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caif-hsi: Remove deprecated create_singlethread_workqueue

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alloc_workqueue replaces deprecated create_singlethread_workqueue().

A dedicated workqueue has been used since the workitems are being used
on a packet tx/rx path. Hence, WQ_MEM_RECLAIM has been set to guarantee
forward progress under memory pressure.

An ordered workqueue has been used since workitems &cfhsi->wake_up_work
and &cfhsi->wake_down_work cannot be run concurrently.

Calls to flush_workqueue() before destroy_workqueue() have been dropped
since destroy_workqueue() itself calls drain_workqueue() which flushes
repeatedly till the workqueue becomes empty.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bhaktipriya Shridhar 2016-07-25 18:40:57 +05:30 committed by David S. Miller
parent eefc06bd02
commit deb1f45a2f
1 changed files with 1 additions and 4 deletions
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5
drivers/net/caif/caif_hsi.c
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@ -1201,7 +1201,7 @@ static int cfhsi_open(struct net_device *ndev)
clear_bit(CFHSI_AWAKE, &cfhsi->bits);
/* Create work thread. */
cfhsi->wq = create_singlethread_workqueue(cfhsi->ndev->name);
cfhsi->wq = alloc_ordered_workqueue(cfhsi->ndev->name, WQ_MEM_RECLAIM);
if (!cfhsi->wq) {
netdev_err(cfhsi->ndev, "%s: Failed to create work queue.\n",
__func__);
@ -1267,9 +1267,6 @@ static int cfhsi_close(struct net_device *ndev)
/* going to shutdown driver */
set_bit(CFHSI_SHUTDOWN, &cfhsi->bits);
/* Flush workqueue */
flush_workqueue(cfhsi->wq);
/* Delete timers if pending */
del_timer_sync(&cfhsi->inactivity_timer);
del_timer_sync(&cfhsi->rx_slowpath_timer);