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    SubjectRe: [PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_map_sg()
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    On 7/15/21 12:45 PM, Logan Gunthorpe wrote:
    > From: Martin Oliveira <martin.oliveira@eideticom.com>
    >
    > The .map_sg() op now expects an error code instead of zero on failure.
    >
    > xen_swiotlb_map_sg() may only fail if xen_swiotlb_map_page() fails, but
    > xen_swiotlb_map_page() only supports returning errors as
    > DMA_MAPPING_ERROR. So coalesce all errors into EINVAL.


    Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>



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