linux-kernel - Re: [PATCH] vmalloc: remove #ifdef in function body

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Date:	Tue, 20 Dec 2011 22:27:09 -0800
From:	Joe Perches <joe@...ches.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] vmalloc: remove #ifdef in function body

On Wed, 2011-12-21 at 15:07 +0900, Minchan Kim wrote:
> On Tue, Dec 20, 2011 at 09:58:19PM -0800, Joe Perches wrote:
> > On Wed, 2011-12-21 at 14:45 +0900, Minchan Kim wrote:
> > > On Tue, Dec 20, 2011 at 09:31:21PM -0800, Joe Perches wrote:
> > > > On Wed, 2011-12-21 at 14:17 +0900, Minchan Kim wrote:
> > > > > We don't like function body which include #ifdef.
> > []
> > > > I don't like this change.
> > > > I think it's perfectly good style to use:
> > > I feel it's no problem as it is because it's very short function now
> > > but it's not style we prefer. 
> > Who is this "we" you refer to?
> > There's nothing suggesting your patch as a preferred style
> > in Documentation/CodingStyle.
> Yes. It doesn't have. 
> But I have thought we have done until now.

But whoever this "we" you're referring to hasn't
actually done so.

> I think we can see them easily.
> 
> #> grep -nRH 'static inline void' ./ | grep {} | wc -l
> 936
> 
> If we consider line which don't include brace in one line, it would be many.

Try:

$ grep -rP --include=*.[ch] \
  '^(static|)\s*(inline|)\s*void\b[^\n;]+\n(?:{\s*|)\#\s*if' * | \
  wc -l
3603

A rough approximation would be to divide by 3.
So there's maybe a 1000 or so of the other style too.

cheers, Joe

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