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    Subject[PATCH 1/4 v6] dmaengine: add async_tx_clear_ack() macro
    From: Guennadi Liakhovetski <lg@denx.de>

    To complete the DMA_CTRL_ACK handling API add a async_tx_clear_ack() macro.

    Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
    ---

    No change since v2

    include/linux/dmaengine.h | 5 +++++
    1 files changed, 5 insertions(+), 0 deletions(-)

    diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
    index 64dea2a..c820a3f 100644
    --- a/include/linux/dmaengine.h
    +++ b/include/linux/dmaengine.h
    @@ -287,6 +287,11 @@ static inline void async_tx_ack(struct dma_async_tx_descriptor *tx)
    tx->flags |= DMA_CTRL_ACK;
    }

    +static inline void async_tx_clear_ack(struct dma_async_tx_descriptor *tx)
    +{
    + tx->flags &= ~DMA_CTRL_ACK;
    +}
    +
    static inline bool async_tx_test_ack(struct dma_async_tx_descriptor *tx)
    {
    return (tx->flags & DMA_CTRL_ACK) == DMA_CTRL_ACK;
    --
    1.5.4


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