IB/qib: Use dma_set_mask_and_coherent to simplify code

'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.

Link: https://lore.kernel.org/r/20201121095127.1335228-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 3dc6ce0..2e07b37 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -90,25 +90,18 @@ int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent)
                goto bail;
        }
 
-       ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+       ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
        if (ret) {
                /*
                 * If the 64 bit setup fails, try 32 bit.  Some systems
                 * do not setup 64 bit maps on systems with 2GB or less
                 * memory installed.
                 */
-               ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+               ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
                if (ret) {
                        qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret);
                        goto bail;
                }
-               ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-       } else
-               ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-       if (ret) {
-               qib_early_err(&pdev->dev,
-                             "Unable to set DMA consistent mask: %d\n", ret);
-               goto bail;
        }
 
        pci_set_master(pdev);