diff --git a/include/qapi/qmp/qdict.h b/include/qapi/qmp/qdict.h
index fe9a4c5..9d9f9a3 100644
--- a/include/qapi/qmp/qdict.h
+++ b/include/qapi/qmp/qdict.h
@@ -52,6 +52,14 @@ void qdict_destroy_obj(QObject *obj);
 #define qdict_put(qdict, key, obj) \
         qdict_put_obj(qdict, key, QOBJECT(obj))

+/* Helpers for int, bool, and const char*. */
+#define qdict_put_int(qdict, key, value) \
+        qdict_put(qdict, key, qint_from_int(value))
+#define qdict_put_bool(qdict, key, value) \
+        qdict_put(qdict, key, qbool_from_bool(value))
+#define qdict_put_str(qdict, key, value) \
+        qdict_put(qdict, key, qstring_from_str(value))
+
 /* High level helpers */
 double qdict_get_double(const QDict *qdict, const char *key);
 int64_t qdict_get_int(const QDict *qdict, const char *key);
diff --git a/block.c b/block.c
index 39ddea3..e816657 100644
--- a/block.c
+++ b/block.c
@@ -876,16 +876,16 @@ static void update_flags_from_options(int *flags, QemuOpts *opts)
 static void update_options_from_flags(QDict *options, int flags)
 {
     if (!qdict_haskey(options, BDRV_OPT_CACHE_DIRECT)) {
-        qdict_put(options, BDRV_OPT_CACHE_DIRECT,
-                  qbool_from_bool(flags & BDRV_O_NOCACHE));
+        qdict_put_bool(options, BDRV_OPT_CACHE_DIRECT,
+                       flags & BDRV_O_NOCACHE);
     }
     if (!qdict_haskey(options, BDRV_OPT_CACHE_NO_FLUSH)) {
-        qdict_put(options, BDRV_OPT_CACHE_NO_FLUSH,
-                  qbool_from_bool(flags & BDRV_O_NO_FLUSH));
+        qdict_put_bool(options, BDRV_OPT_CACHE_NO_FLUSH,
+                       flags & BDRV_O_NO_FLUSH);
     }
     if (!qdict_haskey(options, BDRV_OPT_READ_ONLY)) {
-        qdict_put(options, BDRV_OPT_READ_ONLY,
-                  qbool_from_bool(!(flags & BDRV_O_RDWR)));
+        qdict_put_bool(options, BDRV_OPT_READ_ONLY,
+                       !(flags & BDRV_O_RDWR));
     }
 }

@@ -1244,7 +1244,7 @@ static int bdrv_fill_options(QDict **options, const char *filename,
     /* Fetch the file name from the options QDict if necessary */
     if (protocol && filename) {
         if (!qdict_haskey(*options, "filename")) {
-            qdict_put(*options, "filename", qstring_from_str(filename));
+            qdict_put_str(*options, "filename", filename);
             parse_filename = true;
         } else {
             error_setg(errp, "Can't specify 'file' and 'filename' options at "
@@ -1264,7 +1264,7 @@ static int bdrv_fill_options(QDict **options, const char *filename,
             }

             drvname = drv->format_name;
-            qdict_put(*options, "driver", qstring_from_str(drvname));
+            qdict_put_str(*options, "driver", drvname);
         } else {
             error_setg(errp, "Must specify either driver or file");
             return -EINVAL;
@@ -1517,7 +1517,7 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options,
     }

     if (bs->backing_format[0] != '\0' && !qdict_haskey(options, "driver")) {
-        qdict_put(options, "driver", qstring_from_str(bs->backing_format));
+        qdict_put_str(options, "driver", bs->backing_format);
     }

     backing_hd = bdrv_open_inherit(*backing_filename ? backing_filename : NULL,
@@ -1607,7 +1607,7 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
     char *tmp_filename = g_malloc0(PATH_MAX + 1);
     int64_t total_size;
     QemuOpts *opts = NULL;
-    BlockDriverState *bs_snapshot;
+    BlockDriverState *bs_snapshot = NULL;
     int ret;

     /* if snapshot, we create a temporary backing file and open it
@@ -1639,12 +1639,9 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
     }

     /* Prepare options QDict for the temporary file */
-    qdict_put(snapshot_options, "file.driver",
-              qstring_from_str("file"));
-    qdict_put(snapshot_options, "file.filename",
-              qstring_from_str(tmp_filename));
-    qdict_put(snapshot_options, "driver",
-              qstring_from_str("qcow2"));
+    qdict_put_str(snapshot_options, "file.driver", "file");
+    qdict_put_str(snapshot_options, "file.filename", tmp_filename);
+    qdict_put_str(snapshot_options, "driver", "qcow2");

     bs_snapshot = bdrv_open(NULL, NULL, snapshot_options, flags, errp);
     snapshot_options = NULL;
@@ -1659,13 +1656,10 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
     bdrv_ref(bs_snapshot);
     bdrv_append(bs_snapshot, bs);

+out:
+    QDECREF(snapshot_options);
     g_free(tmp_filename);
     return bs_snapshot;
-
-out:
-    QDECREF(snapshot_options);
-    g_free(tmp_filename);
-    return NULL;
 }

 /*
@@ -1816,8 +1810,8 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
          * sure to update both bs->options (which has the full effective
          * options for bs) and options (which has file.* already removed).
          */
-        qdict_put(bs->options, "driver", qstring_from_str(drv->format_name));
-        qdict_put(options, "driver", qstring_from_str(drv->format_name));
+        qdict_put_str(bs->options, "driver", drv->format_name);
+        qdict_put_str(options, "driver", drv->format_name);
     } else if (!drv) {
         error_setg(errp, "Must specify either driver or file");
         goto fail;
@@ -2191,12 +2185,12 @@ int bdrv_reopen_prepare(BDRVReopenState *reopen_state, BlockReopenQueue *queue,
      * that they are checked at the end of this function. */
     value = qemu_opt_get(opts, "node-name");
     if (value) {
-        qdict_put(reopen_state->options, "node-name", qstring_from_str(value));
+        qdict_put_str(reopen_state->options, "node-name", value);
     }

     value = qemu_opt_get(opts, "driver");
     if (value) {
-        qdict_put(reopen_state->options, "driver", qstring_from_str(value));
+        qdict_put_str(reopen_state->options, "driver", value);
     }

     /* if we are to stay read-only, do not allow permission change
@@ -3606,8 +3600,7 @@ void bdrv_img_create(const char *filename, const char *fmt,

             if (backing_fmt) {
                 backing_options = qdict_new();
-                qdict_put(backing_options, "driver",
-                          qstring_from_str(backing_fmt));
+                qdict_put_str(backing_options, "driver", backing_fmt);
             }

             bs = bdrv_open(full_backing, NULL, backing_options, back_flags,
@@ -3997,11 +3990,9 @@ void bdrv_refresh_filename(BlockDriverState *bs)
          * contain a representation of the filename, therefore the following
          * suffices without querying the (exact_)filename of this BDS. */
         if (bs->file->bs->full_open_options) {
-            qdict_put_obj(opts, "driver",
-                          QOBJECT(qstring_from_str(drv->format_name)));
+            qdict_put_str(opts, "driver", drv->format_name);
             QINCREF(bs->file->bs->full_open_options);
-            qdict_put_obj(opts, "file",
-                          QOBJECT(bs->file->bs->full_open_options));
+            qdict_put(opts, "file", bs->file->bs->full_open_options);

             bs->full_open_options = opts;
         } else {
@@ -4017,8 +4008,7 @@ void bdrv_refresh_filename(BlockDriverState *bs)

         opts = qdict_new();
         append_open_options(opts, bs);
-        qdict_put_obj(opts, "driver",
-                      QOBJECT(qstring_from_str(drv->format_name)));
+        qdict_put_str(opts, "driver", drv->format_name);

