[PATCH] powerpc: powernv: Fix build error on const discarding

[Michael Ellerman]

Corentin Labbe <clabbe.montjoie at gmail.com> writes:

> On Thu, Aug 17, 2017 at 10:52:11PM +1000, Michael Ellerman wrote:
>> Corentin Labbe <clabbe.montjoie at gmail.com> writes:
>> 
>> > When building a random powerpc kernel I hit this build error:
>> >   CC      arch/powerpc/platforms/powernv/opal-imc.o
>> > arch/powerpc/platforms/powernv/opal-imc.c: In function « disable_nest_pmu_counters »:
>> > arch/powerpc/platforms/powernv/opal-imc.c:130:13: error : assignment discards « const » qualifier from pointer target type [-Werror=discarded-qualifiers]
>> >    l_cpumask = cpumask_of_node(nid);
>> >              ^
>> > This patch simply add const to l_cpumask to fix this issue.
>> 
>> Thanks. I'm not sure why we haven't seen that.
>> 
>> Do you mind attaching your .config ?
>> 
>> cheers
>
> Yes

Thanks.

So the key is:

> CONFIG_PPC_POWERNV=y
...
> # CONFIG_NUMA is not set


Which none of our configs have.

I'll add a test build of that.

Thanks.

cheers