rt2x00: Optimize unmapping of skbs
Since no skb will be mapped for RX and TX at the same time we can
simply shortcut the check for SKBDESC_DMA_MAPPED_TX.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 6d41599..4436ff7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -115,9 +115,7 @@
dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, skb->len,
DMA_FROM_DEVICE);
skbdesc->flags &= ~SKBDESC_DMA_MAPPED_RX;
- }
-
- if (skbdesc->flags & SKBDESC_DMA_MAPPED_TX) {
+ } else if (skbdesc->flags & SKBDESC_DMA_MAPPED_TX) {
dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, skb->len,
DMA_TO_DEVICE);
skbdesc->flags &= ~SKBDESC_DMA_MAPPED_TX;