1 files changed, 20 insertions, 0 deletions

diff --git a/include/asm-x86_64/const.h b/include/asm-x86_64/const.h
new file mode 100644
index 000000000000..54fb08f3db9b
--- /dev/null
+++ b/include/asm-x86_64/const.h
@@ -0,0 +1,20 @@
+/* const.h: Macros for dealing with constants.  */
+
+#ifndef _X86_64_CONST_H
+#define _X86_64_CONST_H
+
+/* Some constant macros are used in both assembler and
+ * C code.  Therefore we cannot annotate them always with
+ * 'UL' and other type specificers unilaterally.  We
+ * use the following macros to deal with this.
+ */
+
+#ifdef __ASSEMBLY__
+#define _AC(X,Y)        X
+#else
+#define __AC(X,Y)       (X##Y)
+#define _AC(X,Y)        __AC(X,Y)
+#endif
+
+
+#endif /* !(_X86_64_CONST_H) */