From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2 net-next] tcp: fix ABC in tcp_slow_start()
Date: Fri, 20 Jul 2012 11:02:34 -0700 (PDT)
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From: Stephen Hemminger <stephen.hemminger@vyatta.com>
Date: Fri, 20 Jul 2012 11:01:43 -0700

> TCP ABC was an experiment that failed. It solves a problem that does
> not exist on Linux. I did the implementation mostly to prove that.
> 
> Perhaps it abc should just be removed?

This is my impression as well.