Johannes Berg [off-list ref] writes:

On Sat, 2018-09-08 at 00:22 +0200, Toke H=C3=B8iland-J=C3=B8rgensen wrote:

quoted

- I didn't get rid of the register_airtime() callback. As far as I can t=

ell,

quoted

  only iwlwifi uses the tx_time field in the struct tx_info. Which means=

 that

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  we *could* probably use it for this and just make the other drivers se=

t it;

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  but I'm not sure what effects that would have in relation to WMM-AC for
  those drivers, so I chickened out. Will have to try it out, I guess; b=

ut it

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  also depends on whether ath10k needs to be able to report airtime
  asynchronously anyway. So I'll hold off on that for a bit more.

I don't think you need to be concerned, the reporting through this has
no immediate effect as the driver would also have to set the feature
flag (NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) for userspace to be able
to use WMM admission TSPECs, and getting tx_tspec->admitted_time to be
non-zero in ieee80211_sta_tx_wmm_ac_notify().

Great! In that case I'll try moving the reporting go through the tx_info
struct and check that it works for ath9k :)

-Toke