| commit | ca32723afedd65d612029705446bf44bde5eab14 | [log] [tgz] |
|---|---|---|
| author | Rob Herring <rob.herring@calxeda.com> | Fri Aug 30 16:49:23 2013 -0500 |
| committer | David S. Miller <davem@davemloft.net> | Tue Sep 03 22:21:15 2013 -0400 |
| tree | ab65afe5d86f42a087990bce3b94f36470ac58b6 | |
| parent | 1a1d4d2f30a3c7e91bb7876df95baae363be5434 [diff] |
net: calxedaxgmac: update ring buffer tx_head after barriers Ensure that the descriptor writes are visible before the ring buffer head is updated. Since writel is a barrier, we can simply update the head after the writel. Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>