int cgroup_add_legacy_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
{
	struct cftype *cft;

	for (cft = cfts; cft && cft->name[0] != '\0'; cft++)
		cft->flags |= __CFTYPE_NOT_ON_DFL;
	return cgroup_add_cftypes(ss, cfts);
}
int cgroup_add_legacy_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
{
	struct cftype *cft;

	for (cft = cfts; cft && cft->name[0] != '\0'; cft++)
		cft->flags |= __CFTYPE_NOT_ON_DFL;
	return cgroup_add_cftypes(ss, cfts);
}