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@@ -242,6 +242,15 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev,
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return found_dev;
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}
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+/*
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+ * Called when:
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+ * - XenBus state has been reconfigure (pci unplug). See xen_pcibk_remove_device
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+ * - XenBus state has been disconnected (guest shutdown). See xen_pcibk_xenbus_remove
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+ * - 'echo BDF > unbind' on pciback module with no guest attached. See pcistub_remove
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+ * - 'echo BDF > unbind' with a guest still using it. See pcistub_remove
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+ *
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+ * As such we have to be careful.
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+ */
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void pcistub_put_pci_dev(struct pci_dev *dev)
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{
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struct pcistub_device *psdev, *found_psdev = NULL;
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