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Re: [RFC] mac80211: remove per band sta supported rates

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On Wed, 2011-10-05 at 13:15 +0200, Stanislaw Gruszka wrote:

> > Yeah I was going to say ... the main purpose of this these days seems to
> > be catching this tx-on-wrong-band (which should be channel) ...
> 
> There is a old patch from Luis, which add channel to sta_info,
> http://www.spinics.net/lists/linux-wireless/msg56399.html
> I could incorporate it into my sta->supp_rates[BAND] removal patch,
> so we will not loose debuggability, but event extend it.

That seems tricky with CSA, I'm not sure I'd want to go there?
 
> > > 1) started at ieee80211_sta_connection_lost()
> > > https://bugzilla.redhat.com/show_bug.cgi?id=731365#c0
> > > could be fixed by:
> > > ieee80211_set_disassoc(..., false);
> > > ieee80211_send_deauth_disassoc(, false);
> > 
> > Why would this trigger the problem? Can we somehow lose connection while
> > already trying to connect to a new AP?
> 
> Not sure if I understand. I think that change should not influence
> new AP connection. Also if we really loose connection to old AP, not
> sending deauth/disassoc frames does not matter. It can have matter if
> for some reason old AP start to become available again, so we properly
> disassociate. But for such corner case we should rather not care.

True, but I'm not sure I understand how we can even run into the problem
in this scenario. How can we be on a different band when detecting that
the AP went away? No wonder it went away then ... we're on the wrong
band?!

johannes

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