2020-11-21 09:53:53

by Christophe JAILLET

Subject: [PATCH] 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.

Signed-off-by: Christophe JAILLET <[email protected]>
---
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

2020-11-23 15:21:51

by Marciniszyn, Mike

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

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 <[email protected]>

Thanks for the patch.

Looks ok to me.

Acked-by: Mike Marciniszyn <[email protected]>

2020-11-24 12:59:51

by Jason Gunthorpe

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

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 <[email protected]>
> Acked-by: Mike Marciniszyn <[email protected]>
> ---
> drivers/infiniband/hw/qib/qib_pcie.c | 11 ++---------
> 1 file changed, 2 insertions(+), 9 deletions(-)

Applied to for-next, thanks

Jason