diff options
| author | Gilad Ben-Yossef | 2019-04-18 16:38:52 +0300 |
|---|---|---|
| committer | Herbert Xu | 2019-04-25 15:38:14 +0800 |
| commit | b7ec8530687a5b44654ee59c236579c2d890357f (patch) | |
| tree | 25918630e1d821ca70cd47085fdbd9de9892fdd9 /drivers/crypto/ccree | |
| parent | dcb2cf1d2c760bcf6390b72a9a74a3e5482ab949 (diff) | |
crypto: ccree - use std api when possible
Move to use the std api sg_nents_for_len() when we do not in fact
require the extra information about the number of bytes in the last
entry provided by the in-driver variant cc_get_sgl_nents().
This also resolves a Coverity warning cause by us not using
the output value.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccree')
| -rw-r--r-- | drivers/crypto/ccree/cc_buffer_mgr.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/crypto/ccree/cc_buffer_mgr.c b/drivers/crypto/ccree/cc_buffer_mgr.c index 7c92373df351..ccb0257bdc58 100644 --- a/drivers/crypto/ccree/cc_buffer_mgr.c +++ b/drivers/crypto/ccree/cc_buffer_mgr.c @@ -133,9 +133,9 @@ void cc_zero_sgl(struct scatterlist *sgl, u32 data_len) void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg, u32 to_skip, u32 end, enum cc_sg_cpy_direct direct) { - u32 nents, lbytes; + u32 nents; - nents = cc_get_sgl_nents(dev, sg, end, &lbytes); + nents = sg_nents_for_len(sg, end); sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip, (direct == CC_SG_TO_BUF)); } @@ -519,7 +519,6 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req) unsigned int hw_iv_size = areq_ctx->hw_iv_size; struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct cc_drvdata *drvdata = dev_get_drvdata(dev); - u32 dummy; u32 size_to_unmap = 0; if (areq_ctx->mac_buf_dma_addr) { @@ -583,15 +582,13 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req) if (areq_ctx->is_gcm4543) size_to_unmap += crypto_aead_ivsize(tfm); - dma_unmap_sg(dev, req->src, - cc_get_sgl_nents(dev, req->src, size_to_unmap, &dummy), + dma_unmap_sg(dev, req->src, sg_nents_for_len(req->src, size_to_unmap), DMA_BIDIRECTIONAL); if (req->src != req->dst) { dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n", sg_virt(req->dst)); dma_unmap_sg(dev, req->dst, - cc_get_sgl_nents(dev, req->dst, size_to_unmap, - &dummy), + sg_nents_for_len(req->dst, size_to_unmap), DMA_BIDIRECTIONAL); } if (drvdata->coherent && @@ -1429,8 +1426,7 @@ int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx, if (total_in_len < block_size) { dev_dbg(dev, " less than one block: curr_buff=%pK *curr_buff_cnt=0x%X copy_to=%pK\n", curr_buff, *curr_buff_cnt, &curr_buff[*curr_buff_cnt]); - areq_ctx->in_nents = - cc_get_sgl_nents(dev, src, nbytes, &dummy); + areq_ctx->in_nents = sg_nents_for_len(src, nbytes); sg_copy_to_buffer(src, areq_ctx->in_nents, &curr_buff[*curr_buff_cnt], nbytes); *curr_buff_cnt += nbytes; |