Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: Nye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: NLeon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/202212051918564721658@zte.com.cnSigned-off-by: NJakub Kicinski <kuba@kernel.org>