25 lines
927 B
Diff
25 lines
927 B
Diff
From: Zefir Kurtisi <zefir.kurtisi@neratec.com>
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Date: Tue, 16 Jun 2015 11:46:42 +0200
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Subject: [PATCH] ath9k: DFS - consider ext_channel pulses only in HT40
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mode
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The chip reports radar pulses on extension channel
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even if operating in HT20 mode. This patch adds a
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sanity check for HT40 mode before it feeds pulses
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on extension channel to the pattern detector.
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Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
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---
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--- a/drivers/net/wireless/ath/ath9k/dfs.c
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+++ b/drivers/net/wireless/ath/ath9k/dfs.c
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@@ -198,7 +198,8 @@ void ath9k_dfs_process_phyerr(struct ath
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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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