pci_find_next_bus
while ((pbus = pci_find_next_bus(pbus)) != NULL) {
while ((bus = pci_find_next_bus(bus)) &&
while ((b = pci_find_next_bus(b)) != NULL) {
while ((pbus = pci_find_next_bus(pbus)))
while ((b = pci_find_next_bus(b)) != NULL)
while ((bus = pci_find_next_bus(bus)) != NULL) {
EXPORT_SYMBOL(pci_find_next_bus);
while ((b = pci_find_next_bus(b)) != NULL)
struct pci_bus *pci_find_next_bus(const struct pci_bus *from);