diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index e9ae1569ffcf..be7018e8ac59 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -308,7 +308,7 @@ void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset, MemoryRegion *mr)
 }
 
 void pnv_xscom_region_init(MemoryRegion *mr,
-                           struct Object *owner,
+                           Object *owner,
                            const MemoryRegionOps *ops,
                            void *opaque,
                            const char *name,
diff --git a/include/exec/memory.h b/include/exec/memory.h
index c6fb714e499c..54ccf1a5f09b 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -828,7 +828,7 @@ static inline bool MemoryRegionSection_eq(MemoryRegionSection *a,
  * @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 @@ void memory_region_unref(MemoryRegion *mr);
  * @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 @@ void memory_region_init_io(MemoryRegion *mr,
  * 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 @@ void memory_region_init_ram_nomigrate(MemoryRegion *mr,
  * 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 @@ void memory_region_init_ram_shared_nomigrate(MemoryRegion *mr,
  * 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 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
  * 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 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
  * 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 @@ void memory_region_init_ram_from_fd(MemoryRegion *mr,
  * 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 @@ void memory_region_init_ram_ptr(MemoryRegion *mr,
  * (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 @@ void memory_region_init_ram_device_ptr(MemoryRegion *mr,
  * @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 @@ void memory_region_init_alias(MemoryRegion *mr,
  * @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 @@ void memory_region_init_rom_nomigrate(MemoryRegion *mr,
  * @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 @@ void memory_region_init_iommu(void *_iommu_mr,
  * 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 @@ void memory_region_init_ram(MemoryRegion *mr,
  * @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 @@ void memory_region_init_rom(MemoryRegion *mr,
  * @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 @@ void memory_region_init_rom_device(MemoryRegion *mr,
  *
  * @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.
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 8578f5a207df..2ff9f7a8d6fe 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -139,7 +139,7 @@ int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
 void pnv_xscom_add_subregion(PnvChip *chip, hwaddr offset,
                              MemoryRegion *mr);
 void pnv_xscom_region_init(MemoryRegion *mr,
-                           struct Object *owner,
+                           Object *owner,
                            const MemoryRegionOps *ops,
                            void *opaque,
                            const char *name,
diff --git a/softmmu/memory.c b/softmmu/memory.c
index 874a8fccdee4..91f1bf47c301 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -1581,7 +1581,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
 
 #ifdef CONFIG_POSIX
 void memory_region_init_ram_from_file(MemoryRegion *mr,
-                                      struct Object *owner,
+                                      Object *owner,
                                       const char *name,
                                       uint64_t size,
                                       uint64_t align,
@@ -1607,7 +1607,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
 }
 
 void memory_region_init_ram_from_fd(MemoryRegion *mr,
-                                    struct Object *owner,
+                                    Object *owner,
                                     const char *name,
                                     uint64_t size,
                                     bool share,
@@ -1679,7 +1679,7 @@ void memory_region_init_alias(MemoryRegion *mr,
 }
 
 void memory_region_init_rom_nomigrate(MemoryRegion *mr,
-                                      struct Object *owner,
+                                      Object *owner,
                                       const char *name,
                                       uint64_t size,
                                       Error **errp)
@@ -3205,7 +3205,7 @@ void mtree_info(bool flatview, bool dispatch_tree, bool owner, bool disabled)
 }
 
 void memory_region_init_ram(MemoryRegion *mr,
-                            struct Object *owner,
+                            Object *owner,
                             const char *name,
                             uint64_t size,
                             Error **errp)
@@ -3229,7 +3229,7 @@ void memory_region_init_ram(MemoryRegion *mr,
 }
 
 void memory_region_init_rom(MemoryRegion *mr,
-                            struct Object *owner,
+                            Object *owner,
                             const char *name,
                             uint64_t size,
                             Error **errp)
@@ -3253,7 +3253,7 @@ void memory_region_init_rom(MemoryRegion *mr,
 }
 
 void memory_region_init_rom_device(MemoryRegion *mr,
-                                   struct Object *owner,
+                                   Object *owner,
                                    const MemoryRegionOps *ops,
                                    void *opaque,
                                    const char *name,
