diff --git a/[refs] b/[refs]
index f3102f3c98d8..2155fe127bbf 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 04d733bd3588fda8934591fdb0a3d719c5ec8fa0
+refs/heads/master: 177c7715cd94a66d951fcafbacedd278a2d6fcab
diff --git a/trunk/arch/x86/kernel/topology.c b/trunk/arch/x86/kernel/topology.c
index a40051b71d9b..0fcc95a354f7 100644
--- a/trunk/arch/x86/kernel/topology.c
+++ b/trunk/arch/x86/kernel/topology.c
@@ -34,7 +34,7 @@
 static DEFINE_PER_CPU(struct x86_cpu, cpu_devices);
 
 #ifdef CONFIG_HOTPLUG_CPU
-int arch_register_cpu(int num)
+int __ref arch_register_cpu(int num)
 {
 	/*
 	 * CPU0 cannot be offlined due to several