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-rw-r--r--drivers/thunderbolt/ctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index d079dbba2c03..37a7f4c735d0 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Thunderbolt Cactus Ridge driver - control channel and configuration commands
*