Re: [RFC PATCH v1 2/9] uaccess: Convert INLINE_COPY_{TO/FROM}_USER to kconfig and reduce ifdefery

Yury Norov
2026-04-27T18:39:34Z

On Mon, Apr 27, 2026 at 07:13:43PM +0200, Christophe Leroy (CS GROUP) wrote:
> Among the 21 architectures supported by the kernel, 16 define both
> INLINE_COPY_TO_USER and INLINE_COPY_FROM_USER while the 5 other ones
> don't define any of the two.
>
> To simplify and reduce risk of mistakes, convert them to a single
> kconfig item named CONFIG_ARCH_WANTS_NOINLINE_COPY which will be

We've got a special word for it: outline. Can you name it
CONFIG_OUTLINE_USERCOPY, or similar?

> selected by the 5 architectures that don't want inlined copy.
>
> To minimise complication in a later patch, also remove
> ifdefery and replace it with IS_ENABLED().
>
> Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

Andrew has taken my consolidation patch for INLINE_COPY_USER:

https://lore.kernel.org/all/20260427085814.7ca0b134603b8d5813e23396@linux-foundation.org/

Please base your series on top of it.

I'm not sure this patch is relevant to the goal of your series. Maybe
send it separately?

Thanks,
Yury