drivers/crypto/omap-sham.c

725 			       struct omap_sham_reqctx *rctx)
732 	int offset = rctx->offset;
733 	int bufcnt = rctx->bufcnt;
738 			sg_init_table(rctx->sgl, 1);
739 			sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, bufcnt);
740 			rctx->sg = rctx->sgl;
741 			rctx->sg_len = 1;
822 		return omap_sham_copy_sgs(rctx, sg, bs, new_len);
824 		return omap_sham_copy_sg_lists(rctx, sg, bs, new_len);
826 	rctx->total = new_len;
827 	rctx->offset += new_len;
828 	rctx->sg_len = n;
829 	if (rctx->bufcnt) {
830 		sg_init_table(rctx->sgl, 2);
831 		sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, rctx->bufcnt);
832 		sg_chain(rctx->sgl, 2, sg);
833 		rctx->sg = rctx->sgl;
835 		rctx->sg = sg;
845 	struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
849 	bool final = rctx->flags & BIT(FLAGS_FINUP);
850 	bool update = rctx->op == OP_UPDATE;
853 	bs = get_block_size(rctx);
855 	nbytes = rctx->bufcnt;
858 		nbytes += req->nbytes - rctx->offset;
860 	dev_dbg(rctx->dd->dev,
862 		__func__, nbytes, bs, rctx->total, rctx->offset,
863 		rctx->bufcnt);
868 	rctx->total = nbytes;
870 	if (update && req->nbytes && (!IS_ALIGNED(rctx->bufcnt, bs))) {
871 		int len = bs - rctx->bufcnt % bs;
875 		scatterwalk_map_and_copy(rctx->buffer + rctx->bufcnt, req->src,
877 		rctx->bufcnt += len;
878 		rctx->offset = len;
881 	if (rctx->bufcnt)
882 		memcpy(rctx->dd->xmit_buf, rctx->buffer, rctx->bufcnt);
884 	ret = omap_sham_align_sgs(req->src, nbytes, bs, final, rctx);
888 	hash_later = nbytes - rctx->total;
892 	if (hash_later && hash_later <= rctx->buflen) {
893 		scatterwalk_map_and_copy(rctx->buffer,
898 		rctx->bufcnt = hash_later;
900 		rctx->bufcnt = 0;
903 	if (hash_later > rctx->buflen)
904 		set_bit(FLAGS_HUGE, &rctx->dd->flags);
906 	rctx->total = min(nbytes, rctx->total);
1404 	struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
1406 	memcpy(out, rctx, sizeof(*rctx) + rctx->bufcnt);
1413 	struct omap_sham_reqctx *rctx = ahash_request_ctx(req);
1416 	memcpy(rctx, in, sizeof(*rctx) + ctx_in->bufcnt);