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net: mvneta: fix mtu change on port without link 

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: c5aff18204 ("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>
hifive-unleashed-5.1
Yelena Krivosheev 2018-07-18 18:10:51 +02:00 committed by David S. Miller
parent 7a86f05faf
commit 8466baf788
1 changed files with 0 additions and 1 deletions
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drivers/net/ethernet/marvell/mvneta.c
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@ -3196,7 +3196,6 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu)
on_each_cpu(mvneta_percpu_enable, pp, true);
mvneta_start_dev(pp);
mvneta_port_up(pp);
netdev_update_features(dev);