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Message-ID: <alpine.DEB.2.21.1910161224050.2046@nanos.tec.linutronix.de>
Date:   Wed, 16 Oct 2019 12:26:16 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "Jianyong Wu (Arm Technology China)" <Jianyong.Wu@....com>
cc:     "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>,
        "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 (Arm Technology China)" <Kaly.Xin@....com>,
        "Justin He (Arm Technology China)" <Justin.He@....com>,
        nd <nd@....com>
Subject: RE: [PATCH v5 3/6] timekeeping: Add clocksource to
 system_time_snapshot

On Wed, 16 Oct 2019, Jianyong Wu (Arm Technology China) wrote:
> On Wed, 16 Oct 2019, Thomas Gleixner wrote:
> > On Tue, 15 Oct 2019, Jianyong Wu wrote:
> > +/* Enum to give clocksources a unique identifier */ enum
> > +clocksource_ids {
> > +	CSID_GENERIC		= 0,
> > +	CSID_ARM_ARCH_COUNTER,
> > +	CSID_MAX,
> > +};
> > +
> 
> Does this mean I must add clocksource id for all kinds of ARCHs and
> update all the code which have checked clocksource in the old way?

What is the old way? No code exists which can access the current
clocksource pointer because the core code does not expose it at all.

Thanks,

	tglx

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