nvme-pci: don't fall back to a 32-bit DMA mask



Since Linux 5.0 drivers can safely set the largest DMA mask supported
by the device, and don't need fallbacks to work around the dma mapping
implementations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>

parent 21774222

drivers/nvme/host/pci.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -2289,8 +2289,7 @@ static int nvme_pci_enable(struct nvme_dev *dev)

		pci_set_master(pdev);

		if (dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)) &&
		dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(32)))
		if (dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)))
		goto disable;

		if (readl(dev->bar + NVME_REG_CSTS) == -1) {