[POWERPC] Move pci_bus_to_hose users to pci_bus_to_host

In the places we can move to using pci_bus_to_host, this allows us
to make pci_bus_to_host static and remove its export.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/kernel/pci_32.c

@@ -766,7 +766,7 @@ static struct device_node *scan_OF_for_pci_bus(struct pci_bus *bus)
 
 	/* Are we a root bus ? */
 	if (bus->self == NULL || bus->parent == NULL) {
-		struct pci_controller *hose = pci_bus_to_hose(bus->number);
+		struct pci_controller *hose = pci_bus_to_host(bus);
 		if (hose == NULL)
 			return NULL;
 		return of_node_get(hose->arch_data);
@@ -1492,7 +1492,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
-struct pci_controller*
+static struct pci_controller*
 pci_bus_to_hose(int bus)
 {
 	struct pci_controller* hose = hose_head;
@@ -1507,7 +1507,7 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev,
 					       resource_size_t *offset,
 					       enum pci_mmap_state mmap_state)
 {
-	struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
+	struct pci_controller *hose = pci_bus_to_host(dev->bus);
 	unsigned long io_offset = 0;
 	int i, res_bit;
 
@@ -1719,7 +1719,7 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar,
 			  const struct resource *rsrc,
 			  resource_size_t *start, resource_size_t *end)
 {
-	struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
+	struct pci_controller *hose = pci_bus_to_host(dev->bus);
 	resource_size_t offset = 0;
 
 	if (hose == NULL)

arch/powerpc/kernel/ppc_ksyms.c

@@ -106,7 +106,6 @@ EXPORT_SYMBOL(isa_mem_base);
 EXPORT_SYMBOL(pci_dram_offset);
 EXPORT_SYMBOL(pci_alloc_consistent);
 EXPORT_SYMBOL(pci_free_consistent);
-EXPORT_SYMBOL(pci_bus_to_hose);
 #endif /* CONFIG_PCI */
 
 EXPORT_SYMBOL(start_thread);

arch/powerpc/platforms/86xx/pci.c

@@ -145,7 +145,7 @@ static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev)
 	 */
 	dev->transparent = 1;
 
-	hose = pci_bus_to_hose(dev->bus->number);
+	hose = pci_bus_to_host(dev->bus);
 	if (!hose) {
 		printk(KERN_ERR "Can't find hose for bus %d\n",
 		       dev->bus->number);

include/asm-powerpc/pci-bridge.h

@@ -9,9 +9,6 @@
 struct device_node;
 struct pci_controller;
 
-/* Get the PCI host controller for a bus */
-extern struct pci_controller* pci_bus_to_hose(int bus);
-
 /*
  * Structure of a PCI controller (host bridge)
  */