diff --git a/dmentry.c b/dmentry.c
index 4f839636..b58e570a 100644
--- a/dmentry.c
+++ b/dmentry.c
@@ -479,21 +479,6 @@ void free_all_list_enabled_lwnotify()
 	}
 }
 
-int dm_entry_load_enabled_notify(unsigned int dm_type, unsigned int amd_version, int instance_mode, void (*add_list_value_change)(char *param_name, char *param_data, char *param_type), void (*send_active_value_change)(void))
-{
-	struct dmctx dmctx = {0};
-
-	dm_ctx_init(&dmctx, dm_type, amd_version, instance_mode);
-	dmctx.in_param = "";
-
-	free_all_list_enabled_lwnotify();
-	dm_entry_enabled_notify_check_value_change(&dmctx, add_list_value_change, send_active_value_change);
-	dm_entry_enabled_notify(&dmctx, add_list_enabled_lwnotify);
-
-	dm_ctx_clean(&dmctx);
-	return 0;
-}
-
 int dm_entry_reload_enabled_notify(unsigned int dm_type, unsigned int amd_version, int instance_mode)
 {
 	struct dmctx dmctx = {0};
diff --git a/dmentry.h b/dmentry.h
index 83748374..7fd790fe 100644
--- a/dmentry.h
+++ b/dmentry.h
@@ -31,7 +31,6 @@ int dm_ctx_init(struct dmctx *ctx, unsigned int dm_type, unsigned int amd_versio
 int dm_ctx_init_sub(struct dmctx *ctx, unsigned int dm_type, unsigned int amd_version, unsigned int instance_mode);
 int dm_entry_param_method(struct dmctx *ctx, int cmd, char *inparam, char *arg1, char *arg2);
 int dm_entry_apply(struct dmctx *ctx, int cmd, char *arg1, char *arg2);
-int dm_entry_load_enabled_notify(unsigned int dm_type, unsigned int amd_version, int instance_mode, void (*add_list_value_change)(char *param_name, char *param_data, char *param_type), void (*send_active_value_change)(void));
 int dm_entry_reload_enabled_notify(unsigned int dm_type, unsigned int amd_version, int instance_mode);
 int adm_entry_get_linker_param(struct dmctx *ctx, char *param, char *linker, char **value);
 int adm_entry_get_linker_value(struct dmctx *ctx, char *param, char **value);
diff --git a/libbbf_api/dmbbf.c b/libbbf_api/dmbbf.c
index d01753bd..4476ca8d 100644
--- a/libbbf_api/dmbbf.c
+++ b/libbbf_api/dmbbf.c
@@ -81,8 +81,6 @@ static int enabled_tracked_param_check_param(DMPARAM_ARGS);
 #endif
 static int enabled_notify_check_obj(DMOBJECT_ARGS);
 static int enabled_notify_check_param(DMPARAM_ARGS);
-static int enabled_notify_check_value_change_param(DMPARAM_ARGS);
-static int enabled_notify_check_value_change_obj(DMOBJECT_ARGS);
 static int get_linker_check_obj(DMOBJECT_ARGS);
 static int get_linker_check_param(DMPARAM_ARGS);
 static int get_linker_value_check_obj(DMOBJECT_ARGS);
@@ -106,7 +104,6 @@ char dmroot[64] = "Device";
 int bbfdatamodel_type = BBFDM_BOTH;
 
 
-void (*api_add_list_value_change)(char *param_name, char *param_data, char *param_type) = NULL;
 void (*api_send_active_value_change)(void) = NULL;
 void (*api_add_list_enabled_lwnotify)(char *param, char *notification, char *value) = NULL;
 
@@ -1982,75 +1979,6 @@ static int enabled_notify_check_param(DMPARAM_ARGS)
 	return 0;
 }
 
