From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [net-next.git 2/7] stmmac: review barriers
Date: Thu, 04 Apr 2013 08:08:14 -0700
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Cc: Shiraz HASHIM <shiraz.hashim@st.com>,
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	Deepak Sikri <deepak.sikri@st.com>,
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To: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
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On Thu, 2013-04-04 at 08:06 +0200, Giuseppe CAVALLARO wrote:

> In fact, if we can demonstrate that barriers are needed no problem to
> keep them in the code. Otherwise I prefer to remove them.
> 
> What do you think?

I think there are needed, and its really obvious.

Now maybe your arch can define wmb() as a pure compiler barrier(), but
thats a completely different patch.