Hi Johannes,
In brcmsmac a fatal error in the device results in calling
ieee80211_restart_hw(). This was done under the assumption that mac80211
would reconfigure everything doing .start(), .add_interface() etc, but
looking at a log in redhat bugzilla makes me suspicious about that.
The only reason I could find in ieee80211_reconfig is that
local->open_count would be zero, right?
At the time of the fatal error AMPDU packets were being transmitted so I
assume local->open_count would *not* be zero as it seems to match the
state of the netdev interface.
Regards,
Arend
---8<--------------------------------------------------------------
/* everything else happens only if HW was up & running */
if (!local->open_count)
goto wake_up;
/*
* Upon resume hardware can sometimes be goofy due to
* various platform / driver / bus issues, so restarting
* the device may at times not work immediately. Propagate
* the error.
*/
res = drv_start(local);
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