async_tx: fix multiple dependency submission

[linux-2.6-omap-h63xx.git] / include / linux / dmaengine.h

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 34d440698293e6ea20f8d3763e42b04126a7980d..91252a7e4d037577faea898c50d33a99e9580319 100644 (file)
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -221,11 +221,9 @@ typedef void (*dma_async_tx_callback)(void *dma_async_param);
  * @callback: routine to call after this operation is complete
  * @callback_param: general parameter to pass to the callback routine
  * ---async_tx api specific fields---
- * @depend_list: at completion this list of transactions are submitted
- * @depend_node: allow this transaction to be executed after another
- *     transaction has completed, possibly on another channel
+ * @next: at completion submit this descriptor
  * @parent: pointer to the next level up in the dependency chain
- * @lock: protect the dependency list
+ * @lock: protect the parent and next pointers
  */
 struct dma_async_tx_descriptor {
        dma_cookie_t cookie;
@@ -236,8 +234,7 @@ struct dma_async_tx_descriptor {
        dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
        dma_async_tx_callback callback;
        void *callback_param;
-       struct list_head depend_list;
-       struct list_head depend_node;
+       struct dma_async_tx_descriptor *next;
        struct dma_async_tx_descriptor *parent;
        spinlock_t lock;
 };