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authorChristoph Hellwig <hch@lst.de>2019-02-11 14:20:02 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-12 12:09:23 -0500
commit5dac33ad6f0d1dbc20736fa13d833250e7f12a26 (patch)
tree564272738ce1dde33d3c00176a69687bf0ce6138 /drivers/net/ethernet/moxa
parentpxa168_eth: pass struct device to DMA API functions (diff)
downloadlinux-dev-5dac33ad6f0d1dbc20736fa13d833250e7f12a26.tar.xz
linux-dev-5dac33ad6f0d1dbc20736fa13d833250e7f12a26.zip
moxart_ether: pass struct device to DMA API functions
The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/moxa')
-rw-r--r--drivers/net/ethernet/moxa/moxart_ether.c11
-rw-r--r--drivers/net/ethernet/moxa/moxart_ether.h1
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index b34055ac476f..00dec0ffb11b 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -81,11 +81,13 @@ static void moxart_mac_free_memory(struct net_device *ndev)
priv->rx_buf_size, DMA_FROM_DEVICE);
if (priv->tx_desc_base)
- dma_free_coherent(NULL, TX_REG_DESC_SIZE * TX_DESC_NUM,
+ dma_free_coherent(&priv->pdev->dev,
+ TX_REG_DESC_SIZE * TX_DESC_NUM,
priv->tx_desc_base, priv->tx_base);
if (priv->rx_desc_base)
- dma_free_coherent(NULL, RX_REG_DESC_SIZE * RX_DESC_NUM,
+ dma_free_coherent(&priv->pdev->dev,
+ RX_REG_DESC_SIZE * RX_DESC_NUM,
priv->rx_desc_base, priv->rx_base);
kfree(priv->tx_buf_base);
@@ -476,6 +478,7 @@ static int moxart_mac_probe(struct platform_device *pdev)
priv = netdev_priv(ndev);
priv->ndev = ndev;
+ priv->pdev = pdev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ndev->base_addr = res->start;
@@ -491,7 +494,7 @@ static int moxart_mac_probe(struct platform_device *pdev)
priv->tx_buf_size = TX_BUF_SIZE;
priv->rx_buf_size = RX_BUF_SIZE;
- priv->tx_desc_base = dma_alloc_coherent(NULL, TX_REG_DESC_SIZE *
+ priv->tx_desc_base = dma_alloc_coherent(&pdev->dev, TX_REG_DESC_SIZE *
TX_DESC_NUM, &priv->tx_base,
GFP_DMA | GFP_KERNEL);
if (!priv->tx_desc_base) {
@@ -499,7 +502,7 @@ static int moxart_mac_probe(struct platform_device *pdev)
goto init_fail;
}
- priv->rx_desc_base = dma_alloc_coherent(NULL, RX_REG_DESC_SIZE *
+ priv->rx_desc_base = dma_alloc_coherent(&pdev->dev, RX_REG_DESC_SIZE *
RX_DESC_NUM, &priv->rx_base,
GFP_DMA | GFP_KERNEL);
if (!priv->rx_desc_base) {
diff --git a/drivers/net/ethernet/moxa/moxart_ether.h b/drivers/net/ethernet/moxa/moxart_ether.h
index bee608b547d1..bf4c3029cd0c 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.h
+++ b/drivers/net/ethernet/moxa/moxart_ether.h
@@ -292,6 +292,7 @@
#define LINK_STATUS 0x4
struct moxart_mac_priv_t {
+ struct platform_device *pdev;
void __iomem *base;
unsigned int reg_maccr;
unsigned int reg_imr;