[PATCH net-next 06/10] net: stmmac: Do not disable interrupts when cleaning TX

[Jose Abreu]

This is a performance killer and anyways the interrupts are being
disabled by RX NAPI so no need to disable them again.

Signed-off-by: Jose Abreu <joab...@synopsys.com>
Cc: Joao Pinto <jpi...@synopsys.com>
Cc: David S. Miller <da...@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavall...@st.com>
Cc: Alexandre Torgue <alexandre.tor...@st.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c 
b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 1247066c371c..3a6fac22854e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2057,10 +2057,8 @@ static int stmmac_napi_check(struct stmmac_priv *priv, 
u32 chan)
                napi_schedule_irqoff(&ch->rx_napi);
        }
 
-       if ((status & handle_tx) && (chan < priv->plat->tx_queues_to_use)) {
-               stmmac_disable_dma_irq(priv, priv->ioaddr, chan);
+       if ((status & handle_tx) && (chan < priv->plat->tx_queues_to_use))
                napi_schedule_irqoff(&ch->tx_napi);
-       }
 
        return status;
 }
@@ -3560,8 +3558,8 @@ static int stmmac_napi_poll_tx(struct napi_struct *napi, 
int budget)
        work_done = stmmac_tx_clean(priv, DMA_TX_SIZE, chan);
        work_done = min(work_done, budget);
 
-       if (work_done < budget && napi_complete_done(napi, work_done))
-               stmmac_enable_dma_irq(priv, priv->ioaddr, chan);
+       if (work_done < budget)
+               napi_complete_done(napi, work_done);
 
        /* Force transmission restart */
        tx_q = &priv->tx_queue[chan];
-- 
2.7.4