+#ifdef CONFIG_NUMA
+extern int register_one_node(int nid);
+extern void unregister_one_node(int nid);
+extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
+extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
+#else
+static inline int register_one_node(int nid)
+{
+ return 0;
+}
+static inline int unregister_one_node(int nid)
+{
+ return 0;
+}
+static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid)
+{
+ return 0;
+}
+static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
+{
+ return 0;
+}
+#endif