[PATCH v8 6/9] pci: Introduce a domain number for pci_host_bridge.

[Bjorn Helgaas]

On Tue, Jul 8, 2014 at 4:46 AM, Liviu Dudau <Liviu.Dudau at arm.com> wrote:
> On Tue, Jul 08, 2014 at 01:59:54AM +0100, Bjorn Helgaas wrote:

>> I wonder if it would help to make a weak pci_domain_nr() function that
>> returns "bridge->domain_nr".  Then each arch could individually drop its
>> pci_domain_nr() definition as it was converted, e.g., something like this:
>>
>>   - Convert every arch pci_domain_nr() from a #define to a non-inline
>>     function
>>   - Add bridge.domain_nr, initialized from pci_domain_nr()
>>   - Add a weak generic pci_domain_nr() that returns bridge.domain_nr
>>   - Add a way to create a host bridge in a specified domain, so we can
>>     initialize bridge.domain_nr without using pci_domain_nr()
>>   - Convert each arch to use the new creation mechanism and drop its
>>     pci_domain_nr() implementation
>
> I will try to propose a patch implementing this.

I think this is more of an extra credit, cleanup sort of thing.  I
don't think it advances your primary goal of (I think) getting arm64
PCI support in.  So my advice is to not worry about unifying domain
handling until later.

Bjorn