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PCI: add acpi_find_root_bridge_handle 

Consolidate finding of a root bridge and getting its handle to the one
inline function. It's cut & pasted on multiple places. Use this new
inline in those.

Cc: kristen.c.accardi@intel.com
Acked-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Jiri Slaby 2008-08-18 20:22:54 +02:00 committed by Jesse Barnes
parent e0d94beead
commit 056c58e8eb
3 changed files with 13 additions and 10 deletions
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5
drivers/pci/hotplug/acpi_pcihp.c
View File

@ -404,10 +404,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
* OSHP within the scope of the hotplug controller and its parents,
* upto the host bridge under which this controller exists.
*/
while (pdev->bus->self)
pdev = pdev->bus->self;
handle = acpi_get_pci_rootbridge_handle(pci_domain_nr(pdev->bus),
pdev->bus->number);
handle = acpi_find_root_bridge_handle(pdev);
if (handle) {
acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
dbg("Trying to get hotplug control for %s\n",

7
drivers/pci/pcie/aer/aerdrv_acpi.c
View File

@ -36,12 +36,7 @@ int aer_osc_setup(struct pcie_device *pciedev)
if (acpi_pci_disabled)
return -1;
/* Find root host bridge */
while (pdev->bus->self)
pdev = pdev->bus->self;
handle = acpi_get_pci_rootbridge_handle(
pci_domain_nr(pdev->bus), pdev->bus->number);
handle = acpi_find_root_bridge_handle(pdev);
if (handle) {
pcie_osc_support_set(OSC_EXT_PCI_CONFIG_SUPPORT);
status = pci_osc_control_set(handle,

11
include/linux/pci-acpi.h
View File

@ -57,6 +57,15 @@ static inline acpi_status pcie_osc_support_set(u32 flags)
{
return __pci_osc_support_set(flags, PCI_EXPRESS_ROOT_HID_STRING);
}
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{
/* Find root host bridge */
while (pdev->bus->self)
pdev = pdev->bus->self;
return acpi_get_pci_rootbridge_handle(pci_domain_nr(pdev->bus),
pdev->bus->number);
}
#else
#if !defined(AE_ERROR)
typedef u32 acpi_status;
@ -66,6 +75,8 @@ static inline acpi_status pci_osc_control_set(acpi_handle handle, u32 flags)
{return AE_ERROR;}
static inline acpi_status pci_osc_support_set(u32 flags) {return AE_ERROR;}
static inline acpi_status pcie_osc_support_set(u32 flags) {return AE_ERROR;}
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{ return NULL; }
#endif
#endif /* _PCI_ACPI_H_ */