static void exec_write_complete_cb(struct gatt_db_attribute *attr, int err,
								void *user_data)
{
	struct exec_data *data = user_data;
	uint16_t handle = gatt_db_attribute_get_handle(attr);

	exec_next_prep_write(data, handle, err);
}
static void exec_write_complete_cb(struct gatt_db_attribute *attr, int err,
								void *user_data)
{
	struct exec_data *data = user_data;
	uint16_t handle = gatt_db_attribute_get_handle(attr);

	exec_next_prep_write(data, handle, err);
}