From 579994334df06372ca57c5418edcb79e2c8864f8 Mon Sep 17 00:00:00 2001
From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Mon, 10 Jul 2017 20:22:40 -0700
Subject: [PATCH] Input: elantech - 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
  16815	   1424	      0	  18239	   473f	drivers/input/mouse/elantech.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  16879	   1360	      0	  18239	   473f	drivers/input/mouse/elantech.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/elantech.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index e8cc223373ae..65c9de3f516c 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1375,7 +1375,7 @@ static struct attribute *elantech_attrs[] = {
 	NULL
 };
 
-static struct attribute_group elantech_attr_group = {
+static const struct attribute_group elantech_attr_group = {
 	.attrs = elantech_attrs,
 };