From: Helmut Schaa Date: Sat, 9 Oct 2010 11:33:43 +0000 (+0200) Subject: rt2x00: Optimize unmapping of skbs X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=546adf294e85ca0dcd9c052294ef35b83a6ab2f4;p=deliverable%2Flinux.git 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 Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 6d41599a090c..4436ff72c864 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -115,9 +115,7 @@ void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb) 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;