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 'de_alloc_rings()' GFP_KERNEL can be used because it is only called from 'de_open()' which is a '.ndo_open' function. Such functions are synchronized using the rtnl_lock() semaphore and no lock is taken in the between. @@ @@ - 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.jail...@wanadoo.fr> --- If needed, see post from Christoph Hellwig on the kernel-janitors ML: https://marc.info/?l=kernel-janitors&m=158745678307186&w=4 --- drivers/net/ethernet/dec/tulip/de2104x.c | 62 ++++++++++++++---------- 1 file changed, 36 insertions(+), 26 deletions(-) diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c index cb116b530f5e..0931881403b6 100644 --- a/drivers/net/ethernet/dec/tulip/de2104x.c +++ b/drivers/net/ethernet/dec/tulip/de2104x.c @@ -443,21 +443,23 @@ static void de_rx (struct de_private *de) } if (!copying_skb) { - pci_unmap_single(de->pdev, mapping, - buflen, PCI_DMA_FROMDEVICE); + dma_unmap_single(&de->pdev->dev, mapping, buflen, + DMA_FROM_DEVICE); skb_put(skb, len); mapping = de->rx_skb[rx_tail].mapping = - pci_map_single(de->pdev, copy_skb->data, - buflen, PCI_DMA_FROMDEVICE); + dma_map_single(&de->pdev->dev, copy_skb->data, + buflen, DMA_FROM_DEVICE); de->rx_skb[rx_tail].skb = copy_skb; } else { - pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); + dma_sync_single_for_cpu(&de->pdev->dev, mapping, len, + DMA_FROM_DEVICE); skb_reserve(copy_skb, RX_OFFSET); skb_copy_from_linear_data(skb, skb_put(copy_skb, len), len); - pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE); + dma_sync_single_for_device(&de->pdev->dev, mapping, + len, DMA_FROM_DEVICE); /* We'll reuse the original ring buffer. */ skb = copy_skb; @@ -554,13 +556,15 @@ static void de_tx (struct de_private *de) goto next; if (unlikely(skb == DE_SETUP_SKB)) { - pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, - sizeof(de->setup_frame), PCI_DMA_TODEVICE); + dma_unmap_single(&de->pdev->dev, + de->tx_skb[tx_tail].mapping, + sizeof(de->setup_frame), + DMA_TO_DEVICE); goto next; } - pci_unmap_single(de->pdev, de->tx_skb[tx_tail].mapping, - skb->len, PCI_DMA_TODEVICE); + dma_unmap_single(&de->pdev->dev, de->tx_skb[tx_tail].mapping, + skb->len, DMA_TO_DEVICE); if (status & LastFrag) { if (status & TxError) { @@ -620,7 +624,8 @@ static netdev_tx_t de_start_xmit (struct sk_buff *skb, txd = &de->tx_ring[entry]; len = skb->len; - mapping = pci_map_single(de->pdev, skb->data, len, PCI_DMA_TODEVICE); + mapping = dma_map_single(&de->pdev->dev, skb->data, len, + DMA_TO_DEVICE); if (entry == (DE_TX_RING_SIZE - 1)) flags |= RingEnd; if (!tx_free || (tx_free == (DE_TX_RING_SIZE / 2))) @@ -763,8 +768,8 @@ static void __de_set_rx_mode (struct net_device *dev) de->tx_skb[entry].skb = DE_SETUP_SKB; de->tx_skb[entry].mapping = mapping = - pci_map_single (de->pdev, de->setup_frame, - sizeof (de->setup_frame), PCI_DMA_TODEVICE); + dma_map_single(&de->pdev->dev, de->setup_frame, + sizeof(de->setup_frame), DMA_TO_DEVICE); /* Put the setup frame on the Tx list. */ txd = &de->tx_ring[entry]; @@ -1279,8 +1284,10 @@ static int de_refill_rx (struct de_private *de) if (!skb) goto err_out; - de->rx_skb[i].mapping = pci_map_single(de->pdev, - skb->data, de->rx_buf_sz, PCI_DMA_FROMDEVICE); + de->rx_skb[i].mapping = dma_map_single(&de->pdev->dev, + skb->data, + de->rx_buf_sz, + DMA_FROM_DEVICE); de->rx_skb[i].skb = skb; de->rx_ring[i].opts1 = cpu_to_le32(DescOwn); @@ -1313,7 +1320,8 @@ static int de_init_rings (struct de_private *de) static int de_alloc_rings (struct de_private *de) { - de->rx_ring = pci_alloc_consistent(de->pdev, DE_RING_BYTES, &de->ring_dma); + de->rx_ring = dma_alloc_coherent(&de->pdev->dev, DE_RING_BYTES, + &de->ring_dma, GFP_KERNEL); if (!de->rx_ring) return -ENOMEM; de->tx_ring = &de->rx_ring[DE_RX_RING_SIZE]; @@ -1333,8 +1341,9 @@ static void de_clean_rings (struct de_private *de) for (i = 0; i < DE_RX_RING_SIZE; i++) { if (de->rx_skb[i].skb) { - pci_unmap_single(de->pdev, de->rx_skb[i].mapping, - de->rx_buf_sz, PCI_DMA_FROMDEVICE); + dma_unmap_single(&de->pdev->dev, + de->rx_skb[i].mapping, de->rx_buf_sz, + DMA_FROM_DEVICE); dev_kfree_skb(de->rx_skb[i].skb); } } @@ -1344,15 +1353,15 @@ static void de_clean_rings (struct de_private *de) if ((skb) && (skb != DE_DUMMY_SKB)) { if (skb != DE_SETUP_SKB) { de->dev->stats.tx_dropped++; - pci_unmap_single(de->pdev, - de->tx_skb[i].mapping, - skb->len, PCI_DMA_TODEVICE); + dma_unmap_single(&de->pdev->dev, + de->tx_skb[i].mapping, + skb->len, DMA_TO_DEVICE); dev_kfree_skb(skb); } else { - pci_unmap_single(de->pdev, - de->tx_skb[i].mapping, - sizeof(de->setup_frame), - PCI_DMA_TODEVICE); + dma_unmap_single(&de->pdev->dev, + de->tx_skb[i].mapping, + sizeof(de->setup_frame), + DMA_TO_DEVICE); } } } @@ -1364,7 +1373,8 @@ static void de_clean_rings (struct de_private *de) static void de_free_rings (struct de_private *de) { de_clean_rings(de); - pci_free_consistent(de->pdev, DE_RING_BYTES, de->rx_ring, de->ring_dma); + dma_free_coherent(&de->pdev->dev, DE_RING_BYTES, de->rx_ring, + de->ring_dma); de->rx_ring = NULL; de->tx_ring = NULL; } -- 2.25.1
