Only ieee80211_tx_status_irqsafe and ieee80211_rx_irqsafe can be called in hardware interrupt context. The low-level driver must not call any other functions in hardware interrupt context. If there is a need for such call, the low-level driver should first ACK the interrupt and perform the IEEE 802.11 code call after this, e.g. from a scheduled workqueue or even tasklet function.

NOTE: If the driver opts to use the _irqsafe functions, it may not also use the non-IRQ-safe functions!