1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index b12974cc1dfe..be9d72950c51 100644
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -59,9 +59,11 @@ struct irq_remap_ops {
                                   unsigned int, int,
                                   struct io_apic_irq_attr *);
 
+#ifdef CONFIG_SMP
         /* Set the CPU affinity of a remapped interrupt */
         int (*set_affinity)(struct irq_data *data, const struct cpumask *mask,
                             bool force);
+#endif
 
         /* Free an IRQ */
         int (*free_irq)(int);