batman-adv: generalize batman-adv icmp packet handling

[cascardo/linux.git] / net / batman-adv / packet.h

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 843b96a..207459b 100644 (file)
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -239,6 +239,8 @@ struct batadv_icmp_packet_rr {
        uint8_t  rr[BATADV_RR_LEN][ETH_ALEN];
 };
 
+#define BATADV_ICMP_MAX_PACKET_SIZE    sizeof(struct batadv_icmp_packet_rr)
+
 /* All packet headers in front of an ethernet header have to be completely
  * divisible by 2 but not by 4 to make the payload after the ethernet
  * header again 4 bytes boundary aligned.