From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Wed, 27 May 2020 08:59:14 +0800
Subject: net: hns3: add a resetting check in
 hclgevf_init_nic_client_instance()
Patch-mainline: v5.8-rc1
Git-commit: 4cd5beaa89a95b331e5586d55469f5569faa18f6
References: jsc#SLE-14777

To prevent from initializing VF NIC client in reset handling state,
this patch adds resetting check in hclgevf_init_nic_client_instance().

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2713,6 +2713,7 @@ static int hclgevf_init_nic_client_insta
 					    struct hnae3_client *client)
 {
 	struct hclgevf_dev *hdev = ae_dev->priv;
+	int rst_cnt = hdev->rst_stats.rst_cnt;
 	int ret;
 
 	ret = client->ops->init_instance(&hdev->nic);
@@ -2720,6 +2721,14 @@ static int hclgevf_init_nic_client_insta
 		return ret;
 
 	set_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state);
+	if (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state) ||
+	    rst_cnt != hdev->rst_stats.rst_cnt) {
+		clear_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state);
+
+		client->ops->uninit_instance(&hdev->nic, 0);
+		return -EBUSY;
+	}
+
 	hnae3_set_client_init_flag(client, ae_dev, 1);
 
 	if (netif_msg_drv(&hdev->nic))