linux-kernel - Re: [PATCH v8 6/9] x86/smpboot: Support parallel startup of secondary CPUs

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Message-ID: <87r0uy1ysm.ffs@tglx>
Date:   Thu, 09 Feb 2023 19:25:29 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Usama Arif <usama.arif@...edance.com>, dwmw2@...radead.org,
        kim.phillips@....com
Cc:     arjan@...ux.intel.com, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com, x86@...nel.org,
        pbonzini@...hat.com, paulmck@...nel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        rcu@...r.kernel.org, mimoja@...oja.de, hewenliang4@...wei.com,
        thomas.lendacky@....com, seanjc@...gle.com, pmenzel@...gen.mpg.de,
        fam.zheng@...edance.com, punit.agrawal@...edance.com,
        simon.evans@...edance.com, liangma@...ngbit.com,
        David Woodhouse <dwmw@...zon.co.uk>,
        Usama Arif <usama.arif@...edance.com>
Subject: Re: [PATCH v8 6/9] x86/smpboot: Support parallel startup of
 secondary CPUs

On Thu, Feb 09 2023 at 15:41, Usama Arif wrote:
>  
> +static bool do_parallel_bringup = true;

Wants to be __ro_after_init

> +static int __init no_parallel_bringup(char *str)
> +{
> +	do_parallel_bringup = false;
> +
> +	return 0;
> +}
> +early_param("no_parallel_bringup", no_parallel_bringup);

Lacks an entry in Documentation/admin/kernel-parameters.txt

Thanks,

        tglx