https://github.com/util-linux/util-linux/pull/2248
https://bugs.gentoo.org/906797

--- a/tests/helpers/test_enosys.c
+++ b/tests/helpers/test_enosys.c
@@ -68,6 +68,7 @@ const struct syscall syscalls[] = {
 	{ "move_mount", __NR_move_mount },
 	{ "open_tree", __NR_open_tree },
 	{ "fsopen", __NR_fsopen },
+	{ "mount_setattr", __NR_mount_setattr },
 };
 
 int main(int argc, char **argv)