inet_bhash2_update_saddr
int inet_bhash2_update_saddr(struct sock *sk, void *saddr, int family);
err = inet_bhash2_update_saddr(sk, &new_saddr, AF_INET);
EXPORT_IPV6_MOD(inet_bhash2_update_saddr);
err = inet_bhash2_update_saddr(sk, &fl4->saddr, AF_INET);
err = inet_bhash2_update_saddr(sk, saddr, AF_INET6);