net: fix suspicious rcu_dereference_check in net/sched/sch_fq_codel.c

commit 46e5da4 (net: qdisc: use rcu prefix and silence sparse warnings) triggers a spurious warning: net/sched/sch_fq_codel.c:97 suspicious rcu_dereference_check() usage! The code should be using the _bh variant of rcu_dereference. Signed-off-by: Valdis Kletnieks <[email protected]> Acked-by: Eric Dumazet <[email protected]> Acked-by: John Fastabend <[email protected]> Signed-off-by: David S. Miller <[email protected]>
jbg · Dec 10, 2014 · 69204cf · 69204cf
1 parent 11d3d2a
commit 69204cf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
@@ -94,7 +94,7 @@ static unsigned int fq_codel_classify(struct sk_buff *skb, struct Qdisc *sch,
 	    TC_H_MIN(skb->priority) <= q->flows_cnt)
 		return TC_H_MIN(skb->priority);
 
-	filter = rcu_dereference(q->filter_list);
+	filter = rcu_dereference_bh(q->filter_list);
 	if (!filter)
 		return fq_codel_hash(q, skb) + 1;