-/*********************
- * Check enabled notify value change
- ********************/
-int dm_entry_enabled_notify_check_value_change(struct dmctx *dmctx, void (*add_list_value_change_arg)(char *param_name, char *param_data, char *param_type), void (*send_active_value_change_arg)(void))
-{
-	DMOBJ *root = dmctx->dm_entryobj;
-	FILE *fp;
-	char buf[512];
-	char *jval;
-
-	fp = fopen(DM_ENABLED_NOTIFY, "r");
-	if (fp == NULL) {
-		return 0;
-	}
-	api_add_list_value_change = add_list_value_change_arg;
-	api_send_active_value_change = send_active_value_change_arg;
-
-	while (fgets(buf, 512, fp) != NULL) {
-		DMNODE node = {.current_object = ""};
-		int len = strlen(buf);
-		if (len)
-			buf[len-1] = '\0';
-		bbf_api_dmjson_parse_init(buf);
-		bbf_api_dmjson_get_string("parameter", &jval);
-		if (jval == NULL || strlen(jval) == 0)
-			continue;
-		dmctx->in_param = dmstrdup(jval?jval:"");
-		bbf_api_dmjson_get_string("value", &jval);
-		dmctx->in_value = dmstrdup(jval?jval:"");
-		bbf_api_dmjson_get_string("notification", &jval);
-		dmctx->in_notification = dmstrdup(jval?jval:"");
-		bbf_api_dmjson_parse_fini();
-		dmctx->checkobj = NULL ;
-		dmctx->checkleaf = NULL;
-		dmctx->method_obj = enabled_notify_check_value_change_obj;
-		dmctx->method_param = enabled_notify_check_value_change_param;
-		dm_browse(dmctx, &node, root, NULL, NULL);
-	}
-	fclose(fp);
-	return 0;
-}
-
-static int enabled_notify_check_value_change_obj(DMOBJECT_ARGS)
-{
-	return FAULT_9005;
-}
-
-static int enabled_notify_check_value_change_param(DMPARAM_ARGS)
-{
-	char *refparam, *value = "";
-	dmastrcat(&refparam, node->current_object, lastname);
-	if (strcmp(refparam, dmctx->in_param) != 0) {
-		dmfree(refparam);
-		return FAULT_9005;
-	}
-	(get_cmd)(refparam, dmctx, data, instance, &value);
-	
-	if (value && strcmp(value, dmctx->in_value) != 0) {
-		if (api_add_list_value_change) {
-			api_add_list_value_change(refparam, value, DMT_TYPE[type]);
-		}
-		if(dmctx->in_notification[0] =='2' && api_send_active_value_change) {
-			api_send_active_value_change();
-		}
-	}
-	dmfree(refparam);
-	return 0;
-}
-
 /******************
  * get linker param
  *****************/
diff --git a/libbbf_api/dmbbf.h b/libbbf_api/dmbbf.h
index dc7b3b64..4a44e385 100644
--- a/libbbf_api/dmbbf.h
+++ b/libbbf_api/dmbbf.h
@@ -66,7 +66,6 @@ extern struct dm_notif_s DMNONE;
 extern struct dm_notif_s DMACTIVE;
 extern struct dm_notif_s DMPASSIVE;
 
-extern void (*api_add_list_value_change)(char *param_name, char *param_data, char *param_type);
 extern void (*api_send_active_value_change)(void);
 extern void (*api_add_list_enabled_lwnotify)(char *param, char *notification, char *value);
 #define DMPARAM_ARGS \
@@ -569,7 +568,6 @@ int dm_entry_delete_object(struct dmctx *ctx);
 int dm_entry_set_value(struct dmctx *ctx);
 int dm_entry_set_notification(struct dmctx *ctx);
 int dm_entry_enabled_notify(struct dmctx *dmctx, void (*add_list_enabled_lwnotify_arg)(char *param, char *notification, char *value));
-int dm_entry_enabled_notify_check_value_change(struct dmctx *dmctx, void (*add_list_value_change_arg)(char *param_name, char *param_data, char *param_type), void (*send_active_value_change_arg)(void));
 int dm_entry_get_linker(struct dmctx *ctx);
 int dm_entry_get_linker_value(struct dmctx *ctx);
 #ifdef BBF_TR064