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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2022-01-15 10:24:20 +0300
committerVinod Koul <vkoul@kernel.org>2022-03-11 12:53:36 +0300
commitb6f2f0352c0302076dcd0e0297592ea7d37f2242 (patch)
treeb39c3dbd65c4fc6c9d20f0c74f0221836fc3e15e /drivers/dma/idxd
parent8f7cc6373bbbc770e949df6dd6127e52340aafa1 (diff)
downloadlinux-b6f2f0352c0302076dcd0e0297592ea7d37f2242.tar.xz
dmaengine: idxd: Remove useless DMA-32 fallback configuration
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>
Diffstat (limited to 'drivers/dma/idxd')
-rw-r--r--drivers/dma/idxd/init.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 08a5f4310188..993a5dcca24f 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -605,8 +605,6 @@ 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;
dev_dbg(dev, "Set PCI master\n");