diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 4b2548357872b9e0580c76a795d17cfaf4befe26..4941275f80c20ddecdccf26b6cdfc520c13299a6 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -2100,6 +2100,7 @@ void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)
 {
 	per_cpu(cpu_scale, cpu) = capacity;
 }
+EXPORT_SYMBOL(topology_set_cpu_scale);
 
 static ssize_t cpu_capacity_show(struct device *dev,
 				 struct device_attribute *attr,