IFQ_DRV_IS_EMPTY
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd) &&
while (!IFQ_DRV_IS_EMPTY(&sc->tulip_ifp->if_snd)) {
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
for (queued = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) &&
if (!IFQ_DRV_IS_EMPTY(&sc->sis_ifp->if_snd))
if ((ifp->if_flags & IFF_UP) && !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
return (IFQ_DRV_IS_EMPTY(&ifp->if_snd));