linux-kernel - Re: [PATCH 1/2] x86: Add Isolated Memory Regions for Quark X1000

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Date:	Thu, 29 Jan 2015 13:27:20 +0000
From:	Bryan O'Donoghue <pure.logic@...us-software.ie>
To:	Ingo Molnar <mingo@...nel.org>
CC:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	x86@...nel.org, dvhart@...radead.org, andy.shevchenko@...il.com,
	boon.leong.ong@...el.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] x86: Add Isolated Memory Regions for Quark X1000

On 29/01/15 07:44, Ingo Molnar wrote:

Hi Ingo.

I'll transmit those changes in with the following exception

>> +	ret = imr_write(idev, reg, &imr, false);
>
> So 'ret' here gets mixed with other potential failure modes.
>
> If imr_write() fails here then that's a highly anomalous internal
> failure - so it might be better to add a WARN_ON(ret) or so.
>

imr_write() already does a WARN - so no need to do it again.
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