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authorRussell King (Oracle)2022-10-12 12:46:06 +0100
committerChristoph Hellwig2022-10-19 10:36:39 +0200
commitd622f8477a8018974f8df961440dca58224f9c6b (patch)
tree463ce10fcf03e774d9395b66f60c09ab98bcf7db /Documentation/s390/vfio-ccw.rst
parentac9b57d4e1e3ecf0122e915bbba1bd4c90ec3031 (diff)
nvme-apple: don't limit DMA segement size
NVMe uses PRPs for data transfers and has no specific limit for a single DMA segement. Limiting the size will cause problems because the block layer assumes PRP-ish devices using a virt boundary mask don't have a segment limit. And while this is true, we also really need to tell the DMA mapping layer about it, otherwise dma-debug will trip over it. Fixes: 5bd2927aceba ("nvme-apple: Add initial Apple SoC NVMe driver") Suggested-by: Sven Peter <sven@svenpeter.dev> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> [hch: rewrote the commit message based on the PCIe commit] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Curtin <ecurtin@redhat.com> Reviewed-by: Sven Peter <sven@svenpeter.dev>
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