提交 44d4f8d7 编写于 作者: M Michal Simek 提交者: David S. Miller

net: ll_temac: Fix DMA map size bug

DMA allocates skb->len instead of headlen
which is used for DMA.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 343f845b
......@@ -707,8 +707,8 @@ static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
cur_p->app0 |= STS_CTRL_APP0_SOP;
cur_p->len = skb_headlen(skb);
cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, skb->len,
DMA_TO_DEVICE);
cur_p->phys = dma_map_single(ndev->dev.parent, skb->data,
skb_headlen(skb), DMA_TO_DEVICE);
cur_p->app4 = (unsigned long)skb;
for (ii = 0; ii < num_frag; ii++) {
......
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