2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 251acea3d359..3991502b21e5 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -247,6 +247,13 @@ struct sys_device *get_cpu_sysdev(unsigned cpu)
 }
 EXPORT_SYMBOL_GPL(get_cpu_sysdev);
 
+bool cpu_is_hotpluggable(unsigned cpu)
+{
+        struct sys_device *dev = get_cpu_sysdev(cpu);
+        return dev && container_of(dev, struct cpu, sysdev)->hotpluggable;
+}
+EXPORT_SYMBOL_GPL(cpu_is_hotpluggable);
+
 int __init cpu_dev_init(void)
 {
         int err;
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 6cb60fd2ea84..305c263021e7 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -27,6 +27,7 @@ struct cpu {
 
 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);