[PATCH] IB/qib: Use dma_set_mask_and_coherent to simplify code

[PATCH] IB/qib: Use dma_set_mask_and_coherent to simplify code

[Christophe JAILLET]

'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.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/infiniband/hw/qib/qib_pcie.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 3dc6ce033319..2e07b3749b88 100644
--- 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);
-- 
2.27.0

Re: [PATCH] IB/qib: Use dma_set_mask_and_coherent to simplify code

[Mike Marciniszyn]

On 11/21/2020 4:51 AM, Christophe JAILLET wrote:
> '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.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Thanks for the patch.

Looks ok to me.

Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>

Re: [PATCH] IB/qib: Use dma_set_mask_and_coherent to simplify code

[Jason Gunthorpe]

On Sat, Nov 21, 2020 at 10:51:27AM +0100, Christophe JAILLET wrote:
> '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.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
> ---
>  drivers/infiniband/hw/qib/qib_pcie.c | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)

Applied to for-next, thanks

Jason