diff --git a/[refs] b/[refs]
index 9345fcf90552..bc7f075e0017 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c78277288e3d561d55fb48bc0fe8d6e2cf4d0880
+refs/heads/master: 15ce60056b24a65b65e28de973a9fd8ac0750a2f
diff --git a/trunk/arch/x86/xen/mmu.c b/trunk/arch/x86/xen/mmu.c
index eef3b5c6e2fe..17f374eb1faa 100644
--- a/trunk/arch/x86/xen/mmu.c
+++ b/trunk/arch/x86/xen/mmu.c
@@ -136,6 +136,7 @@ unsigned long get_phys_to_machine(unsigned long pfn)
 	idx = p2m_index(pfn);
 	return p2m_top[topidx][idx];
 }
+EXPORT_SYMBOL_GPL(get_phys_to_machine);
 
 static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
 {