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Commit 8f010d9c authored by Zefir Kurtisi's avatar Zefir Kurtisi Committed by Kalle Valo
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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: default avatarZefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 00798c38

drivers/net/wireless/ath/ath9k/dfs.c

+2 −1
Original line number Diff line number Diff line
@@ -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);

	}