1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index dc8177950d05..4591853f6ebc 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -392,8 +392,10 @@ static void xen_irq_init(unsigned irq)
         struct irq_info *info;
         struct irq_desc *desc = irq_to_desc(irq);
 
+#ifdef CONFIG_SMP
         /* By default all event channels notify CPU#0. */
         cpumask_copy(desc->irq_data.affinity, cpumask_of(0));
+#endif
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (info == NULL)