netdev - Re: [PATCH 2/4] ipgre: follow state of lower device

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Message-ID: <b3a68b7e-d67a-4a62-add2-3efd3f001bbf@tahiti.vyatta.com>
Date:	Sat, 14 Apr 2012 19:56:16 -0700 (PDT)
From:	Stephen Hemminger <stephen.hemminger@...tta.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 2/4] ipgre: follow state of lower device



----- Original Message -----
> From: Stephen Hemminger <shemminger@...tta.com>
> Date: Thu, 12 Apr 2012 09:31:17 -0700
> 
> > GRE tunnels like other layered devices should propogate
> > carrier and RFC2863 state from lower device to tunnel.
> > 
> > Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
> 
> Like others I don't like the ugly hash traversal.
> 
> A small hash on ifindex, iflink, or whatever ought to be easy and
> make
> the code look much nicer.
> 
> Longer term project is that a lot of this tunneling code can be
> commonized at some point.

yeah. also want to replace open coded rcu with rcu hlist.

other tunnels that are needed are gretap over ipv6, and vxvlan.

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