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1 | /* Core PCI functionality used only by PCI hotplug */ |
2 | |
3 | #include <linux/pci.h> |
4 | #include <linux/export.h> |
5 | #include "pci.h" |
6 | |
7 | int __ref pci_hp_add_bridge(struct pci_dev *dev) |
8 | { |
9 | struct pci_bus *parent = dev->bus; |
10 | int pass, busnr, start = parent->busn_res.start; |
11 | int end = parent->busn_res.end; |
12 | |
13 | for (busnr = start; busnr <= end; busnr++) { |
14 | if (!pci_find_bus(pci_domain_nr(parent), busnr)) |
15 | break; |
16 | } |
17 | if (busnr-- > end) { |
18 | printk(KERN_ERR "No bus number available for hot-added bridge %s\n", |
19 | pci_name(dev)); |
20 | return -1; |
21 | } |
22 | for (pass = 0; pass < 2; pass++) |
23 | busnr = pci_scan_bridge(parent, dev, busnr, pass); |
24 | if (!dev->subordinate) |
25 | return -1; |
26 | |
27 | return 0; |
28 | } |
29 | EXPORT_SYMBOL_GPL(pci_hp_add_bridge); |
30 |
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