wifi: mt76: mt7996: fix non-MLD station num_sta leak

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The MLO link-reconfiguration rework moved the per-phy num_sta
decrement inside a link_valid guard. link_valid is only set for
MLO links, but num_sta is incremented for every station link,
including the non-MLO deflink. Non-MLO stations bump num_sta
on association and never drop it on removal.

A non-zero num_sta forces connected-mode off-channel scanning which
prevents the directed probe exchange needed to find hidden APs.

Decrement phy->num_sta on the actual link teardown, pairing it with
the unconditional increment on link creation.

Fixes: e8c819df02 ("wifi: mt76: mt7996: Destroy active sta links in mt7996_mac_sta_remove()")
Signed-off-by: Chad Monroe <chad@monroe.io>
Link: https://patch.msgid.link/20260721185333.2419297-2-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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Chad Monroe 2026-07-21 18:53:33 +00:00 • committed by Felix Fietkau

parent 6bb5066cfc

commit 2087f02992

1 changed files with 6 additions and 6 deletions

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drivers/net/wireless/mediatek/mt76/mt7996/main.c

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