On Fri, Nov 20, 2020 at 6:36 AM Will Deacon <will@xxxxxxxxxx> wrote: > > tlb_finish_mmu() takes two confusing and unused 'start'/'end' address > arguments. Remove them. Ack, but please add the history to it. Those arguments were used, up until 7a30df49f63a ("mm: mmu_gather: remove __tlb_reset_range() for force flush"). And the thing is, using a range flush in theory might be better, but for simplicity it's now doing a "fullmm" one, which is why those arguments no longer matter. (And I think we track the range better now too, which may be another reason they aren't needed) Linus Linus