workqueue: remove useless WARN_ON_ONCE()

The @cpu is fetched via smp_processor_id() in this function,
so the check is useless.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index fcdf043..4cfcd02 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4461,8 +4461,6 @@ static void wq_unbind_fn(struct work_struct *work)
        struct worker *worker;
 
        for_each_cpu_worker_pool(pool, cpu) {
-               WARN_ON_ONCE(cpu != smp_processor_id());
-
                mutex_lock(&pool->attach_mutex);
                spin_lock_irq(&pool->lock);