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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>
This commit is contained in:
Christophe JAILLET 2022-01-09 09:35:18 +01:00 committed by Jason Gunthorpe
parent 667da76b1c
commit ac491992f3
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
View File

@ -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);