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Date:	Mon, 27 Jan 2014 20:57:37 +0800
From:	Wang Weidong <weidong1991.wang@...il.com>
To:	Ben Hutchings <ben@...adent.org.uk>,
	Wang Weidong <wangweidong1@...wei.com>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] 8139cp: remove a won't occurred BUG_ON

From: Wang Weidong <wangweidong1@...wei.com>

On 2014/1/27 19:54, Ben Hutchings wrote:
> On Mon, 2014-01-27 at 09:14 +0800, Wang Weidong wrote:
>> On 2014/1/27 7:23, Ben Hutchings wrote:
>>> On Sun, 2014-01-26 at 16:33 +0800, Wang Weidong wrote:
>>>> when variable i go to the BUG_ON the value is equal to the CP_NUM_STATS,
>>>> so the BUG_ON won't occur, so remove it
>>>
>>> We hope that every BUG_ON() does not occur, but that doesn't mean they
>>> should be removed.  This check is meant to catch mistakes when adding
>>> new statistics.
>>>
>>> Ben.
>>>
>> Hi, Ben.
>>
>> Yeah, but I think If someone would add new statistics, he should take into account
>> it instead the BUG_ON helper.
>>
>> And that, I found some other drivers' get_ethtool_stats no have BUG_ON. Should we
>> add the BUG_ON into them?
> [...]
>
> The important thing is that the get_stats, get_sset_count and
> get_strings operations are consistent.  Depending on how they are
> implemented, a BUG_ON or BUILD_BUG_ON may be useful to check that.  I
> don't think there's any universal best practice.
>
> Ben.
>
Ok, Got it.
Thanks for your answers.

Regards,
Wang

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