dmaengine_desc_get_callback
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(&adtx->tx, &cb);
dmaengine_desc_get_callback(tx, &cb);
dmaengine_desc_get_callback(txd, &cb);
dmaengine_desc_get_callback(&desc->txd, &cb);
dmaengine_desc_get_callback(tx, &cb);
dmaengine_desc_get_callback(tx, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(txd, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(txd, &cb);
dmaengine_desc_get_callback(&desc->txd, &cb);
dmaengine_desc_get_callback(&async_desc->vd.tx, &cb);
dmaengine_desc_get_callback(desc, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(tx, &cb);
dmaengine_desc_get_callback(&d40d->txd, &cb);
dmaengine_desc_get_callback(&dma_desc->txd, &cb);
dmaengine_desc_get_callback(&vd->tx, &cb);
dmaengine_desc_get_callback(&vd->tx, &cb);
dmaengine_desc_get_callback(txd, &cb);
dmaengine_desc_get_callback(txd, &cb);
dmaengine_desc_get_callback(&vd->tx, &cb);
dmaengine_desc_get_callback(&vd->tx, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);
dmaengine_desc_get_callback(&desc->async_tx, &cb);