diff --git a/net/arp.c b/net/arp.c
index 4c79e09..990b771 100644
--- a/net/arp.c
+++ b/net/arp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>
diff --git a/net/arp.h b/net/arp.h
index a288d61..afb8695 100644
--- a/net/arp.h
+++ b/net/arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef __ARP_H__
diff --git a/net/cdp.c b/net/cdp.c
index f9ccf53..fac0204 100644
--- a/net/cdp.c
+++ b/net/cdp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #include <common.h>
diff --git a/net/cdp.h b/net/cdp.h
index 83475c9..16ccbf4 100644
--- a/net/cdp.h
+++ b/net/cdp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #if defined(CONFIG_CMD_CDP)
diff --git a/net/net.c b/net/net.c
index d222c1f..7f85211 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 /*
diff --git a/net/ping.c b/net/ping.c
index 9508cf1..5464f2f 100644
--- a/net/ping.c
+++ b/net/ping.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #include "ping.h"
diff --git a/net/ping.h b/net/ping.h
index b672b95..7b6f4e5 100644
--- a/net/ping.h
+++ b/net/ping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Copied from Linux Monitor (LiMon) - Networking.
  *
@@ -6,7 +7,6 @@
  *	Copyright 2000 Roland Borde
  *	Copyright 2000 Paolo Scaffardi
  *	Copyright 2000-2002 Wolfgang Denk, wd@denx.de
- *	SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef __PING_H__