linux-kernel - Re: [PATCH 1/2] [for 3.4] drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS]

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Message-ID: <6AE080B68D46FC4BA2D2769E68D765B708100EF3@039-SN2MPN1-023.039d.mgd.msft.net>
Date:	Mon, 15 Oct 2012 15:03:07 +0000
From:	Tabi Timur-B04825 <B04825@...escale.com>
To:	Tabi Timur-B04825 <B04825@...escale.com>
CC:	"linuxppc-dev@...ux.freescale.net" <linuxppc-dev@...ux.freescale.net>,
	Kumar Gala <galak@...nel.crashing.org>,
	Wood Scott-B07421 <B07421@...escale.com>,
	Anatolij Gustschin <agust@...x.de>,
	"geert@...ux-m68k.org" <geert@...ux-m68k.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] [for 3.4] drivers/virt: the Freescale hypervisor
 driver doesn't need to check MSR[GS]

On Thu, May 17, 2012 at 2:10 PM, Timur Tabi <timur@...escale.com> wrote:
> The MSR[GS] bit indicates whether the kernel is running in processor guest
> state mode, but such a check is unnecessary.  The driver already checks
> for the /hypervisor node and the fsl,hv-version property, so it already
> knows that it's running under the Freescale hypervisor.
>
> There is nothing in the driver that inherently requires guest state,
> anyway.
>
> This fixes a break that can occur in some randconfig builds.
>
> Signed-off-by: Timur Tabi <timur@...escale.com>
> ---

Kumar, I posted this patch back in May.  Can you apply it, please?  It
fixes a build break.

-- 
Timur Tabi
Linux kernel developer at Freescale
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