From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH net-next v4] rps: selective flow shedding during softnet
 overflow
Date: Tue, 23 Apr 2013 16:26:31 -0700
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To: David Miller <davem@davemloft.net>
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On Tue, 2013-04-23 at 19:15 -0400, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Tue, 23 Apr 2013 16:11:23 -0700
> 
> > I guess we should at least not include this code on !SMP builds
> 
> I think CONFIG_RPS already an appropriate guard for something like
> this.  And it depends upon SMP et al.

Yes, something like :

config NET_FLOW_LIMIT
	bool "Flow shedding under load"
	depends on RPS
	default y