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workqueue: move function definitions within CONFIG_SMP block

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In commit 7ee681b25284 ("workqueue: Convert to state machine callbacks"),
three new function definitions were added: ‘workqueue_prepare_cpu’,
‘workqueue_online_cpu’ and ‘workqueue_offline_cpu’.

Move these function definitions within a CONFIG_SMP block since they are
not used outside of it. This will match function declarations in header
<include/linux/workqueue.h>, and silence the following gcc warning (W=1):

  kernel/workqueue.c:4743:5: warning: no previous prototype for ‘workqueue_prepare_cpu’ [-Wmissing-prototypes]
  kernel/workqueue.c:4756:5: warning: no previous prototype for ‘workqueue_online_cpu’ [-Wmissing-prototypes]
  kernel/workqueue.c:4783:5: warning: no previous prototype for ‘workqueue_offline_cpu’ [-Wmissing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Mathieu Malaterre 2018-05-22 21:47:32 +02:00 committed by Tejun Heo
parent 197f6accac
commit 66448bc274
1 changed files with 2 additions and 2 deletions
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4
kernel/workqueue.c
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@ -4626,6 +4626,8 @@ void wq_worker_comm(char *buf, size_t size, struct task_struct *task)
mutex_unlock(&wq_pool_attach_mutex);
}
#ifdef CONFIG_SMP
/*
* CPU hotplug.
*
@ -4846,8 +4848,6 @@ int workqueue_offline_cpu(unsigned int cpu)
return 0;
}
#ifdef CONFIG_SMP
struct work_for_cpu {
struct work_struct work;
long (*fn)(void *);