diff options
| author | Christian Lamparter <chunkeey@web.de> | 2009-07-16 22:03:47 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-24 23:05:21 +0400 |
| commit | 46df10ae44b4488176bae16da0b31541eb0f8f48 (patch) | |
| tree | 0f562347c429808ee8ba0ec151ea77189d5be744 /drivers/net/wireless/p54/txrx.c | |
| parent | 12f49a79cd32d97a11f864a7b67660438ee3e6c8 (diff) | |
| download | linux-46df10ae44b4488176bae16da0b31541eb0f8f48.tar.xz | |
p54: fix beaconing related firmware crash
This patch fixes a firmware crash which can be provoked by changing
operation mode.
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/p54/txrx.c')
| -rw-r--r-- | drivers/net/wireless/p54/txrx.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index 416400c4ad03..0d589d68e547 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -134,9 +134,13 @@ static int p54_assign_address(struct p54_common *priv, struct sk_buff *skb) range = (void *) info->rate_driver_data; range->start_addr = target_addr; range->end_addr = target_addr + len; + data->req_id = cpu_to_le32(target_addr + priv->headroom); + if (IS_DATA_FRAME(skb) && + unlikely(GET_HW_QUEUE(skb) == P54_QUEUE_BEACON)) + priv->beacon_req_id = data->req_id; + __skb_queue_after(&priv->tx_queue, target_skb, skb); spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - data->req_id = cpu_to_le32(target_addr + priv->headroom); return 0; } @@ -209,13 +213,19 @@ static void p54_tx_qos_accounting_free(struct p54_common *priv, struct sk_buff *skb) { if (IS_DATA_FRAME(skb)) { - struct p54_hdr *hdr = (void *) skb->data; - struct p54_tx_data *data = (void *) hdr->data; unsigned long flags; spin_lock_irqsave(&priv->tx_stats_lock, flags); - priv->tx_stats[data->hw_queue].len--; + priv->tx_stats[GET_HW_QUEUE(skb)].len--; spin_unlock_irqrestore(&priv->tx_stats_lock, flags); + + if (unlikely(GET_HW_QUEUE(skb) == P54_QUEUE_BEACON)) { + if (priv->beacon_req_id == GET_REQ_ID(skb)) { + /* this is the active beacon set anymore */ + priv->beacon_req_id = 0; + } + complete(&priv->beacon_comp); + } } p54_wake_queues(priv); } @@ -403,10 +413,6 @@ static void p54_rx_frame_sent(struct p54_common *priv, struct sk_buff *skb) * and we don't want to confuse the mac80211 stack. */ if (unlikely(entry_data->hw_queue < P54_QUEUE_FWSCAN)) { - if (entry_data->hw_queue == P54_QUEUE_BEACON && - hdr->req_id == priv->beacon_req_id) - priv->beacon_req_id = cpu_to_le32(0); - dev_kfree_skb_any(entry); return ; } |