On Monday, 4 May 2020 17:41:21 CEST Markus Theil wrote:
> ath10k currently reports survey results for the last interval between each
> invocation of NL80211_CMD_GET_SURVEY. For concurrent invocations, this
> can lead to unexpectedly small results, e.g. when hostapd uses survey
> data and iw survey dump is invoked in parallel. Fix this by returning
> cumulative results, that don't depend on the last invocation. Other
> drivers, e.g. ath9k or mt76 also use this behavior.

It is (unfortunately) not that trivial:

See code and comments from other people:

* https://patchwork.kernel.org/cover/11150285/
* https://patchwork.kernel.org/patch/11150287/
* https://patchwork.kernel.org/patch/11150289/

Kind regards,
        Sven

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