[SOCK]: Adds a rcu_dereference() in sk_filter
It seems commit fda9ef5d introduced a RCU protection for sk_filter(), without a rcu_dereference() Either we need a rcu_dereference(), either a comment should explain why we dont need it. I vote for the former. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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