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/freescale/enetc/enetc.c | 8 ++------ drivers/net/ethernet/freescale/enetc/enetc_ptp.c | 9 ++------- 2 files changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index eacb41f86bdb..d6930a797c6c 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -2897,12 +2897,8 @@ int enetc_pci_probe(struct pci_dev *pdev, const char *name, int sizeof_priv) /* set up for high or low dma */ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (err) { - err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); - if (err) { - dev_err(&pdev->dev, - "DMA configuration failed: 0x%x\n", err); - goto err_dma; - } + dev_err(&pdev->dev, "DMA configuration failed: 0x%x\n", err); + goto err_dma; } err = pci_request_mem_regions(pdev, name); diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c index 36b4f51dd297..17c097cef7d4 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c @@ -42,15 +42,10 @@ static int enetc_ptp_probe(struct pci_dev *pdev, if (err) return dev_err_probe(&pdev->dev, err, "device enable failed\n"); - /* set up for high or low dma */ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (err) { - err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); - if (err) { - dev_err(&pdev->dev, - "DMA configuration failed: 0x%x\n", err); - goto err_dma; - } + dev_err(&pdev->dev, "DMA configuration failed: 0x%x\n", err); + goto err_dma; } err = pci_request_mem_regions(pdev, KBUILD_MODNAME); -- 2.32.0
