Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

Conflicts:
	drivers/net/wireless/libertas/host.h

1 files changed, 41 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index f91637147116..5097fe0f9f51 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -404,6 +404,46 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
         rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate);
 }
 
+static int rt2x00queue_write_tx_data(struct queue_entry *entry,
+                                     struct txentry_desc *txdesc)
+{
+        struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+
+        /*
+         * This should not happen, we already checked the entry
+         * was ours. When the hardware disagrees there has been
+         * a queue corruption!
+         */
+        if (unlikely(rt2x00dev->ops->lib->get_entry_state &&
+                     rt2x00dev->ops->lib->get_entry_state(entry))) {
+                ERROR(rt2x00dev,
+                      "Corrupt queue %d, accessing entry which is not ours.\n"
+                      "Please file bug report to %s.\n",
+                      entry->queue->qid, DRV_PROJECT);
+                return -EINVAL;
+        }
+
+        /*
+         * Add the requested extra tx headroom in front of the skb.
+         */
+        skb_push(entry->skb, rt2x00dev->ops->extra_tx_headroom);
+        memset(entry->skb->data, 0, rt2x00dev->ops->extra_tx_headroom);
+
+        /*
+         * Call the driver's write_tx_data function, if it exists.
+         */
+        if (rt2x00dev->ops->lib->write_tx_data)
+                rt2x00dev->ops->lib->write_tx_data(entry, txdesc);
+
+        /*
+         * Map the skb to DMA.
+         */
+        if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags))
+                rt2x00queue_map_txskb(rt2x00dev, entry->skb);
+
+        return 0;
+}
+
 static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
                                             struct txentry_desc *txdesc)
 {
@@ -515,8 +555,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
          * call failed. Since we always return NETDEV_TX_OK to mac80211,
          * this frame will simply be dropped.
          */
-        if (unlikely(queue->rt2x00dev->ops->lib->write_tx_data(entry,
-                                                               &txdesc))) {
+        if (unlikely(rt2x00queue_write_tx_data(entry, &txdesc))) {
                 clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
                 entry->skb = NULL;
                 return -EIO;