···4949 for this and return -1 when the spin lock fails. 5050 The locking there should also properly protect against 5151 set_multicast_list5252- Context: BHs disabled5252+ Context: Process with BHs disabled or BH (timer).5353 Notes: netif_queue_stopped() is guaranteed false5454 Interrupts must be enabled when calling hard_start_xmit.5555 (Interrupts must also be enabled when enabling the BH handler.)