diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-01-09 09:35:18 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-01-28 15:49:04 +0100 |
| commit | ac491992f3705178e18eb185f392bf3fa2f6f54d (patch) | |
| tree | 590a04486c2583772a2e9ff747f4c90d3f190757 /drivers | |
| parent | IB/mthca: Remove useless DMA-32 fallback configuration (diff) | |
| download | linux-ac491992f3705178e18eb185f392bf3fa2f6f54d.tar.xz linux-ac491992f3705178e18eb185f392bf3fa2f6f54d.zip | |
RDMA/pvrdma: Remove useless DMA-32 fallback configuration
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://lore.kernel.org/r/YL3vSPK5DXTNvgdx@infradead.org
Link: https://lore.kernel.org/r/10c29cb45d14fb8ed89cf1308c4a9a7d445c52eb.1641717275.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c index 105f3a155939..343288b02792 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c @@ -811,12 +811,10 @@ static int pvrdma_pci_probe(struct pci_dev *pdev, } /* Enable 64-Bit DMA */ - if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0) { - ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (ret != 0) { - dev_err(&pdev->dev, "dma_set_mask failed\n"); - goto err_free_resource; - } + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (ret) { + dev_err(&pdev->dev, "dma_set_mask failed\n"); + goto err_free_resource; } dma_set_max_seg_size(&pdev->dev, UINT_MAX); pci_set_master(pdev); |