diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
index ffeaea574a40..54463d3efa6a 100644
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -67,7 +67,7 @@ static const struct of_device_id its_device_id[] = {
 	{},
 };
 
-int __init its_fsl_mc_msi_init(void)
+static int __init its_fsl_mc_msi_init(void)
 {
 	struct device_node *np;
 	struct irq_domain *parent;