qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-07-02 23:09:30 +03:00
Code

ramips: DMA map the correct RX skb size

Browse Source 
The skb_reserve call prior to DMA mapping the RX skb reduced the skb
data len by 2. To not allow DMA to write behind the skb we should pass
the correct skb data len to the device.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24123 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2010-11-24 10:01:16 +00:00
parent c523394925
commit 37b545f00f
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
target/linux/ramips/files/drivers/net/ramips.c
View File

@ -177,7 +177,7 @@ ramips_alloc_dma(struct raeth_priv *re)
skb_reserve(new_skb, 2);
re->rx[i].rxd1 = dma_map_single(NULL,
new_skb->data,
MAX_RX_LENGTH + 2,
MAX_RX_LENGTH,
DMA_FROM_DEVICE);
re->rx[i].rxd2 |= RX_DMA_LSO;
re->rx_skb[i] = new_skb;
@ -288,7 +288,7 @@ ramips_eth_rx_hw(unsigned long ptr)
skb_reserve(new_skb, 2);
priv->rx[rx].rxd1 = dma_map_single(NULL,
new_skb->data,
MAX_RX_LENGTH + 2,
MAX_RX_LENGTH,
DMA_FROM_DEVICE);
}