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-rw-r--r--arch/s390/mm/cmm.c1
-rw-r--r--arch/s390/mm/gmap.c1
-rw-r--r--arch/s390/mm/mmap.c1
-rw-r--r--arch/s390/mm/pgtable.c1
4 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index 2dbdcd85b68f..3596ef91cf68 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Collaborative memory management interface.
*
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index b2c140193b0a..05d459b638f5 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* KVM guest address space mapping code
*
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 5bea139517a2..5ec9a8c2b768 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* flexible mmap layout support
*
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index ae677f814bc0..4f2b65d01a70 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright IBM Corp. 2007, 2011
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>