netdev - Re: [PATCH net v2] gro: Make GRO aware of lightweight tunnels.

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Message-ID: <1453342202.1223.346.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 20 Jan 2016 18:10:02 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jesse Gross <jesse@...nel.org>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Thomas Graf <tgraf@...g.ch>, John <john.phillips5@....com>
Subject: Re: [PATCH net v2] gro: Make GRO aware of lightweight tunnels.

On Wed, 2016-01-20 at 17:59 -0800, Jesse Gross wrote:
> GRO is currently not aware of tunnel metadata generated by lightweight
> tunnels and stored in the dst. This leads to two possible problems:
>  * Incorrectly merging two frames that have different metadata.
>  * Leaking of allocated metadata from merged frames.
> 
> This avoids those problems by comparing the tunnel information before
> merging, similar to how we handle other metadata (such as vlan tags),
> and releasing any state when we are done.
> 
> Reported-by: John <john.phillips5@....com>
> Fixes: 2e15ea39 ("ip_gre: Add support to collect tunnel metadata.")
> Signed-off-by: Jesse Gross <jesse@...nel.org>
> ---

Acked-by: Eric Dumazet <edumazet@...gle.com>