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ath10k: suppress 'failed to process fft' warning messages

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When using DFS channels on Ath10k, kernel log has repeated warning message
'failed to process fft: -22' typically under medium/heavy traffic.

This patch switches the warnings to driver debug (WMI events) mode only
thus reducing log file noise.

DFS and spectral scan share underlying HW mechanisms and enabling one
(DFS) enables the other (spectral scan) as far as event reporting from
firmware to driver is concerned. Spectral scan events take no part in
processing of DFS radar pulses which are delivered as distinct events,
so the fft (spectral event) warning is harmless and DFS interference
detection/protection still occurs.

Symptoms seen & fix tested in both debug & non-debug modes on TP-Link
Archer C7 v2 platform.

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Kevin Darbyshire-Bryant 2015-07-21 15:50:15 +01:00 committed by Kalle Valo
parent a0d61f5f61
commit 3413e97dbb
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath10k/wmi.c
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@ -3498,7 +3498,7 @@ void ath10k_wmi_event_spectral_scan(struct ath10k *ar,
fftr, fftr_len,
tsf);
if (res < 0) {
ath10k_warn(ar, "failed to process fft report: %d\n",
ath10k_dbg(ar, ATH10K_DBG_WMI, "failed to process fft report: %d\n",
res);
return;
}