ipv4: Use flowi4_init_output() in inet_connection_sock.c

	struct rtable *rt;

	const struct inet_request_sock *ireq = inet_rsk(req);

	struct ip_options *opt = inet_rsk(req)->opt;

	struct flowi4 fl4 = {

		.flowi4_oif = sk->sk_bound_dev_if,

		.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 = sk->sk_protocol,

		.flowi4_flags = inet_sk_flowi_flags(sk),

		.fl4_sport = inet_sk(sk)->inet_sport,

		.fl4_dport = ireq->rmt_port,

	};

	struct net *net = sock_net(sk);

	struct flowi4 fl4;

	flowi4_init_output(&fl4, sk->sk_bound_dev_if, sk->sk_mark,

			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,

			   sk->sk_protocol, inet_sk_flowi_flags(sk),

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

			   ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);

	security_req_classify_flow(req, flowi4_to_flowi(&fl4));

	rt = ip_route_output_flow(net, &fl4, sk);

	if (IS_ERR(rt))