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misc: genwqe: Use dma_set_mask_and_coherent to simplify code 

'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20201201210147.7917-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET 2020-12-01 22:01:47 +01:00 committed by Greg Kroah-Hartman
parent 5b4258f672
commit 505b08777d
1 changed files with 2 additions and 17 deletions
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19
drivers/misc/genwqe/card_base.c
View File

@ -1089,24 +1089,9 @@ static int genwqe_pci_setup(struct genwqe_dev *cd)
}
/* check for 64-bit DMA address supported (DAC) */
if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(64))) {
err = pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(64));
if (err) {
dev_err(&pci_dev->dev,
"err: DMA64 consistent mask error\n");
err = -EIO;
goto out_release_resources;
}
/* check for 32-bit DMA address supported (SAC) */
} else if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
err = pci_set_consistent_dma_mask(pci_dev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pci_dev->dev,
"err: DMA32 consistent mask error\n");
err = -EIO;
goto out_release_resources;
}
} else {
if (dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32))) {
dev_err(&pci_dev->dev,
"err: neither DMA32 nor DMA64 supported\n");
err = -EIO;