linux-kernel - Re: [PATCH v5 3/6] arch/x86/mm/pat: export pat

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Date:	Mon, 4 May 2015 17:29:17 +0200
From:	Borislav Petkov <bp@...e.de>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	mingo@...e.hu, tglx@...utronix.de, hpa@...or.com,
	plagnioj@...osoft.com, tomi.valkeinen@...com,
	daniel.vetter@...el.com, airlied@...ux.ie, dledford@...hat.com,
	awalls@...metrocast.net, syrjala@....fi, luto@...capital.net,
	mst@...hat.com, cocci@...teme.lip6.fr,
	linux-kernel@...r.kernel.org,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Juergen Gross <jgross@...e.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Dave Airlie <airlied@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>, x86@...nel.org
Subject: Re: [PATCH v5 3/6] arch/x86/mm/pat: export pat_enabled()

On Thu, Apr 30, 2015 at 01:25:17PM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> 
> Two Linux device drivers cannot work with PAT and the work
> required to make them work is significant. There is not
> enough motivation to convert these drivers over to use
> PAT properly, the compromise reached is to let drivers
> that cannot be ported to PAT check if PAT was enabled
> and if so fail on probe with a recommendation to boot
> with the "nopat" kernel parameter.
> 
> Cc: Andy Walls <awalls@...metrocast.net>
> Cc: Doug Ledford <dledford@...hat.com>
> Cc: Andy Lutomirski <luto@...capital.net>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Juergen Gross <jgross@...e.com>
> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
> Cc: Dave Airlie <airlied@...hat.com>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Borislav Petkov <bp@...e.de>
> Cc: Michael S. Tsirkin <mst@...hat.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: x86@...nel.org
> Signed-off-by: Luis R. Rodriguez <mcgrof@...e.com>
> ---
>  arch/x86/mm/pat.c | 1 +
>  1 file changed, 1 insertion(+)

Applied, thanks.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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