| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.15 071/168] net: hns3: fix for changing MTU | Date | Wed, 11 Apr 2018 00:23:33 +0200 |
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4.15-stable review patch. If anyone has any objections, please let me know.
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From: Fuyun Liang <liangfuyun1@huawei.com>
[ Upstream commit 5bad95a1e55f4d5bb41e130db859d57eaf1b1549 ]
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> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c @@ -1324,6 +1324,8 @@ static int hns3_nic_change_mtu(struct ne 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;
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