mfd: ab8500-core: Constify attribute_group structures
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Mon, 10 Jul 2017 05:37:22 +0000 (11:07 +0530)
committerLee Jones <lee.jones@linaro.org>
Tue, 5 Sep 2017 07:46:00 +0000 (08:46 +0100)
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
  16298    1009     184   17491    4453 drivers/mfd/ab8500-core.o

File size After adding 'const':
   text    data     bss     dec     hex filename
  16490     817     184   17491    4453 drivers/mfd/ab8500-core.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
drivers/mfd/ab8500-core.c

index 8511c06..30d09d1 100644 (file)
@@ -1059,15 +1059,15 @@ static struct attribute *ab9540_sysfs_entries[] = {
        NULL,
 };
 
-static struct attribute_group ab8500_attr_group = {
+static const struct attribute_group ab8500_attr_group = {
        .attrs  = ab8500_sysfs_entries,
 };
 
-static struct attribute_group ab8505_attr_group = {
+static const struct attribute_group ab8505_attr_group = {
        .attrs  = ab8505_sysfs_entries,
 };
 
-static struct attribute_group ab9540_attr_group = {
+static const struct attribute_group ab9540_attr_group = {
        .attrs  = ab9540_sysfs_entries,
 };