diff --git a/include/linux/phy.h b/include/linux/phy.h
index dc82a07cb4fdc797ea8e570d4f32194492203363..e00fd9ce3bce51aa5bc7f10184772aa54c1355e9 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -509,7 +509,7 @@ struct phy_driver {
 	struct mdio_driver_common mdiodrv;
 	u32 phy_id;
 	char *name;
-	unsigned int phy_id_mask;
+	u32 phy_id_mask;
 	u32 features;
 	u32 flags;
 	const void *driver_data;