In [1], Christoph Hellwig has proposed to remove the wrappers in include/linux/pci-dma-compat.h. Some reasons why this API should be removed have been given by Julia Lawall in [2]. A coccinelle script has been used to perform the needed transformation Only relevant parts are given below. It has been hand modified to use 'dma_set_mask_and_coherent()' instead of 'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable. This is less verbose. Finally, the now useless 'dma_mask' variable has been removed. It has been compile tested. @@ 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) [1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@xxxxxxxxxxxxx/ [2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/ Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- drivers/net/ethernet/sun/niu.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 1501e8906be4..a68a01d1b2b1 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -9722,7 +9722,6 @@ static int niu_pci_init_one(struct pci_dev *pdev, struct net_device *dev; struct niu *np; int err; - u64 dma_mask; niu_driver_version(); @@ -9777,18 +9776,11 @@ static int niu_pci_init_one(struct pci_dev *pdev, PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE | PCI_EXP_DEVCTL_RELAX_EN); - dma_mask = DMA_BIT_MASK(44); - err = pci_set_dma_mask(pdev, dma_mask); - if (!err) { + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44)); + if (!err) dev->features |= NETIF_F_HIGHDMA; - err = pci_set_consistent_dma_mask(pdev, dma_mask); - if (err) { - dev_err(&pdev->dev, "Unable to obtain 44 bit DMA for consistent allocations, aborting\n"); - goto err_out_release_parent; - } - } if (err) { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (err) { dev_err(&pdev->dev, "No usable DMA configuration, aborting\n"); goto err_out_release_parent; -- 2.30.2
