typhoon: switch from 'pci_' to 'dma_' API
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'typhoon_init_one()' GFP_KERNEL can be used because it is a probe function and no lock is acquired. When memory is allocated in 'typhoon_download_firmware()', GFP_ATOMIC must be used because it can be called from a .ndo_tx_timeout function. So this function can be called with the 'netif_tx_lock' acquired. The call chain is: --> typhoon_tx_timeout (.ndo_tx_timeout function) --> typhoon_start_runtime --> typhoon_download_firmware While at is, update some comments accordingly. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: David Dillow <dave@thedillows.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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5463352776
commit
c8acc09c22
@ -789,8 +789,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
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* it with zeros to ETH_ZLEN for us.
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*/
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if (skb_shinfo(skb)->nr_frags == 0) {
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skb_dma = pci_map_single(tp->tx_pdev, skb->data, skb->len,
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PCI_DMA_TODEVICE);
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skb_dma = dma_map_single(&tp->tx_pdev->dev, skb->data,
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skb->len, DMA_TO_DEVICE);
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txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
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txd->len = cpu_to_le16(skb->len);
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txd->frag.addr = cpu_to_le32(skb_dma);
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@ -800,8 +800,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
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int i, len;
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len = skb_headlen(skb);
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skb_dma = pci_map_single(tp->tx_pdev, skb->data, len,
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PCI_DMA_TODEVICE);
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skb_dma = dma_map_single(&tp->tx_pdev->dev, skb->data, len,
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DMA_TO_DEVICE);
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txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
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txd->len = cpu_to_le16(len);
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txd->frag.addr = cpu_to_le32(skb_dma);
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@ -818,8 +818,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
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len = skb_frag_size(frag);
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frag_addr = skb_frag_address(frag);
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skb_dma = pci_map_single(tp->tx_pdev, frag_addr, len,
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PCI_DMA_TODEVICE);
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skb_dma = dma_map_single(&tp->tx_pdev->dev, frag_addr,
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len, DMA_TO_DEVICE);
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txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
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txd->len = cpu_to_le16(len);
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txd->frag.addr = cpu_to_le32(skb_dma);
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@ -1349,12 +1349,12 @@ typhoon_download_firmware(struct typhoon *tp)
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image_data = typhoon_fw->data;
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fHdr = (struct typhoon_file_header *) image_data;
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/* Cannot just map the firmware image using pci_map_single() as
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/* Cannot just map the firmware image using dma_map_single() as
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* the firmware is vmalloc()'d and may not be physically contiguous,
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* so we allocate some consistent memory to copy the sections into.
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* so we allocate some coherent memory to copy the sections into.
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*/
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err = -ENOMEM;
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dpage = pci_alloc_consistent(pdev, PAGE_SIZE, &dpage_dma);
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dpage = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &dpage_dma, GFP_ATOMIC);
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if (!dpage) {
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netdev_err(tp->dev, "no DMA mem for firmware\n");
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goto err_out;
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@ -1460,7 +1460,7 @@ err_out_irq:
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iowrite32(irqMasked, ioaddr + TYPHOON_REG_INTR_MASK);
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iowrite32(irqEnabled, ioaddr + TYPHOON_REG_INTR_ENABLE);
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pci_free_consistent(pdev, PAGE_SIZE, dpage, dpage_dma);
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dma_free_coherent(&pdev->dev, PAGE_SIZE, dpage, dpage_dma);
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err_out:
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return err;
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@ -1527,8 +1527,8 @@ typhoon_clean_tx(struct typhoon *tp, struct transmit_ring *txRing,
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*/
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skb_dma = (dma_addr_t) le32_to_cpu(tx->frag.addr);
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dma_len = le16_to_cpu(tx->len);
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pci_unmap_single(tp->pdev, skb_dma, dma_len,
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PCI_DMA_TODEVICE);
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dma_unmap_single(&tp->pdev->dev, skb_dma, dma_len,
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DMA_TO_DEVICE);
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}
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tx->flags = 0;
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@ -1609,8 +1609,8 @@ typhoon_alloc_rx_skb(struct typhoon *tp, u32 idx)
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skb_reserve(skb, 2);
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#endif
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dma_addr = pci_map_single(tp->pdev, skb->data,
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PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
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dma_addr = dma_map_single(&tp->pdev->dev, skb->data, PKT_BUF_SZ,
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DMA_FROM_DEVICE);
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/* Since no card does 64 bit DAC, the high bits will never
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* change from zero.
