batadv_sum_counter
stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX);
stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES);
stats->tx_dropped = batadv_sum_counter(bat_priv, BATADV_CNT_TX_DROPPED);
stats->rx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_RX);
stats->rx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_RX_BYTES);
data[i] = batadv_sum_counter(bat_priv, i);