Re: [PATCH] x86 smp: export smp_num_siblings for oprofile

[Andrew Morton <akpm@osdl.org>]

On Sat, 9 Dec 2006 00:34:24 -0800
Randy Dunlap <randy.dunlap@oracle.com> wrote:

> From: Randy Dunlap <randy.dunlap@oracle.com>
> 
> oprofile uses smp_num_siblings without testing for CONFIG_X86_HT.
> I looked at modifying oprofile, but this way is cleaner & simpler
> and I didn't see a good reason not to just export it when CONFIG_SMP.
> 
> WARNING: "smp_num_siblings" [arch/i386/oprofile/oprofile.ko] undefined!
> 
> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
> ---
>  arch/i386/kernel/smpboot.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- linux-2.6.19-git13.orig/arch/i386/kernel/smpboot.c
> +++ linux-2.6.19-git13/arch/i386/kernel/smpboot.c
> @@ -69,7 +69,7 @@ static int __devinitdata smp_b_stepping;
>  
>  /* Number of siblings per CPU package */
>  int smp_num_siblings = 1;
> -#ifdef CONFIG_X86_HT
> +#ifdef CONFIG_SMP
>  EXPORT_SYMBOL(smp_num_siblings);
>  #endif

smpboot.c isn't compiled if CONFIG_SMP=n, so I'll just remove the ifdef,
thanks.
-
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