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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-11-24 10:01:16 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-11-24 10:01:16 +0000
commit37b545f00f84de7544744792a246cd9ae7917675 (patch)
treef5782facd1236f3d094d3756cf91514df79b8649 /target
parentc5233949252af88f05848e9b4075fb19822c4ee6 (diff)
ramips: DMA map the correct RX skb size
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
Diffstat (limited to 'target')
-rw-r--r--target/linux/ramips/files/drivers/net/ramips.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index e3c4f13d46..1f3c35aa9d 100644
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -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);
}