net/sched: annotate lockless accesses to qdisc->empty

[tomoyo/tomoyo-test1.git] / net / core / dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index bb15800..1c799d4 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3607,7 +3607,7 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
        qdisc_calculate_pkt_len(skb, q);
 
        if (q->flags & TCQ_F_NOLOCK) {
-               if ((q->flags & TCQ_F_CAN_BYPASS) && q->empty &&
+               if ((q->flags & TCQ_F_CAN_BYPASS) && READ_ONCE(q->empty) &&
                    qdisc_run_begin(q)) {
                        if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED,
                                              &q->state))) {