[PATCH] kernel/workqueue: Document wq_worker_last_func() argument

[Bart Van Assche <bvanassche@acm.org>]

This patch avoids that the following warning is reported when building
with W=1:

kernel/workqueue.c:938: warning: Function parameter or member 'task' not described in 'wq_worker_last_func'

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 kernel/workqueue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ddee541ea97a..723964a566b1 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -913,6 +913,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task)
 
 /**
  * wq_worker_last_func - retrieve worker's last work function
+ * @task: Task to retrieve last work function of.
  *
  * Determine the last function a worker executed. This is called from
  * the scheduler to get a worker's last known identity.
-- 
2.21.0.155.ge902e9bcae20