ACPI: remove acpi_device_uid() and related stuff

Nobody uses acpi_device_uid(), so this patch removes it.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 1 insertions, 21 deletions

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7e031b90c09c..da11b5379dc8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1018,7 +1018,6 @@ static void acpi_device_set_id(struct acpi_device *device)
 {
         struct acpi_device_info *info = NULL;
         char *hid = NULL;
-        char *uid = NULL;
         struct acpica_device_id_list *cid_list = NULL;
         char *cid_add = NULL;
         acpi_status status;
@@ -1045,8 +1044,6 @@ static void acpi_device_set_id(struct acpi_device *device)
 
                 if (info->valid & ACPI_VALID_HID)
                         hid = info->hardware_id.string;
-                if (info->valid & ACPI_VALID_UID)
-                        uid = info->unique_id.string;
                 if (info->valid & ACPI_VALID_CID)
                         cid_list = &info->compatible_id_list;
                 if (info->valid & ACPI_VALID_ADR) {
@@ -1096,16 +1093,6 @@ static void acpi_device_set_id(struct acpi_device *device)
 
         if (hid)
                 acpi_add_id(device, hid);
-        if (uid) {
-                device->pnp.unique_id = ACPI_ALLOCATE_ZEROED(strlen (uid) + 1);
-                if (device->pnp.unique_id) {
-                        strcpy(device->pnp.unique_id, uid);
-                        device->flags.unique_id = 1;
-                }
-        }
-        if (!device->flags.unique_id)
-                device->pnp.unique_id = "";
-
         if (cid_list)
                 for (i = 0; i < cid_list->count; i++)
                         acpi_add_id(device, cid_list->ids[i].string);
@@ -1200,11 +1187,6 @@ static int acpi_add_single_object(struct acpi_device **child,
          * -----------------
          * TBD: Synch with Core's enumeration/initialization process.
          */
-
-        /*
-         * Hardware ID, Unique ID, & Bus Address
-         * -------------------------------------
-         */
         acpi_device_set_id(device);
 
         /*
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 6599b8cab45a..3cd9ccdcbd8f 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -142,7 +142,6 @@ struct acpi_device_status {
 struct acpi_device_flags {
         u32 dynamic_status:1;
         u32 bus_address:1;
-        u32 unique_id:1;
         u32 removable:1;
         u32 ejectable:1;
         u32 lockable:1;
@@ -151,7 +150,7 @@ struct acpi_device_flags {
         u32 performance_manageable:1;
         u32 wake_capable:1;     /* Wakeup(_PRW) supported? */
         u32 force_power_state:1;
-        u32 reserved:21;
+        u32 reserved:22;
 };
 
 /* File System */
@@ -186,7 +185,6 @@ struct acpi_device_pnp {
 #define acpi_device_bid(d)      ((d)->pnp.bus_id)
 #define acpi_device_adr(d)      ((d)->pnp.bus_address)
 char *acpi_device_hid(struct acpi_device *device);
-#define acpi_device_uid(d)      ((d)->pnp.unique_id)
 #define acpi_device_name(d)     ((d)->pnp.device_name)
 #define acpi_device_class(d)    ((d)->pnp.device_class)