[PATCH] ath10k: suppress 'failed to process fft' warning messages.

[Kalle Valo]

Kevin Darbyshire-Bryant <kevin at darbyshire-bryant.me.uk> writes:

> 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 at darbyshire-bryant.me.uk>

Thanks, applied.

In the future please use v2, v3 to mark different versions of the patch
so that I can easily find the latest version:

https://www.kernel.org/doc/Documentation/SubmittingPatches

-- 
Kalle Valo