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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-01-15 08:33:26 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-02-15 11:04:06 +0530 |
| commit | 4ae7094011bea9c1d5b2ea9d3d4d640b394e9630 (patch) | |
| tree | a509850d2b6cd2db8f88683b4a1d6f84d57b6064 /drivers/dma/ioat | |
| parent | b6ccf01975976066901e0d5130669d743040d0e3 (diff) | |
| download | lwn-4ae7094011bea9c1d5b2ea9d3d4d640b394e9630.tar.gz lwn-4ae7094011bea9c1d5b2ea9d3d4d640b394e9630.zip | |
dmaengine: iot: 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>
Link: https://lore.kernel.org/r/1d0de79852a3551545fe896789a75b36e35db8e6.1642231987.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ioat')
| -rw-r--r-- | drivers/dma/ioat/init.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c index 373b8dac6c9b..5d707ff63554 100644 --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1365,8 +1365,6 @@ static int ioat_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) 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; device = alloc_ioatdma(pdev, iomap[IOAT_MMIO_BAR]); |