net: Avoid extra wakeups of threads blocked in wait_for_packet()
[linux-2.6.git] / include / linux / pci-acpi.h
1 /*
2  * File         pci-acpi.h
3  *
4  * Copyright (C) 2004 Intel
5  * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
6  */
7
8 #ifndef _PCI_ACPI_H_
9 #define _PCI_ACPI_H_
10
11 #include <linux/acpi.h>
12
13 #ifdef CONFIG_ACPI
14 static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
15 {
16         struct pci_bus *pbus = pdev->bus;
17         /* Find a PCI root bus */
18         while (pbus->parent)
19                 pbus = pbus->parent;
20         return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
21                                               pbus->number);
22 }
23
24 static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
25 {
26         if (pbus->parent)
27                 return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
28         return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
29                                               pbus->number);
30 }
31 #else
32 static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
33 { return NULL; }
34 #endif
35
36 #endif  /* _PCI_ACPI_H_ */