list_add_tail(&iucv_sk(sk)->accept_q, &par->accept_q);
        spin_unlock_irqrestore(&par->accept_q_lock, flags);
        iucv_sk(sk)->parent = parent;
-       parent->sk_ack_backlog++;
+       sk_acceptq_added(parent);
 }
 
 void iucv_accept_unlink(struct sock *sk)
        spin_lock_irqsave(&par->accept_q_lock, flags);
        list_del_init(&iucv_sk(sk)->accept_q);
        spin_unlock_irqrestore(&par->accept_q_lock, flags);
-       iucv_sk(sk)->parent->sk_ack_backlog--;
+       sk_acceptq_removed(iucv_sk(sk)->parent);
        iucv_sk(sk)->parent = NULL;
        sock_put(sk);
 }