linux-kernel - Re: [PATCH] kstrtox: drop kstrtol()/kstrtoul() when possible

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Date:	Thu, 19 May 2011 23:54:49 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-kernel@...r.kernel.org, arnd@...db.de, mmarek@...e.cz,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kstrtox: drop kstrtol()/kstrtoul() when possible

On Fri, 20 May 2011 09:48:27 +0300 Alexey Dobriyan <adobriyan@...il.com> wrote:

> On Fri, May 20, 2011 at 08:20:42AM +0200, Geert Uytterhoeven wrote:
> > On Fri, May 20, 2011 at 08:15, Alexey Dobriyan <adobriyan@...il.com> wrote:
> > > If "long" and "long long" types are identical at runtime,
> > > kstrtol() can be aliased to kstrtoll().
> > >
> > > Unfortunately, one can't write
> > >
> > > __ __ __ __#if sizeof(long) == sizeof(long long) ...
> > 
> > One can write #ifdef CONFIG_64BIT instead.
> 
> And alignment will match, on any arch, now and in future?
> I don't think so.

Don't worry about it.

z:/usr/src/linux-2.6.39> grep -r "#[    ]*if.*CONFIG_64BIT" . | wc -l
547

So much other stuff will break that kstrtofoo is a drop in the bucket.
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