diff --git a/drivers/staging/usbip/stub.h b/drivers/staging/usbip/stub.h
index bfea5dcd6adb..cd3a5bf825c7 100644
--- a/drivers/staging/usbip/stub.h
+++ b/drivers/staging/usbip/stub.h
@@ -86,21 +86,22 @@ struct bus_id_priv {
 	char shutdown_busid;
 };
 
+/* stub_priv is allocated from stub_priv_cache */
 extern struct kmem_cache *stub_priv_cache;
 
-/* stub_tx.c */
-void stub_complete(struct urb *);
-int stub_tx_loop(void *data);
-
 /* stub_dev.c */
 extern struct usb_driver stub_driver;
 
-/* stub_rx.c */
-int stub_rx_loop(void *data);
-void stub_enqueue_ret_unlink(struct stub_device *, __u32, __u32);
-
 /* stub_main.c */
 struct bus_id_priv *get_busid_priv(const char *busid);
 int del_match_busid(char *busid);
-
 void stub_device_cleanup_urbs(struct stub_device *sdev);
+
+/* stub_rx.c */
+int stub_rx_loop(void *data);
+
+/* stub_tx.c */
+void stub_enqueue_ret_unlink(struct stub_device *sdev, __u32 seqnum,
+			     __u32 status);
+void stub_complete(struct urb *urb);
+int stub_tx_loop(void *data);