diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 6cb60fd..305c263 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -27,6 +27,7 @@
 
 extern int register_cpu(struct cpu *cpu, int num);
 extern struct sys_device *get_cpu_sysdev(unsigned cpu);
+extern bool cpu_is_hotpluggable(unsigned cpu);
 
 extern int cpu_add_sysdev_attr(struct sysdev_attribute *attr);
 extern void cpu_remove_sysdev_attr(struct sysdev_attribute *attr);