From 859ac9a4be0c753cece0e30a2e4a65fd2cdcaeee Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 21 Sep 2009 19:29:50 +0000 Subject: ACPI: identify device tree root by null parent pointer, not ACPI_BUS_TYPE We can identify the root of the ACPI device tree by the fact that it has no parent. This is simpler than passing around ACPI_BUS_TYPE_SYSTEM and will help remove special treatment of the device tree root. Currently, we add the root by hand with ACPI_BUS_TYPE_SYSTEM. If we traverse the tree treating the root as just another device and use acpi_get_type(), the root shows up as ACPI_TYPE_DEVICE. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- include/acpi/acpi_bus.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/acpi') diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 8456e8cbf9f..bc7a69516dc 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -70,7 +70,6 @@ enum acpi_bus_device_type { ACPI_BUS_TYPE_POWER, ACPI_BUS_TYPE_PROCESSOR, ACPI_BUS_TYPE_THERMAL, - ACPI_BUS_TYPE_SYSTEM, ACPI_BUS_TYPE_POWER_BUTTON, ACPI_BUS_TYPE_SLEEP_BUTTON, ACPI_BUS_DEVICE_TYPE_COUNT -- cgit v1.2.3