Re: [PATCH RFC 22/22] riscv: convert to use arch_cpu_is_hotpluggable()

[Palmer Dabbelt]

On Tue, 07 Nov 2023 02:31:11 PST (-0800), rmk+kernel@xxxxxxxxxxxxxxx wrote:
> Convert riscv to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
> ---
>  arch/riscv/kernel/setup.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
> index f8875ae1b0aa..168f0db63d53 100644
> --- a/arch/riscv/kernel/setup.c
> +++ b/arch/riscv/kernel/setup.c
> @@ -294,12 +294,9 @@ void __init setup_arch(char **cmdline_p)
>  	riscv_set_dma_cache_alignment();
>  }
>
> -int arch_register_cpu(int cpu)
> +bool arch_cpu_is_hotpluggable(int cpu)
>  {
> -	struct cpu *c = &per_cpu(cpu_devices, cpu);
> -
> -	c->hotpluggable = cpu_has_hotplug(cpu);
> -	return register_cpu(c, cpu);
> +	return cpu_has_hotplug(cpu);
>  }
>
>  void free_initmem(void)

Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>