On Thu, Jan 04, 2018 at 12:01:26PM -0700, Logan Gunthorpe wrote: > Some PCI devices may have memory mapped in a BAR space that's > intended for use in Peer-to-Peer transactions. In order to enable > such transactions the memory must be registered with ZONE_DEVICE pages > so it can be used by DMA interfaces in existing drivers. > ... > + * pci_p2pmem_alloc_sgl - allocate p2p memory in an sgl > + * @pdev: the device to allocate memory from > + * @sgl: the allocated sgl > + * @nents: the number of sgs in the list > + * @length: number of bytes to allocate Your later patches use "SGL" in English text. If that's the conventional capitalization, please use it here, too.