---

yaml
---
r: 247670
b: refs/heads/master
c: b85c573
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8afbcc8bfb549a522298fa4a31ee5155c2b5f7a0
+refs/heads/master: b85c5734f00886ee0f33ef4d0038ed9a278eefce

trunk/drivers/net/wireless/ath/ath9k/recv.c

@@ -28,6 +28,33 @@ static inline bool ath_is_alt_ant_ratio_better(int alt_ratio, int maxdelta,
 		(alt_rssi_avg > main_rssi_avg + mindelta)) && (pkt_count > 50);
 }
 
+static inline bool ath_ant_div_comb_alt_check(u8 div_group, int alt_ratio,
+					int curr_main_set, int curr_alt_set,
+					int alt_rssi_avg, int main_rssi_avg)
+{
+	bool result = false;
+	switch (div_group) {
+	case 0:
+		if (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)
+			result = true;
+		break;
+	case 1:
+		if ((((curr_main_set == ATH_ANT_DIV_COMB_LNA2) &&
+			(curr_alt_set == ATH_ANT_DIV_COMB_LNA1) &&
+				(alt_rssi_avg >= (main_rssi_avg - 5))) ||
+			((curr_main_set == ATH_ANT_DIV_COMB_LNA1) &&
+			(curr_alt_set == ATH_ANT_DIV_COMB_LNA2) &&
+				(alt_rssi_avg >= (main_rssi_avg - 2)))) &&
+							(alt_rssi_avg >= 4))
+			result = true;
+		else
+			result = false;
+		break;
+	}
+
+	return result;
+}
+
 static inline bool ath9k_check_auto_sleep(struct ath_softc *sc)
 {
 	return sc->ps_enabled &&
@@ -1413,7 +1440,9 @@ static void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs)
 	}
 
 	if (!antcomb->scan) {
-		if (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO) {
+		if (ath_ant_div_comb_alt_check(div_ant_conf.div_group,
+					alt_ratio, curr_main_set, curr_alt_set,
+					alt_rssi_avg, main_rssi_avg)) {
 			if (curr_alt_set == ATH_ANT_DIV_COMB_LNA2) {
 				/* Switch main and alt LNA */
 				div_ant_conf.main_lna_conf =