static int ctnetlink_get_ct_unconfirmed(struct net *net, struct sock *ctnl,
					struct sk_buff *skb,
					const struct nlmsghdr *nlh,
					const struct nlattr * const cda[],
					struct netlink_ext_ack *extack)
{
	if (nlh->nlmsg_flags & NLM_F_DUMP) {
		struct netlink_dump_control c = {
			.dump = ctnetlink_dump_unconfirmed,
			.done = ctnetlink_done_list,
		};
		return netlink_dump_start(ctnl, skb, nlh, &c);
	}

	return -EOPNOTSUPP;
}