Hi Bjorn, Thanks for taking time to look at those patches! On Wed, Mar 9, 2016 at 7:54 PM, Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote: > On Wed, Feb 24, 2016 at 06:11:52PM -0800, Yinghai Lu wrote: >> Add pci_find_root_bus_resource() to return root bus resource >> for input resource. >> >> For sparc mem64 support, We need that host bridge window res: >> 1. we need direct parent for request_resource_conflict() calling in >> pci_register_legacy_regions(). >> 2. check if return is NULL to decide if region is valid or not. > > Whenever somebody proposes a new interface that's only required for > one architecture, the obvious question is "what is unique about that > architecture that makes the new interface necessary?" Good point. I was thinking to keep the current behavior in sparc64 arch, as I don't want to break old setups. Later we can try to make it more like arch. > > Neither this patch nor the follow-on patch that adds the use of > pci_find_root_bus_resource() answers that question. > would be better to keep those two in same patch? Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
