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net: hns3: fix for changing MTU

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when changing MTU, The new MTU must need to be set to netdevice.

Fixes: a8e8b7ff3517 ("net: hns3: Add support to change MTU in HNS3 hardware")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fuyun Liang 2018-01-05 18:18:20 +08:00 committed by David S. Miller
parent 2866ccb2b8
commit 5bad95a1e5
1 changed files with 2 additions and 0 deletions
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drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -1413,6 +1413,8 @@ static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
return ret;
}
netdev->mtu = new_mtu;
/* if the netdev was running earlier, bring it up again */
if (if_running && hns3_nic_net_open(netdev))
ret = -EINVAL;