[PATCH 3/5] RDMA/iwcm: Simplify cm_event_handler()

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

queue_work() can test efficiently whether or not work is pending. Hence,
simplify cm_event_handler() by always calling queue_work() instead of only
if the list with pending work is empty.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/infiniband/core/iwcm.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index ae9c12409f8a..3d66aec36899 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -1093,11 +1093,8 @@ static int cm_event_handler(struct iw_cm_id *cm_id,
 	}
 
 	refcount_inc(&cm_id_priv->refcount);
-	if (list_empty(&cm_id_priv->work_list)) {
-		list_add_tail(&work->list, &cm_id_priv->work_list);
-		queue_work(iwcm_wq, &work->work);
-	} else
-		list_add_tail(&work->list, &cm_id_priv->work_list);
+	list_add_tail(&work->list, &cm_id_priv->work_list);
+	queue_work(iwcm_wq, &work->work);
 out:
 	spin_unlock_irqrestore(&cm_id_priv->lock, flags);
 	return ret;