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    Subject[PATCH 10/29] ioat: fix self test interrupts
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    If a callback is to be attached to a descriptor the channel needs to
    know at ->prep time so it can set the interrupt enable bit. This is in
    preparation for moving descriptor ioat2 descriptor preparation from
    ->submit to ->prep.

    Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
    Signed-off-by: Dan Williams <dan.j.williams@intel.com>
    ---
    drivers/dma/ioat/dma.c | 3 ++-
    1 files changed, 2 insertions(+), 1 deletions(-)

    diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
    index c4333be..cc5c557 100644
    --- a/drivers/dma/ioat/dma.c
    +++ b/drivers/dma/ioat/dma.c
    @@ -1313,7 +1313,8 @@ static int ioat_dma_self_test(struct ioatdma_device *device)

    dma_src = dma_map_single(dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE);
    dma_dest = dma_map_single(dev, dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE);
    - flags = DMA_COMPL_SRC_UNMAP_SINGLE | DMA_COMPL_DEST_UNMAP_SINGLE;
    + flags = DMA_COMPL_SRC_UNMAP_SINGLE | DMA_COMPL_DEST_UNMAP_SINGLE |
    + DMA_PREP_INTERRUPT;
    tx = device->common.device_prep_dma_memcpy(dma_chan, dma_dest, dma_src,
    IOAT_TEST_SIZE, flags);
    if (!tx) {


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