The gen bits must be read first from (resp. written last to) DMA memory.
The proper way to enforce this on Linux is to call dma_rmb() (resp.
dma_wmb()).
Signed-off-by: NRegis Duchesne <hpreg@vmware.com>
Acked-by: NRonak Doshi <doshir@vmware.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>