From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 15 Mar 2013 22:24:36 +0000 (+0000)
Subject: ath9k: add a fix to reduce the number of spurious tx hang detections
X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=commitdiff_plain;hb=3c7538d73b9cd56cc89ab409bbc55d381e535b81

ath9k: add a fix to reduce the number of spurious tx hang detections

Backport of r36040

SVN-Revision: 36052
---

diff --git a/package/mac80211/patches/300-pending_work.patch b/package/mac80211/patches/300-pending_work.patch
index 7cc4569673..ad9c5004a8 100644
--- a/package/mac80211/patches/300-pending_work.patch
+++ b/package/mac80211/patches/300-pending_work.patch
@@ -2071,3 +2071,40 @@
  #define ATH_RSSI_LPF_LEN 		10
  #define RSSI_LPF_THRESHOLD		-20
  #define ATH_RSSI_EP_MULTIPLIER     (1<<7)
+--- a/drivers/net/wireless/ath/ath9k/link.c
++++ b/drivers/net/wireless/ath/ath9k/link.c
+@@ -31,21 +31,21 @@ void ath_tx_complete_poll_work(struct wo
+ 	sc->tx_complete_poll_work_seen++;
+ #endif
+ 
+-	for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
+-		if (ATH_TXQ_SETUP(sc, i)) {
+-			txq = &sc->tx.txq[i];
+-			ath_txq_lock(sc, txq);
+-			if (txq->axq_depth) {
+-				if (txq->axq_tx_inprogress) {
+-					needreset = true;
+-					ath_txq_unlock(sc, txq);
+-					break;
+-				} else {
+-					txq->axq_tx_inprogress = true;
+-				}
++	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
++		txq = sc->tx.txq_map[i];
++
++		ath_txq_lock(sc, txq);
++		if (txq->axq_depth) {
++			if (txq->axq_tx_inprogress) {
++				needreset = true;
++				ath_txq_unlock(sc, txq);
++				break;
++			} else {
++				txq->axq_tx_inprogress = true;
+ 			}
+-			ath_txq_unlock_complete(sc, txq);
+ 		}
++		ath_txq_unlock_complete(sc, txq);
++	}
+ 
+ 	if (needreset) {
+ 		ath_dbg(ath9k_hw_common(sc->sc_ah), RESET,