linux-kernel - [PATCH 4.9 29/48] net: amd-xgbe: ensure to reset the tx_timer

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Message-Id: <20220207103753.293439483@linuxfoundation.org>
Date:   Mon,  7 Feb 2022 12:06:02 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sudheesh Mavila <sudheesh.mavila@....com>,
        Raju Rangoju <Raju.Rangoju@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 4.9 29/48] net: amd-xgbe: ensure to reset the tx_timer_active flag

From: Raju Rangoju <Raju.Rangoju@....com>

commit 7674b7b559b683478c3832527c59bceb169e701d upstream.

Ensure to reset the tx_timer_active flag in xgbe_stop(),
otherwise a port restart may result in tx timeout due to
uncleared flag.

Fixes: c635eaacbf77 ("amd-xgbe: Remove Tx coalescing")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@....com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@....com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@....com>
Acked-by: Tom Lendacky <thomas.lendacky@....com>
Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -494,7 +494,9 @@ static void xgbe_stop_timers(struct xgbe
 		if (!channel->tx_ring)
 			break;
 
+		/* Deactivate the Tx timer */
 		del_timer_sync(&channel->tx_timer);
+		channel->tx_timer_active = 0;
 	}
 }