diff --git a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
index a1d547b6aa12..f624ae27eabe 100644
--- a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
+++ b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c
@@ -1549,8 +1549,8 @@ free_and_exit:
 	return rc;
 }
 
-void switchtec_ntb_remove(struct device *dev,
-			  struct class_interface *class_intf)
+static void switchtec_ntb_remove(struct device *dev,
+				 struct class_interface *class_intf)
 {
 	struct switchtec_dev *stdev = to_stdev(dev);
 	struct switchtec_ntb *sndev = stdev->sndev;