diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index e576e1a..c039149 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	drivers/pci/setup-res.c
  *