_bus_dmamap_load_busaddr
error = _bus_dmamap_load_busaddr(t, map, curaddr, sgsize);
static int _bus_dmamap_load_busaddr(bus_dma_tag_t, bus_dmamap_t,
error = _bus_dmamap_load_busaddr(t, map,
error = _bus_dmamap_load_busaddr(t, map,
error = _bus_dmamap_load_busaddr(t, map,
error = _bus_dmamap_load_busaddr(t, map, ds->ds_addr, sgsize);