static int unix_stream_read_sock(struct sock *sk, read_descriptor_t *desc,
				 sk_read_actor_t recv_actor)
{
	if (unlikely(sk->sk_state != TCP_ESTABLISHED))
		return -ENOTCONN;

	return unix_read_sock(sk, desc, recv_actor);
}
static int unix_stream_read_sock(struct sock *sk, read_descriptor_t *desc,
				 sk_read_actor_t recv_actor)
{
	if (unlikely(sk->sk_state != TCP_ESTABLISHED))
		return -ENOTCONN;

	return unix_read_sock(sk, desc, recv_actor);
}