From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Likely Subject: [PATCH] net/fec_mpc52xx: fix BUG on missing dma_ops Date: Mon, 30 Mar 2009 20:25:10 -0600 Message-ID: <20090331022428.26151.55232.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: galak@kernel.crashing.net To: netdev@vger.kernel.org, linuxppc-dev@ozlabs.org, David Miller , Becky Bruce Return-path: Received: from rv-out-0506.google.com ([209.85.198.232]:34343 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752985AbZCaCZQ (ORCPT ); Mon, 30 Mar 2009 22:25:16 -0400 Received: by rv-out-0506.google.com with SMTP id f9so2752141rvb.1 for ; Mon, 30 Mar 2009 19:25:14 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: From: Grant Likely The driver triggers a BUG_ON() when allocating DMA buffers if the arch/powerpc dma_ops from the of_platform device are not copied into net_device structure. Signed-off-by: Grant Likely --- Becky, does this look better to you? g. 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 049b0a7..f99463f 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);