qdict: remove useless cast

Re-run Coccinelle script scripts/coccinelle/qobject.cocci
Signed-off-by: NLaurent Vivier <lvivier@redhat.com>
Message-Id: <20180323143202.28879-5-lvivier@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Acked-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: NFam Zheng <famz@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

block/nvme.c

@@ -695,12 +695,11 @@ static void nvme_parse_filename(const char *filename, QDict *options,
         unsigned long ns;
         const char *slash = strchr(tmp, '/');
         if (!slash) {
-            qdict_put(options, NVME_BLOCK_OPT_DEVICE,
-                      qstring_from_str(tmp));
+            qdict_put_str(options, NVME_BLOCK_OPT_DEVICE, tmp);
             return;
         }
         device = g_strndup(tmp, slash - tmp);
-        qdict_put(options, NVME_BLOCK_OPT_DEVICE, qstring_from_str(device));
+        qdict_put_str(options, NVME_BLOCK_OPT_DEVICE, device);
         g_free(device);
         namespace = slash + 1;
         if (*namespace && qemu_strtoul(namespace, NULL, 10, &ns)) {
@@ -708,8 +707,8 @@ static void nvme_parse_filename(const char *filename, QDict *options,
                        namespace);
             return;
         }
-        qdict_put(options, NVME_BLOCK_OPT_NAMESPACE,
-                  qstring_from_str(*namespace ? namespace : "1"));
+        qdict_put_str(options, NVME_BLOCK_OPT_NAMESPACE,
+                      *namespace ? namespace : "1");
     }
 }
 
@@ -1082,7 +1081,7 @@ static void nvme_refresh_filename(BlockDriverState *bs, QDict *opts)
                  bs->drv->format_name);
     }
 
-    qdict_put(opts, "driver", qstring_from_str(bs->drv->format_name));
+    qdict_put_str(opts, "driver", bs->drv->format_name);
     bs->full_open_options = opts;
 }
 

monitor.c

@@ -4315,7 +4315,7 @@ static QObject *get_qmp_greeting(Monitor *mon)
             /* Monitors that are not using IOThread won't support OOB */
             continue;
         }
-        qlist_append(cap_list, qstring_from_str(QMPCapability_str(cap)));
+        qlist_append_str(cap_list, QMPCapability_str(cap));
     }
 
     return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': %p}}",