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SubjectRe: [PATCH RFC 07/22] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden
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On 11/7/23 20:29, Russell King (Oracle) wrote:
> From: James Morse <james.morse@arm.com>
>
> Architectures often have extra per-cpu work that needs doing
> before a CPU is registered, often to determine if a CPU is
> hotpluggable.
>
> To allow the ACPI architectures to use GENERIC_CPU_DEVICES, move
> the cpu_register() call into arch_register_cpu(), which is made __weak
> so architectures with extra work can override it.
> This aligns with the way x86, ia64 and loongarch register hotplug CPUs
> when they become present.
>
> Signed-off-by: James Morse <james.morse@arm.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> ---
> Changes since RFC:
> * Dropped __init from x86/ia64 arch_register_cpu()
> Changes since RFC v2:
> * Dropped unnecessary Loongarch asm/cpu.h changes
> ---
> drivers/base/cpu.c | 14 ++++++++++----
> include/linux/cpu.h | 4 ++++
> 2 files changed, 14 insertions(+), 4 deletions(-)
>

Reviewed-by: Gavin Shan <gshan@redhat.com>

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