From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Simon Wunderlich , Felix Fietkau , "John W. Linville" Subject: [PATCH 3.12 051/118] ath9k: fix duration calculation for non-aggregated packets Date: Wed, 18 Dec 2013 13:11:28 -0800 Message-Id: <20131218211220.913915648@linuxfoundation.org> In-Reply-To: <20131218211219.461663463@linuxfoundation.org> References: <20131218211219.461663463@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau commit bbf807bc0697e577c137a5fffb30fca7c6a45da1 upstream. When not aggregating packets, fi->framelen should be passed in as length to calculate the duration. Before the tx path rework, ath_tx_fill_desc was called for either one aggregate, or one single frame, with the length of the packet or the aggregate as a parameter. After the rework, ath_tx_sched_aggr can pass a burst of single frames to ath_tx_fill_desc and sets len=0. Fix broken duration calculation by overriding the length in ath_tx_fill_desc before passing it to ath_buf_set_rate. Reported-by: Simon Wunderlich Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/ath9k/xmit.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1275,6 +1275,10 @@ static void ath_tx_fill_desc(struct ath_ if (!rts_thresh || (len > rts_thresh)) rts = true; } + + if (!aggr) + len = fi->framelen; + ath_buf_set_rate(sc, bf, &info, len, rts); }