Corentin Labbe [off-list ref] 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 =C2=AB=C2=A0disabl=

e_nest_pmu_counters=C2=A0=C2=BB:

arch/powerpc/platforms/powernv/opal-imc.c:130:13: error=C2=A0: assignment=

 discards =C2=AB=C2=A0const=C2=A0=C2=BB qualifier from pointer target type =
[-Werror=3Ddiscarded-qualifiers]

   l_cpumask =3D 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