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authorSujith <Sujith.Manoharan@atheros.com>2010-05-06 14:45:47 +0530
committerJohn W. Linville <linville@tuxdriver.com>2010-05-07 14:55:52 -0400
commit9c6dda4e2dfea970a7105e3805f0195bc3079f2f (patch)
tree3b255fefdca205e5f38032236faeb1d7e433a2a8 /drivers/net/wireless/ath/ath9k/htc.h
parent0aaffa9b9699894aab3266195a529baf9f96ac29 (diff)
downloadop-kernel-dev-9c6dda4e2dfea970a7105e3805f0195bc3079f2f.zip
op-kernel-dev-9c6dda4e2dfea970a7105e3805f0195bc3079f2f.tar.gz
ath9k_htc: Fix beaconing in IBSS mode
The current way of managing beaconing in ad-hoc mode has a subtle race - the beacon obtained from mac80211 is freed in the SWBA handler rather than the TX completion routine. But transmission of beacons goes through the normal SKB queue maintained in hif_usb, leading to a situation where __skb_dequeue() in the TX completion handler goes kaput. Fix this by simply getting a beacon from mac80211 for every SWBA and free it in its completion routine. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc.h')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 1ae18bb..ad556aa 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -356,7 +356,6 @@ struct ath9k_htc_priv {
u16 seq_no;
u32 bmiss_cnt;
- struct sk_buff *beacon;
spinlock_t beacon_lock;
bool tx_queues_stop;
@@ -408,13 +407,13 @@ static inline void ath_read_cachesize(struct ath_common *common, int *csz)
void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif);
void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
-void ath9k_htc_beacon_update(struct ath9k_htc_priv *priv,
- struct ieee80211_vif *vif);
void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
enum htc_endpoint_id ep_id);
void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
bool txok);
+void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
+ enum htc_endpoint_id ep_id, bool txok);
void ath9k_htc_station_work(struct work_struct *work);
void ath9k_htc_aggr_work(struct work_struct *work);
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