netdev - Re: [Suggestion] net/atm : for sprintf, need check the total write length whether larger than a page.

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Message-ID: <50C53D3C.7090804@asianux.com>
Date:	Mon, 10 Dec 2012 09:39:08 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	chas williams - CONTRACTOR <chas@....nrl.navy.mil>
CC:	David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [Suggestion] net/atm : for sprintf, need check the total write
 length whether larger than a page.

Hello Chas Williams:

  Excuse me:
    I am a reporter (not a reviewer), and not suitable to review another's patch.

  so:
    I suggest you to send your patch (as your willing) to the reviewers, directly.
    and need not cc to me (I am not a reviewer).

  thanks.

gchen.


于 2012年12月07日 09:07, Chen Gang 写道:
> 于 2012年12月06日 22:08, chas williams - CONTRACTOR 写道:
>> On Thu, 06 Dec 2012 09:15:10 +0800
>> Chen Gang <gang.chen@...anux.com> wrote:
>>
>>> 于 2012年12月05日 22:55, chas williams - CONTRACTOR 写道:
>>
>>>> did you mean '\0' instead of '\n'?  scnprintf() considers the trailing
>>>> '\0' when formatting.
>>>
>>>   no, originally, the end is "\n\0".
>>>
>>>   I prefer we still compatible "\n" when the contents are very large.
>>>   if count already == (PAGE_SIZE - 1), we have no chance to append "\n" to the end.
>>>
>>> -		pos += sprintf(pos, "\n");
>>> +		count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
>>
>> i would make the code a bit messy to do this for not much gain.  again,
>> it isnt likely you would run into this in a normal situation.
> 
>   surely.
> 
>   thanks.
> 
>> --
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>>
> 
> 


-- 
Chen Gang

Asianux Corporation
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