Justin P. Mattock wrote:

yeah this works:

eading symbols from 
/home/kernel/linux-next/drivers/net/wireless/ath/ath9k/ath9k.o...done.
(gdb) l *(ath_tx_start+0x284)
0xcad4 is in ath_tx_start (drivers/net/wireless/ath/ath9k/xmit.c:1878).
1873			ieee80211_is_data_qos(hdr->frame_control)) {
1874			tidno = ieee80211_get_qos_ctl(hdr)[0] &
1875				IEEE80211_QOS_CTL_TID_MASK;
1876			tid = ATH_AN_2_TID(txctl->an, tidno);
1877	
1878			WARN_ON(tid->ac->txq != txctl->txq);
1879		}
1880	
1881		if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
1882			/*
(gdb)

Can you try this patch ?

From: Sujith Manoharan <redacted>
Date: Tue, 20 Mar 2012 13:51:26 +0530
Subject: [PATCH] ath9k: Use HW HT capabilites properly

The commit "ath9k: Remove aggregation flags" changed how
nodes were being initialized. Use the HW HT cap bits
to initialize/de-initialize nodes, else we would be
accessing an uninitialized entry during a suspend/resume cycle,
resulting in a panic.

Reported-by: Justin P. Mattock <redacted>
Signed-off-by: Sujith Manoharan <redacted>
---
 drivers/net/wireless/ath/ath9k/main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 3879485..215eb25 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c

@@ -640,7 +640,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
 	an->sta = sta;
 	an->vif = vif;
 
-	if (sta->ht_cap.ht_supported) {
+	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
 		ath_tx_node_init(sc, an);
 		an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
 				     sta->ht_cap.ampdu_factor);

@@ -659,7 +659,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
 	an->sta = NULL;
 #endif
 
-	if (sta->ht_cap.ht_supported)
+	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
 		ath_tx_node_cleanup(sc, an);
 }
 

-- 
1.7.9.4

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html