1 files changed, 2 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index ba949a2c93a..ccf56ac92de 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -97,7 +97,9 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
          * to do an appropriate TLB flush here too
          */
         if (bus->self) {
+#ifdef CONFIG_PPC_STD_MMU_64
                 struct resource *res = bus->resource[0];
+#endif
 
                 pr_debug("IO unmapping for PCI-PCI bridge %s\n",
                          pci_name(bus->self));