linux-kernel - [ 13/74] iwlwifi: mvm: take the seqno from packet if transmit failed

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Message-Id: <20130827010427.365794941@linuxfoundation.org>
Date:	Mon, 26 Aug 2013 18:08:11 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Johannes Berg <johannes.berg@...el.com>
Subject: [ 13/74] iwlwifi: mvm: take the seqno from packet if transmit failed

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Emmanuel Grumbach <emmanuel.grumbach@...el.com>

commit ebea2f32e814445f94f9e087b646f1cf4d55fa5a upstream.

The fw is unreliable in all the cases in which the packet
wasn't sent.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/iwlwifi/mvm/tx.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -610,8 +610,8 @@ static void iwl_mvm_rx_tx_cmd_single(str
 		    !(info->flags & IEEE80211_TX_STAT_ACK))
 			info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
 
-		/* W/A FW bug: seq_ctl is wrong when the queue is flushed */
-		if (status == TX_STATUS_FAIL_FIFO_FLUSHED) {
+		/* W/A FW bug: seq_ctl is wrong when the status isn't success */
+		if (status != TX_STATUS_SUCCESS) {
 			struct ieee80211_hdr *hdr = (void *)skb->data;
 			seq_ctl = le16_to_cpu(hdr->seq_ctrl);
 		}


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