Certain module dependencies were missing, which could cause a crash on
exit under (very unlikely) circumstances.
#0 l_queue_peek_head (queue=<optimized out>) at ../iwd-1.28/ell/queue.c:241
#1 0x0000aaaab752f2a0 in wiphy_radio_work_done (wiphy=0xaaaac3a129a0, id=6)
at ../iwd-1.28/src/wiphy.c:2013
#2 0x0000aaaab7523f50 in netdev_connect_free (netdev=netdev@entry=0xaaaac3a13db0)
at ../iwd-1.28/src/netdev.c:765
#3 0x0000aaaab7526208 in netdev_free (data=0xaaaac3a13db0) at ../iwd-1.28/src/netdev.c:909
#4 0x0000aaaab75a3924 in l_queue_clear (queue=queue@entry=0xaaaac3a0c800,
destroy=destroy@entry=0xaaaab7526190 <netdev_free>) at ../iwd-1.28/ell/queue.c:107
#5 0x0000aaaab75a3974 in l_queue_destroy (queue=0xaaaac3a0c800,
destroy=destroy@entry=0xaaaab7526190 <netdev_free>) at ../iwd-1.28/ell/queue.c:82
#6 0x0000aaaab7522050 in netdev_exit () at ../iwd-1.28/src/netdev.c:6653
#7 0x0000aaaab7579bb0 in iwd_modules_exit () at ../iwd-1.28/src/module.c:181
In this particular case, wiphy module was de-initialized prior to the
netdev module:
Jul 14 18:14:39 localhost iwd[2867]: ../iwd-1.28/src/wiphy.c:wiphy_free() Freeing wiphy phy0[0]
Jul 14 18:14:39 localhost iwd[2867]: ../iwd-1.28/src/netdev.c:netdev_free() Freeing netdev wlan0[45]
The offchannel priority was also changed to zero, which matches the
priority of frames. Currently there should be no interaction between
offchannel and connect (previous offchannel priority).
This module provides a convenient wrapper around both
CMD_[CANCEL_]_REMAIN_ON_CHANNEL APIs.
Certain protocols require going offchannel to send frames, and/or
wait for a response. The frame-xchg module somewhat does this but
has some limitations. For example you cannot just go offchannel;
an initial frame must be sent out to start the procedure. In addition
frame-xchg does not work for broadcasts since it expects an ACK.
This module is much simpler and only handles going offchannel for
a duration. During this time frames may be sent or received. After
the duration the caller will get a callback and any included error
if there was one. Any offchannel request can be cancelled prior to
the duration expriring if the offchannel work has finished early.
