diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index be9f172185310ac081d6a44f0e061868bc5885d3..7ce98b70cad38bf55be1fd4a15bdaa62761ff159 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2001, 2009
  * Author(s):
diff --git a/drivers/s390/net/fsm.c b/drivers/s390/net/fsm.c
index 8c14c6c3ad3d65fa5f0524d49720c1d3321246f3..f0c7c182b077fc26adc05c91924268b9f77b3a6c 100644
--- a/drivers/s390/net/fsm.c
+++ b/drivers/s390/net/fsm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * A generic FSM based on fsm used in isdn4linux
  *
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index e131a03262ad7bcb3041a9e1e98da574930c727b..36899e94d268ed76dc61b53cc7a83f9bec967101 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Linux for S/390 Lan Channel Station Network Driver
  *
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index b9c7c1e61da296f743f7bbd6f5d30e43d5940117..150053131baf5640f5ecda320f6b237a24b158e2 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IUCV network driver
  *
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 49b9efeba1bda1e2390289b8ba536fa7bad0542c..98a7f84540ab2c51e483b7a4d9368170640fef77 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index b22ed2a57acd94661c97b77966246f0785c77ae2..ae81534de91228910fd877fce0e1e262cc24fddf 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index d2537c09126d676a77eee6d2bbacb54030c2f657..93d7e345d18043e18fe75c2b87bd4ff1bddfce32 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index aadd384316a375f15506cada437a818f4a621239..0f8c12738b067d94184862777b3f2d7e2594a846 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index a851d34c642b5d26866fafdde925eb48ddf61003..93405e0bad3c90df19f96c731b847458a8c4ea86 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IUCV special message driver
  *
diff --git a/drivers/s390/net/smsgiucv_app.c b/drivers/s390/net/smsgiucv_app.c
index 32515a201bbc65c4a0c6e9d48282a188ff16cdda..0a263999f7ae44b181ac7dc786908698c42a9974 100644
--- a/drivers/s390/net/smsgiucv_app.c
+++ b/drivers/s390/net/smsgiucv_app.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Deliver z/VM CP special messages (SMSG) as uevents.
  *