Index: head/share/man/man4/ena.4
===================================================================
--- head/share/man/man4/ena.4
+++ head/share/man/man4/ena.4
@@ -1,4 +1,6 @@
-.\" Copyright (c) 2015-2017 Amazon.com, Inc. or its affiliates.
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
Index: head/sys/dev/ena/ena.h
===================================================================
--- head/sys/dev/ena/ena.h
+++ head/sys/dev/ena/ena.h
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena.c
===================================================================
--- head/sys/dev/ena/ena.c
+++ head/sys/dev/ena/ena.c
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_datapath.h
===================================================================
--- head/sys/dev/ena/ena_datapath.h
+++ head/sys/dev/ena/ena_datapath.h
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_datapath.c
===================================================================
--- head/sys/dev/ena/ena_datapath.c
+++ head/sys/dev/ena/ena_datapath.c
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_netmap.h
===================================================================
--- head/sys/dev/ena/ena_netmap.h
+++ head/sys/dev/ena/ena_netmap.h
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_netmap.c
===================================================================
--- head/sys/dev/ena/ena_netmap.c
+++ head/sys/dev/ena/ena_netmap.c
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_sysctl.h
===================================================================
--- head/sys/dev/ena/ena_sysctl.h
+++ head/sys/dev/ena/ena_sysctl.h
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/dev/ena/ena_sysctl.c
===================================================================
--- head/sys/dev/ena/ena_sysctl.c
+++ head/sys/dev/ena/ena_sysctl.c
@@ -1,5 +1,5 @@
 /*-
- * BSD LICENSE
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
Index: head/sys/modules/ena/Makefile
===================================================================
--- head/sys/modules/ena/Makefile
+++ head/sys/modules/ena/Makefile
@@ -1,7 +1,7 @@
 #
-# BSD LICENSE
+# SPDX-License-Identifier: BSD-2-Clause
 #
-# Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates.
+# Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without