linux-next: build failure after merge of the akpm-current tree

[Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>]

Hi Andrew,

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

In file included from arch/powerpc/mm/numa.c:23:0:
include/linux/cpuset.h: In function 'cpusets_enabled':
include/linux/cpuset.h:21:2: error: implicit declaration of function 'static_key_false' [-Werror=implicit-function-declaration]
  return static_key_false(&cpusets_enabled_key);
  ^
include/linux/cpuset.h: In function 'nr_cpusets':
include/linux/cpuset.h:27:2: error: implicit declaration of function 'static_key_count' [-Werror=implicit-function-declaration]
  return static_key_count(&cpusets_enabled_key) + 1;
  ^
include/linux/cpuset.h: In function 'cpuset_inc':
include/linux/cpuset.h:32:2: error: implicit declaration of function 'static_key_slow_inc' [-Werror=implicit-function-declaration]
  static_key_slow_inc(&cpusets_enabled_key);
  ^
include/linux/cpuset.h: In function 'cpuset_dec':
include/linux/cpuset.h:37:2: error: implicit declaration of function 'static_key_slow_dec' [-Werror=implicit-function-declaration]
  static_key_slow_dec(&cpusets_enabled_key);
  ^

And lots more - you get the idea.

Caused by commit 95d217015fd3 ("mm: page_alloc: use jump labels to
avoid checking number_of_cpusets").  See Rule 1 in
Documentation/SubmitChecklist :-(

I have reverted that commit for today.
-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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