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First thing tipc_udp_recv() does is to use rcu_dereference_sk_user_data(),
and this is really hinting we already own rcu_read_lock() from the caller
(UDP stack).
No need to add another rcu_read_lock()/rcu_read_unlock() pair.
Also use rcu_dereference() instead of rcu_dereference_rtnl()
in the data path.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4109a2c3b9