@ static int au1xpsc_pcm_close(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static struct snd_pcm_ops au1xpsc_pcm_ops = {
+static const struct snd_pcm_ops au1xpsc_pcm_ops = {
 	.open		= au1xpsc_pcm_open,
 	.close		= au1xpsc_pcm_close,
 	.ioctl		= snd_pcm_lib_ioctl,
diff --git a/sound/soc/au1x/dma.c b/sound/soc/au1x/dma.c
index fcf5a9a..19457e2 100644
--- a/sound/soc/au1x/dma.c
+++ b/sound/soc/au1x/dma.c
@@ -277,7 +277,7 @@ static snd_pcm_uframes_t alchemy_pcm_pointer(struct snd_pcm_substream *ss)
 	return bytes_to_frames(ss->runtime, location);
 }
 
-static struct snd_pcm_ops alchemy_pcm_ops = {
+static const struct snd_pcm_ops alchemy_pcm_ops = {
 	.open			= alchemy_pcm_open,
 	.close			= alchemy_pcm_close,
 	.ioctl			= snd_pcm_lib_ioctl,
-- 
1.9.1