2015-06-16 09:46:55

by Zefir Kurtisi

Subject: [PATCH] ath9k: DFS - consider ext_channel pulses only in HT40 mode

The chip reports radar pulses on extension channel
even if operating in HT20 mode. This patch adds a
sanity check for HT40 mode before it feeds pulses
on extension channel to the pattern detector.

Signed-off-by: Zefir Kurtisi <[email protected]>
---
drivers/net/wireless/ath/ath9k/dfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs.c b/drivers/net/wireless/ath/ath9k/dfs.c
index e98a9ea..5025a4e 100644
--- a/drivers/net/wireless/ath/ath9k/dfs.c
+++ b/drivers/net/wireless/ath/ath9k/dfs.c
@@ -198,7 +198,8 @@ void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data,
sc->dfs_prev_pulse_ts = pe.ts;
if (ard.pulse_bw_info & PRI_CH_RADAR_FOUND)
ath9k_dfs_process_radar_pulse(sc, &pe);
- if (ard.pulse_bw_info & EXT_CH_RADAR_FOUND) {
+ if (IS_CHAN_HT40(ah->curchan) &&
+ ard.pulse_bw_info & EXT_CH_RADAR_FOUND) {
pe.freq += IS_CHAN_HT40PLUS(ah->curchan) ? 20 : -20;
ath9k_dfs_process_radar_pulse(sc, &pe);
}
--
1.9.1

2015-07-11 16:51:43

by Kalle Valo

Subject: Re: ath9k: DFS - consider ext_channel pulses only in HT40 mode

> The chip reports radar pulses on extension channel
> even if operating in HT20 mode. This patch adds a
> sanity check for HT40 mode before it feeds pulses
> on extension channel to the pattern detector.
>
> Signed-off-by: Zefir Kurtisi <[email protected]>

Thanks, applied to wireless-drivers-next.git.

Kalle Valo