rt2x00: use correct headroom for transmission

commit b59a52f12e483b79e7d32da7ec30dcf3b2e0210b upstream.

Use rt2x00dev->ops->extra_tx_headroom, not rt2x00dev->hw->extra_tx_headroom
in the tx code, as the later may include other headroom not to be used in
the chipset driver.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 577029efe320d1e01bc847b7120fb088908f7a31..2ec9c14f21c3983ee73234a552a09ac36f236358 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -103,7 +103,7 @@ void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
         * is also mapped to the DMA so it can be used for transfering
         * additional descriptor information to the hardware.
         */
-       skb_push(skb, rt2x00dev->hw->extra_tx_headroom);
+       skb_push(skb, rt2x00dev->ops->extra_tx_headroom);
 
        skbdesc->skb_dma =
            dma_map_single(rt2x00dev->dev, skb->data, skb->len, DMA_TO_DEVICE);
@@ -111,7 +111,7 @@ void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
        /*
         * Restore data pointer to original location again.
         */
-       skb_pull(skb, rt2x00dev->hw->extra_tx_headroom);
+       skb_pull(skb, rt2x00dev->ops->extra_tx_headroom);
 
        skbdesc->flags |= SKBDESC_DMA_MAPPED_TX;
 }
@@ -133,7 +133,7 @@ void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
                 * by the driver, but it was actually mapped to DMA.
                 */
                dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma,
-                                skb->len + rt2x00dev->hw->extra_tx_headroom,
+                                skb->len + rt2x00dev->ops->extra_tx_headroom,
                                 DMA_TO_DEVICE);
                skbdesc->flags &= ~SKBDESC_DMA_MAPPED_TX;
        }