lib/talloc: squash 'cast between incompatible function types' warning

To avoid warning above produced by using
-Wcast-function-type we;

  + ensure PyCFunctions of type METH_NOARGS defined dummy arg

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>

lib/talloc/pytalloc.c

@@ -47,7 +47,8 @@ static PyObject *pytalloc_report_full(PyObject *self, PyObject *args)
 }
 
 /* enable null tracking */
-static PyObject *pytalloc_enable_null_tracking(PyObject *self)
+static PyObject *pytalloc_enable_null_tracking(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
 {
 	talloc_enable_null_tracking();
 	return Py_None;

lib/talloc/test_pytalloc.c

@@ -30,25 +30,31 @@
 #include <talloc.h>
 #include <pytalloc.h>
 
-static PyObject *testpytalloc_new(PyTypeObject *mod)
+static PyObject *testpytalloc_new(PyTypeObject *mod,
+		PyObject *Py_UNUSED(ignored))
 {
 	char *obj = talloc_strdup(NULL, "This is a test string");;
 	return pytalloc_steal(pytalloc_GetObjectType(), obj);
 }
 
-static PyObject *testpytalloc_get_object_type(PyObject *mod) {
+static PyObject *testpytalloc_get_object_type(PyObject *mod,
+		PyObject *Py_UNUSED(ignored))
+{
 	PyObject *type = (PyObject *)pytalloc_GetObjectType();
 	Py_INCREF(type);
 	return type;
 }
 
-static PyObject *testpytalloc_base_new(PyTypeObject *mod)
+static PyObject *testpytalloc_base_new(PyTypeObject *mod,
+		PyObject *Py_UNUSED(ignored))
 {
 	char *obj = talloc_strdup(NULL, "This is a test string for a BaseObject");;
 	return pytalloc_steal(pytalloc_GetBaseObjectType(), obj);
 }
 
-static PyObject *testpytalloc_base_get_object_type(PyObject *mod) {
+static PyObject *testpytalloc_base_get_object_type(PyObject *mod,
+		PyObject *Py_UNUSED(ignored))
+{
 	PyObject *type = (PyObject *)pytalloc_GetBaseObjectType();
 	Py_INCREF(type);
 	return type;