On Thu, Oct 04, 2007 at 11:19:33AM +1000, Benjamin Herrenschmidt wrote: > > 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. Good one. I will certainly try out your idea and will update the list tomorrow.
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