linux-kernel - Re: [PATCH] Patches for tiny 386 kernels, again. Linux kernel 2.6.22.7

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Message-ID: <Pine.LNX.4.64.0709250927301.23305@fbirervta.pbzchgretzou.qr>
Date:	Tue, 25 Sep 2007 09:28:00 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Dave Jones <davej@...hat.com>
cc:	Jonathan Campbell <jon@...dgrounds.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Patches for tiny 386 kernels, again. Linux kernel 2.6.22.7


On Sep 24 2007 15:09, Dave Jones wrote:
>
> > +#if defined(__i386__) && defined(CONFIG_DMI)
> >  	dmi_check_system(acpi_dmi_table);
> >  #endif
> >  
> > +#ifdef CONFIG_DMI
> >  	dmi_scan_machine();
> > +#endif
> >  
> > +#ifdef CONFIG_DMI
> >  	/* Check and install the TSC clocksource */
> >  	dmi_check_system(bad_tsc_dmi_table);
> > +#endif
> >  
> > +#ifdef CONFIG_DMI
> >  	dmi_check_system(acpi_osl_dmi_table);
> > +#endif
> 
>Instead of adding all these ifdefs, we could just define
>add something along the lines of..
>
>#ifndef CONFIG_DMI
>#define dmi_check_system do {} while (0)
>#endif
>
>in some header, which hides the uglies away from the code
>whilst having the same net effect.

Need #define dmi_check_system(x) otherwise you get

	/* Check and install the TSC clocksource */
	do {} while (0) (bad_tsc_dmi_table);
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