From: Huazhong Tan <tanhuazhong@huawei.com>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<salil.mehta@huawei.com>, <yisen.zhuang@huawei.com>,
<linuxarm@huawei.com>, <sergei.shtylyov@cogentembedded.com>,
Huazhong Tan <tanhuazhong@huawei.com>,
Peng Li <lipeng321@huawei.com>
Subject: [PATCH V2 net-next 10/12] net: hns3: prevent change MTU when resetting
Date: Thu, 4 Apr 2019 16:17:57 +0800 [thread overview]
Message-ID: <1554365879-7932-11-git-send-email-tanhuazhong@huawei.com> (raw)
In-Reply-To: <1554365879-7932-1-git-send-email-tanhuazhong@huawei.com>
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>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 476c23d..0e31f74 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -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;
--
2.7.4
next prev parent reply other threads:[~2019-04-04 8:19 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-04 8:17 [PATCH V2 net-next 00/12] code optimizations & bugfixes for HNS3 driver Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 01/12] net: hns3: check 1000M half for hns3_ethtool_ops.set_link_ksettings Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 02/12] net: hns3: reduce resources use in kdump kernel Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 03/12] net: hns3: modify the VF network port media type acquisition method Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 04/12] net: hns3: return 0 and print warning when hit duplicate MAC Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 05/12] net: hns3: minor optimization for ring_space Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 06/12] net: hns3: minor optimization for datapath Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 07/12] net: hns3: simplify hclgevf_cmd_csq_clean Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 08/12] net: hns3: add protect when handling mac addr list Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 09/12] net: hns3: check resetting status in hns3_get_stats() Huazhong Tan
2019-04-04 8:17 ` Huazhong Tan [this message]
2019-04-04 8:17 ` [PATCH V2 net-next 11/12] net: hns3: modify HNS3_NIC_STATE_INITED flag in hns3_reset_notify_uninit_enet Huazhong Tan
2019-04-04 8:17 ` [PATCH V2 net-next 12/12] net: hns3: split function hnae3_match_n_instantiate() Huazhong Tan
2019-04-04 17:20 ` [PATCH V2 net-next 00/12] code optimizations & bugfixes for HNS3 driver David Miller
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