linux-kernel - Re: [PATCH 1/1] memory: tegra_ahb_enable_smmu() depends on TEGRA_IOMMU

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Date:	Thu, 21 Feb 2013 13:28:51 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Hiroshi Doyu <hdoyu@...dia.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] memory: tegra_ahb_enable_smmu() depends on
	TEGRA_IOMMU_SMMU

On Wed, Feb 20, 2013 at 10:54:38AM -0700, Stephen Warren wrote:
> On 02/11/2013 10:30 AM, Hiroshi Doyu wrote:
> > Hiroshi Doyu <hdoyu@...dia.com> wrote @ Wed, 06 Feb 2013 21:16:35 +0200 (EET):
> > 
> >> Hi Russell,
> >>
> >> Stephen Warren <swarren@...dotorg.org> wrote @ Wed, 6 Feb 2013 19:51:46 +0100:
> >>
> >>> On 02/06/2013 11:34 AM, Hiroshi Doyu wrote:
> >>>> New SoC, Tegra114 also uses SMMU. Change tegra_ahb_enable_smmu()'s
> >>>> dependency from ARCH_TEGRA_3x_SOC to TEGRA_IOMMU_SMMU. No need to edit
> >>>> whenever a new Tegra SoC comes.
> >>>>
> >>>> The following combination caused build error, which this patch fixes.
> >>>>
> >>>> CONFIG_ARCH_TEGRA_2x_SOC=y
> >>>> \# CONFIG_ARCH_TEGRA_3x_SOC is not set
> >>>> CONFIG_ARCH_TEGRA_114_SOC=y
> >>>>
> >>>> drivers/iommu/tegra-smmu.c:485: undefined reference to 'tegra_ahb_enable_smmu'
> >>>
> >>> Tested-by: Stephen Warren <swarren@...dia.com>
> >>>
> >>> Russell, I assume Hiroshi should upload this to your patch tracker? It's
> >>> needed for 3.9.
> >>
> >> FYI: Submitted as:
> >> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7640/1
> > 
> > Russell,
> > 
> > Is the above ok for you?
> > Please let me know if still I need to do something.
> 
> Russell, will this patch make it into your tree for 3.9? Do you think it
> should go through some other tree? Thanks.

I'll merge it, and I think it's a minor fix.  Should it be copied to
stable?  If so, which ones are affected?
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