stmmac: add memory barriers at appropriate places

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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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Shiraz Hashim 2011-07-17 20:54:08 +00:00 • committed by David S. Miller

parent bab632d69e

commit eb0dc4bb2e

1 changed files with 5 additions and 0 deletions

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drivers/net/stmmac/stmmac_main.c

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