netdev - Re: [PATCH] fib_trie: fix warning from rcu_assign

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Message-Id: <20080322.180223.90499780.davem@davemloft.net>
Date:	Sat, 22 Mar 2008 18:02:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	paulmck@...ux.vnet.ibm.com
Cc:	shemminger@...tta.com, netdev@...r.kernel.org
Subject: Re: [PATCH] fib_trie: fix warning from rcu_assign_poinger

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Date: Tue, 18 Mar 2008 07:06:54 -0700

> On Mon, Mar 17, 2008 at 02:27:06PM -0700, Stephen Hemminger wrote:
> > This gets rid of a warning caused by the test in rcu_assign_pointer.
> > I tried to fix rcu_assign_pointer, but that devolved into a long
> > set of discussions about doing it right that came to no real solution.
> > Since the test in rcu_assign_pointer for constant NULL would never succeed in
> > fib_trie, just open code instead.
> 
> Indeed -- fooling gcc is nontrivial.  :-/
> 
> Acked-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>

Applied, thanks everyone.
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