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

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Message-ID: <HE1PR0802MB2555D67ACAF18A52DE8D9278F48F0@HE1PR0802MB2555.eurprd08.prod.outlook.com>
Date:   Fri, 29 May 2020 01:05:25 +0000
From:   Jianyong Wu <Jianyong.Wu@....com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "yangbo.lu@....com" <yangbo.lu@....com>,
        "john.stultz@...aro.org" <john.stultz@...aro.org>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "maz@...nel.org" <maz@...nel.org>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        Mark Rutland <Mark.Rutland@....com>,
        "will@...nel.org" <will@...nel.org>,
        Suzuki Poulose <Suzuki.Poulose@....com>,
        Steven Price <Steven.Price@....com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Steve Capper <Steve.Capper@....com>,
        Kaly Xin <Kaly.Xin@....com>, Justin He <Justin.He@....com>,
        Wei Chen <Wei.Chen@....com>, nd <nd@....com>
Subject: RE: [RFC PATCH v12 05/11] time: Add mechanism to recognize
 clocksource in time_get_snapshot

Hi Thomas,

> -----Original Message-----
> From: Thomas Gleixner <tglx@...utronix.de>
> Sent: Friday, May 29, 2020 12:36 AM
> 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 <Mark.Rutland@....com>;
> will@...nel.org; Suzuki Poulose <Suzuki.Poulose@....com>; Steven Price
> <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
> <Steve.Capper@....com>; Kaly Xin <Kaly.Xin@....com>; Justin He
> <Justin.He@....com>; Wei Chen <Wei.Chen@....com>; Jianyong Wu
> <Jianyong.Wu@....com>; nd <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.

Sorry, I will fix it.

Thanks
Jianyong