From 4773f9bdb476501df565b610adc0edf1932f2c6e Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 12 Aug 2019 20:47:40 +0200
Subject: [PATCH] r8169: fix sporadic transmit timeout issue
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Holger reported sporadic transmit timeouts and it turned out that one
path misses ringing the doorbell. Fix was suggested by Eric.

Fixes: ef14358546b1 ("r8169: make use of xmit_more")
Suggested-by: Eric Dumazet <edumazet@google.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/r8169_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index a4233ace21ca..34d072f0c895 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5681,6 +5681,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 		 */
 		smp_wmb();
 		netif_stop_queue(dev);
+		door_bell = true;
 	}
 
 	if (door_bell)
-- 
2.30.2