powerpc/pseries: Fix CONFIG_NUMA=n build

[Michael Ellerman]

On Wed, 2018-05-09 at 14:58:18 UTC, Michael Ellerman wrote:
> The build is failing with CONFIG_NUMA=n and some compiler versions:
> 
>   arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_online_cpu':
>   hotplug-cpu.c:(.text+0x12c): undefined reference to `timed_topology_update'
>   arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_cpu_remove':
>   hotplug-cpu.c:(.text+0x400): undefined reference to `timed_topology_update'
> 
> Fix it by moving the empty version of timed_topology_update() into the
> existing #ifdef block, which has the right guard of SPLPAR && NUMA.
> 
> Fixes: cee5405da402 ("powerpc/hotplug: Improve responsiveness of hotplug change")
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc fixes.

https://git.kernel.org/powerpc/c/6c0a8f6b5a45ac892a763b6299bd3c

cheers