Move return value of rb_gc_impl_config_set to gc.c

gc.c

@@ -588,7 +588,7 @@ typedef struct gc_function_map {
     void (*gc_disable)(void *objspace_ptr, bool finish_current_gc);
     bool (*gc_enabled_p)(void *objspace_ptr);
     VALUE (*config_get)(void *objpace_ptr);
-    VALUE (*config_set)(void *objspace_ptr, VALUE hash);
+    void (*config_set)(void *objspace_ptr, VALUE hash);
     void (*stress_set)(void *objspace_ptr, VALUE flag);
     VALUE (*stress_get)(void *objspace_ptr);
     // Object allocation
@@ -3432,7 +3432,11 @@ gc_config_get(rb_execution_context_t *ec, VALUE self)
 static VALUE
 gc_config_set(rb_execution_context_t *ec, VALUE self, VALUE hash)
 {
-    return rb_gc_impl_config_set(rb_gc_get_objspace(), hash);
+    void *objspace = rb_gc_get_objspace();
+
+    rb_gc_impl_config_set(objspace, hash);
+
+    return rb_gc_impl_config_get(objspace);
 }
 
 static VALUE

gc/default.c

@@ -7718,17 +7718,16 @@ gc_config_set_key(st_data_t key, st_data_t value, st_data_t data)
     return ST_CONTINUE;
 }
 
-VALUE
+void
 rb_gc_impl_config_set(void *objspace_ptr, VALUE hash)
 {
     rb_objspace_t *objspace = objspace_ptr;
 
-    if(!RB_TYPE_P(hash, T_HASH)) {
+    if (!RB_TYPE_P(hash, T_HASH)) {
         rb_raise(rb_eArgError, "expected keyword arguments");
     }
 
     rb_hash_stlike_foreach(hash, gc_config_set_key, (st_data_t)objspace);
-    return rb_gc_impl_config_get(objspace_ptr);
 }
 
 VALUE

gc/gc_impl.h

@@ -45,7 +45,7 @@ GC_IMPL_FN bool rb_gc_impl_gc_enabled_p(void *objspace_ptr);
 GC_IMPL_FN void rb_gc_impl_stress_set(void *objspace_ptr, VALUE flag);
 GC_IMPL_FN VALUE rb_gc_impl_stress_get(void *objspace_ptr);
 GC_IMPL_FN VALUE rb_gc_impl_config_get(void *objspace_ptr);
-GC_IMPL_FN VALUE rb_gc_impl_config_set(void *objspace_ptr, VALUE hash);
+GC_IMPL_FN void rb_gc_impl_config_set(void *objspace_ptr, VALUE hash);
 // Object allocation
 GC_IMPL_FN VALUE rb_gc_impl_new_obj(void *objspace_ptr, void *cache_ptr, VALUE klass, VALUE flags, VALUE v1, VALUE v2, VALUE v3, bool wb_protected, size_t alloc_size);
 GC_IMPL_FN size_t rb_gc_impl_obj_slot_size(VALUE obj);