exec/memory: Use struct Object typedef

We forward-declare Object typedef in "qemu/typedefs.h" since commit
ca27b5eb7cd ("qom/object: Move Object typedef to 'qemu/typedefs.h'").
Use it everywhere to make the code simpler.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210225182003.3629342-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/include/exec/memory.h b/include/exec/memory.h
index c6fb714..54ccf1a 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -828,7 +828,7 @@
  * @size: size of the region; any subregions beyond this size will be clipped
  */
 void memory_region_init(MemoryRegion *mr,
-                        struct Object *owner,
+                        Object *owner,
                         const char *name,
                         uint64_t size);
 
@@ -876,7 +876,7 @@
  * @size: size of the region.
  */
 void memory_region_init_io(MemoryRegion *mr,
-                           struct Object *owner,
+                           Object *owner,
                            const MemoryRegionOps *ops,
                            void *opaque,
                            const char *name,
@@ -898,7 +898,7 @@
  * RAM memory region to be migrated; that is the responsibility of the caller.
  */
 void memory_region_init_ram_nomigrate(MemoryRegion *mr,
-                                      struct Object *owner,
+                                      Object *owner,
                                       const char *name,
                                       uint64_t size,
                                       Error **errp);
@@ -920,7 +920,7 @@
  * The only difference is part of the RAM region can be remapped.
  */
 void memory_region_init_ram_shared_nomigrate(MemoryRegion *mr,
-                                             struct Object *owner,
+                                             Object *owner,
                                              const char *name,
                                              uint64_t size,
                                              bool share,
@@ -946,7 +946,7 @@
  * RAM memory region to be migrated; that is the responsibility of the caller.
  */
 void memory_region_init_resizeable_ram(MemoryRegion *mr,
-                                       struct Object *owner,
+                                       Object *owner,
                                        const char *name,
                                        uint64_t size,
                                        uint64_t max_size,
@@ -979,7 +979,7 @@
  * RAM memory region to be migrated; that is the responsibility of the caller.
  */
 void memory_region_init_ram_from_file(MemoryRegion *mr,
-                                      struct Object *owner,
+                                      Object *owner,
                                       const char *name,
                                       uint64_t size,
                                       uint64_t align,
@@ -1005,7 +1005,7 @@
  * RAM memory region to be migrated; that is the responsibility of the caller.
  */
 void memory_region_init_ram_from_fd(MemoryRegion *mr,
-                                    struct Object *owner,
+                                    Object *owner,
                                     const char *name,
                                     uint64_t size,
                                     bool share,
@@ -1030,7 +1030,7 @@
  * RAM memory region to be migrated; that is the responsibility of the caller.
  */
 void memory_region_init_ram_ptr(MemoryRegion *mr,
-                                struct Object *owner,
+                                Object *owner,
                                 const char *name,
                                 uint64_t size,
                                 void *ptr);
@@ -1058,7 +1058,7 @@
  * (For RAM device memory regions, migrating the contents rarely makes sense.)
  */
 void memory_region_init_ram_device_ptr(MemoryRegion *mr,
-                                       struct Object *owner,
+                                       Object *owner,
                                        const char *name,
                                        uint64_t size,
                                        void *ptr);
@@ -1076,7 +1076,7 @@
  * @size: size of the region.
  */
 void memory_region_init_alias(MemoryRegion *mr,
-                              struct Object *owner,
+                              Object *owner,
                               const char *name,
                               MemoryRegion *orig,
                               hwaddr offset,
@@ -1101,7 +1101,7 @@
  * @errp: pointer to Error*, to store an error if it happens.
  */
 void memory_region_init_rom_nomigrate(MemoryRegion *mr,
-                                      struct Object *owner,
+                                      Object *owner,
                                       const char *name,
                                       uint64_t size,
                                       Error **errp);
@@ -1124,7 +1124,7 @@
  * @errp: pointer to Error*, to store an error if it happens.
  */
 void memory_region_init_rom_device_nomigrate(MemoryRegion *mr,
-                                             struct Object *owner,
+                                             Object *owner,
                                              const MemoryRegionOps *ops,
                                              void *opaque,
                                              const char *name,
@@ -1183,7 +1183,7 @@
  * If you pass a non-NULL non-device @owner then we will assert.
  */
 void memory_region_init_ram(MemoryRegion *mr,
-                            struct Object *owner,
+                            Object *owner,
                             const char *name,
                             uint64_t size,
                             Error **errp);
@@ -1210,7 +1210,7 @@
  * @errp: pointer to Error*, to store an error if it happens.
  */
 void memory_region_init_rom(MemoryRegion *mr,
-                            struct Object *owner,
+                            Object *owner,
                             const char *name,
                             uint64_t size,
                             Error **errp);
@@ -1241,7 +1241,7 @@
  * @errp: pointer to Error*, to store an error if it happens.
  */
 void memory_region_init_rom_device(MemoryRegion *mr,
-                                   struct Object *owner,
+                                   Object *owner,
                                    const MemoryRegionOps *ops,
                                    void *opaque,
                                    const char *name,
@@ -1254,7 +1254,7 @@
  *
  * @mr: the memory region being queried.
  */
-struct Object *memory_region_owner(MemoryRegion *mr);
+Object *memory_region_owner(MemoryRegion *mr);
 
 /**
  * memory_region_size: get a memory region's size.