Re: [PATCH v2 0/3] uaccess: unify inline vs outline copy_{from,to}_user() selection

[Christophe Leroy (CS GROUP)]

Le 27/04/2026 à 17:58, Andrew Morton a écrit :
> On Fri, 24 Apr 2026 22:08:54 -0400 Yury Norov <ynorov@xxxxxxxxxx> wrote:
>
> > The kernel allows arches to select between inline and outline
> > implementations of the copy_{from,to}_user() by defining individual
> > INLINE_COPY_FROM_USER and INLINE_COPY_TO_USER, correspondingly.
> > However, all arches enable or disable them always together.
> >
> > Without the real use-case for one helper being inlined while the other
> > outlined, having independent controls is excessive and error prone.
> >
> > The first patch of the series fixes rust/uaccess coppy_to_user() wrapper
> > guarded with INLINE_COPY_FROM_USER. The 2nd patch switches codebase to
> > the unified INLINE_COPY_USER. And the last patch cleans up ifdefery in
> > the include/linux/uaccess.h
>
> Seems sensible, thanks.  I'll queue these up for test-n-review.
>
> Arnd was involved in some of the Fixes: commits and might be interested
> in these changes, so Cc:.

I have an alternative as patch 2 in this series : 
https://lore.kernel.org/all/cover.1777306795.git.chleroy@xxxxxxxxxx/

Christophe