tree 4bffa2700c30fdb454dfa150115a0607c6cf3d2a
parent 1c62979ed29a8e2bf9fbe1db101c81a0089676f8
author Dan Williams <dan.j.williams@intel.com> 1208488645 -0700
committer Dan Williams <dan.j.williams@intel.com> 1208463905 -0700

async_tx: fix multiple dependency submission

Shrink struct dma_async_tx_descriptor and introduce
async_tx_channel_switch to properly inject a channel switch interrupt in
the descriptor stream.  This simplifies the locking model as drivers no
longer need to handle dma_async_tx_descriptor.lock.

Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>