From: Edwin Peer <[email protected]>

A TX queue can potentially immediately timeout after it is stopped
and the last TX timestamp on that queue was more than 5 seconds ago with
carrier still up.  Prevent these intermittent false TX timeouts
by bringing down carrier first before calling netif_tx_disable().

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Edwin Peer <[email protected]>
Signed-off-by: Michael Chan <[email protected]>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index d10e4f85dd11..1c96b7ba24f2 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8856,9 +8856,10 @@ void bnxt_tx_disable(struct bnxt *bp)
                        txr->dev_state = BNXT_DEV_STATE_CLOSING;
                }
        }
+       /* Drop carrier first to prevent TX timeout */
+       netif_carrier_off(bp->dev);
        /* Stop all TX queues */
        netif_tx_disable(bp->dev);
-       netif_carrier_off(bp->dev);
 }
 
 void bnxt_tx_enable(struct bnxt *bp)
-- 
2.18.1

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