         if (bs->exact_filename[0]) {
             /* This may not work for all block protocol drivers (some may
@@ -4028,8 +4018,7 @@ void bdrv_refresh_filename(BlockDriverState *bs)
              * needs some special format of the options QDict, it needs to
              * implement the driver-specific bdrv_refresh_filename() function.
              */
-            qdict_put_obj(opts, "filename",
-                          QOBJECT(qstring_from_str(bs->exact_filename)));
+            qdict_put_str(opts, "filename", bs->exact_filename);
         }

         bs->full_open_options = opts;
diff --git a/block/archipelago.c b/block/archipelago.c
index 2449cfc..bf20c61 100644
--- a/block/archipelago.c
+++ b/block/archipelago.c
@@ -432,10 +432,10 @@ static void archipelago_parse_filename(const char *filename, QDict *options,
         g_free(segment_name);
     }
     if (mport != NoPort) {
-        qdict_put(options, ARCHIPELAGO_OPT_MPORT, qint_from_int(mport));
+        qdict_put_int(options, ARCHIPELAGO_OPT_MPORT, mport);
     }
     if (vport != NoPort) {
-        qdict_put(options, ARCHIPELAGO_OPT_VPORT, qint_from_int(vport));
+        qdict_put_int(options, ARCHIPELAGO_OPT_VPORT, vport);
     }
 }

diff --git a/block/blkdebug.c b/block/blkdebug.c
index 4127571..f1fe03c 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -302,7 +302,7 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,
     if (!strstart(filename, "blkdebug:", &filename)) {
         /* There was no prefix; therefore, all options have to be already
            present in the QDict (except for the filename) */
-        qdict_put(options, "x-image", qstring_from_str(filename));
+        qdict_put_str(options, "x-image", filename);
         return;
     }

@@ -321,7 +321,7 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,

     /* TODO Allow multi-level nesting and set file.filename here */
     filename = c + 1;
-    qdict_put(options, "x-image", qstring_from_str(filename));
+    qdict_put_str(options, "x-image", filename);
 }

 static QemuOptsList runtime_opts = {
@@ -708,7 +708,7 @@ static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
     }

     opts = qdict_new();
-    qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkdebug")));
+    qdict_put_str(opts, "driver", "blkdebug");

     QINCREF(bs->file->bs->full_open_options);
     qdict_put_obj(opts, "image", QOBJECT(bs->file->bs->full_open_options));
diff --git a/block/blkverify.c b/block/blkverify.c
index 28f9af6..e87d5ea 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -69,7 +69,7 @@ static void blkverify_parse_filename(const char *filename, QDict *options,
     if (!strstart(filename, "blkverify:", &filename)) {
         /* There was no prefix; therefore, all options have to be already
            present in the QDict (except for the filename) */
-        qdict_put(options, "x-image", qstring_from_str(filename));
+        qdict_put_str(options, "x-image", filename);
         return;
     }

@@ -86,7 +86,7 @@ static void blkverify_parse_filename(const char *filename, QDict *options,

     /* TODO Allow multi-level nesting and set file.filename here */
     filename = c + 1;
-    qdict_put(options, "x-image", qstring_from_str(filename));
+    qdict_put_str(options, "x-image", filename);
 }

 static QemuOptsList runtime_opts = {
@@ -300,13 +300,12 @@ static void blkverify_refresh_filename(BlockDriverState *bs, QDict *options)
         && s->test_file->bs->full_open_options)
     {
         QDict *opts = qdict_new();
-        qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkverify")));
+        qdict_put_str(opts, "driver", "blkverify");

         QINCREF(bs->file->bs->full_open_options);
-        qdict_put_obj(opts, "raw", QOBJECT(bs->file->bs->full_open_options));
+        qdict_put(opts, "raw", bs->file->bs->full_open_options);
         QINCREF(s->test_file->bs->full_open_options);
-        qdict_put_obj(opts, "test",
-                      QOBJECT(s->test_file->bs->full_open_options));
+        qdict_put(opts, "test", s->test_file->bs->full_open_options);

         bs->full_open_options = opts;
     }
diff --git a/block/curl.c b/block/curl.c
index 0404c1b..6959d3c 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -531,7 +531,7 @@ static void curl_clean_state(CURLState *s)
 static void curl_parse_filename(const char *filename, QDict *options,
                                 Error **errp)
 {
-    qdict_put(options, CURL_BLOCK_OPT_URL, qstring_from_str(filename));
+    qdict_put_str(options, CURL_BLOCK_OPT_URL, filename);
 }

 static void curl_detach_aio_context(BlockDriverState *bs)
diff --git a/block/iscsi.c b/block/iscsi.c
index 0960929..1269188 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1965,7 +1965,7 @@ static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
     iscsilun = bs->opaque;

     bs_options = qdict_new();
-    qdict_put(bs_options, "filename", qstring_from_str(filename));
+    qdict_put_str(bs_options, "filename", filename);
     ret = iscsi_open(bs, bs_options, 0, NULL);
     QDECREF(bs_options);

diff --git a/block/nbd.c b/block/nbd.c
index 35f24be..334748d 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -79,7 +79,7 @@ static int nbd_parse_uri(const char *filename, QDict *options)
     p = uri->path ? uri->path : "/";
     p += strspn(p, "/");
     if (p[0]) {
-        qdict_put(options, "export", qstring_from_str(p));
+        qdict_put_str(options, "export", p);
     }

     qp = query_params_parse(uri->query);
@@ -94,9 +94,8 @@ static int nbd_parse_uri(const char *filename, QDict *options)
             ret = -EINVAL;
             goto out;
         }
-        qdict_put(options, "server.type", qstring_from_str("unix"));
-        qdict_put(options, "server.data.path",
-                  qstring_from_str(qp->p[0].value));
+        qdict_put_str(options, "server.type", "unix");
+        qdict_put_str(options, "server.data.path", qp->p[0].value);
     } else {
         QString *host;
         char *port_str;
@@ -115,11 +114,11 @@ static int nbd_parse_uri(const char *filename, QDict *options)
             host = qstring_from_str(uri->server);
         }

-        qdict_put(options, "server.type", qstring_from_str("inet"));
+        qdict_put_str(options, "server.type", "inet");
         qdict_put(options, "server.data.host", host);

         port_str = g_strdup_printf("%d", uri->port ?: NBD_DEFAULT_PORT);
-        qdict_put(options, "server.data.port", qstring_from_str(port_str));
+        qdict_put_str(options, "server.data.port", port_str);
         g_free(port_str);
     }

@@ -181,7 +180,7 @@ static void nbd_parse_filename(const char *filename, QDict *options,
         export_name[0] = 0; /* truncate 'file' */
         export_name += strlen(EN_OPTSTR);

-        qdict_put(options, "export", qstring_from_str(export_name));
+        qdict_put_str(options, "export", export_name);
     }

     /* extract the host_spec - fail if it's not nbd:... */
@@ -196,8 +195,8 @@ static void nbd_parse_filename(const char *filename, QDict *options,

     /* are we a UNIX or TCP socket? */
     if (strstart(host_spec, "unix:", &unixpath)) {
-        qdict_put(options, "server.type", qstring_from_str("unix"));
-        qdict_put(options, "server.data.path", qstring_from_str(unixpath));
+        qdict_put_str(options, "server.type", "unix");
+        qdict_put_str(options, "server.data.path", unixpath);
     } else {
         InetSocketAddress *addr = NULL;

@@ -206,9 +205,9 @@ static void nbd_parse_filename(const char *filename, QDict *options,
             goto out;
         }

-        qdict_put(options, "server.type", qstring_from_str("inet"));
-        qdict_put(options, "server.data.host", qstring_from_str(addr->host));
-        qdict_put(options, "server.data.port", qstring_from_str(addr->port));
+        qdict_put_str(options, "server.type", "inet");
+        qdict_put_str(options, "server.data.host", addr->host);
+        qdict_put_str(options, "server.data.port", addr->port);
         qapi_free_InetSocketAddress(addr);
     }

@@ -247,13 +246,13 @@ static bool nbd_process_legacy_socket_options(QDict *output_options,
             return false;
         }

