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net: hisilicon: Fix dma_map_single failed on arm64

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[ Upstream commit 96a50c0d90 ]

On the arm64 platform, executing "ifconfig eth0 up" will fail,
returning "ifconfig: SIOCSIFFLAGS: Input/output error."

ndev->dev is not initialized, dma_map_single->get_dma_ops->
dummy_dma_ops->__dummy_map_page will return DMA_ERROR_CODE
directly, so when we use dma_map_single, the first parameter
is to use the device of platform_device.

Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiangfeng Xiao
2019-08-03 20:31:41 +08:00
committed by Chris
parent 956f126278
commit e933e9968e
1 changed files with 11 additions and 9 deletions
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20
drivers/net/ethernet/hisilicon/hip04_eth.c
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@@ -157,6 +157,7 @@ struct hip04_priv {
unsigned int reg_inten;
struct napi_struct napi;
struct device *dev;
struct net_device *ndev;
struct tx_desc *tx_desc;
@@ -387,7 +388,7 @@ static int hip04_tx_reclaim(struct net_device *ndev, bool force)
}
if (priv->tx_phys[tx_tail]) {
dma_unmap_single(&ndev->dev, priv->tx_phys[tx_tail],
dma_unmap_single(priv->dev, priv->tx_phys[tx_tail],
priv->tx_skb[tx_tail]->len,
DMA_TO_DEVICE);
priv->tx_phys[tx_tail] = 0;
@@ -437,8 +438,8 @@ static int hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
return NETDEV_TX_BUSY;
}
phys = dma_map_single(&ndev->dev, skb->data, skb->len, DMA_TO_DEVICE);
if (dma_mapping_error(&ndev->dev, phys)) {
phys = dma_map_single(priv->dev, skb->data, skb->len, DMA_TO_DEVICE);
if (dma_mapping_error(priv->dev, phys)) {
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
@@ -508,7 +509,7 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
goto refill;
}
dma_unmap_single(&ndev->dev, priv->rx_phys[priv->rx_head],
dma_unmap_single(priv->dev, priv->rx_phys[priv->rx_head],
RX_BUF_SIZE, DMA_FROM_DEVICE);
priv->rx_phys[priv->rx_head] = 0;
@@ -537,9 +538,9 @@ refill:
buf = netdev_alloc_frag(priv->rx_buf_size);
if (!buf)
goto done;
phys = dma_map_single(&ndev->dev, buf,
phys = dma_map_single(priv->dev, buf,
RX_BUF_SIZE, DMA_FROM_DEVICE);
if (dma_mapping_error(&ndev->dev, phys))
if (dma_mapping_error(priv->dev, phys))
goto done;
priv->rx_buf[priv->rx_head] = buf;
priv->rx_phys[priv->rx_head] = phys;
@@ -642,9 +643,9 @@ static int hip04_mac_open(struct net_device *ndev)
for (i = 0; i < RX_DESC_NUM; i++) {
dma_addr_t phys;
phys = dma_map_single(&ndev->dev, priv->rx_buf[i],
phys = dma_map_single(priv->dev, priv->rx_buf[i],
RX_BUF_SIZE, DMA_FROM_DEVICE);
if (dma_mapping_error(&ndev->dev, phys))
if (dma_mapping_error(priv->dev, phys))
return -EIO;
priv->rx_phys[i] = phys;
@@ -678,7 +679,7 @@ static int hip04_mac_stop(struct net_device *ndev)
for (i = 0; i < RX_DESC_NUM; i++) {
if (priv->rx_phys[i]) {
dma_unmap_single(&ndev->dev, priv->rx_phys[i],
dma_unmap_single(priv->dev, priv->rx_phys[i],
RX_BUF_SIZE, DMA_FROM_DEVICE);
priv->rx_phys[i] = 0;
}
@@ -829,6 +830,7 @@ static int hip04_mac_probe(struct platform_device *pdev)
return -ENOMEM;
priv = netdev_priv(ndev);
priv->dev = d;
priv->ndev = ndev;
platform_set_drvdata(pdev, ndev);