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-rw-r--r--arch/s390/pci/pci_mmio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index b1bb2b72302c..7d42a8794f10 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Access to PCI I/O memory from user space programs.
*