Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210526141019.13752-1-yuehaibing@huawei.comSigned-off-by: NJuergen Gross <jgross@suse.com>