diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c
index 8a7cf1d0e968..d729b922a750 100644
--- a/drivers/staging/greybus/gpio.c
+++ b/drivers/staging/greybus/gpio.c
@@ -43,7 +43,11 @@ struct gb_gpio_controller {
 };
 #define gpio_chip_to_gb_gpio_controller(chip) \
 	container_of(chip, struct gb_gpio_controller, chip)
-#define irq_data_to_gpio_chip(d) (d->domain->host_data)
+
+static struct gpio_chip *irq_data_to_gpio_chip(struct irq_data *d)
+{
+	return d->domain->host_data;
+}
 
 static int gb_gpio_line_count_operation(struct gb_gpio_controller *ggc)
 {