Andi Kleen wrote:
quoted text
>>  
>> +config PCI_DOMAINS
>> +	bool "PCI domain support"
>> +	depends on PCI
> 
> I don't think this should be a config option.

CONFIG_PCI_DOMAINS is referenced in arch-neutral code, so the symbol 
_must_ be defined.

It can be hidden, perhaps, if that makes our x86 maintainer happy :)


quoted text
> But there should be a pci=... option with Documentation to turn it off at runtime

OK


quoted text
>> +static inline int pci_proc_domain(struct pci_bus *bus)
>> +{
>> +	return pci_domain_nr(bus);
>> +}
> 
> The second function is redundant? 

No, it's a hook we must implement, when CONFIG_PCI_DOMAINS is enabled.

	Jeff



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