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Re: [PATCH 4/4] cfg80211: fix race between core hint and driver's custom apply

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On Wed, 2009-05-13 at 15:29 -0700, Luis R. Rodriguez wrote:

> >>       queue_regulatory_request(request);
> >>
> >> +     /*
> >> +      * This ensures last_request is populated once modules
> >> +      * come swinging in and calling regulatory hints and
> >> +      * wiphy_apply_custom_regulatory().
> >> +      */
> >> +     flush_scheduled_work();
> >> +
> >
> > Umm, this is a little stupid, first you queue it and then you flush the
> > workqueue... Why not call the function that runs off the workqueue
> > directly?
> 
> That was the original approach -- but then we went on a bagwagon on
> getting all these regulatory hints through the workqueue. I can
> address for for wireless-testing but not sure what path we prefer for
> stable. The above one liner seems small enough and would be nice to
> get confirmation from a user on stable.

Yeah definitely the way to go for stable, and we can als put it into
wireless-testing. But I think ultimately we should just refactor what is
necessary and just call the function that would otherwise run off the
workqueue. Can do that after this patch though.

johannes

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