diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index ec1889ce38a3..df0ba2b2b93a 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -173,11 +173,6 @@ struct w5100_priv {
 	struct work_struct restart_work;
 };
 
-static inline bool is_w5200(struct w5100_priv *priv)
-{
-	return priv->ops->chip_id == W5200;
-}
-
 /************************************************************************
  *
  *  Lowlevel I/O functions