From patchwork Thu Oct 4 18:14:53 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [07/11] net: ll_temac: Fix DMA map size bug Date: Thu, 04 Oct 2012 08:14:53 -0000 From: Michal Simek X-Patchwork-Id: 189233 Message-Id: <1349374497-9540-7-git-send-email-monstr@monstr.eu> To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Michal Simek , Anirudha Sarangi , John Linn , Grant Likely , Rob Herring , "David S. Miller" 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 CC: Anirudha Sarangi CC: John Linn CC: Grant Likely CC: Rob Herring CC: David S. Miller --- 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++) {