pci: Fix INTx routing notifier recursion
For some reason we recurse to fire the INTx routing notifier for each child of a bus, for each possible device of a bus. That means that if we add a root port, the notifier gets called for that bridge 256 times. If we add an upstream switch behind that root port, 256^2. But of course we need a downstream switch, 256^3. This starts to be noticeable. Stop the insanity. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -1215,11 +1215,12 @@ void pci_bus_fire_intx_routing_notifier(PCIBus *bus)
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if (dev && dev->intx_routing_notifier) {
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if (dev && dev->intx_routing_notifier) {
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dev->intx_routing_notifier(dev);
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dev->intx_routing_notifier(dev);
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}
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}
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}
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QLIST_FOREACH(sec, &bus->child, sibling) {
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QLIST_FOREACH(sec, &bus->child, sibling) {
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pci_bus_fire_intx_routing_notifier(sec);
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pci_bus_fire_intx_routing_notifier(sec);
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}
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}
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}
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}
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}
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void pci_device_set_intx_routing_notifier(PCIDevice *dev,
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void pci_device_set_intx_routing_notifier(PCIDevice *dev,
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PCIINTxRoutingNotifier notifier)
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PCIINTxRoutingNotifier notifier)
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