From: Shiraz Hashim <shiraz.hashim@st.com>
Date: Sun, 17 Jul 2011 20:54:08 +0000 (+0000)
Subject: stmmac: add memory barriers at appropriate places
X-Git-Tag: v3.1-rc1~316^2~105
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb0dc4bb2e22c04964d6e9545e86f629f117108b;p=pandora-kernel.git

stmmac: add memory barriers at appropriate places

This patch, provided by ST SPEAr developers,
has fixed a problem raised on ARM CA9 where
happened that the dma_transmission was enabled before
the dma descriptors were properly filled. To guarantee this
data memory barriers have been explicity used in the driver.

Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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