netdev - Re: [PATCH net] vxlan: Use RCU apis to access sk_user

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Message-ID: <20130924092050.2c80bc74@nehalam.linuxnetplumber.net>
Date:	Tue, 24 Sep 2013 09:20:50 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Pravin B Shelar <pshelar@...ira.com>
Cc:	netdev@...r.kernel.org, Jesse Gross <jesse@...ira.com>
Subject: Re: [PATCH net] vxlan: Use RCU apis to access sk_user_data.

On Mon, 23 Sep 2013 22:28:21 -0700
Pravin B Shelar <pshelar@...ira.com> wrote:

>  
> +#define sk_user_data_rcu(sk) ((*((void __rcu **)&(sk)->sk_user_data)))

I don't like the macro, is it just to keep sparse happy?
The name also implies that rcu_dereference() is built in.
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