Re: [BUG] 2.6.30-rc4 hid bluetooth not working

[Marcel Holtmann <marcel@holtmann.org>]

Hi Marc,

can you please stop breaking the threading here. Your responses are
hanging all over the place and it is hard to keep track of them.

> >> > Subject: bluetooth: Fix serialization when adding/deleting connections in hci_sysfs
> >> > 
> >> > add_conn and del_conn should be serialized, but flush_workqueue can't be used
> >> > by the worker thread on it's own queue, so use flush_work to serialize add_conn
> >> > and del_conn against each other.
> >> > 
> >> > Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
> >> 
> >> Acked-by: Jiri Kosina <jkosina@suse.cz>
> >> 
> >> FWIW.
> >
> >nak from my side since I think it is the wrong fix. We really wanna wait
> >for all works to finish here. This includes work from other connection
> >attempts or terminations.
> 
> IMHO, there is no need to wait for work currently running, since this is a
> singlethread workqueue.
> 
> But it is perhaps simpler to use a lock (mutex or watherver locking primitive).

I think that using a mutex might be a better solution to ensure that
previous work has been finished.

Regards

Marcel