diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 44922e6381da..087ab2248855 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -734,6 +734,7 @@ static int driver_resume(struct usb_interface *intf)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 /* The following routines apply to the entire device, not interfaces */
 void usbfs_notify_suspend(struct usb_device *udev)
 {
@@ -752,6 +753,7 @@ void usbfs_notify_resume(struct usb_device *udev)
 	}
 	mutex_unlock(&usbfs_mutex);
 }
+#endif
 
 struct usb_driver usbfs_driver = {
 	.name =		"usbfs",