netdev - Re: [PATCH net-next 07/17] tcp: remove redundant code from tcp_mark_lost

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Date:	Mon, 02 Mar 2009 03:01:58 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ilpo.jarvinen@...sinki.fi
Cc:	netdev@...r.kernel.org, hannemann@...s.rwth-aachen.de
Subject: Re: [PATCH net-next 07/17] tcp: remove redundant code from
 tcp_mark_lost_retrans

From: "Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
Date: Sat, 28 Feb 2009 16:44:32 +0200

> From: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>
> 
> Arnd Hannemann <hannemann@...s.rwth-aachen.de> noticed and was
> puzzled by the fact that !tcp_is_fack(tp) leads to early return
> near the beginning and the later on tcp_is_fack(tp) was still
> used in an if condition. The later check was a left-over from
> RFC3517 SACK stuff (== !tcp_is_fack(tp) behavior nowadays) as
> there wasn't clear way how to handle this particular check
> cheaply in the spirit of RFC3517 (using only SACK blocks, not
> holes + SACK blocks as with FACK). I sort of left it there as
> a reminder but since it's confusing other people just remove
> it and comment the missing-feature stuff instead.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>

Applied.
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