Re: [patch take 2][Intel-IOMMU] Fix for IOMMU early crash

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> Index: 2.6-mm/include/linux/pci.h
> ===================================================================
> --- 2.6-mm.orig/include/linux/pci.h	2007-10-03 13:48:20.000000000 -0700
> +++ 2.6-mm/include/linux/pci.h	2007-10-03 13:49:08.000000000 -0700
> @@ -195,6 +195,7 @@
>  #ifdef CONFIG_PCI_MSI
>  	struct list_head msi_list;
>  #endif
> +	void		*iommu_private;	/* hook for IOMMU specific extension */
>  };

I'm not fan of this. That would imply that iommu stuff is specific to
PCI or that sort of thing.

Why don't you use the new struct dev_archdata mechanism ? That's what I
use on powerpc to provide optional iommu linkage to any device in the
system.

Ben.


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