sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

sys/amd64/amd64/bpf_jit_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2002-2003 NetGroup, Politecnico di Torino (Italy)
  * Copyright (C) 2005-2017 Jung-uk Kim <jkim@FreeBSD.org>
  * All rights reserved.

sys/amd64/amd64/bpf_jit_machdep.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2002-2003 NetGroup, Politecnico di Torino (Italy)
  * Copyright (C) 2005-2016 Jung-uk Kim <jkim@FreeBSD.org>
  * All rights reserved.

sys/amd64/amd64/fpu.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 William Jolitz.
  * Copyright (c) 1991 The Regents of the University of California.
  * All rights reserved.

sys/amd64/amd64/genassym.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/amd64/mem.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
  * All rights reserved.

sys/amd64/amd64/sys_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.

sys/amd64/amd64/uio_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2004 Alan L. Cox <alc@cs.rice.edu>
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/amd64/ia32/ia32_signal.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm
  * Copyright (c) 1982, 1987, 1990 The Regents of the University of California.
  * All rights reserved.

sys/amd64/include/asm.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/asmacros.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/cpu.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/cpufunc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1993 The Regents of the University of California.
  * All rights reserved.

sys/amd64/include/exec.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/amd64/include/fpu.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/in_cksum.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/limits.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/amd64/include/md_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1995 Bruce D. Evans.
  * All rights reserved.
  *

sys/amd64/include/pcb.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.

sys/amd64/include/pmap.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1991 Regents of the University of California.
  * All rights reserved.

sys/amd64/include/proc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1991 Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/include/profile.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/amd64/include/reloc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/amd64/include/segments.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1990 William F. Jolitz
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.

sys/amd64/include/tss.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/amd64/vmm/vmm_stat.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2011 NetApp, Inc.
  * All rights reserved.
  *

sys/arm/arm/mem.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
  * All rights reserved.

sys/arm/arm/sys_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/arm/arm/uio_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2004 Alan L. Cox <alc@cs.rice.edu>
  * Copyright (c) 1982, 1986, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/arm/freescale/imx/imx_common.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008-2011 MARVELL INTERNATIONAL LTD.
  * Copyright (c) 2012, 2013 The FreeBSD Foundation
  * All rights reserved.

sys/arm/include/_limits.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/arm/include/asm.h

@@ -1,6 +1,8 @@
 /*	$NetBSD: asm.h,v 1.5 2003/08/07 16:26:53 agc Exp $	*/
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/arm/include/endian.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001 David E. O'Brien
  *
  * Redistribution and use in source and binary forms, with or without

sys/arm/include/exec.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001 David E. O'Brien
  * All rights reserved.
  *

sys/arm/include/float.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989 Regents of the University of California.
  * All rights reserved.
  *

sys/arm/include/ieee.h

@@ -1,6 +1,8 @@
 /*	$NetBSD: ieee754.h,v 1.4 2003/10/27 02:30:26 simonb Exp $	*/
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/arm/include/in_cksum.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/arm/include/limits.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/arm/include/md_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1995 Bruce D. Evans.
  * All rights reserved.
  *

sys/arm/include/pmap.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2016 Svatopluk Kraus
  * Copyright (c) 2016 Michal Meloun
  * All rights reserved.

sys/arm/include/signal.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1986, 1989, 1991, 1993
  *      The Regents of the University of California.  All rights reserved.
  *

sys/arm/include/stdarg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
  * Copyright (c) 1991, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/arm/include/vmparam.h

@@ -1,6 +1,8 @@
 /*	$NetBSD: vmparam.h,v 1.26 2003/08/07 16:27:47 agc Exp $	*/
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988 The Regents of the University of California.
  * All rights reserved.
  *

sys/arm/mv/discovery/discovery.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/kirkwood/kirkwood.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/mv_common.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008-2011 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/mv_pci.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 MARVELL INTERNATIONAL LTD.
  * Copyright (c) 2010 The FreeBSD Foundation
  * Copyright (c) 2010-2015 Semihalf

sys/arm/mv/mvreg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2007-2011 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/mvwin.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2007-2011 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/orion/db88f5xxx.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/orion/orion.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/mv/rtc.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/ti/ti_edma3.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
  * Copyright (c) 2012 Damjan Marion <dmarion@Freebsd.org>
  * All rights reserved.

