[PATCH 07/11] net: ll_temac: Fix DMA map size bug
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STALE5115d
From: Michal Simek <monstr@monstr.eu>
Date: 2012-10-04 18:15:21
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Subsystem:
networking drivers, the rest, xilinx ll temac ethernet driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
DMA allocates skb->len instead of headlen which is used for DMA. The same fix was applied to the axienet driver. Signed-off-by: Michal Simek <monstr@monstr.eu> CC: Anirudha Sarangi <redacted> CC: John Linn <redacted> CC: Grant Likely <redacted> CC: Rob Herring <redacted> CC: David S. Miller <davem@davemloft.net> --- drivers/net/ethernet/xilinx/ll_temac_main.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 482b572..8786d92 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c@@ -710,8 +710,8 @@ 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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1.7.0.4