diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2009-03-31 22:16:52 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-02 09:57:00 +0200 |
| commit | 461cadbc62b098b49b55de10605d330c8b494889 (patch) | |
| tree | 11c39ee9cc99d7d9acb28a7626f7ae926f4bed76 /drivers/net | |
| parent | netfilter: use rcu_read_bh() in ipt_do_table() (diff) | |
| download | linux-461cadbc62b098b49b55de10605d330c8b494889.tar.xz linux-461cadbc62b098b49b55de10605d330c8b494889.zip | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/fec_mpc52xx.c | 19 |
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); |