-        qdict_put(output_options, "server.type", qstring_from_str("unix"));
-        qdict_put(output_options, "server.data.path", qstring_from_str(path));
+        qdict_put_str(output_options, "server.type", "unix");
+        qdict_put_str(output_options, "server.data.path", path);
     } else if (host) {
-        qdict_put(output_options, "server.type", qstring_from_str("inet"));
-        qdict_put(output_options, "server.data.host", qstring_from_str(host));
-        qdict_put(output_options, "server.data.port",
-                  qstring_from_str(port ?: stringify(NBD_DEFAULT_PORT)));
+        qdict_put_str(output_options, "server.type", "inet");
+        qdict_put_str(output_options, "server.data.host", host);
+        qdict_put_str(output_options, "server.data.port",
+                      port ?: stringify(NBD_DEFAULT_PORT));
     }

     return true;
@@ -517,7 +516,7 @@ static void nbd_refresh_filename(BlockDriverState *bs, QDict *options)
         path = s->saddr->u.q_unix.data->path;
     }

-    qdict_put(opts, "driver", qstring_from_str("nbd"));
+    qdict_put_str(opts, "driver", "nbd");

     if (path && s->export) {
         snprintf(bs->exact_filename, sizeof(bs->exact_filename),
@@ -542,10 +541,10 @@ static void nbd_refresh_filename(BlockDriverState *bs, QDict *options)
     qdict_put_obj(opts, "server", saddr_qdict);

     if (s->export) {
-        qdict_put(opts, "export", qstring_from_str(s->export));
+        qdict_put_str(opts, "export", s->export);
     }
     if (s->tlscredsid) {
-        qdict_put(opts, "tls-creds", qstring_from_str(s->tlscredsid));
+        qdict_put_str(opts, "tls-creds", s->tlscredsid);
     }

     qdict_flatten(opts);
diff --git a/block/nfs.c b/block/nfs.c
index d082783..f8ba5cc 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -103,9 +103,9 @@ static int nfs_parse_uri(const char *filename, QDict *options, Error **errp)
         goto out;
     }

-    qdict_put(options, "server.host", qstring_from_str(uri->server));
-    qdict_put(options, "server.type", qstring_from_str("inet"));
-    qdict_put(options, "path", qstring_from_str(uri->path));
+    qdict_put_str(options, "server.host", uri->server);
+    qdict_put_str(options, "server.type", "inet");
+    qdict_put_str(options, "path", uri->path);

     for (i = 0; i < qp->n; i++) {
         if (!qp->p[i].value) {
@@ -119,23 +119,17 @@ static int nfs_parse_uri(const char *filename, QDict *options, Error **errp)
             goto out;
         }
         if (!strcmp(qp->p[i].name, "uid")) {
-            qdict_put(options, "user",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "user", qp->p[i].value);
         } else if (!strcmp(qp->p[i].name, "gid")) {
-            qdict_put(options, "group",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "group", qp->p[i].value);
         } else if (!strcmp(qp->p[i].name, "tcp-syncnt")) {
-            qdict_put(options, "tcp-syn-count",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "tcp-syn-count", qp->p[i].value);
         } else if (!strcmp(qp->p[i].name, "readahead")) {
-            qdict_put(options, "readahead-size",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "readahead-size", qp->p[i].value);
         } else if (!strcmp(qp->p[i].name, "pagecache")) {
-            qdict_put(options, "page-cache-size",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "page-cache-size", qp->p[i].value);
         } else if (!strcmp(qp->p[i].name, "debug")) {
-            qdict_put(options, "debug-level",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "debug-level", qp->p[i].value);
         } else {
             error_setg(errp, "Unknown NFS parameter name: %s",
                        qp->p[i].name);
@@ -774,7 +768,7 @@ static void nfs_refresh_filename(BlockDriverState *bs, QDict *options)
     QObject *server_qdict;
     Visitor *ov;

-    qdict_put(opts, "driver", qstring_from_str("nfs"));
+    qdict_put_str(opts, "driver", "nfs");

     if (client->uid && !client->gid) {
         snprintf(bs->exact_filename, sizeof(bs->exact_filename),
@@ -799,28 +793,25 @@ static void nfs_refresh_filename(BlockDriverState *bs, QDict *options)
     assert(qobject_type(server_qdict) == QTYPE_QDICT);

     qdict_put_obj(opts, "server", server_qdict);
-    qdict_put(opts, "path", qstring_from_str(client->path));
+    qdict_put_str(opts, "path", client->path);

     if (client->uid) {
-        qdict_put(opts, "uid", qint_from_int(client->uid));
+        qdict_put_int(opts, "uid", client->uid);
     }
     if (client->gid) {
-        qdict_put(opts, "gid", qint_from_int(client->gid));
+        qdict_put_int(opts, "gid", client->gid);
     }
     if (client->tcp_syncnt) {
-        qdict_put(opts, "tcp-syncnt",
-                      qint_from_int(client->tcp_syncnt));
+        qdict_put_int(opts, "tcp-syncnt", client->tcp_syncnt);
     }
     if (client->readahead) {
-        qdict_put(opts, "readahead",
-                      qint_from_int(client->readahead));
+        qdict_put_int(opts, "readahead", client->readahead);
     }
     if (client->pagecache) {
-        qdict_put(opts, "pagecache",
-                      qint_from_int(client->pagecache));
+        qdict_put_int(opts, "pagecache", client->pagecache);
     }
     if (client->debug) {
-        qdict_put(opts, "debug", qint_from_int(client->debug));
+        qdict_put_int(opts, "debug", client->debug);
     }

     visit_free(ov);
diff --git a/block/null.c b/block/null.c
index b300390..876f909 100644
--- a/block/null.c
+++ b/block/null.c
@@ -232,7 +232,7 @@ static void null_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;
 }

diff --git a/block/qcow2.c b/block/qcow2.c
index ed9e0f3..f908577 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2252,7 +2252,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
      * table)
      */
     options = qdict_new();
-    qdict_put(options, "driver", qstring_from_str("qcow2"));
+    qdict_put_str(options, "driver", "qcow2");
     blk = blk_new_open(filename, NULL, options,
                        BDRV_O_RDWR | BDRV_O_NO_FLUSH, &local_err);
     if (blk == NULL) {
@@ -2313,7 +2313,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,

     /* Reopen the image without BDRV_O_NO_FLUSH to flush it before returning */
     options = qdict_new();
-    qdict_put(options, "driver", qstring_from_str("qcow2"));
+    qdict_put_str(options, "driver", "qcow2");
     blk = blk_new_open(filename, NULL, options,
                        BDRV_O_RDWR | BDRV_O_NO_BACKING, &local_err);
     if (blk == NULL) {
diff --git a/block/quorum.c b/block/quorum.c
index d122299..0aa16dd 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -1072,14 +1072,11 @@ static void quorum_refresh_filename(BlockDriverState *bs, QDict *options)
     }

     opts = qdict_new();
-    qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("quorum")));
-    qdict_put_obj(opts, QUORUM_OPT_VOTE_THRESHOLD,
-                  QOBJECT(qint_from_int(s->threshold)));
-    qdict_put_obj(opts, QUORUM_OPT_BLKVERIFY,
-                  QOBJECT(qbool_from_bool(s->is_blkverify)));
-    qdict_put_obj(opts, QUORUM_OPT_REWRITE,
-                  QOBJECT(qbool_from_bool(s->rewrite_corrupted)));
-    qdict_put_obj(opts, "children", QOBJECT(children));
+    qdict_put_str(opts, "driver", "quorum");
+    qdict_put_int(opts, QUORUM_OPT_VOTE_THRESHOLD, s->threshold);
+    qdict_put_bool(opts, QUORUM_OPT_BLKVERIFY, s->is_blkverify);
+    qdict_put_bool(opts, QUORUM_OPT_REWRITE, s->rewrite_corrupted);
+    qdict_put(opts, "children", children);

     bs->full_open_options = opts;
 }
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 28b47d9..38a009b 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -376,7 +376,7 @@ static void raw_parse_filename(const char *filename, QDict *options,
      * function call can be ignored. */
     strstart(filename, "file:", &filename);

