553e2ab313
Currently, the code pulls out the length field when unmapping a buffer directly from the descriptor. This will result in an uncached read to a dma_alloc_coherent() region. There is no need to do this, so this patch simply puts the value directly into a data structure which will hit the cache. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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