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Re: [PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_map_sg()

On 7/15/21 12:45 PM, Logan Gunthorpe wrote:
> From: Martin Oliveira <martin.oliveira@xxxxxxxxxxxxx>
> 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@xxxxxxxxxx>



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