From 546adf294e85ca0dcd9c052294ef35b83a6ab2f4 Mon Sep 17 00:00:00 2001
From: Helmut Schaa <helmut.schaa@googlemail.com>
Date: Sat, 9 Oct 2010 13:33:43 +0200
Subject: [PATCH] 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>
---
drivers/net/wireless/rt2x00/rt2x00queue.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
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;
--
GitLab