linux-kernel - [PATCH] ASoC: fsl: constify static snd_soc_dai

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Message-Id: <20210206225849.51071-1-rikard.falkeborn@gmail.com>
Date:   Sat,  6 Feb 2021 23:58:49 +0100
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Timur Tabi <timur@...nel.org>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     Fabio Estevam <festevam@...il.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        alsa-devel@...a-project.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] ASoC: fsl: constify static snd_soc_dai_ops structs

The only usage of these is to assign their address to the 'ops' field in
the snd_soc_dai_driver struct, which is a pointer to const. Make them
const to allow the compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 sound/soc/fsl/fsl_easrc.c  | 2 +-
 sound/soc/fsl/fsl_micfil.c | 2 +-
 sound/soc/fsl/fsl_xcvr.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index 60951a8aabd3..636a702f37a6 100644
--- a/sound/soc/fsl/fsl_easrc.c
+++ b/sound/soc/fsl/fsl_easrc.c
@@ -1530,7 +1530,7 @@ static int fsl_easrc_hw_free(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static struct snd_soc_dai_ops fsl_easrc_dai_ops = {
+static const struct snd_soc_dai_ops fsl_easrc_dai_ops = {
 	.startup = fsl_easrc_startup,
 	.trigger = fsl_easrc_trigger,
 	.hw_params = fsl_easrc_hw_params,
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index 8aedf6590b28..5935af2e5ff4 100644
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -381,7 +381,7 @@ static int fsl_micfil_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
 	return ret;
 }
 
-static struct snd_soc_dai_ops fsl_micfil_dai_ops = {
+static const struct snd_soc_dai_ops fsl_micfil_dai_ops = {
 	.startup = fsl_micfil_startup,
 	.trigger = fsl_micfil_trigger,
 	.hw_params = fsl_micfil_hw_params,
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index dd228b421e2c..6dd0a5fcd455 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -857,7 +857,7 @@ static struct snd_kcontrol_new fsl_xcvr_tx_ctls[] = {
 	},
 };
 
-static struct snd_soc_dai_ops fsl_xcvr_dai_ops = {
+static const struct snd_soc_dai_ops fsl_xcvr_dai_ops = {
 	.prepare = fsl_xcvr_prepare,
 	.startup = fsl_xcvr_startup,
 	.shutdown = fsl_xcvr_shutdown,
-- 
2.30.0