linux-kernel - Re: [09/38] xen: netfront: explicitly generate arp

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Message-ID: <1281445647.24292.3897.camel@zakaz.uk.xensource.com>
Date:	Tue, 10 Aug 2010 14:07:27 +0100
From:	Ian Campbell <Ian.Campbell@...citrix.com>
To:	Greg KH <gregkh@...e.de>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...nel.org" <stable@...nel.org>,
	"stable-review@...nel.org" <stable-review@...nel.org>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"alan@...rguk.ukuu.org.uk" <alan@...rguk.ukuu.org.uk>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	"David S. Miller" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>
Subject: Re: [09/38] xen: netfront: explicitly generate arp_notify event
 after migration.

Hi Greg,

Looks like I forgot to request this for 2.6.32 too, could you queue it
up there as well?

It depends on the previous patch in this series (arp_notify: allow
drivers to explicitly request a notification event.).

Thanks,
Ian.

On Fri, 2010-08-06 at 19:30 +0100, Greg KH wrote:
> 2.6.35-stable review patch.  If anyone has any objections, please let us know.
> 
> ------------------
> 
> From: Ian Campbell <Ian.Campbell@...rix.com>
> 
> commit 592970675c9522bde588b945388c7995c8b51328 upstream.
> 
> Use newly introduced netif_notify_peers() method to ensure a gratuitous ARP is
> generated after a migration.
> 
> Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
> Cc: Stephen Hemminger <shemminger@...ux-foundation.org>
> Cc: Jeremy Fitzhardinge <jeremy@...p.org>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: netdev@...r.kernel.org
> Cc: xen-devel@...ts.xensource.com
> Signed-off-by: David S. Miller <davem@...emloft.net>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> 
> ---
>  drivers/net/xen-netfront.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- a/drivers/net/xen-netfront.c
> +++ b/drivers/net/xen-netfront.c
> @@ -1621,6 +1621,7 @@ static void backend_changed(struct xenbu
>  		if (xennet_connect(netdev) != 0)
>  			break;
>  		xenbus_switch_state(dev, XenbusStateConnected);
> +		netif_notify_peers(netdev);
>  		break;
>  
>  	case XenbusStateClosing:
> 
> 


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