diff --git a/[refs] b/[refs]
index 9fd1f67e029c..40ec32e51f52 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bc7fe1d977734efe6059d6d537b439135ad4a34c
+refs/heads/master: ffc78767f2ac5b8007aeb366e748c8dd8b8bc3a3
diff --git a/trunk/arch/x86/xen/multicalls.c b/trunk/arch/x86/xen/multicalls.c
index 7074c7ebfff2..3001162c4bce 100644
--- a/trunk/arch/x86/xen/multicalls.c
+++ b/trunk/arch/x86/xen/multicalls.c
@@ -30,7 +30,7 @@
 
 #define MC_BATCH	32
 
-#define MC_DEBUG	1
+#define MC_DEBUG	0
 
 #define MC_ARGS		(MC_BATCH * 16)
 
@@ -132,7 +132,7 @@ struct multicall_space __xen_mc_entry(size_t args)
 	}
 
 	ret.mc = &b->entries[b->mcidx];
-#ifdef MC_DEBUG
+#if MC_DEBUG
 	b->caller[b->mcidx] = __builtin_return_address(0);
 #endif
 	b->mcidx++;