netdev - Re: [PATCH v2 0/2] ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR

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Message-Id: <20180115.145407.1839943141244511988.davem@davemloft.net>
Date:   Mon, 15 Jan 2018 14:54:07 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     jwestfall@...realistic.net
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH v2 0/2] ipv4: Make neigh lookup keys for
 loopback/point-to-point devices be INADDR_ANY 

From: Jim Westfall <jwestfall@...realistic.net>
Date: Sun, 14 Jan 2018 04:18:49 -0800

> This used to be the previous behavior in older kernels but became broken in
> a263b3093641f (ipv4: Make neigh lookups directly in output packet path)
> and then later removed because it was broken in 0bb4087cbec0 (ipv4: Fix neigh
> lookup keying over loopback/point-to-point devices)
> 
> Not having this results in there being an arp entry for every remote ip
> address that the device talks to.  Given a fairly active device it can
> cause the arp table to become huge and/or having to add/purge large number
> of entires to keep within table size thresholds.
...
> v2: 
>  - fixes coding style issues

Series applied and queued up for -stable, thank you.