| Message ID | 5663cef9b54004fa56cca7ce65f51eadfc3ecddb.1642238127.git.christophe.jaillet@wanadoo.fr |
|---|---|
| State | New |
| Headers | show |
| Series | scsi: bfa: Remove useless DMA-32 fallback configuration | expand |
Christophe, > 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. Applied to 5.17/scsi-staging, thanks!
On Sat, 15 Jan 2022 10:15:41 +0100, Christophe JAILLET wrote: > 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/linux-kernel/YL3vSPK5DXTNvgdx@infradead.org/#t > > [...] Applied to 5.17/scsi-fixes, thanks! [1/1] scsi: bfa: Remove useless DMA-32 fallback configuration https://git.kernel.org/mkp/scsi/c/012d98dae453
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 440ef32be048..e5aa982ffedc 100644 --- a/drivers/scsi/bfa/bfad.c +++ b/drivers/scsi/bfa/bfad.c @@ -732,9 +732,6 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad) pci_set_master(pdev); rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); - if (rc) - rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); - if (rc) { rc = -ENODEV; printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev); @@ -1559,9 +1556,6 @@ bfad_pci_slot_reset(struct pci_dev *pdev) pci_set_master(pdev); rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64)); - if (rc) - rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, - DMA_BIT_MASK(32)); if (rc) goto out_disable_device;
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/linux-kernel/YL3vSPK5DXTNvgdx@infradead.org/#t Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/scsi/bfa/bfad.c | 6 ------ 1 file changed, 6 deletions(-)