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
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