linux-kernel - Re: [PATCH v2] hwmon (coretemp): Fix build breakage if SMP is undefined

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Message-ID: <20100927131510.GB2277@ericsson.com>
Date:	Mon, 27 Sep 2010 06:15:10 -0700
From:	Guenter Roeck <guenter.roeck@...csson.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Jean Delvare <khali@...ux-fr.org>
Subject: Re: [PATCH v2] hwmon (coretemp): Fix build breakage if SMP is
 undefined

On Mon, Sep 27, 2010 at 08:59:46AM -0400, Ingo Molnar wrote:
> 
> * Guenter Roeck <guenter.roeck@...csson.com> wrote:
> 
> > +#ifdef CONFIG_SMP
> > +#endif
> > +#ifdef CONFIG_SMP
> > +#endif
> 
> Hm, this tickles my uglo-meter. Is there no cleaner way, preferably one 
> that doesnt involve preprocessor directives?
> 
Mine too, but not at 6am in the morning (actually 5am when I wrote it),
and right now I thought it more important to fix the kernel breakage.

I'll think about it and see if I can find something better. But I would
still prefer to have this one applied and submit a cleaner solution later on
(if I find one). Preferrably, as you suggested, without any CONFIG_SMP
declarations.

Fwiw, there are several similar "#ifdef CONFIG_SMP" in this driver already,
so it would definitely be good to find a cleaner solution.

Thanks,
Guenter
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