diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index a9d2b2fa4afd..4c6826513901 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -204,10 +204,10 @@ static unsigned int combiner_lookup_irq(int group)
 	return 0;
 }
 
-void __init combiner_init(void __iomem *combiner_base,
-			  struct device_node *np,
-			  unsigned int max_nr,
-			  int irq_base)
+static void __init combiner_init(void __iomem *combiner_base,
+				 struct device_node *np,
+				 unsigned int max_nr,
+				 int irq_base)
 {
 	int i, irq;
 	unsigned int nr_irq;