diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 4478d9f..62ff2d9 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -53,7 +53,7 @@
 	return 0;
 }
 
-struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id)
+static struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id)
 {
 	struct phy_device *dev;