Commit 634a4b20 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by David S. Miller
Browse files

net: suppress lockdep-RCU false positive in FIB trie.



Allow fib_find_node() to be called either under rcu_read_lock()
protection or with RTNL held.
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent af984413
......@@ -961,7 +961,9 @@ fib_find_node(struct trie *t, u32 key)
struct node *n;
pos = 0;
n = rcu_dereference(t->trie);
n = rcu_dereference_check(t->trie,
rcu_read_lock_held() ||
lockdep_rtnl_is_held());
while (n != NULL && NODE_TYPE(n) == T_TNODE) {
tn = (struct tnode *) n;
......
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