pci_scan_get_dev() in pci_scan_bus()

[Li-Ta Lo]

On Tue, 2004-03-02 at 16:34, Eric W. Biederman wrote:
> Li-Ta Lo <ollie at lanl.gov> writes:
> 
> > Eric,
> > 
> > I am reading the device tree/resource allocation code 
> > and trying to add more doxygen stuff. One thing I am not
> > queit sure is the pci_scan_get_dev() in pci_scan_bus().
> > 
> > 	for (devfn = min_devfn; devfn <= max_devfn; devfn++) {
> > 		uint32_t id, class;
> > 		uint8_t hdr_type;
> > 
> > 		/* First thing setup the device structure */
> > 		dev = pci_scan_get_dev(&old_devices, devfn);
> > 
> > My understanding is some pci devices are static devices too
> > and are already "enumerated" befor the pci_scan_bus() (actually,
> > the dev_enumerate()) is called and they are on the device
> > tree (or list) by the time pci_scan_bus() is called. The
> > pci_scan_get_dev() try to find the device under enumeration
> > on that list. Am I correct ?
> 
> Yes.  
> 

What happen if a device is listed as a static device in the
config file but does not actually exist in the physical system ?

Ollie