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fix rpl_find_preferred_parent

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This commit is contained in:
Ludwig Ortmann 2013-11-21 18:50:56 +01:00
parent c383ec4600
commit 336449d8bb
1 changed files with 4 additions and 0 deletions
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4
sys/net/rpl/rpl_dodag.c
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@ -249,6 +249,10 @@ rpl_parent_t *rpl_find_preferred_parent(void)
return NULL;
}
if (my_dodag->my_preferred_parent == NULL) {
my_dodag->my_preferred_parent = best;
}
if (!rpl_equal_id(&my_dodag->my_preferred_parent->addr, &best->addr)) {
if (my_dodag->mop != NO_DOWNWARD_ROUTES) {
/* send DAO with ZERO_LIFETIME to old parent */