11 static struct pci_bus *find_pci_root_bus(struct pci_bus *bus)  in find_pci_root_bus()  argument
13 	while (bus->parent)  in find_pci_root_bus()
14 		bus = bus->parent;  in find_pci_root_bus()
16 	return bus;  in find_pci_root_bus()
19 struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus)  in pci_find_host_bridge()  argument
21 	struct pci_bus *root_bus = find_pci_root_bus(bus);  in pci_find_host_bridge()
28 	struct pci_bus *root_bus = find_pci_root_bus(dev->bus);  in pci_get_host_bridge_device()
48 void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region,  in pcibios_resource_to_bus()  argument
51 	struct pci_host_bridge *bridge = pci_find_host_bridge(bus);  in pcibios_resource_to_bus()
73 void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res,  in pcibios_bus_to_resource()  argument
76 	struct pci_host_bridge *bridge = pci_find_host_bridge(bus);  in pcibios_bus_to_resource()