Re: [PATCH v7 03/25] iommu: Init iommu-groups support earlier, in core_initcall

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Hi Marek,

Thank you for the patch.

On Tuesday 19 May 2015 15:20:23 Marek Szyprowski wrote:
> iommu_group_alloc might be called very early in case of iommu controllers
> activated from of_iommu, so ensure that this part of subsystem is ready
> when devices are being populated from device-tree (core_initcall seems to
> be okay for this case).
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
>  drivers/iommu/iommu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index d4f527e56679..37a6aa8f318b 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -1207,7 +1207,7 @@ static int __init iommu_init(void)
> 
>  	return 0;
>  }
> -arch_initcall(iommu_init);
> +core_initcall(iommu_init);

I'll let Joerg comment on this, but this initcall ordering dance always makes 
me feel that something isn't quite right. Have you had a chance to look at the 
patch series I posted about a week ago to implement IOMMU probe deferral 
support ?

>  int iommu_domain_get_attr(struct iommu_domain *domain,
>  			  enum iommu_attr attr, void *data)

-- 
Regards,

Laurent Pinchart

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