1 files changed, 2 insertions, 0 deletions

diff --git a/mm/swap.c b/mm/swap.c
index 017e72ca9bbb..2ed7be39795e 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -514,5 +514,7 @@ void __init swap_setup(void)
          * Right now other parts of the system means that we
          * _really_ don't want to cluster much more
          */
+#ifdef CONFIG_HOTPLUG_CPU
         hotcpu_notifier(cpu_swap_callback, 0);
+#endif
 }