linux-kernel - Re: linux-next: Tree for Sep 1

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Message-ID: <alpine.DEB.2.11.1409080914370.20388@gentwo.org>
Date:	Mon, 8 Sep 2014 09:15:40 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Nicolas Pitre <nicolas.pitre@...aro.org>
cc:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Mark Brown <broonie@...nel.org>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Russell King <rmk+kernel@....linux.org.uk>,
	Tejun Heo <tj@...nel.org>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: linux-next: Tree for Sep 1

On Fri, 5 Sep 2014, Nicolas Pitre wrote:

> > -	return raw_cpu_read(base->percpu_base);
> > +	return raw_cpu_read(*base->percpu_base);
>
> Isn't the pointer dereference supposed to be performed _outside_ the per
> CPU accessor?

It looks like percpu_base is a regular pointer to an offset. This is the
correct way to refer to get the offset and load the value that the offset
points to.

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