linux-kernel - Re: [PATCH v3 linux-next] iommu: Enable LPAE pagetable on ARM and ARM64 only

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Message-ID: <6851919.VIGEV8htgx@avalon>
Date:	Tue, 24 Feb 2015 02:23:48 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Vincent Stehlé <vincent.stehle@...oste.net>
Cc:	iommu@...ts.linux-foundation.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v3 linux-next] iommu: Enable LPAE pagetable on ARM and ARM64 only

On Tuesday 24 February 2015 01:20:21 Vincent Stehlé wrote:
> LPAE iommu page table makes sense only for ARM and ARM64 architectures. Add
> the corresponding dependency in Kconfig (and enable for COMPILE_TEST, too,
> as per Laurent's suggestion).
> 
> Signed-off-by: Vincent Stehlé <vincent.stehle@...oste.net>
> Suggested-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Cc: Will Deacon <will.deacon@....com>

Now,

Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
> 
> On 02/24/2015 01:02 AM, Laurent Pinchart wrote:
> > Shouldn't this be ARM || ARM64 || COMPILE_TEST ?
> 
> Hi Laurent,
> 
> It makes perfect sense; thanks. I completely forgot, as I have yet to see
> one of those. Here is v3 of the patch.
> 
> Best regards,
> 
> V.
> 
> 
> Changes since v2:
> - Add condition on ARM64
> 
> Changes since v1:
> - Add condition on COMPILE_TEST
> 
> 
>  drivers/iommu/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index baa0d97..a440922 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -22,6 +22,7 @@ config IOMMU_IO_PGTABLE
> 
>  config IOMMU_IO_PGTABLE_LPAE
>  	bool "ARMv7/v8 Long Descriptor Format"
> +	depends on ARM || ARM64 || COMPILE_TEST
>  	select IOMMU_IO_PGTABLE
>  	help
>  	  Enable support for the ARM long descriptor pagetable format.

-- 
Regards,

Laurent Pinchart

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