linux-kernel - [34-longterm 054/247] p54: fix sequence no. accounting off-by-one error

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Message-Id: <1308850146-15061-13-git-send-email-paul.gortmaker@windriver.com>
Date:	Thu, 23 Jun 2011 13:25:53 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	stable@...nel.org, linux-kernel@...r.kernel.org
Cc:	stable-review@...nel.org,
	Christian Lamparter <chunkeey@...glemail.com>,
	"John W. Linville" <linville@...driver.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [34-longterm 054/247] p54: fix sequence no. accounting off-by-one error

From: Christian Lamparter <chunkeey@...glemail.com>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit 3b5c5827d1f80ad8ae844a8b1183f59ddb90fe25 upstream.

P54_HDR_FLAG_DATA_OUT_SEQNR is meant to tell the
firmware that "the frame's sequence number has
already been set by the application."

Whereas IEEE80211_TX_CTL_ASSIGN_SEQ is set for
frames which lack a valid sequence number and
either the driver or firmware has to assign one.

Yup, it's the exact opposite!

Signed-off-by: Christian Lamparter <chunkeey@...glemail.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/net/wireless/p54/txrx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index 7398c98..db89d65 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -617,7 +617,7 @@ static void p54_tx_80211_header(struct p54_common *priv, struct sk_buff *skb,
 	else
 		*burst_possible = false;
 
-	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
+	if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
 		*flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
 
 	if (info->flags & IEEE80211_TX_CTL_PSPOLL_RESPONSE)
-- 
1.7.4.4

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