Hi Robin, Am 08.08.2017 um 20:03 schrieb Johan Hovold: > On Sat, Aug 05, 2017 at 10:38:07AM +0200, Christoph Hellwig wrote: >> I think the root problem is that the code added by >> " of/acpi: Configure dma operations at probe time for platform/amba/pci bus >> devices" >> >> is completely bogus and needs to be reverted. We can't simply iterate >> over all devices in the system and set up dma for them. We'll need >> to ask the firmware / OF what root port this applies to and only >> apply it to those buses. > I'm afraid I haven't had time to look any more at this, and now I'll be > offline for the next two weeks. > > It sounded like Robin was working on a fix for the broken DMA-mask on > RPI3 and that should address Hans's ethernet regression too even if we > ultimately need to fix dma_configure() as well. can you confirm that DMA-mask on RPI3 is broken? Why? > > Thanks, > Johan