sock_create_lite
ret = sock_create_lite(sock->sk->sk_family, sock->sk->sk_type,
int sock_create_lite(int family, int type, int proto, struct socket **res);
if (sock_create_lite(PF_NETLINK, SOCK_DGRAM, unit, &sock))
err = sock_create_lite(sk->sk_family, SOCK_SEQPACKET, IPPROTO_SCTP, &sock);
EXPORT_SYMBOL(sock_create_lite);
err = sock_create_lite(sk->sk_family, sk->sk_type, sk->sk_protocol,