>From a0265a7f5161b6cb55e82b71edb236bbe0d9b3ae Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Tue, 19 Mar 2013 13:55:42 -0700
699ce097efe ("workqueue: implement and use pwq_adjust_max_active()")
replaced the only workqueue_freezing usage outside freezer callbacks
with a POOL_FREEZING test. This makes workqueue_freezing unused when
!CONFIG_FREEZER leading to a compiler warning. Define
workqueue_freezing iff CONFIG_FREEZER.
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
---
kernel/workqueue.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index e38d035..775c2f4 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -261,7 +261,9 @@ static DEFINE_SPINLOCK(pwq_lock); /* protects pool_workqueues */
static DEFINE_SPINLOCK(wq_mayday_lock); /* protects wq->maydays list */
static LIST_HEAD(workqueues); /* WQ: list of all workqueues */
+#ifdef CONFIG_FREEZER
static bool workqueue_freezing; /* WQ: have wqs started freezing? */
+#endif
/* the per-cpu worker pools */
static DEFINE_PER_CPU_SHARED_ALIGNED(struct worker_pool [NR_STD_WORKER_POOLS],
--
1.8.1.4
--
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