netdev - Re: [PATCH net] net: ipv6: Compare lwstate in detecting duplicate nexthops

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Message-Id: <20170706.104910.1712476410202706181.davem@davemloft.net>
Date:   Thu, 06 Jul 2017 10:49:10 +0100 (WEST)
From:   David Miller <davem@...emloft.net>
To:     dsahern@...il.com
Cc:     netdev@...r.kernel.org, buytenh@...tstofly.org,
        roopa@...ulusnetworks.com, rshearma@...cade.com
Subject: Re: [PATCH net] net: ipv6: Compare lwstate in detecting duplicate
 nexthops

From: David Ahern <dsahern@...il.com>
Date: Wed,  5 Jul 2017 14:41:46 -0600

> Lennert reported a failure to add different mpls encaps in a multipath
> route:
> 
>   $ ip -6 route add 1234::/16 \
>         nexthop encap mpls 10 via fe80::1 dev ens3 \
>         nexthop encap mpls 20 via fe80::1 dev ens3
>   RTNETLINK answers: File exists
> 
> The problem is that the duplicate nexthop detection does not compare
> lwtunnel configuration. Add it.
> 
> Fixes: 19e42e451506("ipv6: support for fib route lwtunnel encap attributes")
> Signed-off-by: David Ahern <dsahern@...il.com>

Applied and queued up for -stable, thanks.