powerpc/pci: Rename pcibios_find_pci_bus()

This renames pcibios_find_pci_bus() to pci_find_bus_by_node() to
avoid conflicts with those PCI subsystem weak function names, which
have prefix "pcibios". No logical changes introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/pseries/pci_dlpar.c

@@ -54,8 +54,7 @@ find_bus_among_children(struct pci_bus *bus,
 	return child;
 }
 
-struct pci_bus *
-pcibios_find_pci_bus(struct device_node *dn)
+struct pci_bus *pci_find_bus_by_node(struct device_node *dn)
 {
 	struct pci_dn *pdn = dn->data;
 
@@ -64,7 +63,7 @@ pcibios_find_pci_bus(struct device_node *dn)
 
 	return find_bus_among_children(pdn->phb->bus, dn);
 }
-EXPORT_SYMBOL_GPL(pcibios_find_pci_bus);
+EXPORT_SYMBOL_GPL(pci_find_bus_by_node);
 
 struct pci_controller *init_phb_dynamic(struct device_node *dn)
 {