From 3413e97dbbae8561e01ac28ccb0d4bbe7ce933f4 Mon Sep 17 00:00:00 2001 From: Kevin Darbyshire-Bryant Date: Tue, 21 Jul 2015 15:50:15 +0100 Subject: [PATCH] ath10k: suppress 'failed to process fft' warning messages 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 Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/wmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 0791a4336e80..1435614b0a55 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -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; } -- 2.30.2