ppc64: Fix a bad shift against PCI_BASE_CLASS_BRIDGE from Will Schmidt

arch/ppc64/kernel/pci.c

@@ -124,7 +124,7 @@ struct pci_dev *pci_find_dev_by_addr(unsigned long addr)
 	ioaddr = (addr > isa_io_base) ? addr - isa_io_base : 0;
 
 	pci_for_each_dev(dev) {
-		if ((dev->class >> 8) == PCI_BASE_CLASS_BRIDGE)
+		if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)
 			continue;
 		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 			unsigned long start = pci_resource_start(dev,i);

include/asm-ppc64/pci-bridge.h

@@ -77,7 +77,7 @@ struct device_node *fetch_dev_dn(struct pci_dev *dev);
 static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
 {
 	struct device_node *dn = (struct device_node *)(dev->sysdata);
-	if (dn->devfn == dev->devfn && dn->busno == dev->bus->number)
+	if (dn->devfn == dev->devfn && dn->busno == (dev->bus->number&0xff))
 		return dn;	/* fast path.  sysdata is good */
 	else
 		return fetch_dev_dn(dev);