Re: PCI<->PCI bridges, transparent resource fix

[Ivan Kokshaysky]

On Fri, Aug 09, 2002 at 10:06:30AM +0200, Benjamin Herrenschmidt wrote:
> BTW, in the case of really closed resources, you just removed the "else"
> case. I don't have the kernel sources at hand at the moment (still
> on vacation ;) So I can't check how pci_dev is initialized on alloc,

It's zeroed.

> but shouldn't we make sure the resoure pointer of the child is either
> NULL or points to some properly zeroed out resource structure ?

I'm not sure whether it could happen in current 2.4/2.5 code, but
if pci_read_bridge_bases() is called from hotplug code, and
bridge's window changes from "enabled" to "disabled" (card removed),
then yes, we must set resource.flags = 0.

Ivan.