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

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@deltatee.com>
---
 kernel/dma/mapping.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason