netdev - Re: [PATCH 1/1 net-next] fec: net: put tx to napi poll function to fix dead lock

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Date:	Fri, 1 Mar 2013 11:05:57 +0800
From:	Frank Li <lznuaa@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Frank.Li@...escale.com, shawn.guo@...aro.org, B38611@...escale.com,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	s.hauer@...gutronix.de
Subject: Re: [PATCH 1/1 net-next] fec: net: put tx to napi poll function to
 fix dead lock

2013/3/1 David Miller <davem@...emloft.net>:
> From: Frank Li <Frank.Li@...escale.com>
> Date: Thu, 28 Feb 2013 11:44:20 +0800
>
>> +     int tx_pkts = fec_enet_tx(ndev);
>> +
>> +     if (tx_pkts)
>> +             return budget;
>
> This isn't right, you don't want to finish the NAPI poll because
> TX work was done.
>
> Ignore the TX work for poll completion purposes, see
> drivers/net/ethernet/broadcom/tg3.c:tg3_poll_work() for
> example.

I read tg3.c code. If I understand correct,
just need remove below line

    if (tx_pkts)
             return budget;

Is it ture?
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