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sata_sil24: use dma_set_mask_and_coherent

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Use the dma_set_mask_and_coherent helper to set the DMA mask.  Rely
on the relatively recent change that setting a larger than required
mask will never fail to avoid the need for the boilerplate 32-bit
fallback code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2019-08-26 12:57:24 +02:00 committed by Jens Axboe
parent 440bd77f09
commit dcc02c19cc
1 changed files with 4 additions and 22 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

26
drivers/ata/sata_sil24.c
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@ -1301,28 +1301,10 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
host->iomap = iomap;
/* configure and activate the device */
if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"64-bit DMA enable failed\n");
return rc;
}
}
} else {
rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "32-bit DMA enable failed\n");
return rc;
}
rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev,
"32-bit consistent DMA enable failed\n");
return rc;
}
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
dev_err(&pdev->dev, "DMA enable failed\n");
return rc;
}
/* Set max read request size to 4096. This slightly increases