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

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Message-Id: <20061101172241.84439229.randy.dunlap@oracle.com>
Date:	Wed, 1 Nov 2006 17:22:41 -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

On Thu, 2 Nov 2006 02:23:42 +0100 Jesper Juhl wrote:

> On Thursday 02 November 2006 02:12, Randy Dunlap wrote:
> > 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.
> > > 
> [snip]
> > > +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.
> > 
> Ok, how's this :
> 
> Signed-off-by: Jesper Juhl <jesper.juhl@...il.com>
> ---
> 
> diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
> index 29c1896..4f6b2d5 100644
> --- a/Documentation/CodingStyle
> +++ b/Documentation/CodingStyle
> @@ -566,6 +566,21 @@ 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 preferred that labels be placed at column 1.
> +
> +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.
> +
> +
>  
>  		Appendix I: References

Yep, OK with me.  (Ack)

---
~Randy
-
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