Re: [PATCH] powerpc: Export cpu_to_chip_id() to fix build error

From: Benjamin Herrenschmidt
Date: Tue Sep 10 2013 - 18:03:59 EST


On Mon, 2013-09-09 at 18:37 -0700, Guenter Roeck wrote:
> powerpc allmodconfig build fails with:
>
> ERROR: ".cpu_to_chip_id" [drivers/block/mtip32xx/mtip32xx.ko] undefined!
>
> The problem was introduced with commit 15863ff3b (powerpc: Make chip-id
> information available to userspace).

Thanks, I'll send that to Linus asap.

Ben.

> Export the missing symbol.
>
> Cc: Vasant Hegde <hegdevasant@xxxxxxxxxxxxxxxxxx>
> Cc: Shivaprasad G Bhat <sbhat@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> 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..8e59abc 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(cpu_to_chip_id);
>
> /* Helper routines for cpu to core mapping */
> int cpu_core_index_of_thread(int cpu)


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