On Tue, 07 Nov 2023 10:30:45 +0000
"Russell King (Oracle)" <rmk+kernel@xxxxxxxxxxxxxxx> wrote:
> Convert x86 to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
As with earlier set of related changes, could squash this down to avoid
churn and use Co-developed or similar. Up to you though.
Maybe a forwards reference to this being a later change in the patch 15
description might be good though!
> ---
> arch/x86/kernel/topology.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
> index 211863cb5b81..d42c28b8bfd8 100644
> --- a/arch/x86/kernel/topology.c
> +++ b/arch/x86/kernel/topology.c
> @@ -36,11 +36,8 @@
> #include <asm/cpu.h>
>
> #ifdef CONFIG_HOTPLUG_CPU
> -int arch_register_cpu(int cpu)
> +bool arch_cpu_is_hotpluggable(int cpu)
> {
> - struct cpu *c = per_cpu_ptr(&cpu_devices, cpu);
> -
> - c->hotpluggable = cpu > 0;
> - return register_cpu(c, cpu);
> + return cpu > 0;
> }
> #endif /* CONFIG_HOTPLUG_CPU */
