rem: static void pci_scan_bus(uint8 bus)
add: pci_scan_bus(uint8 bus)
context: static void pci_scan_bus(uint8 bus){	uint8 dev = 0, func = 0;	uint16 vend = 0;		for (dev = 0; dev < 32; dev++) {		vend = read_pci_config(bus, dev, 0, PCI_vendor_id, 2);		if (vend != 0xffff) {			uint16 device = read_pci_config(bus, dev, func, PCI_device_id, 2);			uint8 type = read_pci_config(bus, dev, func, PCI_header_type, 1);			uint8 nfunc = 8;						type &= PCI_header_type_mask;						if ((type & PCI_multifunction) == 0 &&			    !pci_quirk_multifunction(vend, device))				nfunc = 1;							for (func = 0; func < nfunc; func++)				pci_device_probe(bus, dev, func);		}	}}