From 19242d7233df7d658405d4b7ee1758d21414cfaa Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 17 Apr 2008 20:17:25 -0700 Subject: 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 Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/dma/dmaengine.c') 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); -- cgit v1.2.3