A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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net: hns3: prevent change MTU when resetting

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When resetting, the changing of MTU is not allowed, so this patch
adds checking reset status in hns3_nic_change_mtu() to do that.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Huazhong Tan 2019-04-04 16:17:57 +08:00 • committed by David S. Miller
commit 6ff7ed8049
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -1591,6 +1591,9 @@ static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
struct hnae3_handle *h = hns3_get_handle(netdev);
int ret;
if (hns3_nic_resetting(netdev))
return -EBUSY;
if (!h->ae_algo->ops->set_mtu)
return -EOPNOTSUPP;