tree bec7309d65b6ada54c86692df4cfa85a8d57137c
parent 616362de2fe224512fe105aec08f19f5470afb01
author Chen, Justin <justin.chen@hp.com> 1160514420 -0400
committer Len Brown <len.brown@intel.com> 1161930676 -0400

ACPI: optimize pci_rootbridge search

acpi_get_pci_rootbridge_handle() walks the ACPI name space
searching for seg, bus and the PCI_ROOT_HID_STRING --
returning the handle as soon as if find the match.

But the current codes always parses through the whole namespace because
the user_function find_pci_rootbridge() returns status=AE_OK when it finds the match.

Make the find_pci_rootbridge() return AE_CTRL_TERMINATE when it finds the match.
This reduces the ACPI namespace walk for acpi_get_pci_rootbridge_handle().

Signed-off-by: Justin Chen <justin.chen@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>