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gnrc_ipv6_nib: fix caching mechanism of neighbor cache

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This commit is contained in:
Martine Lenders 2017-06-13 15:51:43 +02:00
parent 58067bd489
commit b32200e3ad
1 changed files with 9 additions and 10 deletions
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19
sys/net/gnrc/network_layer/ipv6/nib/_nib-internal.c
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@ -123,19 +123,18 @@ static inline _nib_onl_entry_t *_cache_out_onl_entry(const ipv6_addr_t *addr,
res = tmp;
res->mode = _EMPTY;
_override_node(addr, iface, res);
/* cstate masked above already */
res->info = cstate;
/* cstate masked in _nib_nc_add() already */
res->info |= cstate;
res->mode = _NC;
break;
}
/* requeue if not garbage collectible at the moment */
DEBUG("nib: Requeing (addr = %s, iface = %u)\n",
ipv6_addr_to_str(addr_str, &tmp->ipv6,
sizeof(addr_str)),
_nib_onl_get_if(tmp));
/* requeue if not garbage collectible at the moment or queueing
* newly created NCE */
clist_rpush(&_next_removable, (clist_node_t *)tmp);
tmp = (_nib_onl_entry_t *)clist_lpop(&_next_removable);
} while (tmp != first);
if (res == NULL) {
/* no new entry created yet, get next entry in FIFO */
tmp = (_nib_onl_entry_t *)clist_lpop(&_next_removable);
}
} while ((tmp != first) && (res != NULL));
return res;
}