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Commit 4352a4d7 authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: document status.freq restrictions 



It's not always necessary to set the status.freq field, for example
when this would be an expensive calculation. It must be set for all
management frames (as they might be reported to userspace), but for
data frames it's not really required. Document this.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent fad47186

include/net/mac80211.h

+2 −0
Original line number Diff line number Diff line
@@ -1108,6 +1108,8 @@ enum mac80211_rx_vht_flags { 
 *	it but can store it and pass it back to the driver for synchronisation

 * @band: the active band when this frame was received

 * @freq: frequency the radio was tuned to when receiving this frame, in MHz

 *	This field must be set for management frames, but isn't strictly needed

 *	for data (other) frames - for those it only affects radiotap reporting.

 * @signal: signal strength when receiving this frame, either in dBm, in dB or

 *	unspecified depending on the hardware capabilities flags

 *	@IEEE80211_HW_SIGNAL_*