Re: [PATCH] Bluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works

Tejun Heo [off-list ref] writes:

Hello,

On Sat, Sep 03, 2022 at 07:11:18PM -0700, Luiz Augusto von Dentz wrote:

quoted

And we can check for __WQ_DRAINING? Anyway checking

Please don't do that. That's an internal flag. It shouldn't be *that*
difficult to avoid this without peeking into wq internal state.

Thanks.

It seems we only need to change hdev->{cmd,ncmd}_timer to
hdev->workqueue, there will be no race because drain_workqueue will
flush all pending work internally.
Any new timeout work will see HCI_CMD_DRAIN_WORKQUEUE flags after we
cancel and flushed all the delayed work.

-- 
BRs
Schspa Shi