Re: [PATCH v3 05/20] dma-mapping: allow EREMOTEIO return code for P2PDMA transfers

[Jason Gunthorpe]

On Thu, Sep 16, 2021 at 05:40:45PM -0600, Logan Gunthorpe wrote:
> Add EREMOTEIO error return to dma_map_sgtable() which will be used
> by .map_sg() implementations that detect P2PDMA pages that the
> underlying DMA device cannot access.
> 
> Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> ---
>  kernel/dma/mapping.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason