Define pcibus_to_node() for IP27.

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/pci/pci-ip27.c

@@ -485,5 +485,12 @@ static void __init pci_fixup_ioc3(struct pci_dev *d)
 	pci_disable_swapping(d);
 }
 
+int pcibus_to_node(struct pci_bus *bus)
+{
+	struct bridge_controller *bc = BRIDGE_CONTROLLER(bus);
+
+	return bc->nasid;
+}
+
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3,
 	pci_fixup_ioc3);

include/asm-mips/mach-ip27/topology.h

@@ -9,6 +9,9 @@
 #define parent_node(node)	(node)
 #define node_to_cpumask(node)	(hub_data(node)->h_cpus)
 #define node_to_first_cpu(node)	(first_cpu(node_to_cpumask(node)))
+struct pci_bus;
+extern int pcibus_to_node(struct pci_bus *);
+
 #define pcibus_to_cpumask(bus)	(cpu_online_map)
 
 extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];