[Qemu-devel] [PULL 16/41] qdev: wrap default property value in an union

[Markus Armbruster <armbru@redhat.com>]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Wrap the Property default value (an int64_t) in a union, to prepare
for the next patch adding a uint64_t.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-17-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/core/qdev-properties.c    | 6 +++---
 include/hw/qdev-core.h       | 4 +++-
 include/hw/qdev-properties.h | 8 ++++----
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index c5e028a..f3f682c 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -71,7 +71,7 @@ static void set_enum(Object *obj, Visitor *v, const char *name, void *opaque,
 
 static void set_default_value_enum(Object *obj, const Property *prop)
 {
-    object_property_set_str(obj, prop->info->enum_table[prop->defval],
+    object_property_set_str(obj, prop->info->enum_table[prop->defval.i],
                             prop->name, &error_abort);
 }
 
@@ -128,7 +128,7 @@ static void prop_set_bit(Object *obj, Visitor *v, const char *name,
 
 static void set_default_value_bool(Object *obj, const Property *prop)
 {
-    object_property_set_bool(obj, prop->defval, prop->name, &error_abort);
+    object_property_set_bool(obj, prop->defval.i, prop->name, &error_abort);
 }
 
 PropertyInfo qdev_prop_bit = {
@@ -261,7 +261,7 @@ static void set_uint8(Object *obj, Visitor *v, const char *name, void *opaque,
 
 static void set_default_value_int(Object *obj, const Property *prop)
 {
-    object_property_set_int(obj, prop->defval, prop->name, &error_abort);
+    object_property_set_int(obj, prop->defval.i, prop->name, &error_abort);
 }
 
 PropertyInfo qdev_prop_uint8 = {
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 9523339..784971b 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -226,7 +226,9 @@ struct Property {
     PropertyInfo *info;
     ptrdiff_t    offset;
     uint8_t      bitnr;
-    int64_t      defval;
+    union {
+        int64_t i;
+    } defval;
     int          arrayoffset;
     PropertyInfo *arrayinfo;
     int          arrayfieldsize;
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
index 0560380..34524d0 100644
--- a/include/hw/qdev-properties.h
+++ b/include/hw/qdev-properties.h
@@ -42,7 +42,7 @@ extern PropertyInfo qdev_prop_arraylen;
         .info      = &(_prop),                                          \
         .offset    = offsetof(_state, _field)                           \
             + type_check(_type,typeof_field(_state, _field)),           \
-        .defval    = (_type)_defval,                                    \
+        .defval.i  = (_type)_defval,                                    \
         }
 #define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) {  \
         .name      = (_name),                                    \
@@ -50,7 +50,7 @@ extern PropertyInfo qdev_prop_arraylen;
         .bitnr    = (_bit),                                      \
         .offset    = offsetof(_state, _field)                    \
             + type_check(uint32_t,typeof_field(_state, _field)), \
-        .defval    = (bool)_defval,                              \
+        .defval.i  = (bool)_defval,                              \
         }
 #define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) {       \
         .name      = (_name),                                           \
@@ -58,7 +58,7 @@ extern PropertyInfo qdev_prop_arraylen;
         .bitnr    = (_bit),                                             \
         .offset    = offsetof(_state, _field)                           \
             + type_check(uint64_t, typeof_field(_state, _field)),       \
-        .defval    = (bool)_defval,                                     \
+        .defval.i  = (bool)_defval,                                     \
         }
 
 #define DEFINE_PROP_BOOL(_name, _state, _field, _defval) {       \
@@ -66,7 +66,7 @@ extern PropertyInfo qdev_prop_arraylen;
         .info      = &(qdev_prop_bool),                          \
         .offset    = offsetof(_state, _field)                    \
             + type_check(bool, typeof_field(_state, _field)),    \
-        .defval    = (bool)_defval,                              \
+        .defval.i  = (bool)_defval,                              \
         }
 
 #define PROP_ARRAY_LEN_PREFIX "len-"
-- 
2.7.5