From: Salvatore Benedetto Subject: [PATCH] crypto: qat - Stop dropping leading zeros from RSA output Date: Thu, 7 Jul 2016 15:52:17 +0100 Message-ID: <1467903137-2110-1-git-send-email-salvatore.benedetto@intel.com> Cc: salvatore.benedetto@intel.com, linux-crypto@vger.kernel.org To: herbert@gondor.apana.org.au Return-path: Received: from mga03.intel.com ([134.134.136.65]:20469 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752060AbcGGOwX (ORCPT ); Thu, 7 Jul 2016 10:52:23 -0400 Sender: linux-crypto-owner@vger.kernel.org List-ID: There is not need to drop leading zeros from the RSA output operations results. Signed-off-by: Salvatore Benedetto --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 3d56fb8..0d35dca 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -571,32 +571,12 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp) areq->dst_len = req->ctx.rsa->key_sz; if (req->dst_align) { - char *ptr = req->dst_align; - - while (!(*ptr) && areq->dst_len) { - areq->dst_len--; - ptr++; - } - - if (areq->dst_len != req->ctx.rsa->key_sz) - memmove(req->dst_align, ptr, areq->dst_len); - scatterwalk_map_and_copy(req->dst_align, areq->dst, 0, areq->dst_len, 1); dma_free_coherent(dev, req->ctx.rsa->key_sz, req->dst_align, req->out.rsa.enc.c); } else { - char *ptr = sg_virt(areq->dst); - - while (!(*ptr) && areq->dst_len) { - areq->dst_len--; - ptr++; - } - - if (sg_virt(areq->dst) != ptr && areq->dst_len) - memmove(sg_virt(areq->dst), ptr, areq->dst_len); - dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz, DMA_FROM_DEVICE); } -- 2.7.4