PCI: read bridge windows before filling in subtractive decode resources (2adf7516) · Commits · 戴 / test

No functional change; this fills in the bus subtractive decode resources after reading the bridge window information rather than before. Also, print out the subtractive decode resources as we already do for the positive decode windows. Signed-off-by:

Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:

Jesse Barnes <jbarnes@virtuousgeek.org>

drivers/pci/probe.c

+10 −5

Original line number	Diff line number	Diff line
		@@ -403,14 +403,19 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
		child->secondary, child->subordinate,
		dev->transparent ? " (subtractive decode)" : "");

		if (dev->transparent) {
		for (i = 3; i < PCI_BUS_NUM_RESOURCES; i++)
		child->resource[i] = child->parent->resource[i - 3];
		}

		pci_read_bridge_io(child);
		pci_read_bridge_mmio(child);
		pci_read_bridge_mmio_pref(child);

		if (dev->transparent) {
		for (i = 3; i < PCI_BUS_NUM_RESOURCES; i++) {
		child->resource[i] = child->parent->resource[i - 3];
		if (child->resource[i])
		dev_printk(KERN_DEBUG, &dev->dev,
		" bridge window %pR (subtractive decode)\n",
		child->resource[i]);
		}
		}
		}

		static struct pci_bus * pci_alloc_bus(void)

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