tcp_check_req
struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
if (!tcp_check_req(sk, skb, req, true, &req_stolen, &reason))
nsk = tcp_check_req(sk, skb, req, false, &req_stolen,
EXPORT_IPV6_MOD(tcp_check_req);
nsk = tcp_check_req(sk, skb, req, false, &req_stolen,