Re: [PATCH 1/2] mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE

Zi Yan
2026-03-19T13:59:56Z

On 19 Mar 2026, at 4:19, David Hildenbrand (Arm) wrote:

> All architectures that select CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE also
> select CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG. So we can just remove
> CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE.
>
> For CONFIG_MIGRATION, make it depend on CONFIG_MEMORY_HOTREMOVE instead,
> and make CONFIG_MEMORY_HOTREMOVE select CONFIG_MIGRATION (just like
> CONFIG_CMA and CONFIG_COMPACTION already do).
>
> We'll clean up CONFIG_MIGRATION next.
>
> Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
> ---
> arch/arm64/Kconfig | 1 -
> arch/loongarch/Kconfig | 1 -
> arch/powerpc/Kconfig | 1 -
> arch/riscv/Kconfig | 1 -
> arch/s390/Kconfig | 1 -
> arch/x86/Kconfig | 1 -
> mm/Kconfig | 9 +++------
> 7 files changed, 3 insertions(+), 12 deletions(-)
>
Makes sense to me.

Acked-by: Zi Yan <ziy@nvidia.com>

Best Regards,
Yan, Zi