On Mon, Apr 6, 2020 at 8:36 PM Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > > On Mon, 2020-04-06 at 19:55 +0530, Krishna Chaitanya wrote: > > > > iw phy0 interface add wlan0 type station > > > ip link set wlan0 up > > Ah okay, got it, thanks. Very narrow window though :-) as the > > alloc_ordered_workqueue > > doesn't need RTNL and there is a long way to go to do if_add() from > > user and setup > > the driver for interrupts. > > True, I do wonder how this is hit. Maybe something with no preempt and a > uevent triggering things? Probably, it might be specific to the dragonboard410c configuration > > Again depends on the driver though, it > > should properly handle > > pending ieee80211_register_hw() with start(). > It could, but it'd be really tricky. Much better to fix mac80211. Sure, anyways it is a good change.
