diff --git a/drivers/irqchip/irq-apple-aic.c b/drivers/irqchip/irq-apple-aic.c
index 3759dc36cc8f73f664e10e8ed6c8fd2ceca1754f..2543ef65825b903438f16331de4c92f864fe125e 100644
--- a/drivers/irqchip/irq-apple-aic.c
+++ b/drivers/irqchip/irq-apple-aic.c
@@ -707,7 +707,7 @@ static const struct irq_domain_ops aic_ipi_domain_ops = {
 	.free = aic_ipi_free,
 };
 
-static int aic_init_smp(struct aic_irq_chip *irqc, struct device_node *node)
+static int __init aic_init_smp(struct aic_irq_chip *irqc, struct device_node *node)
 {
 	struct irq_domain *ipi_domain;
 	int base_ipi;