async_tx: kill ->device_dependency_added

DMA drivers no longer need to be notified of dependency submission
events as async_tx_run_dependencies and async_tx_channel_switch will
handle the scheduling and execution of dependent operations.

[sfr@canb.auug.org.au: extend this for fsldma]
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 9cb898a..af6911a 100644 (file)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -362,7 +362,6 @@ int dma_async_device_register(struct dma_device *device)
 
        BUG_ON(!device->device_alloc_chan_resources);
        BUG_ON(!device->device_free_chan_resources);
-       BUG_ON(!device->device_dependency_added);
        BUG_ON(!device->device_is_tx_complete);
        BUG_ON(!device->device_issue_pending);
        BUG_ON(!device->dev);

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index d8ae18d..95b36b7 100644 (file)
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -658,13 +658,6 @@ static void fsl_dma_memcpy_issue_pending(struct dma_chan *chan)
        fsl_chan_xfer_ld_queue(fsl_chan);
 }
 
-static void fsl_dma_dependency_added(struct dma_chan *chan)
-{
-       struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan);
-
-       fsl_chan_ld_cleanup(fsl_chan);
-}
-
 /**
  * fsl_dma_is_complete - Determine the DMA status
  * @fsl_chan : Freescale DMA channel
@@ -1089,7 +1082,6 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
        fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy;
        fdev->common.device_is_tx_complete = fsl_dma_is_complete;
        fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending;
-       fdev->common.device_dependency_added = fsl_dma_dependency_added;
        fdev->common.dev = &dev->dev;
 
        irq = irq_of_parse_and_map(dev->node, 0);

diff --cc drivers/dma/ioat_dma.c
Simple merge

diff --cc drivers/dma/iop-adma.c
Simple merge

diff --cc include/linux/dmaengine.h
Simple merge