Re: [PATCH] make mach-generic/summit.c compile on UP

From: keith mannthey
Date: Thu Oct 05 2006 - 18:25:17 EST


On Thu, 2006-10-05 at 23:18 +0200, Jiri Kosina wrote:
> On Thu, 5 Oct 2006, keith mannthey wrote:
>
> > > In file included from arch/i386/mach-generic/summit.c:17:
> > > include/asm/mach-summit/mach_apic.h: In function 'apicid_to_node':
> > > include/asm/mach-summit/mach_apic.h:91: error: 'apicid_2_node' undeclared (first use in this function)
> > > include/asm/mach-summit/mach_apic.h:91: error: (Each undeclared identifier is reported only once
> > > include/asm/mach-summit/mach_apic.h:91: error: for each function it appears in.)
> > > Is the patch below correct?
> > Well I guess it would fix the apicid_2_node build error but I can't
> > think of a single good reason to be in a config where you would need any
> > of the summit code in UP. Perhaps a kconfig or makefile change in the
> > right spot would be better.
>
> Yes, this was in fact a product of a random .config (but allowed by
> Kconfig rules). There should definitely be a Kconfig rule not allowing
> having this non-working .config settings.
>
> I guess that probably making CONFIG_X86_GENERIC dependent on CONFIG_SMP
> would not be good, because the mach-default/ makes sense even on UP, am I
> right

Yea I am pretty sure CONFIG_X86_GENERIC is ment to boot UP and SMP
kernels.

Maybe just moving apicid_2_node to a UP safe location would be a good
way to go as well. I overlooked the fact that CONFIG_X86_GENERIC wasn't
always SMP.

Thanks,
Keith

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