Re: [PATCH v2 2/3] cpu/hotplug: Weak fallback for arch_cpuhp_init_parallel_bringup

[Thomas Gleixner <tglx@linutronix.de>]

On Mon, Jul 15 2024 at 21:35, Jiaxun Yang wrote:
> It is a general assumption that architectures entitled to parallel
> bringup with CONFIG_HOTPLUG_PARALLEL do expect parallel bringup to
> be available.

I can't parse that sentence.

> Provide a weak fallback arch_cpuhp_init_parallel_bringup function
> to match this assumption.

I assume you want to say something like this:

 CONFIG_HOTPLUG_PARALLEL expects the architecture to implement
 arch_cpuhp_init_parallel_bringup() to decide whether paralllel hotplug
 is possible and to do the necessary architecture specific
 initialization.

 There are architectures which can enable it unconditionally and do not
 require architecture specific initialization.

 Provide a wark fallback for arch_cpuhp_init_parallel_bringup() so that
 such architectures are not forced to implement empty stub functions.

Thanks,

        tglx