[PATCH 4.9 29/48] net: amd-xgbe: ensure to reset the tx_timer_active flag

Greg Kroah-Hartman
2022-02-07T11:13:58Z

From: Raju Rangoju <Raju.Rangoju@amd.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@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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;
}
}