diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index a2337b7dfc41..44902c63f507 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2007,7 +2007,7 @@ static void rockchip_irq_gc_mask_clr_bit(struct irq_data *d)
 	irq_gc_mask_clr_bit(d);
 }
 
-void rockchip_irq_gc_mask_set_bit(struct irq_data *d)
+static void rockchip_irq_gc_mask_set_bit(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
 	struct rockchip_pin_bank *bank = gc->private;