/* Core PCI functionality used only by PCI hotplug */ #include <linux/pci.h> #include <linux/export.h> #include "pci.h" int pci_hp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; int pass, busnr, start = parent->busn_res.start; int end = parent->busn_res.end; for (busnr = start; busnr <= end; busnr++) { if (!pci_find_bus(pci_domain_nr(parent), busnr)) break; } if (busnr-- > end) { printk(KERN_ERR "No bus number available for hot-added bridge %s\n", pci_name(dev)); return -1; } for (pass = 0; pass < 2; pass++) busnr = pci_scan_bridge(parent, dev, busnr, pass); if (!dev->subordinate) return -1; return 0; } EXPORT_SYMBOL_GPL(pci_hp_add_bridge);