linux-kernel - Re: [PATCH v4 1/3] clocksource: timer-keystone: introduce clocksource driver for Keystone

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Message-ID: <alpine.DEB.2.02.1402041715220.24986@ionos.tec.linutronix.de>
Date:	Tue, 4 Feb 2014 17:24:37 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Ivan Khoronzhuk <ivan.khoronzhuk@...com>
cc:	santosh.shilimkar@...com, rob@...dley.net, linux@....linux.org.uk,
	galak@...eaurora.org, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	daniel.lezcano@...aro.org, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, grygorii.strashko@...com
Subject: Re: [PATCH v4 1/3] clocksource: timer-keystone: introduce clocksource
 driver for Keystone

On Tue, 4 Feb 2014, Ivan Khoronzhuk wrote:
> +	keystone_timer_writel(off, TCR);
> +	/* here we have to be sure the timer has been disabled */
> +	wmb();

We have explicit writew_relaxed and writew. Why open coding the
barriers?

Thanks,

	tglx
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