[PATCH net-next 09/10] net: stmmac: Only disable interrupts if NAPI is scheduled

[Jose Abreu]

Only disable the interrupts if RX NAPI gets to be scheduled. Also,
schedule the TX NAPI only when the interrupts are disabled.

Signed-off-by: Jose Abreu <joabreu@xxxxxxxxxxxx>
Cc: Joao Pinto <jpinto@xxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
Cc: Alexandre Torgue <alexandre.torgue@xxxxxx>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 0893af8b432d..bc949665c529 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2049,12 +2049,12 @@ static int stmmac_napi_check(struct stmmac_priv *priv, u32 chan)
 						 &priv->xstats, chan);
 	struct stmmac_channel *ch = &priv->channel[chan];
 
-	if (status)
-		status |= handle_rx | handle_tx;
-
 	if ((status & handle_rx) && (chan < priv->plat->rx_queues_to_use)) {
-		stmmac_disable_dma_irq(priv, priv->ioaddr, chan);
-		napi_schedule_irqoff(&ch->rx_napi);
+		if (napi_schedule_prep(&ch->rx_napi)) {
+			stmmac_disable_dma_irq(priv, priv->ioaddr, chan);
+			__napi_schedule_irqoff(&ch->rx_napi);
+			status |= handle_tx;
+		}
 	}
 
 	if ((status & handle_tx) && (chan < priv->plat->tx_queues_to_use))
-- 
2.7.4