-    qdict_put_obj(options, "filename", QOBJECT(qstring_from_str(filename)));
+    qdict_put_str(options, "filename", filename);
 }

 static QemuOptsList raw_runtime_opts = {
@@ -2061,7 +2061,7 @@ static void hdev_parse_filename(const char *filename, QDict *options,
     /* The prefix is optional, just as for "file". */
     strstart(filename, "host_device:", &filename);

-    qdict_put_obj(options, "filename", QOBJECT(qstring_from_str(filename)));
+    qdict_put_str(options, "filename", filename);
 }

 static bool hdev_is_sg(BlockDriverState *bs)
@@ -2144,7 +2144,7 @@ static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
             goto hdev_open_Mac_error;
         }

-        qdict_put(options, "filename", qstring_from_str(bsd_path));
+        qdict_put_str(options, "filename", bsd_path);

 hdev_open_Mac_error:
         g_free(mediaType);
@@ -2354,7 +2354,7 @@ static void cdrom_parse_filename(const char *filename, QDict *options,
     /* The prefix is optional, just as for "file". */
     strstart(filename, "host_cdrom:", &filename);

-    qdict_put_obj(options, "filename", QOBJECT(qstring_from_str(filename)));
+    qdict_put_str(options, "filename", filename);
 }
 #endif

diff --git a/block/raw-win32.c b/block/raw-win32.c
index 800fabd..0d455d1 100644
--- a/block/raw-win32.c
+++ b/block/raw-win32.c
@@ -282,7 +282,7 @@ static void raw_parse_filename(const char *filename, QDict *options,
      * function call can be ignored. */
     strstart(filename, "file:", &filename);

-    qdict_put_obj(options, "filename", QOBJECT(qstring_from_str(filename)));
+    qdict_put_str(options, "filename", filename);
 }

 static QemuOptsList raw_runtime_opts = {
@@ -669,7 +669,7 @@ static void hdev_parse_filename(const char *filename, QDict *options,
     /* The prefix is optional, just as for "file". */
     strstart(filename, "host_device:", &filename);

-    qdict_put_obj(options, "filename", QOBJECT(qstring_from_str(filename)));
+    qdict_put_str(options, "filename", filename);
 }

 static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
diff --git a/block/ssh.c b/block/ssh.c
index 15ed281..656153e 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -227,24 +227,23 @@ static int parse_uri(const char *filename, QDict *options, Error **errp)
     }

     if(uri->user && strcmp(uri->user, "") != 0) {
-        qdict_put(options, "user", qstring_from_str(uri->user));
+        qdict_put_str(options, "user", uri->user);
     }

-    qdict_put(options, "server.host", qstring_from_str(uri->server));
+    qdict_put_str(options, "server.host", uri->server);

     port_str = g_strdup_printf("%d", uri->port ?: 22);
-    qdict_put(options, "server.port", qstring_from_str(port_str));
+    qdict_put_str(options, "server.port", port_str);
     g_free(port_str);

-    qdict_put(options, "path", qstring_from_str(uri->path));
+    qdict_put_str(options, "path", uri->path);

     /* Pick out any query parameters that we understand, and ignore
      * the rest.
      */
     for (i = 0; i < qp->n; ++i) {
         if (strcmp(qp->p[i].name, "host_key_check") == 0) {
-            qdict_put(options, "host_key_check",
-                      qstring_from_str(qp->p[i].value));
+            qdict_put_str(options, "host_key_check", qp->p[i].value);
         }
     }

@@ -574,9 +573,8 @@ static bool ssh_process_legacy_socket_options(QDict *output_opts,
     }

     if (host) {
-        qdict_put(output_opts, "server.host", qstring_from_str(host));
-        qdict_put(output_opts, "server.port",
-                  qstring_from_str(port ?: stringify(22)));
+        qdict_put_str(output_opts, "server.host", host);
+        qdict_put_str(output_opts, "server.port", port ?: stringify(22));
     }

     return true;
diff --git a/block/vvfat.c b/block/vvfat.c
index ded2109..cf2e109 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1057,10 +1057,10 @@ static void vvfat_parse_filename(const char *filename, QDict *options,
     }

     /* Fill in the options QDict */
-    qdict_put(options, "dir", qstring_from_str(filename));
-    qdict_put(options, "fat-type", qint_from_int(fat_type));
-    qdict_put(options, "floppy", qbool_from_bool(floppy));
-    qdict_put(options, "rw", qbool_from_bool(rw));
+    qdict_put_str(options, "dir", filename);
+    qdict_put_int(options, "fat-type", fat_type);
+    qdict_put_bool(options, "floppy", floppy);
+    qdict_put_bool(options, "rw", rw);
 }

 static int vvfat_open(BlockDriverState *bs, QDict *options, int flags,
@@ -3019,7 +3019,7 @@ static int enable_write_target(BlockDriverState *bs, Error **errp)
     }

     options = qdict_new();
-    qdict_put(options, "write-target.driver", qstring_from_str("qcow"));
+    qdict_put_str(options, "write-target.driver", "qcow");
     s->qcow = bdrv_open_child(s->qcow_filename, options, "write-target", bs,
                               &child_vvfat_qcow, false, errp);
     QDECREF(options);
diff --git a/blockdev.c b/blockdev.c
index 245e1e1..2802cea 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -523,7 +523,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
             error_setg(errp, "Cannot specify both 'driver' and 'format'");
             goto early_err;
         }
-        qdict_put(bs_opts, "driver", qstring_from_str(buf));
+        qdict_put_str(bs_opts, "driver", buf);
     }

     on_write_error = BLOCKDEV_ON_ERROR_ENOSPC;
@@ -899,10 +899,8 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
         copy_on_read = false;
     }

-    qdict_put(bs_opts, BDRV_OPT_READ_ONLY,
-              qstring_from_str(read_only ? "on" : "off"));
-    qdict_put(bs_opts, "copy-on-read",
-              qstring_from_str(copy_on_read ? "on" :"off"));
+    qdict_put_str(bs_opts, BDRV_OPT_READ_ONLY, read_only ? "on" : "off");
+    qdict_put_str(bs_opts, "copy-on-read", copy_on_read ? "on" : "off");

     /* Controller type */
     value = qemu_opt_get(legacy_opts, "if");
@@ -1063,7 +1061,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
             error_report("werror is not supported by this bus type");
             goto fail;
         }
-        qdict_put(bs_opts, "werror", qstring_from_str(werror));
+        qdict_put_str(bs_opts, "werror", werror);
     }

     rerror = qemu_opt_get(legacy_opts, "rerror");
@@ -1073,7 +1071,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
             error_report("rerror is not supported by this bus type");
             goto fail;
         }
-        qdict_put(bs_opts, "rerror", qstring_from_str(rerror));
+        qdict_put_str(bs_opts, "rerror", rerror);
     }

