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-rw-r--r--include/net/mac80211.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a990338a766e..bdee1cc19c7e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -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_*