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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: Zefir Kurtisi <zefir.kurtisi@neratec.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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@ -198,7 +198,8 @@ void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data,
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sc->dfs_prev_pulse_ts = pe.ts;
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if (ard.pulse_bw_info & PRI_CH_RADAR_FOUND)
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ath9k_dfs_process_radar_pulse(sc, &pe);
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if (ard.pulse_bw_info & EXT_CH_RADAR_FOUND) {
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if (IS_CHAN_HT40(ah->curchan) &&
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ard.pulse_bw_info & EXT_CH_RADAR_FOUND) {
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pe.freq += IS_CHAN_HT40PLUS(ah->curchan) ? 20 : -20;
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ath9k_dfs_process_radar_pulse(sc, &pe);
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}
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