From: LABBE Corentin Subject: [PATCH v2 7/8] crypto: qce: replace qce_countsg with sg_nents_len_chained Date: Fri, 18 Sep 2015 14:57:15 +0200 Message-ID: <1442581036-23789-8-git-send-email-clabbe.montjoie@gmail.com> References: <1442581036-23789-1-git-send-email-clabbe.montjoie@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org To: herbert@gondor.apana.org.au, davem@davemloft.net, axboe@fb.com, clabbe.montjoie@gmail.com, cristian.stoica@freescale.com, dan.j.williams@intel.com Return-path: In-Reply-To: <1442581036-23789-1-git-send-email-clabbe.montjoie@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org The qce driver use a modified version of sg_nents_for_len called qce_countsg. This function is now availlable in lib/scatterlist.c Replace qce_countsg by sg_nents_len_chained Signed-off-by: LABBE Corentin --- drivers/crypto/qce/ablkcipher.c | 8 ++++---- drivers/crypto/qce/dma.c | 19 ------------------- drivers/crypto/qce/dma.h | 1 - drivers/crypto/qce/sha.c | 4 ++-- 4 files changed, 6 insertions(+), 26 deletions(-) diff --git a/drivers/crypto/qce/ablkcipher.c b/drivers/crypto/qce/ablkcipher.c index ad592de..215bbd2 100644 --- a/drivers/crypto/qce/ablkcipher.c +++ b/drivers/crypto/qce/ablkcipher.c @@ -80,11 +80,11 @@ qce_ablkcipher_async_req_handle(struct crypto_async_request *async_req) dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL; dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL; - rctx->src_nents = qce_countsg(req->src, req->nbytes, - &rctx->src_chained); + rctx->src_nents = sg_nents_len_chained(req->src, req->nbytes, + &rctx->src_chained); if (diff_dst) { - rctx->dst_nents = qce_countsg(req->dst, req->nbytes, - &rctx->dst_chained); + rctx->dst_nents = sg_nents_len_chained(req->dst, req->nbytes, + &rctx->dst_chained); } else { rctx->dst_nents = rctx->src_nents; rctx->dst_chained = rctx->src_chained; diff --git a/drivers/crypto/qce/dma.c b/drivers/crypto/qce/dma.c index 378cb76..c18aaca 100644 --- a/drivers/crypto/qce/dma.c +++ b/drivers/crypto/qce/dma.c @@ -87,25 +87,6 @@ void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents, dma_unmap_sg(dev, sg, nents, dir); } -int qce_countsg(struct scatterlist *sglist, int nbytes, bool *chained) -{ - struct scatterlist *sg = sglist; - int nents = 0; - - if (chained) - *chained = false; - - while (nbytes > 0 && sg) { - nents++; - nbytes -= sg->length; - if (!sg_is_last(sg) && (sg + 1)->length == 0 && chained) - *chained = true; - sg = sg_next(sg); - } - - return nents; -} - struct scatterlist * qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl) { diff --git a/drivers/crypto/qce/dma.h b/drivers/crypto/qce/dma.h index 65bedb8..4653e2d8 100644 --- a/drivers/crypto/qce/dma.h +++ b/drivers/crypto/qce/dma.h @@ -49,7 +49,6 @@ int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *sg_in, dma_async_tx_callback cb, void *cb_param); void qce_dma_issue_pending(struct qce_dma_data *dma); int qce_dma_terminate_all(struct qce_dma_data *dma); -int qce_countsg(struct scatterlist *sg_list, int nbytes, bool *chained); void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, bool chained); int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents, diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c index be2f504..69c9495 100644 --- a/drivers/crypto/qce/sha.c +++ b/drivers/crypto/qce/sha.c @@ -92,8 +92,8 @@ static int qce_ahash_async_req_handle(struct crypto_async_request *async_req) rctx->authklen = AES_KEYSIZE_128; } - rctx->src_nents = qce_countsg(req->src, req->nbytes, - &rctx->src_chained); + rctx->src_nents = sg_nents_len_chained(req->src, req->nbytes, + &rctx->src_chained); ret = qce_mapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE, rctx->src_chained); if (ret < 0) -- 2.4.6