linux-kernel - Re: [RFC PATCH v12 05/11] time: Add mechanism to recognize clocksource in time_get

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Message-ID: <87tv00nhje.fsf@nanos.tec.linutronix.de>
Date:   Thu, 28 May 2020 18:36:05 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Jianyong Wu <jianyong.wu@....com>, netdev@...r.kernel.org,
        yangbo.lu@....com, john.stultz@...aro.org, pbonzini@...hat.com,
        sean.j.christopherson@...el.com, maz@...nel.org,
        richardcochran@...il.com, Mark.Rutland@....com, will@...nel.org,
        suzuki.poulose@....com, steven.price@....com
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org,
        Steve.Capper@....com, Kaly.Xin@....com, justin.he@....com,
        Wei.Chen@....com, jianyong.wu@....com, nd@....com
Subject: Re: [RFC PATCH v12 05/11] time: Add mechanism to recognize clocksource in time_get_snapshot

Jianyong Wu <jianyong.wu@....com> writes:
> From: Thomas Gleixner <tglx@...utronix.de>
> diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
> index 7cb09c4cf21c..a8f65b3e4ec8 100644
> --- a/kernel/time/clocksource.c
> +++ b/kernel/time/clocksource.c
> @@ -928,6 +928,9 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq)
>  
>  	clocksource_arch_init(cs);
>  
> +if (WARN_ON_ONCE((unsigned int)cs->id >= CSID_MAX))
> +		cs->id = CSID_GENERIC;
> +

This is white space damaged and certainly not from me.