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ath9k: built-in rate control A-MPDU fix

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commit a8909cfb18 upstream.

This patch attempts to ensure that ath9k's built-in rate control algorithm
does not rely on the value of the ampdu_len and ampdu_ack_len tx status
fields unless the IEEE80211_TX_STAT_AMPDU flag is set.

This patch has not been tested.

Signed-off-by: Björn Smedman <bjorn.smedman@venatech.se>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Björn Smedman
2010-10-10 22:51:54 +02:00
committed by Greg Kroah-Hartman
parent d1ae7bcad8
commit 4311bba007
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/ath/ath9k/rc.c
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@@ -1359,6 +1359,12 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED)
return;
if (!(tx_info->flags & IEEE80211_TX_STAT_AMPDU)) {
tx_info->status.ampdu_ack_len =
(tx_info->flags & IEEE80211_TX_STAT_ACK ? 1 : 0);
tx_info->status.ampdu_len = 1;
}
/*
* If an underrun error is seen assume it as an excessive retry only
* if max frame trigger level has been reached (2 KB for singel stream,