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Re: [PATCH 5/5] mac80211: fix issuing idle calls when device open count is 0

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On Tue, Dec 7, 2010 at 10:12 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Tue, 2010-12-07 at 10:04 -0800, Luis R. Rodriguez wrote:
>> On Tue, Dec 7, 2010 at 9:32 AM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
>> > On Tue, 2010-12-07 at 07:59 -0800, Luis R. Rodriguez wrote:
>> >
>> >> @@ -301,7 +301,7 @@ static void __ieee80211_scan_completed_finish(struct ieee80211_hw *hw,
>> >> Â Â Â }
>> >>
>> >> Â Â Â mutex_lock(&local->mtx);
>> >> - Â Â ieee80211_recalc_idle(local);
>> >> + Â Â ieee80211_recalc_idle_force(local);
>> >> Â Â Â mutex_unlock(&local->mtx);
>> >
>> > This is the change that I don't think is necessary.
>>
>> Without this resume fails.
>
> In what situation? When you just suspend while things are up&running, or
> if you suspend with interfaces down?

I believe Paul was suspending when the interface is up and running.

> It doesn't make sense anyway, so
> something's going on in the rest of the scan code -- we should be
> canceling scans properly when going down and when suspending, well
> before any of this becomes relevant.

The issue might be we race to stop the device prior to canceling a
scan. Do you see that being possible?

  Luis
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