Add a separate bit in struct ieee80211_tx_info to indicate airtime tracked
as broadcast/multicast. This avoids a race condition where airtime from
stations that were just removed wasn't getting subtracted from the total
PHY airtime.
Fixes: 95e633efbd ("mac80211: add AQL support for broadcast/multicast packets")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
The AQL limit for buffered broadcast packets is higher than the maximum
total pending airtime limit. This can get unicast data stuck whenever there
is too much pending broadcast data. Fix this by excluding broadcast AQL from
the total limit.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