     /* Actual block device init: Functionality shared with blockdev-add */
@@ -1732,10 +1730,9 @@ static void external_snapshot_prepare(BlkActionState *common,

         options = qdict_new();
         if (s->has_snapshot_node_name) {
-            qdict_put(options, "node-name",
-                      qstring_from_str(snapshot_node_name));
+            qdict_put_str(options, "node-name", snapshot_node_name);
         }
-        qdict_put(options, "driver", qstring_from_str(format));
+        qdict_put_str(options, "driver", format);

         flags |= BDRV_O_NO_BACKING;
     }
@@ -2544,11 +2541,10 @@ void qmp_blockdev_change_medium(bool has_device, const char *device,

     options = qdict_new();
     detect_zeroes = blk_get_detect_zeroes_from_root_state(blk);
-    qdict_put(options, "detect-zeroes",
-              qstring_from_str(detect_zeroes ? "on" : "off"));
+    qdict_put_str(options, "detect-zeroes", detect_zeroes ? "on" : "off");

     if (has_format) {
-        qdict_put(options, "driver", qstring_from_str(format));
+        qdict_put_str(options, "driver", format);
     }

     medium_bs = bdrv_open(filename, NULL, options, bdrv_flags, errp);
@@ -3204,7 +3200,7 @@ static BlockJob *do_drive_backup(DriveBackup *backup, BlockJobTxn *txn,

     if (backup->format) {
         options = qdict_new();
-        qdict_put(options, "driver", qstring_from_str(backup->format));
+        qdict_put_str(options, "driver", backup->format);
     }

     target_bs = bdrv_open(backup->target, NULL, options, flags, errp);
@@ -3502,10 +3498,10 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)

     options = qdict_new();
     if (arg->has_node_name) {
-        qdict_put(options, "node-name", qstring_from_str(arg->node_name));
+        qdict_put_str(options, "node-name", arg->node_name);
     }
     if (format) {
-        qdict_put(options, "driver", qstring_from_str(format));
+        qdict_put_str(options, "driver", format);
     }

     /* Mirroring takes care of copy-on-write using the source's backing
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index 456a2d5..47b2ca1 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -1082,7 +1082,7 @@ static int blk_connect(struct XenDevice *xendev)

         if (strcmp(blkdev->fileproto, "<unset>")) {
             options = qdict_new();
-            qdict_put(options, "driver", qstring_from_str(blkdev->fileproto));
+            qdict_put_str(options, "driver", blkdev->fileproto);
         }

         /* setup via xenbus -> create new block driver instance */
diff --git a/hw/usb/xen-usb.c b/hw/usb/xen-usb.c
index 8e676e6..6659415 100644
--- a/hw/usb/xen-usb.c
+++ b/hw/usb/xen-usb.c
@@ -746,16 +746,16 @@ static void usbback_portid_add(struct usbback_info *usbif, unsigned port,
     portname++;

     qdict = qdict_new();
-    qdict_put(qdict, "driver", qstring_from_str("usb-host"));
+    qdict_put_str(qdict, "driver", "usb-host");
     tmp = g_strdup_printf("%s.0", usbif->xendev.qdev.id);
-    qdict_put(qdict, "bus", qstring_from_str(tmp));
+    qdict_put_str(qdict, "bus", tmp);
     g_free(tmp);
     tmp = g_strdup_printf("%s-%u", usbif->xendev.qdev.id, port);
-    qdict_put(qdict, "id", qstring_from_str(tmp));
+    qdict_put_str(qdict, "id", tmp);
     g_free(tmp);
-    qdict_put(qdict, "port", qint_from_int(port));
-    qdict_put(qdict, "hostbus", qint_from_int(atoi(busid)));
-    qdict_put(qdict, "hostport", qstring_from_str(portname));
+    qdict_put_int(qdict, "port", port);
+    qdict_put_int(qdict, "hostbus", atoi(busid));
+    qdict_put_str(qdict, "hostport", portname);
     opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
     if (local_err) {
         goto err;
diff --git a/monitor.c b/monitor.c
index 0841d43..2a877ef 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2618,7 +2618,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                     }
                     goto fail;
                 }
-                qdict_put(qdict, key, qstring_from_str(buf));
+                qdict_put_str(qdict, key, buf);
             }
             break;
         case 'O':
@@ -2720,9 +2720,9 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                         size = -1;
                     }
                 }
-                qdict_put(qdict, "count", qint_from_int(count));
-                qdict_put(qdict, "format", qint_from_int(format));
-                qdict_put(qdict, "size", qint_from_int(size));
+                qdict_put_int(qdict, "count", count);
+                qdict_put_int(qdict, "format", format);
+                qdict_put_int(qdict, "size", size);
             }
             break;
         case 'i':
@@ -2765,7 +2765,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                     }
                     val <<= 20;
                 }
-                qdict_put(qdict, key, qint_from_int(val));
+                qdict_put_int(qdict, key, val);
             }
             break;
         case 'o':
@@ -2787,7 +2787,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                     monitor_printf(mon, "invalid size\n");
                     goto fail;
                 }
-                qdict_put(qdict, key, qint_from_int(val));
+                qdict_put_int(qdict, key, val);
                 p = end;
             }
             break;
@@ -2843,7 +2843,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                     monitor_printf(mon, "Expected 'on' or 'off'\n");
                     goto fail;
                 }
-                qdict_put(qdict, key, qbool_from_bool(val));
+                qdict_put_bool(qdict, key, val);
             }
             break;
         case '-':
@@ -2874,7 +2874,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                     } else {
                         /* has option */
                         p++;
-                        qdict_put(qdict, key, qbool_from_bool(true));
+                        qdict_put_bool(qdict, key, true);
                     }
                 }
             }
@@ -2900,7 +2900,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                                    cmd->name);
                     goto fail;
                 }
-                qdict_put(qdict, key, qstring_from_str(p));
+                qdict_put_str(qdict, key, p);
                 p += len;
             }
             break;
diff --git a/qapi/qmp-event.c b/qapi/qmp-event.c
index 802ede4..ba3029c 100644
--- a/qapi/qmp-event.c
+++ b/qapi/qmp-event.c
@@ -51,7 +51,7 @@ static void timestamp_put(QDict *qdict)
 QDict *qmp_event_build_dict(const char *event_name)
 {
     QDict *dict = qdict_new();
-    qdict_put(dict, "event", qstring_from_str(event_name));
+    qdict_put_str(dict, "event", event_name);
     timestamp_put(dict);
     return dict;
 }
diff --git a/qemu-img.c b/qemu-img.c
index 6949b73..b58cdfa 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -298,7 +298,7 @@ static BlockBackend *img_open_file(const char *filename,

     if (fmt) {
         options = qdict_new();
-        qdict_put(options, "driver", qstring_from_str(fmt));
+        qdict_put_str(options, "driver", fmt);
     }

     blk = blk_new_open(filename, NULL, options, flags, &local_err);
@@ -2953,7 +2953,7 @@ static int img_rebase(int argc, char **argv)

         if (bs->backing_format[0] != '\0') {
             options = qdict_new();
-            qdict_put(options, "driver", qstring_from_str(bs->backing_format));
+            qdict_put_str(options, "driver", bs->backing_format);
         }

         bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
@@ -2970,7 +2970,7 @@ static int img_rebase(int argc, char **argv)
         if (out_baseimg[0]) {
             if (out_basefmt) {
                 options = qdict_new();
-                qdict_put(options, "driver", qstring_from_str(out_basefmt));
+                qdict_put_str(options, "driver", out_basefmt);
             } else {
                 options = NULL;
             }
diff --git a/qemu-io.c b/qemu-io.c
index 23a229f..97fe99d 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -599,7 +599,7 @@ int main(int argc, char **argv)
         } else {
             if (format) {
                 opts = qdict_new();
-                qdict_put(opts, "driver", qstring_from_str(format));
+                qdict_put_str(opts, "driver", format);
             }
             openfile(argv[optind], flags, writethrough, opts);
         }
diff --git a/qemu-nbd.c b/qemu-nbd.c
index c734f62..8f5ac8d 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -882,7 +882,7 @@ int main(int argc, char **argv)
     } else {
         if (fmt) {
             options = qdict_new();
-            qdict_put(options, "driver", qstring_from_str(fmt));
+            qdict_put_str(options, "driver", fmt);
         }
         blk = blk_new_open(srcpath, NULL, options, flags, &local_err);
     }
diff --git a/qobject/qdict.c b/qobject/qdict.c
index 197b0fb..51f0ef6 100644
--- a/qobject/qdict.c
+++ b/qobject/qdict.c
@@ -487,7 +487,7 @@ void qdict_set_default_str(QDict *dst, const char *key, const char *val)
         return;
     }

-    qdict_put(dst, key, qstring_from_str(val));
+    qdict_put_str(dst, key, val);
 }

 static void qdict_flatten_qdict(QDict *qdict, QDict *target,
diff --git a/target-s390x/cpu_models.c b/target-s390x/cpu_models.c
index c1e729d..cf631b2 100644
--- a/target-s390x/cpu_models.c
+++ b/target-s390x/cpu_models.c
@@ -375,12 +375,12 @@ static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info,

 static void qdict_add_disabled_feat(const char *name, void *opaque)
 {
-    qdict_put((QDict *) opaque, name, qbool_from_bool(false));
+    qdict_put_bool((QDict *) opaque, name, false);
 }

 static void qdict_add_enabled_feat(const char *name, void *opaque)
 {
-    qdict_put((QDict *) opaque, name, qbool_from_bool(true));
+    qdict_put_bool((QDict *) opaque, name, true);
 }

 /* convert S390CPUDef into a static CpuModelInfo */
diff --git a/tests/check-qdict.c b/tests/check-qdict.c
index 07b1c79..d00b411 100644
--- a/tests/check-qdict.c
+++ b/tests/check-qdict.c
@@ -47,7 +47,7 @@ static void qdict_put_obj_test(void)
     qdict = qdict_new();

     // key "" will have tdb hash 12345
-    qdict_put_obj(qdict, "", QOBJECT(qint_from_int(num)));
+    qdict_put_int(qdict, "", num);

     g_assert(qdict_size(qdict) == 1);
     ent = QLIST_FIRST(&qdict->table[12345 % QDICT_BUCKET_MAX]);
@@ -66,8 +66,8 @@ static void qdict_destroy_simple_test(void)
     QDict *qdict;

     qdict = qdict_new();
-    qdict_put_obj(qdict, "num", QOBJECT(qint_from_int(0)));
-    qdict_put_obj(qdict, "str", QOBJECT(qstring_from_str("foo")));
+    qdict_put_int(qdict, "num", 0);
+    qdict_put_str(qdict, "str", "foo");

     QDECREF(qdict);
 }
@@ -80,7 +80,7 @@ static void qdict_get_test(void)
     const char *key = "test";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qint_from_int(value));
+    qdict_put_int(tests_dict, key, value);

     obj = qdict_get(tests_dict, key);
     g_assert(obj != NULL);
@@ -98,7 +98,7 @@ static void qdict_get_int_test(void)
     const char *key = "int";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qint_from_int(value));
+    qdict_put_int(tests_dict, key, value);

     ret = qdict_get_int(tests_dict, key);
     g_assert(ret == value);
@@ -113,7 +113,7 @@ static void qdict_get_try_int_test(void)
     const char *key = "int";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qint_from_int(value));
+    qdict_put_int(tests_dict, key, value);

     ret = qdict_get_try_int(tests_dict, key, 0);
     g_assert(ret == value);
@@ -128,7 +128,7 @@ static void qdict_get_str_test(void)
     const char *str = "string";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qstring_from_str(str));
+    qdict_put_str(tests_dict, key, str);

     p = qdict_get_str(tests_dict, key);
     g_assert(p != NULL);
@@ -144,7 +144,7 @@ static void qdict_get_try_str_test(void)
     const char *str = "string";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qstring_from_str(str));
+    qdict_put_str(tests_dict, key, str);

     p = qdict_get_try_str(tests_dict, key);
     g_assert(p != NULL);
@@ -188,7 +188,7 @@ static void qdict_haskey_test(void)
     const char *key = "test";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qint_from_int(0));
+    qdict_put_int(tests_dict, key, 0);
     g_assert(qdict_haskey(tests_dict, key) == 1);

     QDECREF(tests_dict);
@@ -199,7 +199,7 @@ static void qdict_del_test(void)
     const char *key = "key test";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qstring_from_str("foo"));
+    qdict_put_str(tests_dict, key, "foo");
     g_assert(qdict_size(tests_dict) == 1);

     qdict_del(tests_dict, key);
@@ -226,9 +226,9 @@ static void qdict_iterapi_test(void)

     g_assert(qdict_first(tests_dict) == NULL);

-    qdict_put(tests_dict, "key1", qint_from_int(1));
-    qdict_put(tests_dict, "key2", qint_from_int(2));
-    qdict_put(tests_dict, "key3", qint_from_int(3));
+    qdict_put_int(tests_dict, "key1", 1);
+    qdict_put_int(tests_dict, "key2", 2);
+    qdict_put_int(tests_dict, "key3", 3);

     count = 0;
     for (ent = qdict_first(tests_dict); ent; ent = qdict_next(tests_dict, ent)){
@@ -294,8 +294,8 @@ static void qdict_flatten_test(void)
      * }
      */

-    qdict_put(dict1, "a", qint_from_int(0));
-    qdict_put(dict1, "b", qint_from_int(1));
+    qdict_put_int(dict1, "a", 0);
+    qdict_put_int(dict1, "b", 1);

     qlist_append_obj(list1, QOBJECT(qint_from_int(23)));
     qlist_append_obj(list1, QOBJECT(qint_from_int(66)));
@@ -303,11 +303,11 @@ static void qdict_flatten_test(void)
     qlist_append_obj(list2, QOBJECT(qint_from_int(42)));
     qlist_append_obj(list2, QOBJECT(list1));

-    qdict_put(dict2, "c", qint_from_int(2));
-    qdict_put(dict2, "d", qint_from_int(3));
-    qdict_put_obj(dict3, "e", QOBJECT(list2));
-    qdict_put_obj(dict3, "f", QOBJECT(dict2));
-    qdict_put(dict3, "g", qint_from_int(4));
+    qdict_put_int(dict2, "c", 2);
+    qdict_put_int(dict2, "d", 3);
+    qdict_put(dict3, "e", list2);
+    qdict_put(dict3, "f", dict2);
+    qdict_put_int(dict3, "g", 4);

     qdict_flatten(dict3);

@@ -369,12 +369,12 @@ static void qdict_array_split_test(void)
      * This example is given in the comment of qdict_array_split().
      */

-    qdict_put(test_dict, "1.x", qint_from_int(0));
-    qdict_put(test_dict, "4.y", qint_from_int(1));
-    qdict_put(test_dict, "0.a", qint_from_int(42));
-    qdict_put(test_dict, "o.o", qint_from_int(7));
-    qdict_put(test_dict, "0.b", qint_from_int(23));
-    qdict_put(test_dict, "2", qint_from_int(66));
+    qdict_put_int(test_dict, "1.x", 0);
+    qdict_put_int(test_dict, "4.y", 1);
+    qdict_put_int(test_dict, "0.a", 42);
+    qdict_put_int(test_dict, "o.o", 7);
+    qdict_put_int(test_dict, "0.b", 23);
+    qdict_put_int(test_dict, "2", 66);

     qdict_array_split(test_dict, &test_list);

@@ -441,9 +441,9 @@ static void qdict_array_split_test(void)

     test_dict = qdict_new();

-    qdict_put(test_dict, "0", qint_from_int(42));
-    qdict_put(test_dict, "1", qint_from_int(23));
-    qdict_put(test_dict, "1.x", qint_from_int(84));
+    qdict_put_int(test_dict, "0", 42);
+    qdict_put_int(test_dict, "1", 23);
+    qdict_put_int(test_dict, "1.x", 84);

     qdict_array_split(test_dict, &test_list);

@@ -472,38 +472,38 @@ static void qdict_array_entries_test(void)

     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);

-    qdict_put(dict, "bar", qint_from_int(0));
-    qdict_put(dict, "baz.0", qint_from_int(0));
+    qdict_put_int(dict, "bar", 0);
+    qdict_put_int(dict, "baz.0", 0);
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);

-    qdict_put(dict, "foo.1", qint_from_int(0));
+    qdict_put_int(dict, "foo.1", 0);
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
-    qdict_put(dict, "foo.0", qint_from_int(0));
+    qdict_put_int(dict, "foo.0", 0);
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 2);
-    qdict_put(dict, "foo.bar", qint_from_int(0));
+    qdict_put_int(dict, "foo.bar", 0);
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
     qdict_del(dict, "foo.bar");

-    qdict_put(dict, "foo.2.a", qint_from_int(0));
-    qdict_put(dict, "foo.2.b", qint_from_int(0));
-    qdict_put(dict, "foo.2.c", qint_from_int(0));
+    qdict_put_int(dict, "foo.2.a", 0);
+    qdict_put_int(dict, "foo.2.b", 0);
+    qdict_put_int(dict, "foo.2.c", 0);
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 3);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);

     QDECREF(dict);

     dict = qdict_new();
-    qdict_put(dict, "1", qint_from_int(0));
+    qdict_put_int(dict, "1", 0);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
-    qdict_put(dict, "0", qint_from_int(0));
+    qdict_put_int(dict, "0", 0);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, 2);
-    qdict_put(dict, "bar", qint_from_int(0));
+    qdict_put_int(dict, "bar", 0);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
     qdict_del(dict, "bar");

-    qdict_put(dict, "2.a", qint_from_int(0));
-    qdict_put(dict, "2.b", qint_from_int(0));
-    qdict_put(dict, "2.c", qint_from_int(0));
+    qdict_put_int(dict, "2.a", 0);
+    qdict_put_int(dict, "2.b", 0);
+    qdict_put_int(dict, "2.c", 0);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, 3);

     QDECREF(dict);
@@ -529,7 +529,7 @@ static void qdict_join_test(void)

         /* First iteration: Test movement */
         /* Second iteration: Test empty source and non-empty destination */
-        qdict_put(dict2, "foo", qint_from_int(42));
+        qdict_put_int(dict2, "foo", 42);

         for (i = 0; i < 2; i++) {
             qdict_join(dict1, dict2, overwrite);
@@ -541,7 +541,7 @@ static void qdict_join_test(void)
         }

         /* Test non-empty source and destination without conflict */
-        qdict_put(dict2, "bar", qint_from_int(23));
+        qdict_put_int(dict2, "bar", 23);

         qdict_join(dict1, dict2, overwrite);

@@ -552,7 +552,7 @@ static void qdict_join_test(void)
         g_assert(qdict_get_int(dict1, "bar") == 23);

         /* Test conflict */
-        qdict_put(dict2, "foo", qint_from_int(84));
+        qdict_put_int(dict2, "foo", 84);

         qdict_join(dict1, dict2, overwrite);

@@ -595,15 +595,15 @@ static void qdict_crumple_test_recursive(void)
     QList *rules;

     src = qdict_new();
-    qdict_put(src, "vnc.listen.addr", qstring_from_str("127.0.0.1"));
-    qdict_put(src, "vnc.listen.port", qstring_from_str("5901"));
-    qdict_put(src, "vnc.acl.rules.0.match", qstring_from_str("fred"));
-    qdict_put(src, "vnc.acl.rules.0.policy", qstring_from_str("allow"));
-    qdict_put(src, "vnc.acl.rules.1.match", qstring_from_str("bob"));
-    qdict_put(src, "vnc.acl.rules.1.policy", qstring_from_str("deny"));
-    qdict_put(src, "vnc.acl.default", qstring_from_str("deny"));
-    qdict_put(src, "vnc.acl..name", qstring_from_str("acl0"));
-    qdict_put(src, "vnc.acl.rule..name", qstring_from_str("acl0"));
+    qdict_put_str(src, "vnc.listen.addr", "127.0.0.1");
+    qdict_put_str(src, "vnc.listen.port", "5901");
+    qdict_put_str(src, "vnc.acl.rules.0.match", "fred");
+    qdict_put_str(src, "vnc.acl.rules.0.policy", "allow");
+    qdict_put_str(src, "vnc.acl.rules.1.match", "bob");
+    qdict_put_str(src, "vnc.acl.rules.1.policy", "deny");
+    qdict_put_str(src, "vnc.acl.default", "deny");
+    qdict_put_str(src, "vnc.acl..name", "acl0");
+    qdict_put_str(src, "vnc.acl.rule..name", "acl0");

     res = qdict_crumple(src, &error_abort);

@@ -676,8 +676,8 @@ static void qdict_crumple_test_bad_inputs(void)

     src = qdict_new();
     /* rule.0 can't be both a string and a dict */
-    qdict_put(src, "rule.0", qstring_from_str("fred"));
-    qdict_put(src, "rule.0.policy", qstring_from_str("allow"));
+    qdict_put_str(src, "rule.0", "fred");
+    qdict_put_str(src, "rule.0.policy", "allow");

     g_assert(qdict_crumple(src, &error) == NULL);
     g_assert(error != NULL);
@@ -687,8 +687,8 @@ static void qdict_crumple_test_bad_inputs(void)

     src = qdict_new();
     /* rule can't be both a list and a dict */
-    qdict_put(src, "rule.0", qstring_from_str("fred"));
-    qdict_put(src, "rule.a", qstring_from_str("allow"));
+    qdict_put_str(src, "rule.0", "fred");
+    qdict_put_str(src, "rule.a", "allow");

     g_assert(qdict_crumple(src, &error) == NULL);
     g_assert(error != NULL);
@@ -699,7 +699,7 @@ static void qdict_crumple_test_bad_inputs(void)
     src = qdict_new();
     /* The input should be flat, ie no dicts or lists */
     qdict_put(src, "rule.a", qdict_new());
-    qdict_put(src, "rule.b", qstring_from_str("allow"));
+    qdict_put_str(src, "rule.b", "allow");

     g_assert(qdict_crumple(src, &error) == NULL);
     g_assert(error != NULL);
@@ -709,8 +709,8 @@ static void qdict_crumple_test_bad_inputs(void)

     src = qdict_new();
     /* List indexes must not have gaps */
-    qdict_put(src, "rule.0", qstring_from_str("deny"));
-    qdict_put(src, "rule.3", qstring_from_str("allow"));
+    qdict_put_str(src, "rule.0", "deny");
+    qdict_put_str(src, "rule.3", "allow");

     g_assert(qdict_crumple(src, &error) == NULL);
     g_assert(error != NULL);
@@ -720,8 +720,8 @@ static void qdict_crumple_test_bad_inputs(void)

     src = qdict_new();
     /* List indexes must be in %zu format */
-    qdict_put(src, "rule.0", qstring_from_str("deny"));
-    qdict_put(src, "rule.+1", qstring_from_str("allow"));
+    qdict_put_str(src, "rule.0", "deny");
+    qdict_put_str(src, "rule.+1", "allow");

     g_assert(qdict_crumple(src, &error) == NULL);
     g_assert(error != NULL);
@@ -740,8 +740,8 @@ static void qdict_put_exists_test(void)
     const char *key = "exists";
     QDict *tests_dict = qdict_new();

-    qdict_put(tests_dict, key, qint_from_int(1));
-    qdict_put(tests_dict, key, qint_from_int(2));
+    qdict_put_int(tests_dict, key, 1);
+    qdict_put_int(tests_dict, key, 2);

     value = qdict_get_int(tests_dict, key);
     g_assert(value == 2);
diff --git a/tests/test-qmp-commands.c b/tests/test-qmp-commands.c
index ff94481..660a9e8 100644
--- a/tests/test-qmp-commands.c
+++ b/tests/test-qmp-commands.c
@@ -92,7 +92,7 @@ static void test_dispatch_cmd(void)
     QDict *req = qdict_new();
     QObject *resp;

-    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd")));
+    qdict_put_str(req, "execute", "user_def_cmd");

     resp = qmp_dispatch(QOBJECT(req));
     assert(resp != NULL);
@@ -109,7 +109,7 @@ static void test_dispatch_cmd_failure(void)
     QDict *args = qdict_new();
     QObject *resp;

-    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));
+    qdict_put_str(req, "execute", "user_def_cmd2");

     resp = qmp_dispatch(QOBJECT(req));
     assert(resp != NULL);
@@ -120,10 +120,10 @@ static void test_dispatch_cmd_failure(void)

