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From: Bernhard Schmidt <bschmidt@FreeBSD.org>
Date: Sat, 18 Jun 2011 11:27:28 +0000 (UTC)
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Subject: svn commit: r223234 - stable/8/sys/dev/iwn
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Author: bschmidt
Date: Sat Jun 18 11:27:28 2011
New Revision: 223234
URL: http://svn.freebsd.org/changeset/base/223234

Log:
  MFC r220660:
  Only handle beacon misses while in RUN state and not scanning.

Modified:
  stable/8/sys/dev/iwn/if_iwn.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/dev/iwn/if_iwn.c
==============================================================================
--- stable/8/sys/dev/iwn/if_iwn.c	Sat Jun 18 11:25:33 2011	(r223233)
+++ stable/8/sys/dev/iwn/if_iwn.c	Sat Jun 18 11:27:28 2011	(r223234)
@@ -2463,23 +2463,22 @@ iwn_notif_intr(struct iwn_softc *sc)
 			    BUS_DMASYNC_POSTREAD);
 			misses = le32toh(miss->consecutive);
 
-			/* XXX not sure why we're notified w/ zero */
-			if (misses == 0)
-				break;
 			DPRINTF(sc, IWN_DEBUG_STATE,
 			    "%s: beacons missed %d/%d\n", __func__,
 			    misses, le32toh(miss->total));
-
 			/*
 			 * If more than 5 consecutive beacons are missed,
 			 * reinitialize the sensitivity state machine.
 			 */
-			if (vap->iv_state == IEEE80211_S_RUN && misses > 5)
-				(void) iwn_init_sensitivity(sc);
-			if (misses >= vap->iv_bmissthreshold) {
-				IWN_UNLOCK(sc);
-				ieee80211_beacon_miss(ic);
-				IWN_LOCK(sc);
+			if (vap->iv_state == IEEE80211_S_RUN &&
+			    (ic->ic_flags & IEEE80211_F_SCAN) != 0) {
+				if (misses > 5)
+					(void)iwn_init_sensitivity(sc);
+				if (misses >= vap->iv_bmissthreshold) {
+					IWN_UNLOCK(sc);
+					ieee80211_beacon_miss(ic);
+					IWN_LOCK(sc);
+				}
 			}
 			break;
 		}