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dmaengine: idxd: Remove useless DMA-32 fallback configuration

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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>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/009c80294dba72858cd8a6ed2ed81041df1b1e82.1642231430.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Christophe JAILLET 2022-01-15 08:24:20 +01:00 • committed by Vinod Koul
parent 8f7cc6373b
commit b6f2f0352c
1 changed files with 0 additions and 2 deletions
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2
drivers/dma/idxd/init.c
View file

@ -604,8 +604,6 @@ static int idxd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
dev_dbg(dev, "Set DMA masks\n");
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)
goto err;