On Mittwoch, 16. November 2016 16:16:42 CET Valo, Kalle wrote:
> Sven Eckelmann <[email protected]> writes:
> 
> > From: Simon Wunderlich <[email protected]>
> >
> > QCA 802.11n chips (especially AR9330/AR9340) sometimes end up in a state in
> > which a read of AR_CFG always returns 0xdeadbeef. This should not happen
> > when when the power_mode of the device is ATH9K_PM_AWAKE.
> >
> > This problem is not yet detected by any other workaround in ath9k. No way
> > is known to reproduce the problem easily.
> >
> > Signed-off-by: Simon Wunderlich <[email protected]>
> > [[email protected]: port to recent ath9k, add commit message]
> > Signed-off-by: Sven Eckelmann <[email protected]>
> 
> [...]
> 
> > +void ath_hw_hang_work(struct work_struct *work)
> > +{
> > +   struct ath_softc *sc = container_of(work, struct ath_softc,
> > +                                       hw_hang_work.work);
> > +
> > +   if (ath_hw_hang_deadbeef(sc))
> > +           goto requeue_worker;
> > +
> > +requeue_worker:
> > +   ieee80211_queue_delayed_work(sc->hw, &sc->hw_hang_work,
> > +                                msecs_to_jiffies(ATH_HANG_WORK_INTERVAL));
> > +}
> 
> The goto doesn't make any sense, either me or the function is missing
> something :)
> 
> 

It is just for the next patch. And yes, could be done differently.

Kind regards,
        Sven

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