linux-kernel - [PATCH] omapfb: panel-tpo-td043mtea1: constify attribute

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Date:   Wed, 19 Jul 2017 10:53:11 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     tomi.valkeinen@...com, b.zolnierkie@...sung.com
Cc:     linux-omap@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] omapfb: panel-tpo-td043mtea1: constify attribute_group structures.

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

File size before:
   text	   data	    bss	    dec	    hex	filename
   2673	    368	      0	   3041	    be1	panel-tpo-td043mtea1.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   2737	    304	      0	   3041	    be1	panel-tpo-td043mtea1.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index 51e628b..ea8c79a 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
@@ -282,7 +282,7 @@ static DEVICE_ATTR(gamma, S_IRUGO | S_IWUSR,
 	NULL,
 };
 
-static struct attribute_group tpo_td043_attr_group = {
+static const struct attribute_group tpo_td043_attr_group = {
 	.attrs = tpo_td043_attrs,
 };
 
-- 
1.9.1