Use this spinlock to protect the vif's data instead of
one from ath6kl.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 1 +
drivers/net/wireless/ath/ath6kl/core.h | 2 ++
drivers/net/wireless/ath/ath6kl/main.c | 13 ++++---------
drivers/net/wireless/ath/ath6kl/txrx.c | 8 ++++----
4 files changed, 11 insertions(+), 13 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index d42cb3e..5eadcaa 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2076,6 +2076,7 @@ static int ath6kl_init_if_data(struct ath6kl_vif *vif)
setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
(unsigned long) vif->ndev);
set_bit(WMM_ENABLED, &vif->flags);
+ spin_lock_init(&vif->if_lock);
return 0;
}
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index 747e5a7..2c64652 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -400,6 +400,8 @@ struct ath6kl_vif {
struct wireless_dev wdev;
struct net_device *ndev;
struct ath6kl *ar;
+ /* Lock to protect vif specific net_stats and flags */
+ spinlock_t if_lock;
u8 fw_vif_idx;
unsigned long flags;
int ssid_len;
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index 6bf9402..ca86ed3 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -989,11 +989,11 @@ void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
netif_wake_queue(vif->ndev);
/* Update connect & link status atomically */
- spin_lock_bh(&ar->lock);
+ spin_lock_bh(&vif->if_lock);
set_bit(CONNECTED, &vif->flags);
clear_bit(CONNECT_PEND, &vif->flags);
netif_carrier_on(vif->ndev);
- spin_unlock_bh(&ar->lock);
+ spin_unlock_bh(&vif->if_lock);
aggr_reset_state(vif->aggr_cntxt);
vif->reconnect_flag = 0;
@@ -1345,10 +1345,10 @@ void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
}
/* update connect & link status atomically */
- spin_lock_bh(&ar->lock);
+ spin_lock_bh(&vif->if_lock);
clear_bit(CONNECTED, &vif->flags);
netif_carrier_off(vif->ndev);
- spin_unlock_bh(&ar->lock);
+ spin_unlock_bh(&vif->if_lock);
if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
vif->reconnect_flag = 0;
@@ -1365,11 +1365,8 @@ void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
static int ath6kl_open(struct net_device *dev)
{
- struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
- spin_lock_bh(&ar->lock);
-
set_bit(WLAN_ENABLED, &vif->flags);
if (test_bit(CONNECTED, &vif->flags)) {
@@ -1378,8 +1375,6 @@ static int ath6kl_open(struct net_device *dev)
} else
netif_carrier_off(dev);
- spin_unlock_bh(&ar->lock);
-
return 0;
}
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index e4a6d8f..ff288da 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -475,9 +475,9 @@ enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
return HTC_SEND_FULL_DROP;
stop_net_queues:
- spin_lock_bh(&ar->lock);
+ spin_lock_bh(&vif->if_lock);
set_bit(NETQ_STOPPED, &vif->flags);
- spin_unlock_bh(&ar->lock);
+ spin_unlock_bh(&vif->if_lock);
netif_stop_queue(vif->ndev);
return HTC_SEND_FULL_KEEP;
@@ -1103,12 +1103,12 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
* Take lock to protect buffer counts and adaptive power throughput
* state.
*/
- spin_lock_bh(&ar->lock);
+ spin_lock_bh(&vif->if_lock);
vif->net_stats.rx_packets++;
vif->net_stats.rx_bytes += packet->act_len;
- spin_unlock_bh(&ar->lock);
+ spin_unlock_bh(&vif->if_lock);
ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, __func__, "rx ",
--
1.7.0.4
--
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