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wifi: mt76: fix 4th chain ACK RSSI bitmask in sta_poll

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The per-chain response-frame RSSI values are packed one per byte, but the
4th chain was extracted with GENMASK(31, 14) instead of GENMASK(31, 24).
The wrong mask overlaps chains 1-3 and shifts by 14, producing a garbage
chain-3 value that corrupts ack_signal/avg_ack_signal on 4x4 radios.
Extract the correct byte.

Fixes: a71b648e35 ("wifi: mt76: mt7915: add ack signal support")
Fixes: ea5d99d07f ("wifi: mt76: mt7996: enable ack signal support")
Fixes: 67fc7a304b ("wifi: mt76: mt7921: add ack signal support")
Fixes: c948b5da6b ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Link: https://patch.msgid.link/20260722082610.2699628-12-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2026-07-22 08:26:04 +00:00
commit 5caa622956
4 changed files with 4 additions and 4 deletions
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