Please add some documentation on where/how this should be used. It's not a very obvious interface.
- [PATCH v5 0/9] dmaengine: rcar-dmac: add iommu support f... Niklas Söderlund
- [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_res... Niklas Söderlund
- Re: [PATCH v5 3/9] dma-mapping: add dma_{map,un... Christoph Hellwig
- Re: [PATCH v5 3/9] dma-mapping: add dma_{ma... Niklas S??derlund
- Re: [PATCH v5 3/9] dma-mapping: add dma... Vinod Koul
- Re: [PATCH v5 3/9] dma-mapping: add dma... Dan Williams
- Re: [PATCH v5 3/9] dma-mapping: ad... Christoph Hellwig
- Re: [PATCH v5 3/9] dma-mapping... Niklas Söderlund
- Re: [PATCH v5 3/9] dma-map... Christoph Hellwig
- Re: [PATCH v5 3/9] dma-map... Laurent Pinchart
- Re: [PATCH v5 3/9] dma-map... Christoph Hellwig
- Re: [PATCH v5 3/9] dma-map... Niklas Söderlund
- Re: [PATCH v5 3/9] dma-map... Niklas Söderlund
