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-rw-r--r--arch/sh/include/asm/io_generic.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/include/asm/io_generic.h b/arch/sh/include/asm/io_generic.h
index b5f6956f19c8..87ec38f4e532 100644
--- a/arch/sh/include/asm/io_generic.h
+++ b/arch/sh/include/asm/io_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Trivial I/O routine definitions, intentionally meant to be included
* multiple times. Ugly I/O routine concatenation helpers taken from
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