dmaengine: nbpfaxi: convert callback to helper function

This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c
index 08c45c185549..09de71519d37 100644
--- a/drivers/dma/nbpfaxi.c
+++ b/drivers/dma/nbpfaxi.c
@@ -1102,8 +1102,7 @@ static void nbpf_chan_tasklet(unsigned long data)
 {
         struct nbpf_channel *chan = (struct nbpf_channel *)data;
         struct nbpf_desc *desc, *tmp;
-        dma_async_tx_callback callback;
-        void *param;
+        struct dmaengine_desc_callback cb;
 
         while (!list_empty(&chan->done)) {
                 bool found = false, must_put, recycling = false;
@@ -1151,14 +1150,12 @@ static void nbpf_chan_tasklet(unsigned long data)
                         must_put = false;
                 }
 
-                callback = desc->async_tx.callback;
-                param = desc->async_tx.callback_param;
+                dmaengine_desc_get_callback(&desc->async_tx, &cb);
 
                 /* ack and callback completed descriptor */
                 spin_unlock_irq(&chan->lock);
 
-                if (callback)
-                        callback(param);
+                dmaengine_desc_callback_invoke(&cb, NULL);
 
                 if (must_put)
                         nbpf_desc_put(desc);