Attachment 308235 Details for Bug 444473 – Posted patch for 4.7

Posted patch for 4.7

netfront-notifier-fake-arp.patch (text/x-patch), 1.53 KB, created by Don Dutile (Red Hat) on 2008-06-03 13:56:49 UTC

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Creator: Don Dutile (Red Hat)

Created: 2008-06-03 13:56:49 UTC

Size: 1.53 KB

patch

obsolete

>--- linux-2.6.9/drivers/xen/netfront/netfront.c.orig	2008-04-28 11:39:45.000000000 -0400
>+++ linux-2.6.9/drivers/xen/netfront/netfront.c	2008-04-28 11:50:11.000000000 -0400
>@@ -2034,6 +2034,23 @@ inetdev_notify(struct notifier_block *th
> 	return NOTIFY_DONE;
> }
> 
>+/*
>+ * We also send a fake ARP if the link gets carrier.
>+ */
>+static int
>+netdev_notify(struct notifier_block *this, unsigned long event, void *ptr)
>+{
>+	struct in_ifaddr  *ifa = (struct in_ifaddr *)ptr;
>+	struct net_device *dev = ifa->ifa_dev->dev;
>+
>+	/* Carrier up event and is it one of our devices? */
>+	if (event == NETDEV_CHANGE && netif_carrier_ok(dev) &&
>+	    dev->open == network_open)
>+		(void)send_fake_arp(dev);
>+
>+	return NOTIFY_DONE;
>+}
>+
> 
> static void netif_disconnect_backend(struct netfront_info *info)
> {
>@@ -2098,6 +2115,10 @@ static struct notifier_block notifier_in
> 	.priority       = 0
> };
> 
>+static struct notifier_block notifier_netdev = {
>+	.notifier_call  = netdev_notify,
>+};
>+
> static int __init netif_init(void)
> {
> 	if (!is_running_on_xen())
>@@ -2119,6 +2140,7 @@ static int __init netif_init(void)
> 	IPRINTK("Initialising virtual ethernet driver.\n");
> 
> 	(void)register_inetaddr_notifier(&notifier_inetdev);
>+	(void)register_inetaddr_notifier(&notifier_netdev);
> 
> 	return xenbus_register_frontend(&netfront);
> }
>@@ -2132,6 +2154,7 @@ static void __exit netif_exit(void)
> 	if (is_initial_xendomain())
> 		return;
> 
>+	unregister_inetaddr_notifier(&notifier_netdev);
> 	unregister_inetaddr_notifier(&notifier_inetdev);
> 
> 	return xenbus_unregister_driver(&netfront);

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Attachments on bug 444473: 308235