Messages in this thread | | | Subject | Re: [PATCH 3/3] PCI: Set pref for mem64 resource of pcie device | From | Benjamin Herrenschmidt <> | Date | Fri, 10 Apr 2015 09:31:42 +1000 |
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On Thu, 2015-04-09 at 11:31 -0700, Yinghai Lu wrote: > On Thu, Apr 9, 2015 at 1:54 AM, Benjamin Herrenschmidt > <benh@kernel.crashing.org> wrote: > > On Wed, 2015-04-08 at 23:26 -0500, Bjorn Helgaas wrote: > >> I'm not planning to review this until after the merge window opens, > >> but I took a quick glance, and I agree with Ben. I don't want to add > >> a new IORESOURCE_ flag. I think a pci_resource_compatible() helper is > >> a great idea. > > > > So the new resource flag was handy here still regardless of the > > implementation choice because otherwise, we have to do the whole tree > > walk to check for "PCI Express only path". > > > > *But*, this is a property of the device as a whole, not of the resource, > > so we could instead have a pci_dev flag established at probe time that > > indicates that the path to a given device is PCIe only. > > > That way, you avoid the special resource flag alltogether. > > in the assign path: pci_bus_alloc_resource() does not take dev pointer. > > should we make > > int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, > > to > > int pci_bus_alloc_resource(struct pci_bus *bus, struct pci_dev *dev, > struct resource *res,
Do you need to pass bus if you have dev ?
Do we have any caller that doesn't have dev available ?
Cheers, Ben.
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