linux-kernel - Re: FIX Me in pgtable.h

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Date:	Tue, 23 Sep 2014 20:21:51 -0700
From:	Laura Abbott <lauraa@...eaurora.org>
To:	nick <yocto6@...il.com>, linux@....linux.org.uk
CC:	steve.capper@....com, will.deacon@....com,
	linux-kernel@...r.kernel.org, steve.capper@...aro.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: FIX Me in pgtable.h

On 9/23/2014 6:04 AM, nick wrote:
> Greetings Arm Maintainers,
> I am wondering about the fix me in pgtable.h for define kern_addr_valid and how to set it to a correct
> value as you state that this needs to be fixed as the defined macro is still 1. This is probably incorrect
> and should be changed.
> Thanks,
> Nick
>

It's not clear to me how valuable fixing kern_addr_valid would actually
be for arm. It seems to be used in exactly one place, fs/proc/kcore.c
and the associated Kconfig is explicitly marked if !ARM. Nearly all
other archs minus x86, arm64 and sparc are in the same boat as well.

Thanks,
Laura

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