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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v3] net: Allow no-cache copy from user on transmit
Date: Mon, 04 Apr 2011 13:05:38 -0700 (PDT)
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From: Tom Herbert <therbert@google.com>
Date: Mon, 4 Apr 2011 12:44:08 -0700

> I'll take them out, but that will result in one needless conditional
> in the transmit path for architectures that don't support the no cache
> copy, which seems to be everything except x86!?

I think this is a small price to pay for the build regression
exposure, and perheps it's also a bit of an incentive for more
architectures to support nocache copies :-)