On Thu, Jan 14, 2021 at 12:18 AM Ard Biesheuvel <a...@kernel.org> wrote: > > So if the arguments are piling up, what is holding us back, other than > inertia?
I think we can most certainly just try increasing the minimum version to 5.1 in the next merge window and see. > Note that banning 4.9 for arm64 and banning it in general should be > two different changes in any case, as the former will need to be > backported to -stable kernels as well. Yes. The arm64 issue is a clear and known bug, plus I suspect gcc-4.9 is ridiculously old in the arm64 ecosystem anyway. So the arm64 issue is a bug-fix, the follow-up of just upgrading gcc requirements in general would be a "keep up with the times, and allow those variable declarations in loops". Linus