License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-block.git] / include / acpi / button.h
index 1cad8b2d460c3eabf9a7cf833fa6ece8785fe6e7..3a2b8535dec6c4eaba511e1a445d3c0f187fddec 100644 (file)
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ACPI_BUTTON_H
 #define ACPI_BUTTON_H