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-rw-r--r--arch/sparc/include/asm/io-unit.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h
index 04a9701e7202..3ce96e8c088f 100644
--- a/arch/sparc/include/asm/io-unit.h
+++ b/arch/sparc/include/asm/io-unit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/* io-unit.h: Definitions for the sun4d IO-UNIT.
*
* Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)