diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
new file mode 100644
index 0000000..853b087
--- /dev/null
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */