qdev: Make qdev_get_prop_ptr() get Object* arg

Make the code more generic and not specific to TYPE_DEVICE.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com> #s390 parts
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20201211220529.2290218-10-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

2 files changed, 56 insertions, 83 deletions

diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 77b31eb9dc..9ac9b95852 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -59,9 +59,8 @@ static bool check_prop_still_unset(DeviceState *dev, const char *name,
 static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
                       Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    void **ptr = qdev_get_prop_ptr(dev, prop);
+    void **ptr = qdev_get_prop_ptr(obj, prop);
     const char *value;
     char *p;
 
@@ -87,7 +86,7 @@ static void set_drive_helper(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    void **ptr = qdev_get_prop_ptr(dev, prop);
+    void **ptr = qdev_get_prop_ptr(obj, prop);
     char *str;
     BlockBackend *blk;
     bool blk_created = false;
@@ -185,7 +184,7 @@ static void release_drive(Object *obj, const char *name, void *opaque)
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    BlockBackend **ptr = qdev_get_prop_ptr(dev, prop);
+    BlockBackend **ptr = qdev_get_prop_ptr(obj, prop);
 
     if (*ptr) {
         AioContext *ctx = blk_get_aio_context(*ptr);
@@ -218,8 +217,7 @@ const PropertyInfo qdev_prop_drive_iothread = {
 static void get_chr(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
-    CharBackend *be = qdev_get_prop_ptr(dev, opaque);
+    CharBackend *be = qdev_get_prop_ptr(obj, opaque);
     char *p;
 
     p = g_strdup(be->chr && be->chr->label ? be->chr->label : "");
@@ -232,7 +230,7 @@ static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    CharBackend *be = qdev_get_prop_ptr(dev, prop);
+    CharBackend *be = qdev_get_prop_ptr(obj, prop);
     Chardev *s;
     char *str;
 
@@ -272,9 +270,8 @@ static void set_chr(Object *obj, Visitor *v, const char *name, void *opaque,
 
 static void release_chr(Object *obj, const char *name, void *opaque)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    CharBackend *be = qdev_get_prop_ptr(dev, prop);
+    CharBackend *be = qdev_get_prop_ptr(obj, prop);
 
     qemu_chr_fe_deinit(be, false);
 }
@@ -297,9 +294,8 @@ const PropertyInfo qdev_prop_chr = {
 static void get_mac(Object *obj, Visitor *v, const char *name, void *opaque,
                     Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    MACAddr *mac = qdev_get_prop_ptr(dev, prop);
+    MACAddr *mac = qdev_get_prop_ptr(obj, prop);
     char buffer[2 * 6 + 5 + 1];
     char *p = buffer;
 
@@ -315,7 +311,7 @@ static void set_mac(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    MACAddr *mac = qdev_get_prop_ptr(dev, prop);
+    MACAddr *mac = qdev_get_prop_ptr(obj, prop);
     int i, pos;
     char *str;
     const char *p;
@@ -381,9 +377,8 @@ void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
 static void get_netdev(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
+    NICPeers *peers_ptr = qdev_get_prop_ptr(obj, prop);
     char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : "");
 
     visit_type_str(v, name, &p, errp);
@@ -395,7 +390,7 @@ static void set_netdev(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    NICPeers *peers_ptr = qdev_get_prop_ptr(dev, prop);
+    NICPeers *peers_ptr = qdev_get_prop_ptr(obj, prop);
     NetClientState **ncs = peers_ptr->ncs;
     NetClientState *peers[MAX_QUEUE_NUM];
     int queues, err = 0, i = 0;
@@ -461,9 +456,8 @@ const PropertyInfo qdev_prop_netdev = {
 static void get_audiodev(Object *obj, Visitor *v, const char* name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    QEMUSoundCard *card = qdev_get_prop_ptr(dev, prop);
+    QEMUSoundCard *card = qdev_get_prop_ptr(obj, prop);
     char *p = g_strdup(audio_get_id(card));
 
     visit_type_str(v, name, &p, errp);
@@ -475,7 +469,7 @@ static void set_audiodev(Object *obj, Visitor *v, const char* name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    QEMUSoundCard *card = qdev_get_prop_ptr(dev, prop);
+    QEMUSoundCard *card = qdev_get_prop_ptr(obj, prop);
     AudioState *state;
     int err = 0;
     char *str;
@@ -582,7 +576,7 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value;
     Error *local_err = NULL;
 
@@ -674,9 +668,8 @@ const PropertyInfo qdev_prop_multifd_compression = {
 static void get_reserved_region(Object *obj, Visitor *v, const char *name,
                                 void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    ReservedRegion *rr = qdev_get_prop_ptr(dev, prop);
+    ReservedRegion *rr = qdev_get_prop_ptr(obj, prop);
     char buffer[64];
     char *p = buffer;
     int rc;
@@ -693,7 +686,7 @@ static void set_reserved_region(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    ReservedRegion *rr = qdev_get_prop_ptr(dev, prop);
+    ReservedRegion *rr = qdev_get_prop_ptr(obj, prop);
     Error *local_err = NULL;
     const char *endptr;
     char *str;
@@ -761,7 +754,7 @@ static void set_pci_devfn(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t value, *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t value, *ptr = qdev_get_prop_ptr(obj, prop);
     unsigned int slot, fn, n;
     char *str;
 
@@ -804,8 +797,7 @@ invalid:
 static int print_pci_devfn(Object *obj, Property *prop, char *dest,
                            size_t len)
 {
-    DeviceState *dev = DEVICE(obj);
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (*ptr == -1) {
         return snprintf(dest, len, "<unset>");
@@ -828,9 +820,8 @@ const PropertyInfo qdev_prop_pci_devfn = {
 static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
                                  void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop);
+    PCIHostDeviceAddress *addr = qdev_get_prop_ptr(obj, prop);
     char buffer[] = "ffff:ff:ff.f";
     char *p = buffer;
     int rc = 0;
@@ -857,7 +848,7 @@ static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop);
+    PCIHostDeviceAddress *addr = qdev_get_prop_ptr(obj, prop);
     char *str, *p;
     char *e;
     unsigned long val;
@@ -951,9 +942,8 @@ const PropertyInfo qdev_prop_off_auto_pcibar = {
 static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
                                    void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIExpLinkSpeed *p = qdev_get_prop_ptr(dev, prop);
+    PCIExpLinkSpeed *p = qdev_get_prop_ptr(obj, prop);
     int speed;
 
     switch (*p) {
@@ -982,7 +972,7 @@ static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIExpLinkSpeed *p = qdev_get_prop_ptr(dev, prop);
+    PCIExpLinkSpeed *p = qdev_get_prop_ptr(obj, prop);
     int speed;
 
     if (dev->realized) {
@@ -1028,9 +1018,8 @@ const PropertyInfo qdev_prop_pcie_link_speed = {
 static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
                                    void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIExpLinkWidth *p = qdev_get_prop_ptr(dev, prop);
+    PCIExpLinkWidth *p = qdev_get_prop_ptr(obj, prop);
     int width;
 
     switch (*p) {
@@ -1068,7 +1057,7 @@ static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    PCIExpLinkWidth *p = qdev_get_prop_ptr(dev, prop);
+    PCIExpLinkWidth *p = qdev_get_prop_ptr(obj, prop);
     int width;
 
     if (dev->realized) {
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 3a4638f4de..0a54a922c8 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -38,9 +38,9 @@ void qdev_prop_allow_set_link_before_realize(const Object *obj,
     }
 }
 
-void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
+void *qdev_get_prop_ptr(Object *obj, Property *prop)
 {
-    void *ptr = dev;
+    void *ptr = obj;
     ptr += prop->offset;
     return ptr;
 }
@@ -48,9 +48,8 @@ void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
 void qdev_propinfo_get_enum(Object *obj, Visitor *v, const char *name,
                             void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int *ptr = qdev_get_prop_ptr(dev, prop);
+    int *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_enum(v, prop->name, ptr, prop->info->enum_table, errp);
 }
@@ -60,7 +59,7 @@ void qdev_propinfo_set_enum(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int *ptr = qdev_get_prop_ptr(dev, prop);
+    int *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -94,8 +93,7 @@ static uint32_t qdev_get_prop_mask(Property *prop)
 
 static void bit_prop_set(Object *obj, Property *props, bool val)
 {
-    DeviceState *dev = DEVICE(obj);
-    uint32_t *p = qdev_get_prop_ptr(dev, props);
+    uint32_t *p = qdev_get_prop_ptr(obj, props);
     uint32_t mask = qdev_get_prop_mask(props);
     if (val) {
         *p |= mask;
@@ -107,9 +105,8 @@ static void bit_prop_set(Object *obj, Property *props, bool val)
 static void prop_get_bit(Object *obj, Visitor *v, const char *name,
                          void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *p = qdev_get_prop_ptr(dev, prop);
+    uint32_t *p = qdev_get_prop_ptr(obj, prop);
     bool value = (*p & qdev_get_prop_mask(prop)) != 0;
 
     visit_type_bool(v, name, &value, errp);
@@ -156,8 +153,7 @@ static uint64_t qdev_get_prop_mask64(Property *prop)
 
 static void bit64_prop_set(Object *obj, Property *props, bool val)
 {
-    DeviceState *dev = DEVICE(obj);
-    uint64_t *p = qdev_get_prop_ptr(dev, props);
+    uint64_t *p = qdev_get_prop_ptr(obj, props);
     uint64_t mask = qdev_get_prop_mask64(props);
     if (val) {
         *p |= mask;
@@ -169,9 +165,8 @@ static void bit64_prop_set(Object *obj, Property *props, bool val)
 static void prop_get_bit64(Object *obj, Visitor *v, const char *name,
                            void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *p = qdev_get_prop_ptr(dev, prop);
+    uint64_t *p = qdev_get_prop_ptr(obj, prop);
     bool value = (*p & qdev_get_prop_mask64(prop)) != 0;
 
     visit_type_bool(v, name, &value, errp);
@@ -208,9 +203,8 @@ const PropertyInfo qdev_prop_bit64 = {
 static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    bool *ptr = qdev_get_prop_ptr(dev, prop);
+    bool *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_bool(v, name, ptr, errp);
 }
@@ -220,7 +214,7 @@ static void set_bool(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    bool *ptr = qdev_get_prop_ptr(dev, prop);
+    bool *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -242,9 +236,8 @@ const PropertyInfo qdev_prop_bool = {
 static void get_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
                       Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint8_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint8(v, name, ptr, errp);
 }
@@ -254,7 +247,7 @@ static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint8_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -288,9 +281,8 @@ const PropertyInfo qdev_prop_uint8 = {
 void qdev_propinfo_get_uint16(Object *obj, Visitor *v, const char *name,
                               void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint16_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint16(v, name, ptr, errp);
 }
@@ -300,7 +292,7 @@ static void set_uint16(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint16_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -322,9 +314,8 @@ const PropertyInfo qdev_prop_uint16 = {
 static void get_uint32(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint32(v, name, ptr, errp);
 }
@@ -334,7 +325,7 @@ static void set_uint32(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -347,9 +338,8 @@ static void set_uint32(Object *obj, Visitor *v, const char *name,
 void qdev_propinfo_get_int32(Object *obj, Visitor *v, const char *name,
                              void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_int32(v, name, ptr, errp);
 }
@@ -359,7 +349,7 @@ static void set_int32(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int32_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -388,9 +378,8 @@ const PropertyInfo qdev_prop_int32 = {
 static void get_uint64(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_uint64(v, name, ptr, errp);
 }
@@ -400,7 +389,7 @@ static void set_uint64(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -413,9 +402,8 @@ static void set_uint64(Object *obj, Visitor *v, const char *name,
 static void get_int64(Object *obj, Visitor *v, const char *name,
                       void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_int64(v, name, ptr, errp);
 }
@@ -425,7 +413,7 @@ static void set_int64(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    int64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    int64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);
@@ -454,15 +442,14 @@ const PropertyInfo qdev_prop_int64 = {
 static void release_string(Object *obj, const char *name, void *opaque)
 {
     Property *prop = opaque;
-    g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop));
+    g_free(*(char **)qdev_get_prop_ptr(obj, prop));
 }
 
 static void get_string(Object *obj, Visitor *v, const char *name,
                        void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    char **ptr = qdev_get_prop_ptr(dev, prop);
+    char **ptr = qdev_get_prop_ptr(obj, prop);
 
     if (!*ptr) {
         char *str = (char *)"";
@@ -477,7 +464,7 @@ static void set_string(Object *obj, Visitor *v, const char *name,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    char **ptr = qdev_get_prop_ptr(dev, prop);
+    char **ptr = qdev_get_prop_ptr(obj, prop);
     char *str;
 
     if (dev->realized) {
@@ -515,9 +502,8 @@ const PropertyInfo qdev_prop_on_off_auto = {
 void qdev_propinfo_get_size32(Object *obj, Visitor *v, const char *name,
                               void *opaque, Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value = *ptr;
 
     visit_type_size(v, name, &value, errp);
@@ -528,7 +514,7 @@ static void set_size32(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *ptr = qdev_get_prop_ptr(obj, prop);
     uint64_t value;
 
     if (dev->realized) {
@@ -563,9 +549,8 @@ const PropertyInfo qdev_prop_size32 = {
 static void get_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    QemuUUID *uuid = qdev_get_prop_ptr(dev, prop);
+    QemuUUID *uuid = qdev_get_prop_ptr(obj, prop);
     char buffer[UUID_FMT_LEN + 1];
     char *p = buffer;
 
@@ -581,7 +566,7 @@ static void set_uuid(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    QemuUUID *uuid = qdev_get_prop_ptr(dev, prop);
+    QemuUUID *uuid = qdev_get_prop_ptr(obj, prop);
     char *str;
 
     if (dev->realized) {
@@ -653,7 +638,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
      */
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint32_t *alenptr = qdev_get_prop_ptr(dev, prop);
+    uint32_t *alenptr = qdev_get_prop_ptr(obj, prop);
     void **arrayptr = (void *)dev + prop->arrayoffset;
     void *eltptr;
     const char *arrayname;
@@ -699,7 +684,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name,
          * being inside the device struct.
          */
         arrayprop->prop.offset = eltptr - (void *)dev;
-        assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr);
+        assert(qdev_get_prop_ptr(obj, &arrayprop->prop) == eltptr);
         object_property_add(obj, propname,
                             arrayprop->prop.info->name,
                             arrayprop->prop.info->get,
@@ -893,9 +878,8 @@ void qdev_prop_set_globals(DeviceState *dev)
 static void get_size(Object *obj, Visitor *v, const char *name, void *opaque,
                      Error **errp)
 {
-    DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     visit_type_size(v, name, ptr, errp);
 }
@@ -905,7 +889,7 @@ static void set_size(Object *obj, Visitor *v, const char *name, void *opaque,
 {
     DeviceState *dev = DEVICE(obj);
     Property *prop = opaque;
-    uint64_t *ptr = qdev_get_prop_ptr(dev, prop);
+    uint64_t *ptr = qdev_get_prop_ptr(obj, prop);
 
     if (dev->realized) {
         qdev_prop_set_after_realize(dev, name, errp);