Stephen Rothwell [off-list ref] writes:

Hi Michal,

After merging the kbuild tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

...

arch/powerpc/mm/hash_utils_64.c:929:10: note: in expansion of macro 'IS_ENABLED'
  else if IS_ENABLED(CONFIG_PPC_NATIVE)
          ^
cc1: all warnings being treated as errors

Caused by commit

  7353644fa9df ("powerpc/mm: Fix build break when PPC_NATIVE=n")

from the powerpc tree interacting with commit

  5e8754fd80b0 ("kconfig.h: allow to use IS_{ENABLE,REACHABLE} in macro expansion")

from the kbuild tree.

**expletive deleted**

I was wary of IS_ENABLED(), I should have trusted my instincts.

I have applied the following fix patch (that should be applied to the
powerpc tree):

Applied, thanks.

cheers