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Commit a8909cfb authored by Björn Smedman's avatar Björn Smedman Committed by John W. Linville
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ath9k: built-in rate control A-MPDU fix 



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.

Cc: <stable@kernel.org>
Signed-off-by: default avatarBjörn Smedman <bjorn.smedman@venatech.se>
Acked-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent ebd02287

drivers/net/wireless/ath/ath9k/rc.c

+6 −0
Original line number Diff line number Diff line
@@ -1375,6 +1375,12 @@ 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,