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| author | Dan Williams <dan.j.williams@intel.com> | 2008-04-17 20:17:25 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2008-04-17 13:25:05 -0700 |
| commit | 19242d7233df7d658405d4b7ee1758d21414cfaa (patch) | |
| tree | 4bffa2700c30fdb454dfa150115a0607c6cf3d2a /drivers/dma/dmaengine.c | |
| parent | 1c62979ed29a8e2bf9fbe1db101c81a0089676f8 (diff) | |
| download | linux-19242d7233df7d658405d4b7ee1758d21414cfaa.tar.gz linux-19242d7233df7d658405d4b7ee1758d21414cfaa.tar.bz2 linux-19242d7233df7d658405d4b7ee1758d21414cfaa.zip | |
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>
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 8db0e7f9d3f4..9cb898a76bb3 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -600,8 +600,6 @@ void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx, { tx->chan = chan; spin_lock_init(&tx->lock); - INIT_LIST_HEAD(&tx->depend_node); - INIT_LIST_HEAD(&tx->depend_list); } EXPORT_SYMBOL(dma_async_tx_descriptor_init); |