static void cleanup_bearer(struct work_struct *work)
{
	struct udp_bearer *ub = container_of(work, struct udp_bearer, work);
	struct udp_replicast *rcast, *tmp;

	list_for_each_entry_safe(rcast, tmp, &ub->rcast.list, list) {
		dst_cache_destroy(&rcast->dst_cache);
		list_del_rcu(&rcast->list);
		kfree_rcu(rcast, rcu);
	}

	dst_cache_destroy(&ub->rcast.dst_cache);
	udp_tunnel_sock_release(ub->ubsock);
	synchronize_net();
	kfree(ub);
}
static void cleanup_bearer(struct work_struct *work)
{
	struct udp_bearer *ub = container_of(work, struct udp_bearer, work);
	struct udp_replicast *rcast, *tmp;

	list_for_each_entry_safe(rcast, tmp, &ub->rcast.list, list) {
		dst_cache_destroy(&rcast->dst_cache);
		list_del_rcu(&rcast->list);
		kfree_rcu(rcast, rcu);
	}

	dst_cache_destroy(&ub->rcast.dst_cache);
	udp_tunnel_sock_release(ub->ubsock);
	synchronize_net();
	kfree(ub);
}