netdev - Re: [PATCH net-next] net: ovs: use CRC32 accelerated flow hash if available

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Date:	Tue, 10 Dec 2013 17:38:32 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	tgraf@...hat.com
Cc:	jesse@...ira.com, ffusco@...hat.com, netdev@...r.kernel.org,
	dev@...nvswitch.org, dborkman@...hat.com
Subject: Re: [PATCH net-next] net: ovs: use CRC32 accelerated flow hash if
 available

From: Thomas Graf <tgraf@...hat.com>
Date: Tue, 10 Dec 2013 21:47:48 +0100

> We were not sure whether the runtime check, function pointer and
> hardware dependencies are something other subsystems that are less
> x86_64 centric would want to live with.

The things you are listing as implicit overhead can be eliminated
almost entirely using static branches.
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