attribute_group are not supposed to change at runtime. All functions working with attribute_group 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 1019 160 0 1179 49b drivers/s390/crypto/zcrypt_card.o File size After adding 'const': text data bss dec hex filename 1083 96 0 1179 49b drivers/s390/crypto/zcrypt_card.o Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com> --- drivers/s390/crypto/zcrypt_card.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/crypto/zcrypt_card.c b/drivers/s390/crypto/zcrypt_card.c index 53436ea..f85dacf 100644 --- a/drivers/s390/crypto/zcrypt_card.c +++ b/drivers/s390/crypto/zcrypt_card.c @@ -98,7 +98,7 @@ static DEVICE_ATTR(online, 0644, zcrypt_card_online_show, NULL, }; -static struct attribute_group zcrypt_card_attr_group = { +static const struct attribute_group zcrypt_card_attr_group = { .attrs = zcrypt_card_attrs, }; -- 1.9.1