修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
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@@ -85,7 +85,7 @@
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 /*
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  * NOTE: If this function fails then the priv->dev will remain valid, however
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- * priv can have been freed and must not be touched by caller in the error
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+ * priv will have been freed and must not be touched by caller in the error
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  * case.
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  *
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  * If (ndev->reg_state == NETREG_UNINITIALIZED) then it is up to the caller to
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@@ -97,8 +97,15 @@
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 {
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 	struct net_device *ndev = priv->dev;
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 	int result;
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+	struct rdma_netdev *rn = netdev_priv(ndev);
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 	ASSERT_RTNL();
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+
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+	/*
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+	 * We do not need to touch priv if register_netdevice fails, so just
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+	 * always use this flow.
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+	 */
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+	ndev->priv_destructor = ipoib_intf_free;
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 	/*
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 	 * Racing with unregister of the parent must be prevented by the
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@@ -111,6 +118,8 @@
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 		goto out_early;
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 	}
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+	rn->mtu = priv->mcast_mtu;
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+
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 	priv->parent = ppriv->dev;
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 	priv->pkey = pkey;
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 	priv->child_type = type;
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@@ -119,9 +128,6 @@
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 		result = -ENOTUNIQ;
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 		goto out_early;
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 	}
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-
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-	/* We do not need to touch priv if register_netdevice fails */
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-	ndev->priv_destructor = ipoib_intf_free;
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 	result = register_netdevice(ndev);
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 	if (result) {
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@@ -182,12 +188,14 @@
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 	snprintf(intf_name, sizeof(intf_name), "%s.%04x",
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 		 ppriv->dev->name, pkey);
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-	priv = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
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-	if (!priv) {
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-		result = -ENOMEM;
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+	ndev = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
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+	if (IS_ERR(ndev)) {
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+		result = PTR_ERR(ndev);
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 		goto out;
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 	}
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-	ndev = priv->dev;
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+	priv = ipoib_priv(ndev);
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+
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+	ndev->rtnl_link_ops = ipoib_get_link_ops();
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 	result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD);
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