diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm.S b/tools/perf/bench/mem-memcpy-x86-64-asm.S
index e4c2c30143b95133913a2bc3569b2871b79aa75c..5c3cce082cb88c5cab984bdb1ae6944274861ad4 100644
--- a/tools/perf/bench/mem-memcpy-x86-64-asm.S
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm.S
@@ -1,6 +1,11 @@
+
+/* Various wrappers to make the kernel .S file build in user-space: */
+
 #define memcpy MEMCPY /* don't hide glibc's memcpy() */
 #define altinstr_replacement text
 #define globl p2align 4; .globl
+#define _ASM_EXTABLE_FAULT(x, y)
+
 #include "../../../arch/x86/lib/memcpy_64.S"
 /*
  * We need to provide note.GNU-stack section, saying that we want