diff --git a/[refs] b/[refs]
index 6391cb26525b..c44d5f9d88b1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 01ed58abec07633791f03684b937a7e22e00c9bb
+refs/heads/master: b313207286a78abac19f1dd2721292eae598b0f5
diff --git a/trunk/tools/perf/util/include/asm/alternative-asm.h b/trunk/tools/perf/util/include/asm/alternative-asm.h
new file mode 100644
index 000000000000..6789d788d494
--- /dev/null
+++ b/trunk/tools/perf/util/include/asm/alternative-asm.h
@@ -0,0 +1,8 @@
+#ifndef _PERF_ASM_ALTERNATIVE_ASM_H
+#define _PERF_ASM_ALTERNATIVE_ASM_H
+
+/* Just disable it so we can build arch/x86/lib/memcpy_64.S for perf bench: */
+
+#define altinstruction_entry #
+
+#endif