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@ -1665,20 +1665,19 @@ typhoon_rx(struct typhoon *tp, struct basic_ring *rxRing, volatile __le32 * read
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if (pkt_len < rx_copybreak &&
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(new_skb = netdev_alloc_skb(tp->dev, pkt_len + 2)) != NULL) {
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skb_reserve(new_skb, 2);
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pci_dma_sync_single_for_cpu(tp->pdev, dma_addr,
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PKT_BUF_SZ,
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PCI_DMA_FROMDEVICE);
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dma_sync_single_for_cpu(&tp->pdev->dev, dma_addr,
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PKT_BUF_SZ, DMA_FROM_DEVICE);
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skb_copy_to_linear_data(new_skb, skb->data, pkt_len);
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pci_dma_sync_single_for_device(tp->pdev, dma_addr,
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PKT_BUF_SZ,
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PCI_DMA_FROMDEVICE);
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dma_sync_single_for_device(&tp->pdev->dev, dma_addr,
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PKT_BUF_SZ,
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DMA_FROM_DEVICE);
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skb_put(new_skb, pkt_len);
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typhoon_recycle_rx_skb(tp, idx);
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} else {
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new_skb = skb;
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skb_put(new_skb, pkt_len);
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pci_unmap_single(tp->pdev, dma_addr, PKT_BUF_SZ,
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PCI_DMA_FROMDEVICE);
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dma_unmap_single(&tp->pdev->dev, dma_addr, PKT_BUF_SZ,
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DMA_FROM_DEVICE);
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typhoon_alloc_rx_skb(tp, idx);
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}
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new_skb->protocol = eth_type_trans(new_skb, tp->dev);
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@ -1792,8 +1791,8 @@ typhoon_free_rx_rings(struct typhoon *tp)
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for (i = 0; i < RXENT_ENTRIES; i++) {
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struct rxbuff_ent *rxb = &tp->rxbuffers[i];
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if (rxb->skb) {
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pci_unmap_single(tp->pdev, rxb->dma_addr, PKT_BUF_SZ,
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PCI_DMA_FROMDEVICE);
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dma_unmap_single(&tp->pdev->dev, rxb->dma_addr,
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PKT_BUF_SZ, DMA_FROM_DEVICE);
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dev_kfree_skb(rxb->skb);
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rxb->skb = NULL;
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}
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@ -2306,7 +2305,7 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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goto error_out_disable;
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}
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err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
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err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
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if (err < 0) {
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err_msg = "No usable DMA configuration";
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goto error_out_mwi;
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@ -2355,8 +2354,8 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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/* allocate pci dma space for rx and tx descriptor rings
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*/
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shared = pci_alloc_consistent(pdev, sizeof(struct typhoon_shared),
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&shared_dma);
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shared = dma_alloc_coherent(&pdev->dev, sizeof(struct typhoon_shared),
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&shared_dma, GFP_KERNEL);
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if (!shared) {
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err_msg = "could not allocate DMA memory";
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err = -ENOMEM;
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@ -2509,8 +2508,8 @@ error_out_reset:
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typhoon_reset(ioaddr, NoWait);
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error_out_dma:
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pci_free_consistent(pdev, sizeof(struct typhoon_shared),
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shared, shared_dma);
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dma_free_coherent(&pdev->dev, sizeof(struct typhoon_shared), shared,
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shared_dma);
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error_out_remap:
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pci_iounmap(pdev, ioaddr);
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error_out_regions:
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@ -2537,8 +2536,8 @@ typhoon_remove_one(struct pci_dev *pdev)
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pci_restore_state(pdev);
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typhoon_reset(tp->ioaddr, NoWait);
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pci_iounmap(pdev, tp->ioaddr);
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pci_free_consistent(pdev, sizeof(struct typhoon_shared),
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tp->shared, tp->shared_dma);
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dma_free_coherent(&pdev->dev, sizeof(struct typhoon_shared),
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tp->shared, tp->shared_dma);
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pci_release_regions(pdev);
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pci_clear_mwi(pdev);
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pci_disable_device(pdev);
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