diff options
| author | Ivo van Doorn <ivdoorn@gmail.com> | 2008-01-06 23:38:34 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:09:22 -0800 |
| commit | 1230cb83f46731ca4eaa57c480788ed3c9d05935 (patch) | |
| tree | 60be0e3211fafdd2d3afba7aa6527badb2e29790 /drivers/net/wireless/rt2x00/rt2x00mac.c | |
| parent | 3e34c6dcb36bbd5294cae2654c32e24b9787da3a (diff) | |
rt2x00: Always call ieee80211_stop_queue() when return NETDEV_TX_BUSY
Apparently it was possible that ieee80211_stop_queue() was not full while
NETDEV_TX_BUSY was being reported back. I think that is what causing the WARN_ON().
This moves all calls to ieee80211_stop_queue() in rt2x00mac.c where it is easier
to determine if the queue should be halted.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00mac.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00mac.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index bae444292d6..1ab2fb6c38d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -84,7 +84,7 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, */ if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) { ieee80211_stop_queues(hw); - return 0; + return NETDEV_TX_OK; } /* @@ -110,15 +110,24 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, if (!is_rts_frame(frame_control) && !is_cts_frame(frame_control) && (control->flags & (IEEE80211_TXCTL_USE_RTS_CTS | IEEE80211_TXCTL_USE_CTS_PROTECT))) { - if (rt2x00_ring_free(ring) <= 1) + if (rt2x00_ring_free(ring) <= 1) { + ieee80211_stop_queue(rt2x00dev->hw, control->queue); return NETDEV_TX_BUSY; + } - if (rt2x00mac_tx_rts_cts(rt2x00dev, ring, skb, control)) + if (rt2x00mac_tx_rts_cts(rt2x00dev, ring, skb, control)) { + ieee80211_stop_queue(rt2x00dev->hw, control->queue); return NETDEV_TX_BUSY; + } } - if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control)) + if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control)) { + ieee80211_stop_queue(rt2x00dev->hw, control->queue); return NETDEV_TX_BUSY; + } + + if (rt2x00_ring_full(ring)) + ieee80211_stop_queue(rt2x00dev->hw, control->queue); if (rt2x00dev->ops->lib->kick_tx_queue) rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue); |