[PATCHv2 2/2] ath10k: add spectral scan feature

[Kalle Valo]

Simon Wunderlich <sw at simonwunderlich.de> writes:

> Adds the spectral scan feature for ath10k. The spectral scan is triggered by
> configuring a mode through a debugfs control file. Samples can be gathered via
> another relay debugfs file.
>
> Essentially, to try it out:
>
> ip link set dev wlan0 up
> echo background > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
> iw dev wlan0 scan
> echo disable > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
> cat /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan0 > samples
>
> This feature is still experimental. Based on the original RFC patch of
> Sven Eckelmann.
>
> Signed-off-by: Simon Wunderlich <sw at simonwunderlich.de>
> Signed-off-by: Mathias Kretschmer <mathias.kretschmer at fokus.fraunhofer.de>

While I was commiting this to ath-next-test for build tests and review,
I had a trivial conflict. Please check the patch:

https://github.com/kvalo/ath/commit/85dec746d1f4728176bd06a53b6da4ef014f2a27

Oddly enough with this patch I see a new warning:

include/uapi/linux/swab.h:71:16: error: undefined identifier '__builtin_bswap64'

But I guess there's not much we can do about that?

-- 
Kalle Valo