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Date: Wed, 30 Apr 2014 10:00:28 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: John Fastabend <john.fastabend@...il.com> Cc: xiyou.wangcong@...il.com, jhs@...atatu.com, netdev@...r.kernel.org, davem@...emloft.net Subject: Re: [RFC PATCH 01/15] net: qdisc: use rcu prefix and silence sparse warnings On Wed, 2014-04-30 at 09:35 -0700, John Fastabend wrote: > static inline struct Qdisc *qdisc_root(const struct Qdisc *qdisc) > { > - return qdisc->dev_queue->qdisc; > + struct Qdisc *q = rcu_dereference(qdisc->dev_queue->qdisc); > + > + return q; > } > Hmm... I am pretty sure this can be called without rcu_read_lock() rcu_dereference_rtnl() would be more appropriate here I think. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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