diff --git a/sys/sys/buf_ring.h b/sys/sys/buf_ring.h
--- a/sys/sys/buf_ring.h
+++ b/sys/sys/buf_ring.h
@@ -3,6 +3,7 @@
  *
  * Copyright (c) 2007-2009 Kip Macy <kmacy@freebsd.org>
  * All rights reserved.
+ * Copyright (c) 2024 Arm Ltd
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions