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Date:   Mon, 13 Mar 2017 12:17:49 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     sd@...asysnail.net
Cc:     netdev@...r.kernel.org, mkubecek@...e.cz,
        nicolas.dichtel@...nd.com, hannes@...essinduktion.org,
        lucien.xin@...il.com
Subject: Re: [PATCH net] ipv6: make ECMP route replacement less greedy

From: Sabrina Dubroca <sd@...asysnail.net>
Date: Mon, 13 Mar 2017 13:28:09 +0100

> Commit 27596472473a ("ipv6: fix ECMP route replacement") introduced a
> loop that removes all siblings of an ECMP route that is being
> replaced. However, this loop doesn't stop when it has replaced
> siblings, and keeps removing other routes with a higher metric.
> We also end up triggering the WARN_ON after the loop, because after
> this nsiblings < 0.
> 
> Instead, stop the loop when we have taken care of all routes with the
> same metric as the route being replaced.
 ...
> Fixes: 27596472473a ("ipv6: fix ECMP route replacement")
> Signed-off-by: Sabrina Dubroca <sd@...asysnail.net>

Applied and queued up for -stable, thanks.

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