Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/qom/object.h     | 2 +-
 hw/core/machine.c        | 2 +-
 hw/core/qdev.c           | 2 +-
 hw/pci/pci.c             | 2 +-
 qom/object.c             | 2 +-
 rust/qemu-api/src/qom.rs | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/qom/object.h b/include/qom/object.h
index 9192265db76..7bb14ca7067 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -487,7 +487,7 @@ struct TypeInfo
     size_t class_size;
 
     void (*class_init)(ObjectClass *klass, void *data);
-    void (*class_base_init)(ObjectClass *klass, void *data);
+    void (*class_base_init)(ObjectClass *klass, const void *data);
     void *class_data;
 
     InterfaceInfo *interfaces;
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 254cc20c4cb..7bdde9286c2 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1236,7 +1236,7 @@ static void machine_class_init(ObjectClass *oc, void *data)
         "Memory size configuration");
 }
 
-static void machine_class_base_init(ObjectClass *oc, void *data)
+static void machine_class_base_init(ObjectClass *oc, const void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
     mc->max_cpus = mc->max_cpus ?: 1;
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 2745b5e0929..1e0f47cc848 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -693,7 +693,7 @@ static void device_finalize(Object *obj)
     g_free(dev->id);
 }
 
-static void device_class_base_init(ObjectClass *class, void *data)
+static void device_class_base_init(ObjectClass *class, const void *data)
 {
     DeviceClass *klass = DEVICE_CLASS(class);
 
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 2afa423925c..00f50e6f2cc 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2712,7 +2712,7 @@ static void pci_device_class_init(ObjectClass *klass, void *data)
         "access to indirect DMA memory");
 }
 
-static void pci_device_class_base_init(ObjectClass *klass, void *data)
+static void pci_device_class_base_init(ObjectClass *klass, const void *data)
 {
     if (!object_class_is_abstract(klass)) {
         ObjectClass *conventional =
diff --git a/qom/object.c b/qom/object.c
index 01618d06bd8..dfd59502d11 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -55,7 +55,7 @@ struct TypeImpl
     size_t instance_align;
 
     void (*class_init)(ObjectClass *klass, void *data);
-    void (*class_base_init)(ObjectClass *klass, void *data);
+    void (*class_base_init)(ObjectClass *klass, const void *data);
 
     void *class_data;
 
diff --git a/rust/qemu-api/src/qom.rs b/rust/qemu-api/src/qom.rs
index f50ee371aac..f3d43e066ef 100644
--- a/rust/qemu-api/src/qom.rs
+++ b/rust/qemu-api/src/qom.rs
@@ -475,7 +475,7 @@ pub trait ObjectImpl: ObjectType + ClassInitImpl<Self::Class> {
     /// the effects of copying the contents of the parent's class struct
     /// to the descendants.
     const CLASS_BASE_INIT: Option<
-        unsafe extern "C" fn(klass: *mut ObjectClass, data: *mut c_void),
+        unsafe extern "C" fn(klass: *mut ObjectClass, data: *const c_void),
     > = None;
 
     const TYPE_INFO: TypeInfo = TypeInfo {
-- 
2.47.1