On Mon, 2020-04-06 at 15:44 +0300, Kalle Valo wrote: > > > user-space ieee80211_register_hw() RX IRQ > > +++++++++++++++++++++++++++++++++++++++++++++ > > | | | > > |<---wlan0---wiphy_register() | > > |----start wlan0---->| | > > | |<---IRQ---(RX packet) > > | Kernel crash | > > | due to unallocated | > > | workqueue. | [snip] > I have understood that no frames should be received until mac80211 calls > struct ieee80211_ops::start: > > * @start: Called before the first netdevice attached to the hardware > * is enabled. This should turn on the hardware and must turn on > * frame reception (for possibly enabled monitor interfaces.) True, but I think he's saying that you can actually add and configure an interface as soon as the wiphy is registered? The "wlan0" is kinda wrong there, should be "phy0" I guess, and then interface added from iw? johannes
