diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index d055196..90a9625 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -983,6 +983,7 @@
 		reqp->number = i % NUM_SUBCASES;
 		reqp->expected = expected;
 		u->setup_packet = (char *) &reqp->setup;
+		u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
 
 		u->context = &context;
 		u->complete = ctrl_complete;