diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 40d4e79..82b68c7 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -300,6 +300,7 @@
 }
 EXPORT_SYMBOL_GPL(remove_memory);
 
+#ifdef CONFIG_NUMA
 int memory_add_physaddr_to_nid(u64 addr)
 {
 	/* Node 0 for now.. */
@@ -307,3 +308,4 @@
 }
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
+#endif