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Commit b85ea006 authored by Kejian Yan's avatar Kejian Yan Committed by David S. Miller
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net: hns: Fix the device being used for dma mapping during TX 



This patch fixes the device being used to DMA map skb->data.
Erroneous device assignment causes the crash when SMMU is enabled.
This happens during TX since buffer gets DMA mapped with device
correspondign to net_device and gets unmapped using the device
related to DSAF.

Signed-off-by: default avatarKejian Yan <yankejian@huawei.com>
Reviewed-by: default avatarYisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: default avatarSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bb1a6197

drivers/net/ethernet/hisilicon/hns/hns_enet.c

+1 −1
Original line number Diff line number Diff line
@@ -305,8 +305,8 @@ int hns_nic_net_xmit_hw(struct net_device *ndev, 
			struct hns_nic_ring_data *ring_data)

{

	struct hns_nic_priv *priv = netdev_priv(ndev);

	struct device *dev = priv->dev;

	struct hnae_ring *ring = ring_data->ring;

	struct device *dev = ring_to_dev(ring);

	struct netdev_queue *dev_queue;

	struct skb_frag_struct *frag;

	int buf_num;