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: ye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/202212051918564721658@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len)
{
- return scnprintf(buf, PAGE_SIZE, "%*phC\n", len, addr);
+ return sysfs_emit(buf, "%*phC\n", len, addr);
}
EXPORT_SYMBOL(sysfs_format_mac);