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Date:   Thu, 2 Nov 2017 14:34:40 +1100
From:   Stephen Rothwell <>
To:     Tejun Heo <>, Thomas Gleixner <>,
        Ingo Molnar <>, "H. Peter Anvin" <>,
        Peter Zijlstra <>
Cc:     Linux-Next Mailing List <>,
        Linux Kernel Mailing List <>,
        Tal Shorer <>,
        Frederic Weisbecker <>
Subject: linux-next: build failure after merge of the workqueues tree

Hi Tejun,

After merging the workqueues tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

kernel/workqueue.c: In function 'workqueue_init_early':
kernel/workqueue.c:5561:56: error: 'cpu_isolated_map' undeclared (first use in this function)
  cpumask_andnot(wq_unbound_cpumask, cpu_possible_mask, cpu_isolated_map);

Caused by commit

  b5149873a0c2 ("workqueue: respect isolated cpus when queueing an unbound work")

interacting with commit

  edb9382175c3 ("sched/isolation: Move isolcpus= handling to the housekeeping code")

from the tip tree.

I am not sure how to fix this, so I have reverted b5149873a0c2 for today.

Stephen Rothwell

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