netdev - Re: [Patch net-next] bridge: add some missing _

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Date:	Thu, 14 Feb 2013 16:23:25 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	netdev@...r.kernel.org, Vlad Yasevich <vyasevic@...hat.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net-next] bridge: add some missing __rcu marks

On Wed, 2013-02-13 at 22:39 -0800, Stephen Hemminger wrote:
> On Thu, 14 Feb 2013 14:12:30 +0800
> Cong Wang <amwang@...hat.com> wrote:
> >  #ifdef CONFIG_NET_POLL_CONTROLLER
> > -static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
> > +static inline struct netpoll_info __rcu *br_netpoll_info(struct net_bridge *br)
> >  {
> >  	return br->dev->npinfo;
> >  }
> 
> 
> This doesn't seem right since there is no rcu_dereference() here.

But we don't dereference ->npinfo here, we only check if it is NULL.


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