diff options
| author |   Gilad Ben-Yossef <gilad@benyossef.com> | 2018-07-24 15:12:44 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2018-08-03 18:06:05 +0800 |
| commit | f5c19df90ae7fc21d3dcf50af9d6b456aa6b3351 (patch) | |
| tree | 0c133d85a528eb412f67af2912e38ee89c9ee343 /drivers/crypto | |
| parent | crypto: ccree - drop useless type flag during reg (diff) | |
| download | linux-dev-f5c19df90ae7fc21d3dcf50af9d6b456aa6b3351.tar.xz linux-dev-f5c19df90ae7fc21d3dcf50af9d6b456aa6b3351.zip | |
crypto: ccree - remove cipher ivgen left overs
IV generation is not available via the skcipher interface.
Remove the left over support of it from the ablkcipher days.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/ccree/cc_buffer_mgr.c | 8 | ||||
| -rw-r--r-- | drivers/crypto/ccree/cc_cipher.c | 11 | ||||
| -rw-r--r-- | drivers/crypto/ccree/cc_cipher.h | 1 |
3 files changed, 2 insertions, 18 deletions
diff --git a/drivers/crypto/ccree/cc_buffer_mgr.c b/drivers/crypto/ccree/cc_buffer_mgr.c index b32577477b4c..dd948e1df9e5 100644 --- a/drivers/crypto/ccree/cc_buffer_mgr.c +++ b/drivers/crypto/ccree/cc_buffer_mgr.c @@ -454,9 +454,7 @@ void cc_unmap_cipher_request(struct device *dev, void *ctx, dev_dbg(dev, "Unmapped iv: iv_dma_addr=%pad iv_size=%u\n", &req_ctx->gen_ctx.iv_dma_addr, ivsize); dma_unmap_single(dev, req_ctx->gen_ctx.iv_dma_addr, - ivsize, - req_ctx->is_giv ? DMA_BIDIRECTIONAL : - DMA_TO_DEVICE); + ivsize, DMA_TO_DEVICE); } /* Release pool */ if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI && @@ -498,9 +496,7 @@ int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, dump_byte_array("iv", (u8 *)info, ivsize); req_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, (void *)info, - ivsize, - req_ctx->is_giv ? DMA_BIDIRECTIONAL : - DMA_TO_DEVICE); + ivsize, DMA_TO_DEVICE); if (dma_mapping_error(dev, req_ctx->gen_ctx.iv_dma_addr)) { dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n", ivsize, info); diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c index eb99633570b5..64740dd6f5f1 100644 --- a/drivers/crypto/ccree/cc_cipher.c +++ b/drivers/crypto/ccree/cc_cipher.c @@ -743,14 +743,6 @@ static int cc_cipher_process(struct skcipher_request *req, cc_setup_cipher_data(tfm, req_ctx, dst, src, nbytes, req, desc, &seq_len); - /* do we need to generate IV? */ - if (req_ctx->is_giv) { - cc_req.ivgen_dma_addr[0] = req_ctx->gen_ctx.iv_dma_addr; - cc_req.ivgen_dma_addr_len = 1; - /* set the IV size (8/16 B long)*/ - cc_req.ivgen_size = ivsize; - } - /* STAT_PHASE_3: Lock HW and push sequence */ rc = cc_send_request(ctx_p->drvdata, &cc_req, desc, seq_len, @@ -775,7 +767,6 @@ static int cc_cipher_encrypt(struct skcipher_request *req) { struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req); - req_ctx->is_giv = false; req_ctx->backup_info = NULL; return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); @@ -807,8 +798,6 @@ static int cc_cipher_decrypt(struct skcipher_request *req) req_ctx->backup_info = NULL; } - req_ctx->is_giv = false; - return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); } diff --git a/drivers/crypto/ccree/cc_cipher.h b/drivers/crypto/ccree/cc_cipher.h index 68444cfa936b..4dbc0a1e6d5c 100644 --- a/drivers/crypto/ccree/cc_cipher.h +++ b/drivers/crypto/ccree/cc_cipher.h @@ -22,7 +22,6 @@ struct cipher_req_ctx { u32 out_mlli_nents; u8 *backup_info; /*store iv for generated IV flow*/ u8 *iv; - bool is_giv; struct mlli_params mlli_params; }; |