diff --git a/sys/dev/usb/usb_hub.c b/sys/dev/usb/usb_hub.c
--- a/sys/dev/usb/usb_hub.c
+++ b/sys/dev/usb/usb_hub.c
@@ -954,7 +954,8 @@
  * packet. This function is called having the "bus_mtx" locked.
  *------------------------------------------------------------------------*/
 void
-uhub_root_intr(struct usb_bus *bus, const uint8_t *ptr, uint8_t len)
+uhub_root_intr(struct usb_bus *bus,
+    const uint8_t *ptr __unused, uint8_t len __unused)
 {
 	USB_BUS_LOCK_ASSERT(bus, MA_OWNED);