commit 05253c93feb40901d80a0d6f239a0bc78860c679
author Ivo van Doorn <ivdoorn@gmail.com> Mon Feb 25 23:15:08 2008 +0100
committer John W. Linville <linville@tuxdriver.com> Thu Feb 28 09:13:09 2008 -0500
tree b83242d123469de89bdc3f22f2f2232f4e482586
parent 61667d8d5bf3c3ee09474069eaf4b93a4755ff8b

rt2x00: Don't switch to antenna with low rssi

When rssi_a > rssi_b is true and the current antenna
was already antenna A, then rt2x00 incorrectly jumped
to antenna B.

Also don't configure the antenna when there has been
no change in the antenna setup.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00dev.c

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 00f5f0d..7294c752 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -260,19 +260,11 @@
 	if (sample_a == sample_b)
 		return;
 
-	if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) {
-		if (sample_a > sample_b && rx == ANTENNA_B)
-			rx = ANTENNA_A;
-		else if (rx == ANTENNA_A)
-			rx = ANTENNA_B;
-	}
+	if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY)
+		rx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
 
-	if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY) {
-		if (sample_a > sample_b && tx == ANTENNA_B)
-			tx = ANTENNA_A;
-		else if (tx == ANTENNA_A)
-			tx = ANTENNA_B;
-	}
+	if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)
+		tx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
 
 	rt2x00lib_config_antenna(rt2x00dev, rx, tx);
 }
@@ -327,7 +319,7 @@
 
 	if (!(rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) &&
 	    !(rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)) {
-		rt2x00dev->link.ant.flags &= ~ANTENNA_MODE_SAMPLE;
+		rt2x00dev->link.ant.flags = 0;
 		return;
 	}