From: Ivo van Doorn <ivdoorn@gmail.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com
Subject: [PATCH 02/06] rt2x00: Optimize unmapping of skbs
Date: Sat, 9 Oct 2010 13:33:43 +0200 [thread overview]
Message-ID: <201010091333.45001.IvDoorn@gmail.com> (raw)
In-Reply-To: <201010091333.17274.IvDoorn@gmail.com>
From: Helmut Schaa <helmut.schaa@googlemail.com>
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>
---
drivers/net/wireless/rt2x00/rt2x00queue.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
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 @@ 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;
--
1.7.2.3
next prev parent reply other threads:[~2010-10-09 11:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-09 11:33 [PATCH 01/06] rt2x00: Shortcut link state updates when not operating as STA Ivo van Doorn
2010-10-09 11:33 ` Ivo van Doorn [this message]
2010-10-09 11:34 ` [PATCH 03/06] rt2x00: Use proper type for rxwi_w2 in rt2800_agc_to_rssi Ivo van Doorn
2010-10-09 11:34 ` [PATCH 04/06] rt2x00: Use unlikely for error case in rt2x00queue_write_tx_frame Ivo van Doorn
2010-10-09 11:35 ` [PATCH 05/06] rt2x00: Remove superfluous initialization of qidx Ivo van Doorn
2010-10-09 11:35 ` [PATCH 06/06] rt2x00: Fix tx status handling in rt2800pci Ivo van Doorn
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