rt2x00: Fix skbdesc->data_len initialization

skbdesc->data_len was not initialized correctly
in rt2x00pci, rt2x00usb, rt2500usb and rt73usb.

The value was set to queue->data_size which
means that the incorrect frame size was pased
to the upper layers.

Correctly base the value on either the skb->len,
or the rx frame size passed to the driver by the
device.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2500usb.c

@@ -1149,7 +1149,7 @@ static void rt2500usb_fill_rxdone(struct queue_entry *entry,
 	 * Set descriptor pointer.
 	 */
 	skbdesc->data = entry->skb->data;
-	skbdesc->data_len = entry->queue->data_size;
+	skbdesc->data_len = rxdesc->size;
 	skbdesc->desc = entry->skb->data + rxdesc->size;
 	skbdesc->desc_len = entry->queue->desc_size;
 

drivers/net/wireless/rt2x00/rt2x00pci.c

@@ -63,7 +63,7 @@ int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
 	skbdesc = get_skb_frame_desc(skb);
 	memset(skbdesc, 0, sizeof(*skbdesc));
 	skbdesc->data = skb->data;
-	skbdesc->data_len = queue->data_size;
+	skbdesc->data_len = skb->len;
 	skbdesc->desc = priv_tx->desc;
 	skbdesc->desc_len = queue->desc_size;
 	skbdesc->entry = entry;
@@ -131,7 +131,7 @@ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
 		skbdesc = get_skb_frame_desc(entry->skb);
 		memset(skbdesc, 0, sizeof(*skbdesc));
 		skbdesc->data = entry->skb->data;
-		skbdesc->data_len = queue->data_size;
+		skbdesc->data_len = entry->skb->len;
 		skbdesc->desc = priv_rx->desc;
 		skbdesc->desc_len = queue->desc_size;
 		skbdesc->entry = entry;

drivers/net/wireless/rt2x00/rt2x00usb.c

@@ -254,7 +254,7 @@ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
 	skbdesc = get_skb_frame_desc(skb);
 	memset(skbdesc, 0, sizeof(*skbdesc));
 	skbdesc->data = skb->data + queue->desc_size;
-	skbdesc->data_len = queue->data_size;
+	skbdesc->data_len = skb->len - queue->desc_size;
 	skbdesc->desc = skb->data;
 	skbdesc->desc_len = queue->desc_size;
 	skbdesc->entry = entry;

drivers/net/wireless/rt2x00/rt73usb.c

@@ -1399,7 +1399,7 @@ static void rt73usb_fill_rxdone(struct queue_entry *entry,
 	 * Set descriptor and data pointer.
 	 */
 	skbdesc->data = entry->skb->data + entry->queue->desc_size;
-	skbdesc->data_len = entry->queue->data_size;
+	skbdesc->data_len = rxdesc->size;
 	skbdesc->desc = entry->skb->data;
 	skbdesc->desc_len = entry->queue->desc_size;