linux-kernel - Re: [PATCH] edac: need to export cpu_llc

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Date:	Wed, 16 Sep 2009 06:41:51 +0200
From:	Borislav Petkov <borislav.petkov@....com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Linus <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] edac: need to export cpu_llc_id

Hi Stephen,

On Wed, Sep 16, 2009 at 09:39:35AM +1000, Stephen Rothwell wrote:
> Today's linux-next build (x86_64 allmodconfig) failed like this:
> 
> ERROR: "per_cpu__cpu_llc_id" [drivers/edac/edac_core.ko] undefined!
> 
> Caused by commit b69b29de65fe4078b125acc9dea34be82f7c362c ("EDAC, AMD:
> carve out MCi_STATUS decoding").
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  arch/x86/kernel/smpboot.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
> index a25eeec..04c74b4 100644
> --- a/arch/x86/kernel/smpboot.c
> +++ b/arch/x86/kernel/smpboot.c
> @@ -100,6 +100,7 @@ EXPORT_SYMBOL(smp_num_siblings);
>  
>  /* Last level cache ID of each logical CPU */
>  DEFINE_PER_CPU(u16, cpu_llc_id) = BAD_APICID;
> +EXPORT_PER_CPU_SYMBOL(cpu_llc_id);
>  
>  /* representing HT siblings of each logical CPU */
>  DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
> -- 
> 1.6.3.3

proper fix is at http://marc.info/?l=linux-kernel&m=125302459621925

we still have to figure out who's gonna pick it up. Ingo?

-- 
Regards/Gruss,
Boris.

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