extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
-extern int pci_read_irq_line(struct pci_dev *dev);
-
struct file;
extern pgprot_t pci_phys_mem_access_prot(struct file *file,
unsigned long pfn,