net: ethernet: renesas: use SPDX identifier for Renesas drivers

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index b81f4fa..1470fc1 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Renesas Ethernet AVB device driver
  *
  * Copyright (C) 2014-2015 Renesas Electronics Corporation
@@ -5,10 +6,6 @@
  * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
  *
  * Based on the SuperH Ethernet driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
  */
 
 #ifndef __RAVB_H__
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index c06f2df..aff5516 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Renesas Ethernet AVB device driver
  *
  * Copyright (C) 2014-2015 Renesas Electronics Corporation
@@ -5,10 +6,6 @@
  * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
  *
  * Based on the SuperH Ethernet driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
  */
 
 #include <linux/cache.h>
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5573199..ad4433d 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  SuperH Ethernet device driver
  *
  *  Copyright (C) 2014 Renesas Electronics Corporation
@@ -5,18 +6,6 @@
  *  Copyright (C) 2008-2014 Renesas Solutions Corp.
  *  Copyright (C) 2013-2017 Cogent Embedded, Inc.
  *  Copyright (C) 2014 Codethink Limited
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms and conditions of the GNU General Public License,
- *  version 2, as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- *  The full GNU General Public License is included in this distribution in
- *  the file called "COPYING".
  */
 
 #include <linux/module.h>
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index f94be99..0c18650 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -1,19 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  SuperH Ethernet device driver
  *
  *  Copyright (C) 2006-2012 Nobuhiro Iwamatsu
  *  Copyright (C) 2008-2012 Renesas Solutions Corp.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms and conditions of the GNU General Public License,
- *  version 2, as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- *  The full GNU General Public License is included in this distribution in
- *  the file called "COPYING".
  */
 
 #ifndef __SH_ETH_H__