40 files changed, 80 insertions, 0 deletions

diff --git a/sys/compat/freebsd32/freebsd32.h b/sys/compat/freebsd32/freebsd32.h
index 002c272758198..1ce2076260631 100644
--- a/sys/compat/freebsd32/freebsd32.h
+++ b/sys/compat/freebsd32/freebsd32.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2001 Doug Rabson
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_capability.c b/sys/compat/freebsd32/freebsd32_capability.c
index cc4cad2c2077e..0acbf2ddb6bb8 100644
--- a/sys/compat/freebsd32/freebsd32_capability.c
+++ b/sys/compat/freebsd32/freebsd32_capability.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_ipc.h b/sys/compat/freebsd32/freebsd32_ipc.h
index 1f457f8f678ff..c15a45a3da487 100644
--- a/sys/compat/freebsd32/freebsd32_ipc.h
+++ b/sys/compat/freebsd32/freebsd32_ipc.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2002 Doug Rabson
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
index 1c8386c82cc5a..4eaa06e8ec712 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2002 Doug Rabson
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_misc.h b/sys/compat/freebsd32/freebsd32_misc.h
index b81a9a1b46e4f..7db8fe6b84e0d 100644
--- a/sys/compat/freebsd32/freebsd32_misc.h
+++ b/sys/compat/freebsd32/freebsd32_misc.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_signal.h b/sys/compat/freebsd32/freebsd32_signal.h
index 4106646a791a8..cc7aeb858fb15 100644
--- a/sys/compat/freebsd32/freebsd32_signal.h
+++ b/sys/compat/freebsd32/freebsd32_signal.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2006 David Xu <davidxu@freebsd.org>
  * All rights reserved.
  *
diff --git a/sys/compat/freebsd32/freebsd32_util.h b/sys/compat/freebsd32/freebsd32_util.h
index a6269d573a6d2..17319a5188268 100644
--- a/sys/compat/freebsd32/freebsd32_util.h
+++ b/sys/compat/freebsd32/freebsd32_util.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1998-1999 Andrew Gallatin
  * All rights reserved.
  *
diff --git a/sys/compat/ia32/ia32_signal.h b/sys/compat/ia32/ia32_signal.h
index ce51596fd4def..ec8702971ef03 100644
--- a/sys/compat/ia32/ia32_signal.h
+++ b/sys/compat/ia32/ia32_signal.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999 Marcel Moolenaar
  * Copyright (c) 2003 Peter Wemm
  * All rights reserved.
diff --git a/sys/compat/ia32/ia32_sysvec.c b/sys/compat/ia32/ia32_sysvec.c
index b6faf86def380..5ad3030d0348c 100644
--- a/sys/compat/ia32/ia32_sysvec.c
+++ b/sys/compat/ia32/ia32_sysvec.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2002 Doug Rabson
  * Copyright (c) 2003 Peter Wemm
  * All rights reserved.
diff --git a/sys/compat/ia32/ia32_util.h b/sys/compat/ia32/ia32_util.h
index 41aad4e8cac1d..8a41b90b2afac 100644
--- a/sys/compat/ia32/ia32_util.h
+++ b/sys/compat/ia32/ia32_util.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1998-1999 Andrew Gallatin
  * All rights reserved.
  *
diff --git a/sys/compat/linsysfs/linsysfs.c b/sys/compat/linsysfs/linsysfs.c
index 6df23d07ad92c..1e66c17ee7273 100644
--- a/sys/compat/linsysfs/linsysfs.c
+++ b/sys/compat/linsysfs/linsysfs.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2006 IronPort Systems
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_dtrace.h b/sys/compat/linux/linux_dtrace.h
index 6e913279b9350..0bf42f43bac10 100644
--- a/sys/compat/linux/linux_dtrace.h
+++ b/sys/compat/linux/linux_dtrace.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008-2012 Alexander Leidinger <netchild@FreeBSD.org>
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_emul.c b/sys/compat/linux/linux_emul.c
index 8be4fa2df0c93..ce82bd75a34ee 100644
--- a/sys/compat/linux/linux_emul.c
+++ b/sys/compat/linux/linux_emul.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2006 Roman Divacky
  * Copyright (c) 2013 Dmitry Chagin
  * All rights reserved.
