17 files changed, 20 insertions, 96 deletions
diff --git a/net/6lowpan/core.c b/net/6lowpan/core.c
index 40d3d72beb53..2d68351f1ac4 100644
--- a/net/6lowpan/core.c
+++ b/net/6lowpan/core.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
  *
  * Authors:
  * (C) 2015 Pengutronix, Alexander Aring <aar@pengutronix.de>
diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c
index 536aae52eead..f5a8eec9d7a3 100644
--- a/net/6lowpan/debugfs.c
+++ b/net/6lowpan/debugfs.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
  *
  * Authors:
  * (C) 2015 Pengutronix, Alexander Aring <aar@pengutronix.de>
diff --git a/net/6lowpan/ndisc.c b/net/6lowpan/ndisc.c
index 941df2fa4448..16be8f8b2f8c 100644
--- a/net/6lowpan/ndisc.c
+++ b/net/6lowpan/ndisc.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
  *
  * Authors:
  * (C) 2016 Pengutronix, Alexander Aring <aar@pengutronix.de>
diff --git a/net/6lowpan/nhc.c b/net/6lowpan/nhc.c
index 9e56fb98f33c..d6bbbd4ab38b 100644
--- a/net/6lowpan/nhc.c
+++ b/net/6lowpan/nhc.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN next header compression
  *
- *
  *	Authors:
  *	Alexander Aring		<aar@pengutronix.de>
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include <linux/netdevice.h>
diff --git a/net/6lowpan/nhc_dest.c b/net/6lowpan/nhc_dest.c
index 0b292c9646eb..4768a9459212 100644
--- a/net/6lowpan/nhc_dest.c
+++ b/net/6lowpan/nhc_dest.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Destination Options Header compression according to
  *	RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_fragment.c b/net/6lowpan/nhc_fragment.c
index 473dbc58ef84..be85f07715bd 100644
--- a/net/6lowpan/nhc_fragment.c
+++ b/net/6lowpan/nhc_fragment.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Fragment Header compression according to RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_dest.c b/net/6lowpan/nhc_ghc_ext_dest.c
index 9887b3a15348..a9137f1733be 100644
--- a/net/6lowpan/nhc_ghc_ext_dest.c
+++ b/net/6lowpan/nhc_ghc_ext_dest.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN Extension Header compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_frag.c b/net/6lowpan/nhc_ghc_ext_frag.c
index 1308b79e939d..d49b745918e0 100644
--- a/net/6lowpan/nhc_ghc_ext_frag.c
+++ b/net/6lowpan/nhc_ghc_ext_frag.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN Extension Header compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_hop.c b/net/6lowpan/nhc_ghc_ext_hop.c
index baec86fd1974..3beedf5140a3 100644
--- a/net/6lowpan/nhc_ghc_ext_hop.c
+++ b/net/6lowpan/nhc_ghc_ext_hop.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN Extension Header compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_route.c b/net/6lowpan/nhc_ghc_ext_route.c
index d7e5bd791c62..70dc0ea3cf66 100644
--- a/net/6lowpan/nhc_ghc_ext_route.c
+++ b/net/6lowpan/nhc_ghc_ext_route.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN Extension Header compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_icmpv6.c b/net/6lowpan/nhc_ghc_icmpv6.c
index 32e7c2c66bbc..339ceffc25a9 100644
--- a/net/6lowpan/nhc_ghc_icmpv6.c
+++ b/net/6lowpan/nhc_ghc_icmpv6.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN ICMPv6 compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_udp.c b/net/6lowpan/nhc_ghc_udp.c
index 17beefa52ca8..f47fec601e73 100644
--- a/net/6lowpan/nhc_ghc_udp.c
+++ b/net/6lowpan/nhc_ghc_udp.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN UDP compression according to RFC7400
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_hop.c b/net/6lowpan/nhc_hop.c
index 1eb66be16f19..158fc1906327 100644
--- a/net/6lowpan/nhc_hop.c
+++ b/net/6lowpan/nhc_hop.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Hop-by-Hop Options Header compression according to RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_ipv6.c b/net/6lowpan/nhc_ipv6.c
index 2313d1600af3..08b7589e5b38 100644
--- a/net/6lowpan/nhc_ipv6.c
+++ b/net/6lowpan/nhc_ipv6.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Header compression according to RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_mobility.c b/net/6lowpan/nhc_mobility.c
index 60d3f3886c98..ac8fca689828 100644
--- a/net/6lowpan/nhc_mobility.c
+++ b/net/6lowpan/nhc_mobility.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Mobility Header compression according to RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_routing.c b/net/6lowpan/nhc_routing.c
index c393280f11c4..1c174023de42 100644
--- a/net/6lowpan/nhc_routing.c
+++ b/net/6lowpan/nhc_routing.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 Routing Header compression according to RFC6282
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"
diff --git a/net/6lowpan/nhc_udp.c b/net/6lowpan/nhc_udp.c
index 225d91906dfa..8a3507524f7b 100644
--- a/net/6lowpan/nhc_udp.c
+++ b/net/6lowpan/nhc_udp.c
@@ -1,18 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *	6LoWPAN IPv6 UDP compression according to RFC6282
  *
- *
  *	Authors:
  *	Alexander Aring	<aar@pengutronix.de>
  *
  *	Orignal written by:
  *	Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
  *	Jon Smirl <jonsmirl@gmail.com>
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
  */
 
 #include "nhc.h"