On Tue, Dec 17, 2019 at 10:15:49AM -0500, Rich Felker wrote: > On Tue, Dec 17, 2019 at 04:21:48PM +0200, Mike Rapoport wrote: > > From: Mike Rapoport <rppt@xxxxxxxxxxxxx> > > > > Hi, > > > > These patches update the SuperH page table folding/unfolding to take into > > account the 5th level. > > Is this only for 64-bit/sh5? If so, I'd really like to avoid having > patch churn that nominally keeps it working, since it doesn't; GCC > dropped support a long time ago and it was experimental to begin with, > never appeared in production. Has anyone looked lately at what it > would take to remove it? This is a part of a generic cleanup of page table manipulations and removal of __ARCH_USE_5LEVEL_HACK and the related code from the kernel. So this is not related to a particular sh variant. > Rich -- Sincerely yours, Mike.