diff mbox

dmaengine: clarify the issue_pending expectations

Message ID 1417793150-21562-1-git-send-email-vinod.koul@intel.com (mailing list archive)
State Accepted
Headers show

Commit Message

Vinod Koul Dec. 5, 2014, 3:25 p.m. UTC 
Although Documentation explicitly mentions the expectations, the comment in
header can be lead to different expectation so clear up the confusion

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 include/linux/dmaengine.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 653a1fd07ae8..40cd75e21ea2 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -447,7 +447,8 @@  struct dmaengine_unmap_data {
  * 	communicate status
  * @phys: physical address of the descriptor
  * @chan: target channel for this operation
- * @tx_submit: set the prepared descriptor(s) to be executed by the engine
+ * @tx_submit: accept the descriptor, assign ordered cookie and mark the
+ * descriptor pending. To be pushed on .issue_pending() call
  * @callback: routine to call after this operation is complete
  * @callback_param: general parameter to pass to the callback routine
  * ---async_tx api specific fields---