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

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

>-	} else {
>-		/*
>-		 * Ugh. We don't know enough about this bridge. Just assume
>-		 * that it's entirely transparent.
>-		 */
>-		printk(KERN_ERR "Unknown bridge resource %d: assuming transparent\n", 0);
>-		child->resource[0] = child->parent->resource[0];
> 	}

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,
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 know the "closed resources" patch we used to have in some PPC kernel
trees did that explicitely in the "else" case here.

Ben.