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cfg80211: add local BSS receive time to survey information

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This is useful for checking how much airtime is being used up by other
transmissions on the channel, e.g. by calculating (time_rx - time_bss_rx)
or (time_busy - time_bss_rx - time_tx)

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20190828102042.58016-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau
2019-08-28 12:20:42 +02:00
committed by Johannes Berg
parent 7010998c6c
commit c8cd6e7f15
3 changed files with 11 additions and 0 deletions
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4
net/wireless/nl80211.c
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@@ -8806,6 +8806,10 @@ static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
survey->time_scan, NL80211_SURVEY_INFO_PAD))
goto nla_put_failure;
if ((survey->filled & SURVEY_INFO_TIME_BSS_RX) &&
nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BSS_RX,
survey->time_bss_rx, NL80211_SURVEY_INFO_PAD))
goto nla_put_failure;
nla_nest_end(msg, infoattr);