License cleanup: add SPDX GPL-2.0 license identifier to files with no license

[linux-block.git] / drivers / mailbox / Makefile

diff --git a/drivers/mailbox/Makefile b/drivers/mailbox/Makefile
index d54e41206e175e1f6da697fa8d4415e8fd1cf75d..4896f8dcae95c32cecb12e74a02cc6820db89ee9 100644 (file)
--- a/drivers/mailbox/Makefile
+++ b/drivers/mailbox/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Generic MAILBOX API
 
 obj-$(CONFIG_MAILBOX)          += mailbox.o