sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file

[safe/jmp/linux-2.6] / drivers / acpi / bus.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 0fb6b2a..7411915 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -94,36 +94,33 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
 
 EXPORT_SYMBOL(acpi_bus_get_device);
 
-int acpi_bus_get_status(struct acpi_device *device)
+acpi_status acpi_bus_get_status_handle(acpi_handle handle,
+                                      unsigned long long *sta)
 {
-       acpi_status status = AE_OK;
-       unsigned long long sta = 0;
-
+       acpi_status status;
 
-       if (!device)
-               return -EINVAL;
+       status = acpi_evaluate_integer(handle, "_STA", NULL, sta);
+       if (ACPI_SUCCESS(status))
+               return AE_OK;
 
-       /*
-        * Evaluate _STA if present.
-        */
-       if (device->flags.dynamic_status) {
-               status =
-                   acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
-               if (ACPI_FAILURE(status))
-                       return -ENODEV;
-               STRUCT_TO_INT(device->status) = (int)sta;
+       if (status == AE_NOT_FOUND) {
+               *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
+                      ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
+               return AE_OK;
        }
+       return status;
+}
 
-       /*
-        * According to ACPI spec some device can be present and functional
-        * even if the parent is not present but functional.
-        * In such conditions the child device should not inherit the status
-        * from the parent.
-        */
-       else
-               STRUCT_TO_INT(device->status) =
-                   ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
-                   ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
+int acpi_bus_get_status(struct acpi_device *device)
+{
+       acpi_status status;
+       unsigned long long sta;
+
+       status = acpi_bus_get_status_handle(device->handle, &sta);
+       if (ACPI_FAILURE(status))
+               return -ENODEV;
+
+       STRUCT_TO_INT(device->status) = (int) sta;
 
        if (device->status.functional && !device->status.present) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: "
@@ -135,14 +132,12 @@ int acpi_bus_get_status(struct acpi_device *device)
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n",
                          device->pnp.bus_id,
                          (u32) STRUCT_TO_INT(device->status)));
-
        return 0;
 }
-
 EXPORT_SYMBOL(acpi_bus_get_status);
 
 void acpi_bus_private_data_handler(acpi_handle handle,
-                                  u32 function, void *context)
+                                  void *context)
 {
        return;
 }