--- zzzz-none-000/linux-4.4.60/drivers/usb/dwc3/debug.c	2017-04-08 07:53:53.000000000 +0000
+++ jet-2400-727/linux-4.4.60/drivers/usb/dwc3/debug.c	2021-03-17 14:36:41.000000000 +0000
@@ -30,3 +30,4 @@
 
 	va_end(args);
 }
+EXPORT_SYMBOL(dwc3_trace);