[PATCH rtw-next 0/3] wifi: rtw88: three fixes around the firmware recovery

[Mehmet Fide <mehmet.fide@gmail.com>]

From: Mehmet Fide <mehmet.fide@screeningeagle.com>

Three fixes for what a firmware crash test showed on an RTL8822CE.
They are independent of the channel switch series.

Tested on rtw-next (04c998418722) on an i.MX8MP board with
PROVE_LOCKING, DEBUG_ATOMIC_SLEEP and kmemleak, with hostapd. The
firmware crashes were triggered from debugfs on the RTL8822CE:

- patch 1: three crashes with an associated station interface lost
  five reserved pages before and none after; six crashes with an AP
  interface lost three before and none after
- patch 2: an unbind after the crashes warned "Have pending ack
  frames!" before and did not after. With a test build that drops
  every TX report of the firmware, the unbind of the RTL8822CE warned
  before; after, neither it nor the RTL8822BU did
- patch 3: each of three crashes with an associated station gave the
  "sleeping function called from invalid context" report before and
  none did after; the link was back after every crash

With the three patches, AP, association, power save, firmware crash
and scan tests on the RTL8822CE, RTL8822CU, RTL8822BU and RTL8821CU on
both bands gave no kernel report.

Mehmet Fide (3):
  wifi: rtw88: free the reserved pages of an interface on firmware
    recovery
  wifi: rtw88: report the frames purged from the TX report queue
  wifi: rtw88: reset the stations outside of RCU on firmware recovery

 drivers/net/wireless/realtek/rtw88/main.c |  8 +++-----
 drivers/net/wireless/realtek/rtw88/tx.c   | 20 ++++++++++++++++----
 drivers/net/wireless/realtek/rtw88/tx.h   |  1 +
 3 files changed, 20 insertions(+), 9 deletions(-)


base-commit: 04c9984187228904f222681661c50db3f0c50b71
-- 
2.56.0