diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index 16ec7d4d81ee0..a3905e58d1b39 100644
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -1642,8 +1642,8 @@ static void sirfsoc_gpio_set_value(struct gpio_chip *chip, unsigned offset,
 	spin_unlock_irqrestore(&bank->lock, flags);
 }
 
-int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
-	irq_hw_number_t hwirq)
+static int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+				irq_hw_number_t hwirq)
 {
 	struct sirfsoc_gpio_bank *bank = d->host_data;