[Qemu-devel] [PATCH v2 3/5] block QMP: Drop query-block member "type" (type= in info block)

[Markus Armbruster <armbru@redhat.com>]

Its value is unreliable: a block device used as floppy has type
"floppy" if created with if=floppy, but type "hd" if created with
if=none.

That's because with if=none, the type is at best a declaration of
intent: the drive can be connected to any guest device.  Its type is
really the guest device's business.  Reporting it here is wrong.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 block.c         |   20 +++-----------------
 qmp-commands.hx |    6 ------
 2 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/block.c b/block.c
index f731c7a..c6dc42a 100644
--- a/block.c
+++ b/block.c
@@ -1704,9 +1704,8 @@ static void bdrv_print_dict(QObject *obj, void *opaque)
 
     bs_dict = qobject_to_qdict(obj);
 
-    monitor_printf(mon, "%s: type=%s removable=%d",
+    monitor_printf(mon, "%s: removable=%d",
                         qdict_get_str(bs_dict, "device"),
-                        qdict_get_str(bs_dict, "type"),
                         qdict_get_bool(bs_dict, "removable"));
 
     if (qdict_get_bool(bs_dict, "removable")) {
@@ -1747,23 +1746,10 @@ void bdrv_info(Monitor *mon, QObject **ret_data)
 
     QTAILQ_FOREACH(bs, &bdrv_states, list) {
         QObject *bs_obj;
-        const char *type = "unknown";
-
-        switch(bs->type) {
-        case BDRV_TYPE_HD:
-            type = "hd";
-            break;
-        case BDRV_TYPE_CDROM:
-            type = "cdrom";
-            break;
-        case BDRV_TYPE_FLOPPY:
-            type = "floppy";
-            break;
-        }
 
-        bs_obj = qobject_from_jsonf("{ 'device': %s, 'type': %s, "
+        bs_obj = qobject_from_jsonf("{ 'device': %s, "
                                     "'removable': %i, 'locked': %i }",
-                                    bs->device_name, type, bs->removable,
+                                    bs->device_name, bs->removable,
                                     bs->locked);
 
         if (bs->drv) {
diff --git a/qmp-commands.hx b/qmp-commands.hx
index fbd98ee..b1c8206 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1038,8 +1038,6 @@ is a json-array of all devices.
 Each json-object contain the following:
 
 - "device": device name (json-string)
-- "type": device type (json-string)
-         - Possible values: "hd", "cdrom", "floppy", "unknown"
 - "removable": true if the device is removable, false otherwise (json-bool)
 - "locked": true if the device is locked, false otherwise (json-bool)
 - "inserted": only present if the device is inserted, it is a json-object
@@ -1070,25 +1068,21 @@ Example:
                "encrypted":false,
                "file":"disks/test.img"
             },
-            "type":"hd"
          },
          {
             "device":"ide1-cd0",
             "locked":false,
             "removable":true,
-            "type":"cdrom"
          },
          {
             "device":"floppy0",
             "locked":false,
             "removable":true,
-            "type": "floppy"
          },
          {
             "device":"sd0",
             "locked":false,
             "removable":true,
-            "type":"floppy"
          }
       ]
    }
-- 
1.7.2.3