From bd76ad4abfdccd26a9ac11214aa715e83bc8e808 Mon Sep 17 00:00:00 2001 From: Salvatore Benedetto Date: Thu, 7 Jul 2016 15:52:17 +0100 Subject: [PATCH] crypto: qat - Stop dropping leading zeros from RSA output There is not need to drop leading zeros from the RSA output operations results. Signed-off-by: Salvatore Benedetto Signed-off-by: Herbert Xu --- 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 3d56fb82f48a..0d35dca2e925 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); }