On Tue, Feb 28, 2017 at 05:19:51PM -0600, Tom Lendacky wrote: > Device drivers don't supply set_dma_mask() since that is part of the > dma_map_ops structure. The fm10k_pf.c file function is unrelated to this > (it's part of an internal driver structure). The dma_map_ops structure > is setup by the arch or an iommu. That was certainly a brainfart, sorry. Joerg explained to me on IRC how the whole dma_map_ops handling is supposed to be happening. Thanks. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.