v4.19.13 snapshot.
diff --git a/arch/m68k/include/asm/cacheflush.h b/arch/m68k/include/asm/cacheflush.h
new file mode 100644
index 0000000..29b8e63
--- /dev/null
+++ b/arch/m68k/include/asm/cacheflush.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifdef __uClinux__
+#include <asm/cacheflush_no.h>
+#else
+#include <asm/cacheflush_mm.h>
+#endif