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ACPI / hotplug / PCI: Drop acpiphp_bus_add() 

acpiphp_bus_add() is only called from one place, so move the code out
of it into that place and drop it.  Also make that code use
func_to_acpi_device() to get the struct acpi_device pointer it needs
instead of calling acpi_bus_get_device() which may be costly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki 2014-02-04 00:39:58 +01:00
parent bbcbfc0eed
commit b6708fbf98
1 changed files with 6 additions and 16 deletions
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22
drivers/pci/hotplug/acpiphp_glue.c
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@ -491,20 +491,6 @@ static unsigned char acpiphp_max_busnr(struct pci_bus *bus)
return max;
}
/**
* acpiphp_bus_add - Scan ACPI namespace subtree.
* @handle: ACPI object handle to start the scan from.
*/
static void acpiphp_bus_add(acpi_handle handle)
{
struct acpi_device *adev = NULL;
acpi_bus_scan(handle);
acpi_bus_get_device(handle, &adev);
if (acpi_device_enumerated(adev))
acpi_device_set_power(adev, ACPI_STATE_D0);
}
static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
{
struct acpiphp_func *func;
@ -544,9 +530,13 @@ static int acpiphp_rescan_slot(struct acpiphp_slot *slot)
{
struct acpiphp_func *func;
list_for_each_entry(func, &slot->funcs, sibling)
acpiphp_bus_add(func_to_handle(func));
list_for_each_entry(func, &slot->funcs, sibling) {
struct acpi_device *adev = func_to_acpi_device(func);
acpi_bus_scan(adev->handle);
if (acpi_device_enumerated(adev))
acpi_device_set_power(adev, ACPI_STATE_D0);
}
return pci_scan_slot(slot->bus, PCI_DEVFN(slot->device, 0));
}