[PATCH 00/19] wifi: mt76: mt7925: fix up MLO link lifetime and error handling

[Sean Wang]

From: Sean Wang <sean.wang at mediatek.com>

Hi,

This series fix up MLO link STA lifetime and error handling in mt7925.

The current add path may expose partially initialized links and does
not reliably release host resources when firmware commands fail (e.g.
MCU timeouts). In addition, several helpers internally look up mlink,
creating implicit dependencies on driver state and making the code
harder to reason about and maintain.

Switch link STA handling to RCU lifetime, align WCID publish/teardown
ordering, pass mlink explicitly to helpers, and add host-side unwind
logic to release resources when link add fails.

	Sean

Sean Wang (19):
  wifi: mt76: mt7925: pass mlink to sta_amsdu_tlv()
  wifi: mt76: mt7925: pass WCID indices to bss_basic_tlv()
  wifi: mt76: mt7925: pass mlink and mconf to sta_mld_tlv()
  wifi: mt76: mt7925: pass mlink to mcu_sta_update()
  wifi: mt76: mt7925: resolve primary mlink via def_wcid
  wifi: mt76: mt7925: pass mlink to mac_link_sta_remove()
  wifi: mt76: mt7925: pass mlink to sta_hdr_trans_tlv()
  wifi: mt76: mt7925: validate mlink in sta_hdr_trans_tlv()
  wifi: mt76: mt7925: pass mlink to wtbl_update_hdr_trans()
  wifi: mt76: mt7925: pass mlink to set_link_key()
  wifi: mt76: mt7925: resolve link after acquiring mt76 mutex
  wifi: mt76: mt7925: pass mconf and mlink to wtbl_update_hdr_trans()
  wifi: mt76: mt7925: make WCID cleanup unconditional in
    sta_remove_links()
  wifi: mt76: mt7925: unwind WCID setup on link STA add failure
  wifi: mt76: mt7925: drop WCID reinit after publish
  wifi: mt76: mt7925: move WCID teardown into link_sta_remove()
  wifi: mt76: mt7925: switch link STA allocation to RCU lifetime
  wifi: mt76: mt7925: publish msta->link after successful link add
  wifi: mt76: mt7925: host-only unwind published links on add failure

 .../net/wireless/mediatek/mt76/mt7925/mac.c   |   3 +-
 .../net/wireless/mediatek/mt76/mt7925/main.c  | 221 +++++++++++++-----
 .../net/wireless/mediatek/mt76/mt7925/mcu.c   | 180 +++++++-------
 .../net/wireless/mediatek/mt76/mt7925/mcu.h   |   7 +
 .../wireless/mediatek/mt76/mt7925/mt7925.h    |   8 +-
 drivers/net/wireless/mediatek/mt76/mt792x.h   |   1 +
 6 files changed, 280 insertions(+), 140 deletions(-)

-- 
2.43.0