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 5302 544 0 5846 16d6 block/partition-generic.o File size After adding 'const': text data bss dec hex filename 5342 480 0 5822 16be block/partition-generic.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> --- block/partition-generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/partition-generic.c b/block/partition-generic.c index ff07b91..47fa20d 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -196,7 +196,7 @@ static DEVICE_ATTR(discard_alignment, S_IRUGO, part_discard_alignment_show, NULL }; -static struct attribute_group part_attr_group = { +static const struct attribute_group part_attr_group = { .attrs = part_attrs, }; -- 1.9.1