leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

dmaengine: iot: Remove useless DMA-32 fallback configuration

Browse Source 
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>
Link: https://lore.kernel.org/r/1d0de79852a3551545fe896789a75b36e35db8e6.1642231987.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Christophe JAILLET 2022-01-15 08:33:26 +01:00 committed by Vinod Koul
parent b6ccf01975
commit 4ae7094011
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/dma/ioat/init.c
View File

@ -1364,8 +1364,6 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return -ENOMEM;
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err)
return err;