From 1dc5a84166d83c892cbf192cad58ebdde95d3ac4 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 16 Nov 2008 17:09:25 -0600
Subject: [PATCH] mac80211: Fix pid rate-setting algorithm to allow rate
changes
In commit 9ea2c74 named "mac80211/drivers: rewrite the rate control API",
the meaning of status.rates[i].count was changed from number of retries
to total number of tries. As a result, the pid rate-setting algorithm fails
because every packet appears to have needed a retransmit.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
net/mac80211/rc80211_pid_algo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 96ceb7e86c5c..b16801cde06f 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -256,7 +256,7 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba
if (!(info->flags & IEEE80211_TX_STAT_ACK)) {
spinfo->tx_num_failed += 2;
spinfo->tx_num_xmit++;
- } else if (info->status.rates[0].count) {
+ } else if (info->status.rates[0].count > 1) {
spinfo->tx_num_failed++;
spinfo->tx_num_xmit++;
}