pci_bus_insert_busn_res
pci_bus_insert_busn_res(bus, of_read_number(busrange, 1),
pci_bus_insert_busn_res(bus, busrange[0], busrange[1]);
pci_bus_insert_busn_res(child, busnr, busnr);
pci_bus_insert_busn_res(bus, bus->number, res->end);
pci_bus_insert_busn_res(child, secondary, subordinate);
pci_bus_insert_busn_res(child, next_busnr,
pci_bus_insert_busn_res(b, res->start, res->end);
pci_bus_insert_busn_res(b, bus, 255);
pci_bus_insert_busn_res(b, bus, 255);
pci_bus_insert_busn_res(child, next_busnr, bus->busn_res.end);
int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int busmax);