Re: [PATCH] Re: linking problem with 2.6.0-test6-bk10

From: Dave Jones
Date: Thu Oct 09 2003 - 19:57:05 EST


On Fri, Oct 10, 2003 at 01:42:24AM +0100, Nuno Monteiro wrote:

> Got 5 minutes to look at this today, here is the proper fix. This allows
> to compile for Winchip when CONFIG_MTRR is off. The alternative would be
> to pull in asm/mtrr.h and asm/errno.h, but it seems a bit overkill since
> we only need mtrr_centaur_report_mcr.
>
> Booted and working fine here on my small gateway box for the past hour.
> Please apply.
>
> +#ifndef CONFIG_MTRR
> +static __inline__ void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi) {;}
> +#endif
> +

As well as looking pretty ugly, I can't convince myself this is safe.
I think it's going to be better off making that whole code compile out
if MTRRs are disabled. MTRR is a must-have if we want this code to actually
work anyway.

Either change the ifdef at the top of centaur.c to
#ifdef CONFIG_X86_OOSTORE && CONFIG_MTRR, or futz around it in the
Kconfig, by changing the X86_OOSTORE depends line to

depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR

Dave

--
Dave Jones http://www.codemonkey.org.uk
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