4.9-stable review patch. If anyone has any objections, please let me know.
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From: Yelena Krivosheev yelena@marvell.com
[ Upstream commit 8466baf788ec3e18836bd9c91ba0b1a07af25878 ]
It is incorrect to enable TX/RX queues (call by mvneta_port_up()) for port without link. Indeed MTU change for interface without link causes TX queues to stuck.
Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: Yelena Krivosheev yelena@marvell.com [gregory.clement: adding Fixes tags and rewording commit log] Signed-off-by: Gregory CLEMENT gregory.clement@bootlin.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/marvell/mvneta.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -3117,7 +3117,6 @@ static int mvneta_change_mtu(struct net_
on_each_cpu(mvneta_percpu_enable, pp, true); mvneta_start_dev(pp); - mvneta_port_up(pp);
netdev_update_features(dev);