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SubjectRe: [PATCH 0/2] sh: get rid of __ARCH_USE_5LEVEL_HACK
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 <>
> >
> > 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,

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