[PATCH 4.4 157/268] net: mvneta: fix enable of all initialized RXQs

[Greg Kroah-Hartman]

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yelena Krivosheev <yel...@marvell.com>

[ Upstream commit e81b5e01c14add8395dfba7130f8829206bb507d ]

In mvneta_port_up() we enable relevant RX and TX port queues by write
queues bit map to an appropriate register.

q_map must be ZERO in the beginning of this process.

Signed-off-by: Yelena Krivosheev <yel...@marvell.com>
Acked-by: Thomas Petazzoni <thomas.petazz...@bootlin.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/marvell/mvneta.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -818,6 +818,7 @@ static void mvneta_port_up(struct mvneta
        }
        mvreg_write(pp, MVNETA_TXQ_CMD, q_map);
 
+       q_map = 0;
        /* Enable all initialized RXQs. */
        mvreg_write(pp, MVNETA_RXQ_CMD, BIT(rxq_def));
 }