diff options
| author | Kejian Yan <yankejian@huawei.com> | 2017-05-24 01:53:41 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-17 04:41:50 (GMT) |
| commit | bed8b8627a3339f30c62534581deb8a37c7b8b8a (patch) | |
| tree | df356921ca9f9a51240767f695187fc1dcc06e1a /drivers/net/ethernet | |
| parent | 008798746e6e1d68a24674690e355b5619711fc4 (diff) | |
| download | linux-bed8b8627a3339f30c62534581deb8a37c7b8b8a.tar.xz | |
net: hns: Fix the device being used for dma mapping during TX
[ Upstream commit b85ea006b6bebb692628f11882af41c3e12e1e09 ]
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: Kejian Yan <yankejian@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index dff7b60..c06845b 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -304,8 +304,8 @@ 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; |