IFQF_DELETE
ifq->ifq_flags &= ~IFQF_DELETE;
ifq->ifq_flags |= IFQF_DELETE;
if (((ifq->ifq_flags & IFQF_DELETE) == 0) || (ifq->ifq_ref != 0) ||
if (((ifq->ifq_flags & IFQF_DELETE) != 0) &&
if (((ifq->ifq_flags & IFQF_DELETE) != 0) &&