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Felix Fietkau
31f1fdb7cd
After a full chip reset, mac80211 reconfig replays interface, link and
channel context setup. mt7996_vif_link_add() short-circuits when the
link_id is still marked in mvif->valid_links, a state introduced for
postponing link teardown to interface removal. The reset path frees the
link structures without clearing those bits, so the replayed setup never
re-creates dev_info/bss_info/STA records in the restarted firmware and
never re-registers the link wcid, leaving the device inoperative.
The reset path also leaks every allocated MLD index: per-link indices
and the per-vif group/remap indices are re-allocated from scratch during
reconfig, but the old bits stay set in the masks, so repeated full
resets exhaust the index space.
Clear valid_links in the reset vif iterator and reset the MLD index
masks alongside the existing omac_mask clearing.
Fixes: ace5d3b6b49e ("wifi: mt76: mt7996: improve hardware restart reliability")
Fixes: 08813703ac41 ("wifi: mt76: mt7996: Destroy vif active links in mt7996_remove_interface()")
Signed-off-by: Felix Fietkau <[email protected]>