netdev - Re: [PATCH] [NET_SCHED] sch_prio.c: remove duplicate call of tc

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Date:	Fri, 31 Aug 2007 11:35:38 +0200 (CEST)
From:	Patrick McHardy <kaber@...sh.net>
To:	Lucas Nussbaum <lucas.nussbaum@...g.fr>
cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] [NET_SCHED] sch_prio.c: remove duplicate call of
 tc_classify()

On Thu, 30 Aug 2007, Lucas Nussbaum wrote:

> When CONFIG_NET_CLS_ACT is enabled, tc_classify() is called twice in
> prio_classify(). This causes "interesting" behaviour: with the setup
> below, packets are duplicated, sent twice to ifb0, and then loop in and
> out of ifb0.
>
> The patch uses the previously calculated return value in the switch,
> which is probably what Patrick had in mind in commit
> bdba91ec70fb5ccbdeb1c7068319adc6ea9e1a7d -- maybe Patrick can
> double-check this?


Thanks for catching this, this is indeed what I had in mind.
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