linux-kernel - Re: [PATCH 3.8-stable] ARM: 7690/1: mm: fix CONFIG

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Date:	Thu, 25 Apr 2013 10:01:47 +0100
From:	Will Deacon <will.deacon@....com>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	Jonghwan Choi <jhbird.choi@...sung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>
Subject: Re: [PATCH 3.8-stable] ARM: 7690/1: mm: fix CONFIG_LPAE typos

On Thu, Apr 25, 2013 at 09:20:44AM +0100, Paul Bolle wrote:
> On Thu, 2013-04-25 at 17:02 +0900, Jonghwan Choi wrote:
> > This patch looks like it should be in the 3.8-stable tree, should we apply
> > it?
> 
> That would be only the setup.c chunk. That fixes a typo introduced in
> v3.4 (see commit e5ab85800820edd907d3f43f285e1232f84d5a41
> ("ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic
> MMU")). So, if that chunk is deemed appropriate for stable, you could
> consider the v3.4.y longterm tree too.

Even then, I don't think it's worth backporting this patch. membank->start
and membank->size are phys_addr_t, so with LPAE enabled, this check won't
trigger anyway. The #ifndef is just there for readability really (since the
printk message explicitly refers to 32-bit physical addresses).

So I wouldn't bother with this.

Will
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