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Date: Wed, 11 Sep 2013 12:07:45 +0530
From: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
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To: Vladimir Murzin <murzin.v@gmail.com>
Subject: Re: [PATCH 1/3] powerpc: export cpu_to_chip_id
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On 09/10/2013 10:08 PM, Vladimir Murzin wrote:
> While cross-building for PPC64 I've got
>
Vladimir,

Below commit ID fixes this issue.

commit 256588fda10f2a712631f8a4e72641a66adebdb8
Author: Guenter Roeck <linux@roeck-us.net>
Date:   Mon Sep 9 18:37:56 2013 -0700

     powerpc: Export cpu_to_chip_id() to fix build error

-Vasant

> ERROR: ".cpu_to_chip_id" [drivers/block/mtip32xx/mtip32xx.ko] undefined!
>
> mtip32xx refer to topology_physical_package_id, which stands for
> cpu_to_chip-id.
>
> Make cpu_to_chip-id (and topology_physical_package_id) available for
> external users.
>
> Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
> ---
>   arch/powerpc/kernel/smp.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 442d8e2..1d9c1c2 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -611,6 +611,7 @@ int cpu_to_chip_id(int cpu)
>   	of_node_put(np);
>   	return of_get_ibm_chip_id(np);
>   }
> +EXPORT_SYMBOL_GPL(cpu_to_chip_id);
>
>   /* Helper routines for cpu to core mapping */
>   int cpu_core_index_of_thread(int cpu)
>