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Diffstat (limited to 'include/gpio_keys.h')
-rw-r--r--include/gpio_keys.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/gpio_keys.h b/include/gpio_keys.h
index f4a22e16db..f12bed2a0b 100644
--- a/include/gpio_keys.h
+++ b/include/gpio_keys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _GPIO_KEYS_H
#define _GPIO_KEYS_H