diff --git a/sys/compat/linux/linux_emul.h b/sys/compat/linux/linux_emul.h
index 9a5a66788e79d..653f6bac5976d 100644
--- a/sys/compat/linux/linux_emul.h
+++ b/sys/compat/linux/linux_emul.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2006 Roman Divacky
  * Copyright (c) 2013 Dmitry Chagin
  * All rights reserved.
diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index f5dc9f438b7d1..5c62b460a21ec 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_file.h b/sys/compat/linux/linux_file.h
index f27d5b41cc8dd..17450092b20ad 100644
--- a/sys/compat/linux/linux_file.h
+++ b/sys/compat/linux/linux_file.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2007 Roman Divacky
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_fork.c b/sys/compat/linux/linux_fork.c
index 971006d78caab..104679e08588e 100644
--- a/sys/compat/linux/linux_fork.c
+++ b/sys/compat/linux/linux_fork.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2004 Tim J. Robbins
  * Copyright (c) 2002 Doug Rabson
  * Copyright (c) 2000 Marcel Moolenaar
diff --git a/sys/compat/linux/linux_futex.c b/sys/compat/linux/linux_futex.c
index 7cbdaea6f5a11..7741983bcd381 100644
--- a/sys/compat/linux/linux_futex.c
+++ b/sys/compat/linux/linux_futex.c
@@ -1,6 +1,8 @@
 /*	$NetBSD: linux_futex.c,v 1.7 2006/07/24 19:01:49 manu Exp $ */
 
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2009-2016 Dmitry Chagin
  * Copyright (c) 2005 Emmanuel Dreyfus
  * All rights reserved.
diff --git a/sys/compat/linux/linux_futex.h b/sys/compat/linux/linux_futex.h
index 792274313de5e..d5798e9156093 100644
--- a/sys/compat/linux/linux_futex.h
+++ b/sys/compat/linux/linux_futex.h
@@ -1,6 +1,8 @@
 /*	$NetBSD: linux_futex.h,v 1.2 2005/12/11 12:20:19 christos Exp $ */
 
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/compat/linux/linux_getcwd.c b/sys/compat/linux/linux_getcwd.c
index e6be015a4094c..49fa94720c60b 100644
--- a/sys/compat/linux/linux_getcwd.c
+++ b/sys/compat/linux/linux_getcwd.c
@@ -1,6 +1,8 @@
 /* $OpenBSD: linux_getcwd.c,v 1.2 2001/05/16 12:50:21 ho Exp $ */
 /* $NetBSD: vfs_getcwd.c,v 1.3.2.3 1999/07/11 10:24:09 sommerfeld Exp $ */
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
  * Copyright (c) 2015 The FreeBSD Foundation
  * All rights reserved.
diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c
index b77db6c34dde2..9e4b744cb3efd 100644
--- a/sys/compat/linux/linux_ioctl.c
+++ b/sys/compat/linux/linux_ioctl.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_ioctl.h b/sys/compat/linux/linux_ioctl.h
index 82d253f410a65..34a2063f62219 100644
--- a/sys/compat/linux/linux_ioctl.h
+++ b/sys/compat/linux/linux_ioctl.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_ipc.c b/sys/compat/linux/linux_ipc.c
index 9fa1fed6d8e13..2a38cc4ca9365 100644
--- a/sys/compat/linux/linux_ipc.c
+++ b/sys/compat/linux/linux_ipc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_ipc.h b/sys/compat/linux/linux_ipc.h
index 8e9c050db9c73..6761a472dfcc0 100644
--- a/sys/compat/linux/linux_ipc.h
+++ b/sys/compat/linux/linux_ipc.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2000 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_mib.c b/sys/compat/linux/linux_mib.c
index 7c9235cce5b4a..b3c36435abffc 100644
--- a/sys/compat/linux/linux_mib.c
+++ b/sys/compat/linux/linux_mib.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_mib.h b/sys/compat/linux/linux_mib.h
index 80b6c973e3e91..5fac1acdf3c05 100644
--- a/sys/compat/linux/linux_mib.h
+++ b/sys/compat/linux/linux_mib.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 7d44fb928be7b..59492dad5a6ab 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2002 Doug Rabson
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
diff --git a/sys/compat/linux/linux_misc.h b/sys/compat/linux/linux_misc.h
index 98ffd2263647f..482137148eef9 100644
--- a/sys/compat/linux/linux_misc.h
+++ b/sys/compat/linux/linux_misc.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2006 Roman Divacky
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_signal.c b/sys/compat/linux/linux_signal.c
index e9e3f3d541c87..19a34fdd7b2e2 100644
--- a/sys/compat/linux/linux_signal.c
+++ b/sys/compat/linux/linux_signal.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_signal.h b/sys/compat/linux/linux_signal.h
index 510bfb38397ca..8f35dd3a9d325 100644
--- a/sys/compat/linux/linux_signal.h
+++ b/sys/compat/linux/linux_signal.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2000 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
index d10e966f57593..edb3dd5e2cda3 100644
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_socket.h b/sys/compat/linux/linux_socket.h
index 8cf4b6f61e1c4..b3cc60e845839 100644
--- a/sys/compat/linux/linux_socket.h
+++ b/sys/compat/linux/linux_socket.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2000 Assar Westerlund
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c
index 66a96ab484373..419351f7358c4 100644
--- a/sys/compat/linux/linux_stats.c
+++ b/sys/compat/linux/linux_stats.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994-1995 Søren Schmidt
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_sysctl.c b/sys/compat/linux/linux_sysctl.c
index 44fe41dd3f9eb..cc0462f906668 100644
--- a/sys/compat/linux/linux_sysctl.c
+++ b/sys/compat/linux/linux_sysctl.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2001 Marcel Moolenaar
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_sysproto.h b/sys/compat/linux/linux_sysproto.h
index 69f1577dc457d..cc392fb1b5ea9 100644
--- a/sys/compat/linux/linux_sysproto.h
+++ b/sys/compat/linux/linux_sysproto.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2005 Travis Poppe
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_time.c b/sys/compat/linux/linux_time.c
index be059a6092b9c..5bbabbcbb0e22 100644
--- a/sys/compat/linux/linux_time.c
+++ b/sys/compat/linux/linux_time.c
@@ -1,6 +1,8 @@
 /*	$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $ */
 
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_uid16.c b/sys/compat/linux/linux_uid16.c
index 8aa728cf73e62..f15b0df87088c 100644
--- a/sys/compat/linux/linux_uid16.c
+++ b/sys/compat/linux/linux_uid16.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2001  The FreeBSD Project
  * All rights reserved.
  *
diff --git a/sys/compat/linux/linux_util.c b/sys/compat/linux/linux_util.c
index 2c3c259f297fd..4cae2ffecc37d 100644
--- a/sys/compat/linux/linux_util.c
+++ b/sys/compat/linux/linux_util.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994 Christos Zoulas
  * Copyright (c) 1995 Frank van der Linden
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/linux/linux_util.h b/sys/compat/linux/linux_util.h
index 2cf42c07eeeb3..68c2498a556ec 100644
--- a/sys/compat/linux/linux_util.h
+++ b/sys/compat/linux/linux_util.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1994 Christos Zoulas
  * Copyright (c) 1995 Frank van der Linden
  * Copyright (c) 1995 Scott Bartram
diff --git a/sys/compat/netbsd/dvcfg.h b/sys/compat/netbsd/dvcfg.h
index 817ab3d707b3a..809c14a95aff2 100644
--- a/sys/compat/netbsd/dvcfg.h
+++ b/sys/compat/netbsd/dvcfg.h
@@ -1,6 +1,8 @@
 /* $FreeBSD$ */
 /*	$NetBSD$	*/
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * [NetBSD for NEC PC98 series]
  *  Copyright (c) 1996 NetBSD/pc98 porting staff.
  *  All rights reserved.