linux-kernel - Re: [PATCH][POKE] Skip looking for ioapic overrides when ioapics are not present

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Date:	Thu, 31 Mar 2011 12:59:41 +0200
From:	Florian Mickler <florian@...kler.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	kurup_avinash@...oo.com, maciej.rutecki@...il.com, rjw@...k.pl,
	sedat.dilek@...il.com, zersaa@...il.com, stable@...nel.org
Subject: Re: [PATCH][POKE] Skip looking for ioapic overrides when ioapics
 are not present

On Thu, 31 Mar 2011 10:43:42 +0200
Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Florian Mickler <florian@...kler.org> wrote:
> 
> > From: Eric W. Biederman <ebiederm@...ssion.com>
> > 
> > [I submit this as the corresponding bug report is still not closed, the patch 
> > not merged, distributions applying this patch, it is tested to work and I found
> > nowhere any resoning as to why this should be out of tree. I just guessed on
> > the stable tag and number. -Florian] 
> 
> The patch does not build when CONFIG_ACPI is disabled:
> 
>  arch/x86/kernel/apic/io_apic.c: In function ‘acpi_get_override_irq’:
>  arch/x86/kernel/apic/io_apic.c:3792:6: error: ‘acpi_irq_model’ undeclared (first use in this function)
>  arch/x86/kernel/apic/io_apic.c:3792:24: error: ‘ACPI_IRQ_MODEL_IOAPIC’ undeclared (first use in this function)
> 
> When you or Eric resubmits the fixed patch please use the improved changelog 
> below.
> 
> Thanks,
> 
> 	Ingo

Thank you. Will do if it turns out this is still necessary. 
Paul Bolle mentioned in another messgage that there is a commit in
2.6.38 to the same effect:

commit 678301ecadec24ff77ab310eebf8a32ccddb1850 
("x86, ioapic: Don't warn about non-existing IOAPICs if we have none")

Regards,
Flo
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