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由 Laura Abbott 提交于
If CONFIG_IOMMU_API is not defined some functions will just return -ENODEV. Add errno.h for the definition of ENODEV. Signed-off-by: NLaura Abbott <lauraa@codeaurora.org> Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
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