2506f5dcb8
Use DEVICE_ATTR_RO()/RW() macro helper instead of plain DEVICE_ATTR(), which makes the code a bit shorter and easier to read. Link: https://lore.kernel.org/r/20210616034419.725-5-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>