Re: [PATCH] PCI: remove pcibios_scan_all_fns()

From: Matthew Wilcox
Date: Tue Jun 23 2009 - 16:57:19 EST


On Tue, Jun 23, 2009 at 01:34:46PM -0700, Jeremy Fitzhardinge wrote:
> On 06/23/09 12:08, Matthew Wilcox wrote:
> > I think simply materialising them, either the way the OF code does,
> > or the way the IOV code does is the best route forwards.
> >
>
> On reflection, I think this will work. We have a Xen pci passthrough
> driver which gets told about the passed-through devices via xenbus, and
> does the appropriate setup. At first glance, there doesn't seem to be
> any problem with that code just explicitly instantiate the devices at
> the PCI level in the same way pci_scan_device does (ie,
> alloc_pci_device, initalize the dev struct, pci_setup_device).

Even easier actually, pci_scan_single_device() should do everything you want.

> Is that what you mean?
>
> IanC has looked at that code more closely, so perhaps he can confirm
> that this will work on our side.
>
> J
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--
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."
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