40 static int check_args(struct pci_bus *bus, u32 devfn, u32 * bus_num)  in check_args()  argument
44 		*bus_num = bus->number;  in check_args()
45 		db_assert(bus_num != NULL);  in check_args()
47 		*bus_num = 0;  in check_args()
49 	if (*bus_num == 0) {  in check_args()
55 		if ((*bus_num >= 64) || (PCI_SLOT(devfn) >= 16))  in check_args()
61 static inline int set_pci_configuration_address(unsigned char bus_num,  in set_pci_configuration_address()  argument
67 	if (bus_num == 0)  in set_pci_configuration_address()
76 		config_win0 = (bus_num << 26) | (PCI_SLOT(devfn) << 22) |  in set_pci_configuration_address()
87 	u32 bus_num;  in pci_config_read()  local
94 	if (check_args(bus, devfn, &bus_num) == PCIBIOS_DEVICE_NOT_FOUND)  in pci_config_read()
99 	if (set_pci_configuration_address(bus_num, devfn, where) < 0)  in pci_config_read()
132 	u32 bus_num;  in pci_config_write()  local
138 	if (check_args(bus, devfn, &bus_num) == PCIBIOS_DEVICE_NOT_FOUND)  in pci_config_write()
143 	if (set_pci_configuration_address(bus_num, devfn, where) < 0)  in pci_config_write()