On Wed, Jan 27, 2010 at 01:10:56PM +1100, Benjamin Herrenschmidt wrote: > > > Cc'ing Ben for PPC. Ben, should PPC use pci_scan_device when probing > > its root busses? Sounds like it just uses pci_device_add for each one > > it finds instead? > > > > If you don't actually need scanning (though what about hotplug?) we can > > move the call to device_add instead... > > Ok so I looked at the code and the problem goes way beyond root busses. > > Basically, powerpc can use the code in arch/powerpc/kernel/pci_of_scan.c > to "generate" the pci_dev without using config space probing or at least > using as little of it as possible, using the firmware device-tree > information instead. > > This is also probably going to be moved to a more generic place and > extended to be used optionally by other architectures. Yes, having it under drivers/pci/ somewhere would be a big improvement, that way we'd actually see it when trying to do cleanups and wouldn't accidentally break your architectures. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- 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
