Merge branch 'there-are-some-bugfix-for-hibmcge-driver'

Jijie Shao says:

====================
There are some bugfix for hibmcge driver

v1: https://lore.kernel.org/20250430093127.2400813-1-shaojijie@huawei.com
====================

Link: https://patch.msgid.link/20250517095828.1763126-1-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo

drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c

@@ -61,6 +61,8 @@ static int hbg_reset_prepare(struct hbg_priv *priv, enum hbg_reset_type type)
 		return -EBUSY;
 	}
 
+	netif_device_detach(priv->netdev);
+
 	priv->reset_type = type;
 	set_bit(HBG_NIC_STATE_RESETTING, &priv->state);
 	clear_bit(HBG_NIC_STATE_RESET_FAIL, &priv->state);
@@ -91,6 +93,8 @@ static int hbg_reset_done(struct hbg_priv *priv, enum hbg_reset_type type)
 		return ret;
 	}
 
+	netif_device_attach(priv->netdev);
+
 	dev_info(&priv->pdev->dev, "reset done\n");
 	return ret;
 }
@@ -117,16 +121,13 @@ void hbg_err_reset(struct hbg_priv *priv)
 	if (running)
 		dev_close(priv->netdev);
 
-	hbg_reset(priv);
-
-	/* in hbg_pci_err_detected(), we will detach first,
-	 * so we need to attach before open
-	 */
-	if (!netif_device_present(priv->netdev))
-		netif_device_attach(priv->netdev);
+	if (hbg_reset(priv))
+		goto err_unlock;
 
 	if (running)
 		dev_open(priv->netdev, NULL);
+
+err_unlock:
 	rtnl_unlock();
 }
 
@@ -160,7 +161,6 @@ static pci_ers_result_t hbg_pci_err_slot_reset(struct pci_dev *pdev)
 	pci_save_state(pdev);
 
 	hbg_err_reset(priv);
-	netif_device_attach(netdev);
 	return PCI_ERS_RESULT_RECOVERED;
 }
 

drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c

@@ -317,6 +317,9 @@ static void hbg_update_stats_by_info(struct hbg_priv *priv,
 	const struct hbg_ethtool_stats *stats;
 	u32 i;
 
+	if (test_bit(HBG_NIC_STATE_RESETTING, &priv->state))
+		return;
+
 	for (i = 0; i < info_len; i++) {
 		stats = &info[i];
 		if (!stats->reg)