PM: hibernate: constify attribute_group structures.
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Thu, 29 Jun 2017 11:28:40 +0000 (16:58 +0530)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 29 Jun 2017 21:05:48 +0000 (23:05 +0200)
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
   6332     488     308    7128    1bd8 kernel/power/hibernate.o

File size After adding 'const':
   text    data     bss     dec     hex filename
   6396     424     308    7128    1bd8 kernel/power/hibernate.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
kernel/power/hibernate.c

index a8b978c35a6a9392c3d4721e12f68c9794ac620b..e1914c7b85b180e7683eed48738e14443dbadc62 100644 (file)
@@ -1108,7 +1108,7 @@ static struct attribute * g[] = {
 };
 
 
-static struct attribute_group attr_group = {
+static const struct attribute_group attr_group = {
        .attrs = g,
 };