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net: ipv6: Add some extra debug when updating link address length

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As this is very specialized info which is not normally needed,
do not print it by default.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2017-08-17 15:47:11 +03:00
parent e5b9e4d6ad
commit d4d0ddd4f7
1 changed files with 18 additions and 0 deletions
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18
subsys/net/ip/ipv6.c
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@ -802,6 +802,24 @@ static struct net_pkt *update_ll_reserve(struct net_pkt *pkt,
NET_DBG("Adjust reserve old %d new %d",
net_pkt_ll_reserve(pkt), reserve);
/* Normally these debug prints are not needed so we do not print them
* always. If your packets get dropped for some reason by L2, then
* you can enable this block to see the IPv6 and LL addresses that
* are used.
*/
if (0) {
NET_DBG("ll src %s",
net_sprint_ll_addr(net_pkt_ll_src(pkt)->addr,
net_pkt_ll_src(pkt)->len));
NET_DBG("ll dst %s",
net_sprint_ll_addr(net_pkt_ll_dst(pkt)->addr,
net_pkt_ll_dst(pkt)->len));
NET_DBG("ip src %s",
net_sprint_ipv6_addr(&NET_IPV6_HDR(pkt)->src));
NET_DBG("ip dst %s",
net_sprint_ipv6_addr(&NET_IPV6_HDR(pkt)->dst));
}
net_pkt_set_ll_reserve(pkt, reserve);
orig_frag = pkt->frags;