| commit | 7d7355f58ba4f9d68d2fb79864bab4ccb618e4e1 | [log] [tgz] |
|---|---|---|
| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | Tue Mar 03 00:52:00 2015 +0000 |
| committer | David S. Miller <davem@davemloft.net> | Mon Mar 02 21:30:56 2015 -0500 |
| tree | 79a7efdc9a433f1c5f05651adc70c2579760c313 | |
| parent | eee617a1c35dbf598690879f13dc3df548fd6ea6 [diff] |
sh_eth: Ensure proper ordering of descriptor active bit write/read When submitting a DMA descriptor, the active bit must be written last. When reading a completed DMA descriptor, the active bit must be read first. Add memory barriers to ensure that this ordering is maintained. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>