batman-adv: reuse tt_len() to calculate tt buffer length

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/aggregation.h b/net/batman-adv/aggregation.h
index 216337b..df4a5a9 100644 (file)
--- a/net/batman-adv/aggregation.h
+++ b/net/batman-adv/aggregation.h
@@ -28,8 +28,7 @@
 static inline int aggregated_packet(int buff_pos, int packet_len,
                                    int tt_num_changes)
 {
-       int next_buff_pos = buff_pos + BAT_PACKET_LEN + (tt_num_changes *
-                                               sizeof(struct tt_change));
+       int next_buff_pos = buff_pos + BAT_PACKET_LEN + tt_len(tt_num_changes);
 
        return (next_buff_pos <= packet_len) &&
                (next_buff_pos <= MAX_AGGREGATION_BYTES);