     /* check that with extra arguments it throws an error */
     req = qdict_new();
-    qdict_put(args, "a", qint_from_int(66));
+    qdict_put_int(args, "a", 66);
     qdict_put(req, "arguments", args);

-    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd")));
+    qdict_put_str(req, "execute", "user_def_cmd");

     resp = qmp_dispatch(QOBJECT(req));
     assert(resp != NULL);
@@ -162,14 +162,14 @@ static void test_dispatch_cmd_io(void)
     QDict *ret_dict_dict2, *ret_dict_dict2_userdef;
     QInt *ret3;

-    qdict_put_obj(ud1a, "integer", QOBJECT(qint_from_int(42)));
-    qdict_put_obj(ud1a, "string", QOBJECT(qstring_from_str("hello")));
-    qdict_put_obj(ud1b, "integer", QOBJECT(qint_from_int(422)));
-    qdict_put_obj(ud1b, "string", QOBJECT(qstring_from_str("hello2")));
-    qdict_put_obj(args, "ud1a", QOBJECT(ud1a));
-    qdict_put_obj(args, "ud1b", QOBJECT(ud1b));
-    qdict_put_obj(req, "arguments", QOBJECT(args));
-    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));
+    qdict_put_int(ud1a, "integer", 42);
+    qdict_put_str(ud1a, "string", "hello");
+    qdict_put_int(ud1b, "integer", 422);
+    qdict_put_str(ud1b, "string", "hello2");
+    qdict_put(args, "ud1a", ud1a);
+    qdict_put(args, "ud1b", ud1b);
+    qdict_put(req, "arguments", args);
+    qdict_put_str(req, "execute", "user_def_cmd2");

     ret = qobject_to_qdict(test_qmp_dispatch(req));

@@ -188,9 +188,9 @@ static void test_dispatch_cmd_io(void)
     assert(!strcmp(qdict_get_str(ret_dict_dict2, "string"), "blah4"));
     QDECREF(ret);

-    qdict_put(args3, "a", qint_from_int(66));
+    qdict_put_int(args3, "a", 66);
     qdict_put(req, "arguments", args3);
-    qdict_put(req, "execute", qstring_from_str("guest-get-time"));
+    qdict_put_str(req, "execute", "guest-get-time");

     ret3 = qobject_to_qint(test_qmp_dispatch(req));
     assert(qint_get_int(ret3) == 66);
@@ -242,7 +242,7 @@ static void test_dealloc_partial(void)
         Visitor *v;

         ud2_dict = qdict_new();
-        qdict_put_obj(ud2_dict, "string0", QOBJECT(qstring_from_str(text)));
+        qdict_put_str(ud2_dict, "string0", text);

         v = qobject_input_visitor_new(QOBJECT(ud2_dict), true);
         visit_type_UserDefTwo(v, NULL, &ud2, &err);
diff --git a/tests/test-qmp-event.c b/tests/test-qmp-event.c
index 633dc87..cf58104 100644
--- a/tests/test-qmp-event.c
+++ b/tests/test-qmp-event.c
@@ -159,7 +159,7 @@ static void test_event_a(TestEventData *data,
 {
     QDict *d;
     d = data->expect;
-    qdict_put(d, "event", qstring_from_str("EVENT_A"));
+    qdict_put_str(d, "event", "EVENT_A");
     qapi_event_send_event_a(&error_abort);
 }

@@ -168,7 +168,7 @@ static void test_event_b(TestEventData *data,
 {
     QDict *d;
     d = data->expect;
-    qdict_put(d, "event", qstring_from_str("EVENT_B"));
+    qdict_put_str(d, "event", "EVENT_B");
     qapi_event_send_event_b(&error_abort);
 }

@@ -183,16 +183,16 @@ static void test_event_c(TestEventData *data,
     b.has_enum1 = false;

     d_b = qdict_new();
-    qdict_put(d_b, "integer", qint_from_int(2));
-    qdict_put(d_b, "string", qstring_from_str("test1"));
+    qdict_put_int(d_b, "integer", 2);
+    qdict_put_str(d_b, "string", "test1");

     d_data = qdict_new();
-    qdict_put(d_data, "a", qint_from_int(1));
+    qdict_put_int(d_data, "a", 1);
     qdict_put(d_data, "b", d_b);
-    qdict_put(d_data, "c", qstring_from_str("test2"));
+    qdict_put_str(d_data, "c", "test2");

     d = data->expect;
-    qdict_put(d, "event", qstring_from_str("EVENT_C"));
+    qdict_put_str(d, "event", "EVENT_C");
     qdict_put(d, "data", d_data);

     qapi_event_send_event_c(true, 1, true, &b, "test2", &error_abort);
@@ -219,22 +219,22 @@ static void test_event_d(TestEventData *data,
     a.enum2 = ENUM_ONE_VALUE2;

     d_struct1 = qdict_new();
-    qdict_put(d_struct1, "integer", qint_from_int(2));
-    qdict_put(d_struct1, "string", qstring_from_str("test1"));
-    qdict_put(d_struct1, "enum1", qstring_from_str("value1"));
+    qdict_put_int(d_struct1, "integer", 2);
+    qdict_put_str(d_struct1, "string", "test1");
+    qdict_put_str(d_struct1, "enum1", "value1");

     d_a = qdict_new();
     qdict_put(d_a, "struct1", d_struct1);
-    qdict_put(d_a, "string", qstring_from_str("test2"));
-    qdict_put(d_a, "enum2", qstring_from_str("value2"));
+    qdict_put_str(d_a, "string", "test2");
+    qdict_put_str(d_a, "enum2", "value2");

     d_data = qdict_new();
     qdict_put(d_data, "a", d_a);
-    qdict_put(d_data, "b", qstring_from_str("test3"));
-    qdict_put(d_data, "enum3", qstring_from_str("value3"));
+    qdict_put_str(d_data, "b", "test3");
+    qdict_put_str(d_data, "enum3", "value3");

     d = data->expect;
-    qdict_put(d, "event", qstring_from_str("EVENT_D"));
+    qdict_put_str(d, "event", "EVENT_D");
     qdict_put(d, "data", d_data);

     qapi_event_send_event_d(&a, "test3", false, NULL, true, ENUM_ONE_VALUE3,
diff --git a/tests/test-qobject-output-visitor.c b/tests/test-qobject-output-visitor.c
index 4e2d79c..22d148a 100644
--- a/tests/test-qobject-output-visitor.c
+++ b/tests/test-qobject-output-visitor.c
@@ -356,9 +356,9 @@ static void test_visitor_out_any(TestOutputVisitorData *data,

     visitor_reset(data);
     qdict = qdict_new();
-    qdict_put(qdict, "integer", qint_from_int(-42));
-    qdict_put(qdict, "boolean", qbool_from_bool(true));
-    qdict_put(qdict, "string", qstring_from_str("foo"));
+    qdict_put_int(qdict, "integer", -42);
+    qdict_put_bool(qdict, "boolean", true);
+    qdict_put_str(qdict, "string", "foo");
     qobj = QOBJECT(qdict);
     visit_type_any(data->ov, NULL, &qobj, &error_abort);
     qobject_decref(qobj);
diff --git a/util/qemu-option.c b/util/qemu-option.c
index 3467dc2..b061fb0 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -1056,17 +1056,15 @@ void qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp)
 QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict)
 {
     QemuOpt *opt;
-    QObject *val;

     if (!qdict) {
         qdict = qdict_new();
     }
     if (opts->id) {
-        qdict_put(qdict, "id", qstring_from_str(opts->id));
+        qdict_put_str(qdict, "id", opts->id);
     }
     QTAILQ_FOREACH(opt, &opts->head, next) {
-        val = QOBJECT(qstring_from_str(opt->str));
-        qdict_put_obj(qdict, opt->name, val);
+        qdict_put_str(qdict, opt->name, opt->str);
     }
     return qdict;
 }
