[Make-wifi-fast] [PATCH v4 2/4] mac80211: Import airtime calculation code from mt76

[kbuild test robot]

Hi "Toke,

I love your patch! Perhaps something to improve:

[auto build test WARNING on mac80211-next/master]
[cannot apply to v5.4-rc4 next-20191021]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Toke-H-iland-J-rgensen/Add-Airtime-Queue-Limits-AQL-to-mac80211/20191021-234455
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>


sparse warnings: (new ones prefixed by >>)

>> net/mac80211/airtime.c:211:5: sparse: sparse: symbol 'ieee80211_calc_rx_airtime' was not declared. Should it be static?
>> net/mac80211/airtime.c:282:5: sparse: sparse: symbol 'ieee80211_calc_tx_airtime_rate' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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