As stated in [1], dma_set_mask() with a 64-bit mask never fails if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. Simplify code and remove some dead code accordingly. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- drivers/net/ethernet/rocker/rocker_main.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index b620470c7905..3fcea211716c 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -2870,19 +2870,10 @@ static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err_pci_request_regions; } - err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); - if (!err) { - err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); - if (err) { - dev_err(&pdev->dev, "dma_set_coherent_mask failed\n"); - goto err_pci_set_dma_mask; - } - } else { - err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (err) { - dev_err(&pdev->dev, "dma_set_mask failed\n"); - goto err_pci_set_dma_mask; - } + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (err) { + dev_err(&pdev->dev, "dma_set_mask failed\n"); + goto err_pci_set_dma_mask; } if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) { -- 2.32.0
