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    SubjectRe: [RFC PATCH 1/3] MIPS: PCI: Use pci_bus_remove_resources()/pci_bus_add_resource() to set up root resources
    On Thu, Aug 25, 2011 at 5:14 PM, Deng-Cheng Zhu <> wrote:
    > 2011/8/25 Bjorn Helgaas <>:
    >> No, I just mean that I don't see why you need this patch at all.  If
    >> you pass the list of bus resources to pci_create_bus(), there's no
    >> need to fix anything up later.  Or am I missing something?
    > Well, doing the root resource fixups in here is a *paranoid* way. It's to
    > deal with the 'unlikely' circumstance where controller_resources() returns
    > the NULL pointer in pcibios_scanbus() due to memory allocation failure.
    > Most of the time (always) it's nothing more than repeating the resource
    > list setup. But maybe we can do something like this:
    > if (unlikely(!dev && list_empty(&bus->resources))
    >        pcibios_setup_root_resources(bus, hose);
    > What do you think?

    I don't think it's worth it. Just check for failure of
    controller_resources(), and if it fails, skip the pci_create_bus()
    call. You've already printed a message (you might add the PCI
    domain/bus number).

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      Last update: 2011-08-26 01:25    [W:0.045 / U:12.528 seconds]
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