linux-kernel - [PATCH net-next 4/7] net/sonic: Remove redundant netif_start

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Date:   Sun, 16 Feb 2020 08:03:32 +1100
From:   Finn Thain <fthain@...egraphics.com.au>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Chris Zankel <chris@...kel.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 4/7] net/sonic: Remove redundant netif_start_queue()
 call

The transmit queue must be running already otherwise sonic_send_packet()
would not have been called. If the queue was stopped by the interrupt
handler, the interrupt handler will restart it again.

Tested-by: Stan Johnson <userm57@...oo.com>
Signed-off-by: Finn Thain <fthain@...egraphics.com.au>
---
 drivers/net/ethernet/natsemi/sonic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/natsemi/sonic.c b/drivers/net/ethernet/natsemi/sonic.c
index 9ecdd67e1410..1d6de6706875 100644
--- a/drivers/net/ethernet/natsemi/sonic.c
+++ b/drivers/net/ethernet/natsemi/sonic.c
@@ -327,7 +327,7 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
 		netif_dbg(lp, tx_queued, dev, "%s: stopping queue\n", __func__);
 		netif_stop_queue(dev);
 		/* after this packet, wait for ISR to free up some TDAs */
-	} else netif_start_queue(dev);
+	}
 
 	netif_dbg(lp, tx_queued, dev, "%s: issuing Tx command\n", __func__);
 
-- 
2.24.1