Overhaul monitor mode handling:

o replace DLT_IEEE802_11 support in net80211 with DLT_IEEE802_11_RADIO
  and remove explicit bpf support from wireless drivers; drivers now
  use ieee80211_radiotap_attach to setup shared data structures that
  hold the radiotap header for each packet tx/rx
o remove rx timestamp from the rx path; it was used only by the tdma support
  for debugging and was mostly useless due to it being 32-bits and mostly
  unavailable
o track DLT_IEEE80211_RADIO bpf attachments and maintain per-vap and
  per-com state when there are active taps
o track the number of monitor mode vaps
o use bpf tap and monitor mode vap state to decide when to collect radiotap
  state and dispatch frames; drivers no longer explicitly directly check
  bpf state or use bpf calls to tap frames
o handle radiotap state updates on channel change in net80211; drivers
  should not do this (unless they bypass net80211 which is almost always
  a mistake)
o update various drivers to be more consistent/correct in handling radiotap
o update ral to include TSF in radiotap'd frames
o add promisc mode callback to wi

Reviewed by:	cbzimmer, rpaulo, thompsa

1 files changed, 1 insertions, 2 deletions

diff --git a/sys/net80211/ieee80211_scan_sta.c b/sys/net80211/ieee80211_scan_sta.c
index cef3db4..62ef39e 100644
--- a/sys/net80211/ieee80211_scan_sta.c
+++ b/sys/net80211/ieee80211_scan_sta.c
@@ -219,7 +219,7 @@ static int
 sta_add(struct ieee80211_scan_state *ss, 
 	const struct ieee80211_scanparams *sp,
 	const struct ieee80211_frame *wh,
-	int subtype, int rssi, int noise, int rstamp)
+	int subtype, int rssi, int noise)
 {
 #define	ISPROBE(_st)	((_st) == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
 #define	PICK1ST(_ss) \
@@ -278,7 +278,6 @@ found:
 		ise->se_rssi = IEEE80211_RSSI_GET(se->se_avgrssi);
 		ise->se_noise = noise;
 	}
-	ise->se_rstamp = rstamp;
 	memcpy(ise->se_tstamp.data, sp->tstamp, sizeof(ise->se_tstamp));
 	ise->se_intval = sp->bintval;
 	ise->se_capinfo = sp->capinfo;