diff options
| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2020-02-11 19:19:05 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2020-02-22 09:25:44 +0800 |
| commit | e431cc04381708660b321f6c5a5500ea577a903e (patch) | |
| tree | 08df89de02b650289843979becd1c73861faa950 /drivers/crypto/ccree | |
| parent | crypto: ccree - use existing helpers to split 64-bit addresses (diff) | |
| download | linux-dev-e431cc04381708660b321f6c5a5500ea577a903e.tar.xz linux-dev-e431cc04381708660b321f6c5a5500ea577a903e.zip | |
crypto: ccree - defer larval_digest_addr init until needed
While the larval digest addresses are not always used in
cc_get_plain_hmac_key() and cc_hash_digest(), they are always
calculated.
Defer their calculations to the points where needed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccree')
| -rw-r--r-- | drivers/crypto/ccree/cc_aead.c | 4 | ||||
| -rw-r--r-- | drivers/crypto/ccree/cc_hash.c | 5 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c index db89144ce6c5..d1e7e82b9a40 100644 --- a/drivers/crypto/ccree/cc_aead.c +++ b/drivers/crypto/ccree/cc_aead.c @@ -417,7 +417,7 @@ static int cc_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *authkey, dma_addr_t key_dma_addr = 0; struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - u32 larval_addr = cc_larval_digest_addr(ctx->drvdata, ctx->auth_mode); + u32 larval_addr; struct cc_crypto_req cc_req = {}; unsigned int blocksize; unsigned int digestsize; @@ -459,6 +459,8 @@ static int cc_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *authkey, /* Load hash initial state */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], hashmode); + larval_addr = cc_larval_digest_addr(ctx->drvdata, + ctx->auth_mode); set_din_sram(&desc[idx], larval_addr, digestsize); set_flow_mode(&desc[idx], S_DIN_to_HASH); set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c index defeb35a16a6..cebbe2f08f60 100644 --- a/drivers/crypto/ccree/cc_hash.c +++ b/drivers/crypto/ccree/cc_hash.c @@ -429,8 +429,7 @@ static int cc_hash_digest(struct ahash_request *req) bool is_hmac = ctx->is_hmac; struct cc_crypto_req cc_req = {}; struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; - cc_sram_addr_t larval_digest_addr = - cc_larval_digest_addr(ctx->drvdata, ctx->hash_mode); + cc_sram_addr_t larval_digest_addr; int idx = 0; int rc = 0; gfp_t flags = cc_gfp_flags(&req->base); @@ -472,6 +471,8 @@ static int cc_hash_digest(struct ahash_request *req) set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT); } else { + larval_digest_addr = cc_larval_digest_addr(ctx->drvdata, + ctx->hash_mode); set_din_sram(&desc[idx], larval_digest_addr, ctx->inter_digestsize); } |