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authorGrant Likely <grant.likely@secretlab.ca>2009-04-01 00:16:52 +0400
committerDavid S. Miller <davem@davemloft.net>2009-04-02 11:57:00 +0400
commit461cadbc62b098b49b55de10605d330c8b494889 (patch)
tree11c39ee9cc99d7d9acb28a7626f7ae926f4bed76
parentfa9a86ddc8ecd2830a5e773facc250f110300ae7 (diff)
downloadlinux-461cadbc62b098b49b55de10605d330c8b494889.tar.xz
net/fec_mpc52xx: fix BUG on missing dma_ops
The driver triggers a BUG_ON() when allocating DMA buffers because the arch/powerpc dma_ops aren't in the net_device's struct device. This patch fixes the problem by using the parent of_device which does have the correct dma_ops set. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/fec_mpc52xx.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index cd8e98b45ec5..024b10a0bec8 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -129,7 +129,8 @@ static void mpc52xx_fec_free_rx_buffers(struct net_device *dev, struct bcom_task
struct sk_buff *skb;
skb = bcom_retrieve_buffer(s, NULL, (struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, skb->len, DMA_FROM_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len,
+ DMA_FROM_DEVICE);
kfree_skb(skb);
}
}
@@ -150,7 +151,7 @@ static int mpc52xx_fec_alloc_rx_buffers(struct net_device *dev, struct bcom_task
bd = (struct bcom_fec_bd *)bcom_prepare_next_buffer(rxtsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(rxtsk, skb);
@@ -388,7 +389,8 @@ static int mpc52xx_fec_hard_start_xmit(struct sk_buff *skb, struct net_device *d
bcom_prepare_next_buffer(priv->tx_dmatsk);
bd->status = skb->len | BCOM_FEC_TX_BD_TFD | BCOM_FEC_TX_BD_TC;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data, skb->len, DMA_TO_DEVICE);
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data, skb->len,
+ DMA_TO_DEVICE);
bcom_submit_next_buffer(priv->tx_dmatsk, skb);
@@ -430,7 +432,8 @@ static irqreturn_t mpc52xx_fec_tx_interrupt(int irq, void *dev_id)
struct bcom_fec_bd *bd;
skb = bcom_retrieve_buffer(priv->tx_dmatsk, NULL,
(struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, skb->len, DMA_TO_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len,
+ DMA_TO_DEVICE);
dev_kfree_skb_irq(skb);
}
@@ -455,7 +458,8 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id)
rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status,
(struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, rskb->len, DMA_FROM_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, rskb->len,
+ DMA_FROM_DEVICE);
/* Test for errors in received frame */
if (status & BCOM_FEC_RX_BD_ERRORS) {
@@ -464,7 +468,8 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id)
bcom_prepare_next_buffer(priv->rx_dmatsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, rskb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent,
+ rskb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(priv->rx_dmatsk, rskb);
@@ -499,7 +504,7 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id)
bcom_prepare_next_buffer(priv->rx_dmatsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(priv->rx_dmatsk, skb);