async_tx: kill ASYNC_TX_ASSUME_COHERENT

Remove the unused ASYNC_TX_ASSUME_COHERENT flag.  Async_tx is
meant to hide the difference between asynchronous hardware and synchronous
software operations, this flag requires clients to understand cache
coherency consequences of the async path.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index bdca3f1b3213..3d59d371dd32 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -47,7 +47,6 @@ struct dma_chan_ref {
  * address is an implied source, whereas the asynchronous case it must be listed
  * as a source.  The destination address must be the first address in the source
  * array.
- * @ASYNC_TX_ASSUME_COHERENT: skip cache maintenance operations
  * @ASYNC_TX_ACK: immediately ack the descriptor, precludes setting up a
  * dependency chain
  * @ASYNC_TX_DEP_ACK: ack the dependency descriptor.  Useful for chaining.
@@ -55,7 +54,6 @@ struct dma_chan_ref {
 enum async_tx_flags {
         ASYNC_TX_XOR_ZERO_DST    = (1 << 0),
         ASYNC_TX_XOR_DROP_DST    = (1 << 1),
-        ASYNC_TX_ASSUME_COHERENT = (1 << 2),
         ASYNC_TX_ACK             = (1 << 3),
         ASYNC_TX_DEP_ACK         = (1 << 4),
 };