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

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Date:	Mon, 24 Mar 2014 17:23:27 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Christoph Lameter <cl@...ux.com>
Subject: linux-next: build failure after merge of the akpm-current tree

Hi Andrew,

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

In file included from include/linux/mm.h:897:0,
                 from include/linux/mman.h:4,
                 from arch/powerpc/kernel/asm-offsets.c:22:
include/linux/vmstat.h: In function '__count_vm_event':
include/linux/vmstat.h:36:2: error: implicit declaration of function 'raw_cpu_inc' [-Werror=implicit-function-declaration]
  raw_cpu_inc(vm_event_states.event[item]);
  ^
include/linux/vmstat.h: In function '__count_vm_events':
include/linux/vmstat.h:46:2: error: implicit declaration of function 'raw_cpu_add' [-Werror=implicit-function-declaration]
  raw_cpu_add(vm_event_states.event[item], delta);
  ^

Caused by commit "vmstat: use raw_cpu_ops to avoid false positives on
preemption checks".

My kernel (even going back to v3.13) has no reference to
raw_cpu_inc/add ... missed patch?  Ah, ha percpu-add-raw_cpu_ops.patch
etc are in the later part of the series :-(

I just reverted "vmstat: use raw_cpu_ops to avoid false positives on
preemption checks" and
"vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix"
for today.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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