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mt76: mt7615: fix throughput regression on DFS channels

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[ Upstream commit aac86cebb4 ]

For some reason, mt7615 reacts badly to repeatedly enabling/disabling the radar
detector without also switching the channel.
This results in very bad throughput on DFS channels, because
hw->conf.radar_enabled can get toggled a few times after CAC ends.
Fix this by always leaving the DFS detector enabled on DFS channels and instead
suppress unwanted detection events.

Fixes: 2c86f67520 ("mt76: mt7615: fix/rewrite the dfs state handling logic")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau 2022-06-24 20:57:47 +02:00 • committed by Greg Kroah-Hartman
commit c345cab041
4 changed files with 7 additions and 25 deletions
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