diff --git a/[refs] b/[refs]
index c4ac5d1e5625..7c45f2c253e2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a9d9baa1e819b2f92f9cfa5240f766c535e636a6
+refs/heads/master: ff88a3b2f56ae4f3296ea957ea38f99f8bd0e5a8
diff --git a/trunk/include/linux/memory.h b/trunk/include/linux/memory.h
index 9a424383e6c6..dc4081b6f161 100644
--- a/trunk/include/linux/memory.h
+++ b/trunk/include/linux/memory.h
@@ -85,7 +85,6 @@ struct notifier_block;
 extern int register_memory_notifier(struct notifier_block *nb);
 extern void unregister_memory_notifier(struct notifier_block *nb);
 
-extern struct sysdev_class memory_sysdev_class;
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
 #define hotplug_memory_notifier(fn, pri) {			\