Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a88f6667 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Dan Williams
Browse files

dmaengine: clarify the meaning of the DMA_CTRL_ACK flag 



DMA_CTRL_ACK's description applies to its clear state, not to its set state.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 86d61b33

include/linux/dmaengine.h

+1 −1
Original line number Diff line number Diff line
@@ -74,7 +74,7 @@ enum dma_transaction_type { 
 *  control completion, and communicate status.

 * @DMA_PREP_INTERRUPT - trigger an interrupt (callback) upon completion of

 *  this transaction

 * @DMA_CTRL_ACK - the descriptor cannot be reused until the client

 * @DMA_CTRL_ACK - if clear, the descriptor cannot be reused until the client

 *  acknowledges receipt, i.e. has has a chance to establish any dependency

 *  chains

 * @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s)