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    Subject[PATCH 3.17 039/146] dmaengine: fix xor sources continuation
    Date
    3.17-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Xuelin Shi <xuelin.shi@freescale.com>

    commit 87cea76384257e6ac3fa4791b6a6b9d0335f7457 upstream.

    the partial xor result must be kept until the next
    tx is generated.

    Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
    Signed-off-by: Dan Williams <dan.j.williams@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    crypto/async_tx/async_xor.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    --- a/crypto/async_tx/async_xor.c
    +++ b/crypto/async_tx/async_xor.c
    @@ -78,8 +78,6 @@ do_async_xor(struct dma_chan *chan, stru
    tx = dma->device_prep_dma_xor(chan, dma_dest, src_list,
    xor_src_cnt, unmap->len,
    dma_flags);
    - src_list[0] = tmp;
    -

    if (unlikely(!tx))
    async_tx_quiesce(&submit->depend_tx);
    @@ -92,6 +90,7 @@ do_async_xor(struct dma_chan *chan, stru
    xor_src_cnt, unmap->len,
    dma_flags);
    }
    + src_list[0] = tmp;

    dma_set_unmap(tx, unmap);
    async_tx_submit(chan, tx, submit);



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