linux-kernel - [PATCH] ASoC: rsnd: constify dev_pm

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Message-Id: <6de23d3755cd8c312f213173338e26de6c319f6d.1498712868.git.arvind.yadav.cs@gmail.com>
Date:   Thu, 29 Jun 2017 10:40:50 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, hiroyuki.yokoyama.vx@...esas.com,
        baoyou.xie@...aro.org
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: rsnd: constify dev_pm_ops structures.

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

File size before:
   text	   data	    bss	    dec	    hex	filename
   8172	    920	      0	   9092	   2384	sound/soc/sh/rcar/core.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   8364	    728	      0	   9092	   2384	sound/soc/sh/rcar/core.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 sound/soc/sh/rcar/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 1744015..e327436 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1281,7 +1281,7 @@ static int rsnd_resume(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops rsnd_pm_ops = {
+static const struct dev_pm_ops rsnd_pm_ops = {
 	.suspend		= rsnd_suspend,
 	.resume			= rsnd_resume,
 };
-- 
1.9.1