net: stmmac: Use netif_tx_napi_add() for TX polling function

This variant of netif_napi_add() should be used from drivers
using NAPI to exclusively poll a TX queue.

Signed-off-by: Frode Isaksen <fisaksen@baylibre.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

@@ -4320,8 +4320,9 @@ int stmmac_dvr_probe(struct device *device,
 				       NAPI_POLL_WEIGHT);
 		}
 		if (queue < priv->plat->tx_queues_to_use) {
-			netif_napi_add(ndev, &ch->tx_napi, stmmac_napi_poll_tx,
-				       NAPI_POLL_WEIGHT);
+			netif_tx_napi_add(ndev, &ch->tx_napi,
+					  stmmac_napi_poll_tx,
+					  NAPI_POLL_WEIGHT);
 		}
 	}