On Mon, 8 Apr 2019, Leizhen (ThunderTown) wrote: > > > > This will break systems using boot options as now, and I think > > this is unacceptable. If you want to do so, just introduce iommu.dma_mode > > on top of those iommu boot options with dma mode boot options unchanged, > > and iommu.dma_mode is for all archs but compatible with them. > > I just changed the boot options name, but keep the function no change. I added > all related maintainers/supporters in the "to=" list, maybe we can disuss this. Changing the name _IS_ the problem. Think about unattended updates. > Should I add some "obsoleted" warnings for old options and keep them for a while? No, just keep the old options around for backwards compatibilty sake. We just do not add new arch specific options in the future. New options need to use the generic iommu.dma_mode name space. Thanks, tglx
