diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index e19bbc38a722..673f21465377 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -61,6 +61,7 @@ extern ssize_t cpu_show_tsx_async_abort(struct device *dev,
 					char *buf);
 extern ssize_t cpu_show_itlb_multihit(struct device *dev,
 				      struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_srbds(struct device *dev, struct device_attribute *attr, char *buf);
 
 extern __printf(4, 5)
 struct device *cpu_device_create(struct device *parent, void *drvdata,