Messages in this thread | | | Date | Wed, 26 Mar 2008 22:47:02 +0000 | From | Alan Cox <> | Subject | Re: [patch] pci: revert "PCI: remove transparent bridge sizing" |
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> I dunno. I'm not going to do anything in this area before 2.6.25 is out > because this *does* make me a bit nervous, but if somebody wants to think > about this and perhaps write patches for testing, that would be good.
One way to kill off some of the assumptions and gunge would be to add pci_resource_assigned(resource) [or indeed just resource_assigned()]. Iomap has similar problems - we have no portable defined "not mapped" at the moment, although we use NULL technically mmio maps of 0 end up at 0 in the implementation today.
Alan
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