[PATCH wireless-next v2 00/28] iwlwifi + mac80211 stability

[greearb@candelatech.com]

From: Ben Greear <greearb@candelatech.com>

mac80211 and iwlwifi stability patches from our internal
tree.

General test case is 40 be200 radios attempting to connect and
run max traffic against an AP that doesn't really like that many
eMLSR stations.  Firmware crashes, AP rejections, assoc timeouts,
and other problems are seen often, and that seems to hit a lot
of edge cases.  Kernel has kasan, lockdep and other debugging
enabled.

This was primarily tested against 6.18.14 stable kernel, but has been
revised to work against wireless-next and it is passing at least the
first hour of tests so far.  Likely some problems still remain in
this area.

checkpatch seems mostly satisfied.

v2:  Remove 0002 patch that did not actually do anything useful.
     Add new patch to check debugfs creation in net/wireless.  Hopefully
     this solves the syzbot WARNING that was reported.

Ben Greear (28):
  wifi: iwlwifi: mld:  Check for NULL before lookup.
  wifi: iwlwifi: mld: Add check for null vif in stats callback.
  wifi: wireless:  Check debugfs create return values.
  wifi: mac80211:  Check debugfs creation return values.
  wifi: mac80211: do not fail taking sta to lower state.
  wifi: mac80211: Mark sta as uploaded if single transition succeeds.
  wifi: mac80211:  Fix use-after-free of debugfs inodes.
  wifi: mac80211: Debugfs safety checks.
  wifi: mac80211: Use warn-on-once in drv_remove_chanctxt
  wifi: mac80211: Ensure sta debugfs is not double-freed.
  wifi: iwlwifi: mld: Fix stale reference in fw_id_to_link_sta
  wifi: iwlwifi: mld:  Improve logging in error cases.
  wifi: iwlwifi: mld: Remove warning about BAID.
  wifi: mac80211: Add dmesg log regarding warn-on in drv-stop.
  wifi: iwlwifi: mld: Fix use-after-free of bss_conf
  wifi: iwlwifi: mld: Check for null in iwl_mld_wait_sta_txqs_empty
  wifi: iwlwifi: mld: use warn-on-once in error path.
  wifi: iwlwifi: mld: Use warn-on-once in emlsr exit logic.
  wifi: iwlwifi: mld: Improve error message in rx path.
  wifi: iwlwifi: mld: Improve logging message.
  wifi: iwlwifi: mld: Protect from null mld_sta
  wifi: mac80211: Add force-cleanup call to driver.
  wifi: iwlwifi: mld: Support force-cleanup op
  wifi: iwlwifi: mld: Fix NPE in flush logic.
  wifi: iwlwifi: mld: Fix bad return address in tx code.
  wifi: mac80211: Ensure link work-items are only initialized once.
  wifi: iwlwifi: mld: Convert to WARN_ONCE in link removal path.
  wifi: mac80211: Decrease WARN spam.

 drivers/net/wireless/intel/iwlwifi/mld/agg.c  |  20 +++-
 drivers/net/wireless/intel/iwlwifi/mld/link.c |  42 +++++--
 .../net/wireless/intel/iwlwifi/mld/mac80211.c |  19 +++-
 drivers/net/wireless/intel/iwlwifi/mld/mlo.c  |   5 +-
 drivers/net/wireless/intel/iwlwifi/mld/rx.c   |   4 +-
 drivers/net/wireless/intel/iwlwifi/mld/sta.c  |  20 +++-
 drivers/net/wireless/intel/iwlwifi/mld/sta.h  |   2 +-
 .../net/wireless/intel/iwlwifi/mld/stats.c    |   2 +-
 drivers/net/wireless/intel/iwlwifi/mld/tx.h   |   2 +
 include/net/mac80211.h                        |   7 ++
 net/mac80211/debugfs.c                        |  11 ++
 net/mac80211/debugfs_key.c                    |   6 +
 net/mac80211/debugfs_netdev.c                 | 106 +++++++++++++++++-
 net/mac80211/debugfs_sta.c                    |  15 +++
 net/mac80211/driver-ops.c                     |  10 +-
 net/mac80211/driver-ops.h                     |  12 +-
 net/mac80211/ieee80211_i.h                    |   1 +
 net/mac80211/link.c                           |  29 +++--
 net/mac80211/sta_info.c                       |   8 +-
 net/mac80211/util.c                           |   8 +-
 net/wireless/core.c                           |  11 ++
 21 files changed, 296 insertions(+), 44 deletions(-)

-- 
2.42.0