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Mark Anthony AgarroandFelix Fietkau
bfb044bd24
mt7925_mcu_config_sniffer() hardcodes drop_err = 1, ignoring what
mac80211 actually requested via configure_filter(). FIF_FCSFAIL is
computed there but discarded instead of persisted.
Persist the FCSFAIL bit on the phy in mt7925_configure_filter() and
read it back in mt7925_mcu_config_sniffer() to derive drop_err, so the
firmware sniffer only passes through unfiltered/marginal frames when a
monitor listener actually requested them.
mt7925_mcu_config_sniffer() is only reached from mt7925_change_chanctx(),
which is itself only exercised on a monitor-mode chanctx, so this stays
scoped to monitor mode.
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Tested-by: Devin Wittmayer <[email protected]>
Signed-off-by: Mark Anthony Agarro <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>