v4.19.13 snapshot.
diff --git a/arch/arm/include/asm/glue.h b/arch/arm/include/asm/glue.h
new file mode 100644
index 0000000..fbf71d7
--- /dev/null
+++ b/arch/arm/include/asm/glue.h
@@ -0,0 +1,25 @@
+/*
+ * arch/arm/include/asm/glue.h
+ *
+ * Copyright (C) 1997-1999 Russell King
+ * Copyright (C) 2000-2002 Deep Blue Solutions Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file provides the glue to stick the processor-specific bits
+ * into the kernel in an efficient manner. The idea is to use branches
+ * when we're only targeting one class of TLB, or indirect calls
+ * when we're targeting multiple classes of TLBs.
+ */
+#ifdef __KERNEL__
+
+#ifdef __STDC__
+#define ____glue(name,fn) name##fn
+#else
+#define ____glue(name,fn) name/**/fn
+#endif
+#define __glue(name,fn) ____glue(name,fn)
+
+#endif