cpu-hotplug: fix build on !CONFIG_SMP
fix build on !CONFIG_SMP.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 3a3ff1c..0be8d65 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -71,19 +71,25 @@
int cpu_up(unsigned int cpu);
+extern void cpu_hotplug_init(void);
+
#else
static inline int register_cpu_notifier(struct notifier_block *nb)
{
return 0;
}
+
static inline void unregister_cpu_notifier(struct notifier_block *nb)
{
}
+static inline void cpu_hotplug_init(void)
+{
+}
+
#endif /* CONFIG_SMP */
extern struct sysdev_class cpu_sysdev_class;
-extern void cpu_hotplug_init(void);
extern void cpu_maps_update_begin(void);
extern void cpu_maps_update_done(void);