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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] tcp: unify tcp flag macros
Date: Sat, 12 Jun 2010 14:17:15 -0700 (PDT)
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From: Changli Gao <xiaosuo@gmail.com>
Date: Sat, 12 Jun 2010 17:21:09 +0800

> The same macros are definied by BSDs too. So I think it is better to
> keep them the same.

That is an absolutely meaningless argument.

This is a "net/*.h" header, not something in "linux/*.h"
that application in userspace might want access to.

It's entirely private to the kernel, therefore we do what
makes the most sense (from a cleanliness and namespace
perspective) rather than "what other people do."