libertas: Remove create_workqueue

[Kalle Valo]

Bhaktipriya Shridhar <bhaktipriya96 at gmail.com> wrote:
> alloc_workqueue replaces deprecated create_workqueue().
> 
> In if_sdio.c, the workqueue card->workqueue has workitem
> &card->packet_worker, which is mapped to if_sdio_host_to_card_worker.
> The workitem is involved in sending packets to firmware.
> Forward progress under memory pressure is a requirement here.
> 
> In if_spi.c, the workqueue card->workqueue has workitem
> &card->packet_worker, which is mapped to if_spi_host_to_card_worker.
> The workitem is involved in sending command packets from the host.
> Forward progress under memory pressure is a requirement here.
> 
> Dedicated workqueues have been used in both cases since the workitems
> on the workqueues are involved in normal device operation with
> WQ_MEM_RECLAIM set to gurantee forward progress under memory pressure.
> Since there are only a fixed number of work items, explicit concurrency
> limit is unnecessary.
> 
> flush_workqueue is unnecessary since destroy_workqueue() itself calls
> drain_workqueue() which flushes repeatedly till the workqueue
> becomes empty. Hence the calls to flush_workqueue() before
> destroy_workqueue() have been dropped.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96 at gmail.com>
> Acked-by: Tejun Heo <tj at kernel.org>

Thanks, 1 patch applied to wireless-drivers-next.git:

f9f905b00b87 libertas: Remove create_workqueue

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Sent by pwcli
https://patchwork.kernel.org/patch/9154703/