linux-kernel - [PATCH] input: psmouse: constify attribute

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Date:   Wed,  5 Jul 2017 16:31:45 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dmitry.torokhov@...il.com, benjamin.tissoires@...hat.com
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] input: psmouse: constify attribute_group structures.

attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups 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
  12850	    740	     12	  13602	   3522	drivers/input/mouse/psmouse-base.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  12914	    676	     12	  13602	   3522	drivers/input/mouse/psmouse-base.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/input/mouse/psmouse-base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index f73b47b..6a5649e 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -101,7 +101,7 @@
 	NULL
 };

-static struct attribute_group psmouse_attribute_group = {
+static const struct attribute_group psmouse_attribute_group = {
 	.attrs	= psmouse_attributes,
 };

-- 
1.9.1