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Date:	Thu, 18 Sep 2014 23:52:03 -0400
From:	Tejun Heo <>
To:	Christoph Lameter <>
Cc:	Bartlomiej Zolnierkiewicz <>,
	Mark Brown <>,,,,
	Russell King <>,
	Kyungmin Park <>
Subject: Re: linux-next: Tree for Sep 1

On Tue, Sep 02, 2014 at 10:00:07AM -0500, Christoph Lameter wrote:
> On Tue, 2 Sep 2014, Christoph Lameter wrote:
> > Oww.. This is double indirection deal there. A percpu offset pointing to
> > a pointer?
> >
> > Generally the following is true (definition from
> > include/asm-generic/percpu.h that is used for ARM for raw_cpu_read):
> >
> > #define raw_cpu_read_4(pcp)             (*raw_cpu_ptr(&(pcp)))
> I think what the issue is that we dropped the fetch of the percpu offset
> in the patch. Instead we are using the address of the variable that
> contains the offset. Does this patch fix it?
> Subject: irqchip: Properly fetch the per cpu offset
> The raw_cpu_read() conversion dropped the fetch of the offset
> from base->percpu_base in gic_get_percpu_base.
> Signed-off-by: Christoph Lameter <>

Applied to percpu/for-3.18-consistent-ops.


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