netdev - Re: [PATCH] gre: propagate state of link back go to tunnel

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Message-Id: <20120321.221839.274547591318904841.davem@davemloft.net>
Date:	Wed, 21 Mar 2012 22:18:39 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...tta.com
Cc:	herbert@...dor.hengli.com.au, netdev@...r.kernel.org
Subject: Re: [PATCH] gre: propagate state of link back go to tunnel

From: Stephen Hemminger <shemminger@...tta.com>
Date: Mon, 19 Mar 2012 16:58:43 -0700

> GRE tunnels like other layered devices should propagate
> carrier and RFC2863 state from lower device to tunnel.
> Based on similar code in vlan device driver.
> By using operstate it is possible for user mode to create tunnel
> and use stepped outlined in Documentation/networking/operstate.txt
> to control carrier.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
> 
> ---
> Not urgent, can wait if the release window is already over the
> queue limit

Yeah, please resubmit this once net-next opens back up.

And meanwhile you can duplicate this fix to ipip, sit, ip6_tunnel etc.
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