1 files changed, 17 insertions, 18 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 3e019a12df2..40a201e2e15 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -94,17 +94,6 @@ void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
 	erp.difs = bss_conf->use_short_slot ? SHORT_DIFS : DIFS;
 	erp.eifs = bss_conf->use_short_slot ? SHORT_EIFS : EIFS;
 
-	erp.ack_timeout = PLCP + erp.difs + GET_DURATION(ACK_SIZE, 10);
-	erp.ack_consume_time = SIFS + PLCP + GET_DURATION(ACK_SIZE, 10);
-
-	if (bss_conf->use_short_preamble) {
-		erp.ack_timeout += SHORT_PREAMBLE;
-		erp.ack_consume_time += SHORT_PREAMBLE;
-	} else {
-		erp.ack_timeout += PREAMBLE;
-		erp.ack_consume_time += PREAMBLE;
-	}
-
 	erp.basic_rates = bss_conf->basic_rates;
 	erp.beacon_int = bss_conf->beacon_int;
 
@@ -124,24 +113,34 @@ enum antenna rt2x00lib_config_antenna_check(enum antenna current_ant,
 }
 
 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
-			      struct antenna_setup *ant)
+			      struct antenna_setup config)
 {
+	struct link_ant *ant = &rt2x00dev->link.ant;
 	struct antenna_setup *def = &rt2x00dev->default_ant;
 	struct antenna_setup *active = &rt2x00dev->link.ant.active;
 
 	/*
 	 * Failsafe: Make sure we are not sending the
 	 * ANTENNA_SW_DIVERSITY state to the driver.
-	 * If that happes fallback to hardware default,
+	 * If that happens, fallback to hardware defaults,
 	 * or our own default.
+	 * If diversity handling is active for a particular antenna,
+	 * we shouldn't overwrite that antenna.
 	 * The calls to rt2x00lib_config_antenna_check()
 	 * might have caused that we restore back to the already
 	 * active setting. If that has happened we can quit.
 	 */
-	ant->rx = rt2x00lib_config_antenna_check(ant->rx, def->rx);
-	ant->tx = rt2x00lib_config_antenna_check(ant->tx, def->tx);
+	if (!(ant->flags & ANTENNA_RX_DIVERSITY))
+		config.rx = rt2x00lib_config_antenna_check(config.rx, def->rx);
+	else
+		config.rx = active->rx;
+
+	if (!(ant->flags & ANTENNA_TX_DIVERSITY))
+		config.tx = rt2x00lib_config_antenna_check(config.tx, def->tx);
+	else
+		config.tx = active->tx;
 
-	if (ant->rx == active->rx && ant->tx == active->tx)
+	if (config.rx == active->rx && config.tx == active->tx)
 		return;
 
 	/*
@@ -156,11 +155,11 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
 	 * The latter is required since we need to recalibrate the
 	 * noise-sensitivity ratio for the new setup.
 	 */
-	rt2x00dev->ops->lib->config_ant(rt2x00dev, ant);
+	rt2x00dev->ops->lib->config_ant(rt2x00dev, &config);
 
 	rt2x00link_reset_tuner(rt2x00dev, true);
 
-	memcpy(active, ant, sizeof(*ant));
+	memcpy(active, &config, sizeof(config));
 
 	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);