On Thu, Jul 30, 2015 at 05:41:07PM +0530, Rameshwar Prasad Sahu wrote: > + nents = sg_nents(req->src); > + sg_count = dma_map_sg(dev, req->src, nents, DMA_TO_DEVICE); > + if (!sg_count) { > + dev_err(dev, "Failed to map src sg"); > + return -ENOMEM; mapping error shouldn't be no mem error > + } > + > + if (sg_count > XGENE_DMA_MAX_FLYBY_SRC_CNT) { > + dev_err(dev, "Unsupported src sg len\n"); would be worth printing length > + goto err; > + } > + > + flags = DMA_CTRL_ACK; why ACK? > + > + tx = dchan->device->device_prep_dma_crc32c(dchan, req->src, > + req->nbytes, > + reqctx->seed, > + req->result, > + flags); We should add helper for this -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html