Input: elantech - constify attribute_group structures
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Tue, 11 Jul 2017 03:22:40 +0000 (20:22 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Wed, 12 Jul 2017 21:19:28 +0000 (14:19 -0700)
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

index e8cc223..65c9de3 100644 (file)
@@ -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,
 };