--- /dev/null
+--- a/ath/if_ath.c
++++ b/ath/if_ath.c
+@@ -5344,27 +5344,6 @@ ath_beacon_send(struct ath_softc *sc, in
+ } else if ((sc->sc_updateslot == COMMIT) && (sc->sc_slotupdate == slot))
+ ath_setslottime(sc); /* commit change to hardware */
+
+- if ((!sc->sc_stagbeacons || slot == 0) && (!sc->sc_diversity)) {
+- unsigned int otherant;
+- /*
+- * Check recent per-antenna transmit statistics and flip
+- * the default rx antenna if noticeably more frames went out
+- * on the non-default antenna. Only do this if rx diversity
+- * is off.
+- * XXX assumes 2 antennae
+- */
+- otherant = sc->sc_defant & 1 ? 2 : 1;
+- if (sc->sc_ant_tx[otherant] > sc->sc_ant_tx[sc->sc_defant] +
+- ATH_ANTENNA_DIFF) {
+- DPRINTF(sc, ATH_DEBUG_BEACON,
+- "Flip default antenna to %u, %u > %u\n",
+- otherant, sc->sc_ant_tx[otherant],
+- sc->sc_ant_tx[sc->sc_defant]);
+- ath_setdefantenna(sc, otherant);
+- }
+- sc->sc_ant_tx[1] = sc->sc_ant_tx[2] = 0;
+- }
+-
+ if (bfaddr != 0) {
+ /*
+ * Stop any current DMA and put the new frame(s) on the queue.