sys/arm/versatile/versatile_common.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 2008-2011 MARVELL INTERNATIONAL LTD.
  * All rights reserved.
  *

sys/arm/xscale/ixp425/if_npereg.h

@@ -30,6 +30,8 @@
  */
 
 /*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001-2005, Intel Corporation.
  * All rights reserved.
  *

sys/arm/xscale/ixp425/ixp425_npe.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2006-2008 Sam Leffler, Errno Consulting
  * All rights reserved.
  *

sys/arm/xscale/ixp425/ixp425_npereg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2006 Sam Leffler, Errno Consulting
  * All rights reserved.
  *

sys/arm/xscale/ixp425/ixp425_qmgr.c

@@ -28,6 +28,8 @@
  */
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001-2005, Intel Corporation.
  * All rights reserved.
  *

sys/arm/xscale/ixp425/ixp425_qmgr.h

@@ -30,6 +30,8 @@
  */
 
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001-2005, Intel Corporation.
  * All rights reserved.
  *

sys/bsm/audit.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2005-2009 Apple Inc.
  * Copyright (c) 2016 Robert N. M. Watson
  * All rights reserved.

sys/bsm/audit_domain.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 Apple Inc.
  * All rights reserved.
  *

sys/bsm/audit_errno.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 Apple Inc.
  * All rights reserved.
  *

sys/bsm/audit_fcntl.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2009 Apple Inc.
  * All rights reserved.
  *

sys/bsm/audit_internal.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2005-2008 Apple Inc.
  * Copyright (c) 2005 SPARTA, Inc.
  * All rights reserved.

sys/bsm/audit_kevents.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2005-2009 Apple Inc.
  * All rights reserved.
  *

sys/bsm/audit_record.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2005-2009 Apple Inc.
  * All rights reserved.
  *

sys/bsm/audit_socket_type.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 Apple Inc.
  * All rights reserved.
  *

sys/compat/freebsd32/freebsd32_ioctl.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 David E. O'Brien
  * All rights reserved.
  *

sys/compat/freebsd32/freebsd32_ioctl.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2008 David E. O'Brien
  * All rights reserved.
  *

sys/conf/newvers.sh

@@ -1,4 +1,6 @@
 #!/bin/sh -
+# SPDX-License-Identifier: BSD-3-Clause
+#
 #
 # Copyright (c) 1984, 1986, 1990, 1993
 #	The Regents of the University of California.  All rights reserved.

sys/conf/systags.sh

@@ -1,5 +1,7 @@
 #! /bin/sh
 #
+# SPDX-License-Identifier: BSD-3-Clause
+#
 # Copyright (c) 1992, 1993
 #	The Regents of the University of California.  All rights reserved.
 #

sys/crypto/sha1.c

@@ -1,5 +1,7 @@
 /*	$KAME: sha1.c,v 1.5 2000/11/08 06:13:08 itojun Exp $	*/
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
  *

sys/crypto/sha1.h

@@ -1,7 +1,9 @@
 /*	$FreeBSD$	*/
 /*	$KAME: sha1.h,v 1.5 2000/03/27 04:36:23 sumikawa Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
  *

sys/ddb/db_ps.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993 The Regents of the University of California.
  * All rights reserved.
  *

sys/ddb/ddb.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993, Garrett A. Wollman.
  * Copyright (c) 1993, University of Vermont and State Agricultural College.
  * All rights reserved.

sys/fs/cd9660/cd9660_bmap.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_lookup.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_mount.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1995
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_node.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1994, 1995
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_node.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_rrip.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_rrip.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_util.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_vfsops.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/cd9660_vnops.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/iso.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/cd9660/iso_rrip.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/deadfs/dead_vnops.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_alloc.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_balloc.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_bmap.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.

sys/fs/ext2fs/ext2_extern.h

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_inode.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_lookup.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.

sys/fs/ext2fs/ext2_mount.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_subr.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_vfsops.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1989, 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/ext2_vnops.c

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.

sys/fs/ext2fs/fs.h

@@ -5,6 +5,8 @@
  *  University of Utah, Department of Computer Science
  */
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/fs/ext2fs/inode.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1982, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.

sys/fs/fdescfs/fdesc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *