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-rw-r--r--arch/riscv/include/asm/swab.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/swab.h b/arch/riscv/include/asm/swab.h
index 60a90120b6..0ca746f0f1 100644
--- a/arch/riscv/include/asm/swab.h
+++ b/arch/riscv/include/asm/swab.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
#ifndef _ASM_SWAB_H
#define _ASM_SWAB_H