netdev - Re: [PATCH] gso: Handle Trans-Ether-Bridging protocol in skb_network

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Date:	Wed, 08 May 2013 00:42:49 -0700
From:	PJ Waskiewicz <peter.p.waskiewicz.jr@...ux.intel.com>
To:	Pravin B Shelar <pshelar@...ira.com>
CC:	netdev@...r.kernel.org, Eric Dumazet <eric.dumazet@...il.com>,
	Cong Wang <amwang@...hat.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH] gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol()

On 5/7/2013 11:41 PM, Pravin B Shelar wrote:
> Rather than having logic to calculate inner protocol in every
> tunnel gso handler move it to gso code. This simplifies code.

Moving code that isn't used on a regular basis to hotpath for most 
networking to simplify code isn't always a good thing.

Have you run tests on non-tunneled streams using GSO to make sure there 
isn't an adverse impact to performance due to the new, untaken branch?

-PJ
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