ipv4: Use flowi4_init_output() in cookie_v4_check()

	 * no easy way to do this.

	 */

	{

		struct flowi4 fl4 = {

			.flowi4_mark = sk->sk_mark,

			.daddr = ((opt && opt->srr) ?

				  opt->faddr : ireq->rmt_addr),

			.saddr = ireq->loc_addr,

			.flowi4_tos = RT_CONN_FLAGS(sk),

			.flowi4_proto = IPPROTO_TCP,

			.flowi4_flags = inet_sk_flowi_flags(sk),

			.fl4_sport = th->dest,

			.fl4_dport = th->source,

		};

		struct flowi4 fl4;

		flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),

				   RT_SCOPE_UNIVERSE, IPPROTO_TCP,

				   inet_sk_flowi_flags(sk),

				   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,

				   ireq->loc_addr, th->source, th->dest);

		security_req_classify_flow(req, flowi4_to_flowi(&fl4));

		rt = ip_route_output_key(sock_net(sk), &fl4);

		if (IS_ERR(rt)) {