提交 09795bc6 编写于 作者: C Christophe JAILLET 提交者: Xiaochen Shen

dmaengine: idxd: Simplify code and axe the use of a deprecated API

mainline inclusion
from mainline-v5.15
commit 53b50458
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO
CVE: NA

Intel-SIG: commit 53b50458 dmaengine: idxd: Simplify code and axe the use of a deprecated API.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

--------------------------------

The wrappers in include/linux/pci-dma-compat.h should go away.

Replace 'pci_set_dma_mask/pci_set_consistent_dma_mask' by an equivalent
and less verbose 'dma_set_mask_and_coherent()' call.

Even if the code may look different, it should have exactly the same
run-time behavior.
If pci_set_dma_mask(64) fails and pci_set_dma_mask(32) succeeds, then
pci_set_consistent_dma_mask(64) will also fail.
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: NDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/70c8a3bc67e41c5fefb526ecd64c5174c1e2dc76.1625720835.git.christophe.jaillet@wanadoo.frSigned-off-by: NVinod Koul <vkoul@kernel.org>
Signed-off-by: NXiaochen Shen <xiaochen.shen@intel.com>
上级 0a1f856f
......@@ -639,15 +639,9 @@ static int idxd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
dev_dbg(dev, "Set DMA masks\n");
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc)
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc)
goto err;
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (rc)
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (rc)
goto err;
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册