xfs: mark xfs_errortag_ktype static

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_error.c

@@ -203,7 +203,7 @@ static struct attribute *xfs_errortag_attrs[] = {
 	NULL,
 };
 
-struct kobj_type xfs_errortag_ktype = {
+static struct kobj_type xfs_errortag_ktype = {
 	.release = xfs_sysfs_release,
 	.sysfs_ops = &xfs_errortag_sysfs_ops,
 	.default_attrs = xfs_errortag_attrs,