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-rw-r--r--include/linux/usb/serial.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index e2f0ab07eea5..106551a5616e 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* USB Serial Converter stuff
*