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Re: Connection issues with BW Tracking in mac80211

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On Tue, Feb 24, 2015 at 3:39 PM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Fri, 2015-02-20 at 02:58 +0530, Krishna Chaitanya wrote:
>
>> Before that i have a basic question? Should we reset our tracking after
>> the connection is lost, in my case above the connection was lost (Config
>> change in A triggers a reboot), still mac80211 is tracking the BW changes?
>
> Huh??
>
> So the AP does restart, but mac80211 tries to stay connected to it? That
> seems pretty unlikely. The tracking *shouldn't* have any knowledge of
> what happened before the association, but there could be bugs in the
> flags assignment I guess.
Let me explain the sequences.

STA (mac80211) connects to AP in VHT-80.
AP is reconfigured to 11n40 (stops beaconing for about 30secs and then
starts again).
STA loses connection (HW_CONN_TRACK), iee80211_connection_loss is called.
STA see's AP again and tries to connect, but due to BW tracking in
mac80211 it doesn't connect.

So i guess we are not resetting the tracking after losing connection.
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