diff --git a/drivers/base/physical_location.h b/drivers/base/physical_location.h
index 82cde9f1b161..3f3f61307998 100644
--- a/drivers/base/physical_location.h
+++ b/drivers/base/physical_location.h
@@ -8,7 +8,7 @@
 #include <linux/device.h>
 
 #ifdef CONFIG_ACPI
-extern bool dev_add_physical_location(struct device *dev);
+bool dev_add_physical_location(struct device *dev);
 extern const struct attribute_group dev_attr_physical_location_group;
 #else
 static inline bool dev_add_physical_location(struct device *dev) { return false; };