DMA_B
sc->sc_type = (rev == 'B') ? DMA_B : DMA_C;
if (sc->sc_type == DMA_B && sc->sc_ipl != 3) {
if (sc->sc_type == DMA_B && (flags & DMAGO_LWORD))
&& (sc->sc_type != DMA_B ||
if (sc->sc_type == DMA_B) { \