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 3802 624 32 4458 116a kernel/power/main.o File size After adding 'const': text data bss dec hex filename 3866 560 32 4458 116a kernel/power/main.o Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com> --- kernel/power/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/main.c b/kernel/power/main.c index d401c21..42bd800 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -705,7 +705,7 @@ static ssize_t pm_freeze_timeout_store(struct kobject *kobj, NULL, }; -static struct attribute_group attr_group = { +static const struct attribute_group attr_group = { .attrs = g, }; -- 1.9.1