On Tue, 2018-10-30 at 11:02:03 UTC, Alistair Popple wrote: > The NPU IOMMU is setup to mirror the parent PCIe device IOMMU > setup. Therefore it does not make sense to call dma operations such as > dma_map_page, etc. directly on these devices. The existing dma-ops > simply print a warning if they are ever called, however this is > unnecessary and the warnings are likely to go unnoticed. > > It is instead simpler to remove these operations and let the generic > DMA code print warnings (eg. via a NULL pointer deref) in cases of > buggy drivers attempting dma operations on NVLink devices. > > Signed-off-by: Alistair Popple <alist...@popple.id.au>
Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/3182215dd0b2120fb942ed88430cfb cheers