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 --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c index fad480e323dd..d1e4dcec5db2 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c @@ -1313,6 +1313,8 @@ 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;