linux-kernel - Re: [KJ][PATCH] Correct misc_register return code handling in several drivers

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Date:	Wed, 01 Nov 2006 17:12:26 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Jesper Juhl <jesper.juhl@...il.com>
CC:	Andrew Morton <akpm@...l.org>, Neil Horman <nhorman@...driver.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	kernel-janitors@...ts.osdl.org, kjhall@...ibm.com,
	maxk@...lcomm.com, linux-kernel@...r.kernel.org
Subject: Re: [KJ][PATCH] Correct misc_register return code handling in several
 drivers

Jesper Juhl wrote:
> On Thursday 02 November 2006 01:27, Andrew Morton wrote:
>> On Wed, 1 Nov 2006 16:11:55 -0800
>> Randy Dunlap <randy.dunlap@...cle.com> wrote:
>>
>>>> Hmm, I guess that should be defined once and for all in
>>>> Documentation/CodingStyle
>>> I have some other CodingStyle changes to submit, but feel free
>>> to write this one up.
>> Starting labels in column 2 gives me the creeps, personally.  But there's a
>> decent justification for it.
>>
>>> However, I didn't know that we had a known style for this, other
>>> than "not indented so far that it's hidden".
>>>
>>> If a label in column 0 [0-based :] confuses patch, then that's
>>> a reason, I suppose.  I wasn't aware of that one...
>>> In a case like that, we usually say "fix the tool then."
>> The problem is that `diff -p' screws up and displays the label: in the
>> place where it should be displaying the function name.
>>
>> Of course, lots of people forget the -p anyway...  Maybe we can fix those
>> tools ;)
>>
> Until the tools get fixed, how about applying this patch ?
> 
> 
> Add CodngStyle info on labels.
> 
> Signed-off-by: Jesper Juhl <jesper.juhl@...il.com>
> ---
> 
> diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
> index 29c1896..f8a3abb 100644
> --- a/Documentation/CodingStyle
> +++ b/Documentation/CodingStyle
> @@ -566,6 +566,18 @@ result.  Typical examples would be funct
>  NULL or the ERR_PTR mechanism to report failure.
>  
>  
> +		Chapter 17: Labels
> +
> +Label names should be lowercase.
> +
> +Label names should start with a letter [a-z].
> +
> +Labels should not be placed at column 0. Doing so confuses some tools, most
> +notably 'diff' and 'patch'. Instead place labels at column 1 (indented 1
> +space). In some cases it's OK to indent labels one or more tabs, but
> +generally it is prefered that labels be placed at column 1.
		~~~~~~~~~~~~
		preferred

I would also say something like this:

Labels should stand out -- be easily visible.  They should not be
indented so much that they are hidden or obscured by the surrounding
source code.



-- 
~Randy
-
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