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| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2020-03-08 16:57:07 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-03-12 13:00:16 +0100 |
| commit | 69cd3e16c0d6f7dfe92c969a43221a802ee549ae (patch) | |
| tree | 2fa5feb6dc48b61346ac13e8427136d03f08fef1 /drivers/crypto/ccree/cc_aead.c | |
| parent | crypto: ccree - remove ancient TODO remarks (diff) | |
| download | linux-69cd3e16c0d6f7dfe92c969a43221a802ee549ae.tar.xz linux-69cd3e16c0d6f7dfe92c969a43221a802ee549ae.zip | |
crypto: ccree - only check condition if needed
Move testing of condition to after the point we decide if
we need it or not.
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/cc_aead.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_aead.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c index 1c5d927d632c..cce103e3b822 100644 --- a/drivers/crypto/ccree/cc_aead.c +++ b/drivers/crypto/ccree/cc_aead.c @@ -1800,12 +1800,6 @@ static int cc_gcm(struct aead_request *req, struct cc_hw_desc desc[], struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int cipher_flow_mode; - if (req_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) { - cipher_flow_mode = AES_and_HASH; - } else { /* Encrypt */ - cipher_flow_mode = AES_to_HASH_and_DOUT; - } - //in RFC4543 no data to encrypt. just copy data from src to dest. if (req_ctx->plaintext_authenticate_only) { cc_proc_cipher_desc(req, BYPASS, desc, seq_size); @@ -1817,6 +1811,12 @@ static int cc_gcm(struct aead_request *req, struct cc_hw_desc desc[], return 0; } + if (req_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) { + cipher_flow_mode = AES_and_HASH; + } else { /* Encrypt */ + cipher_flow_mode = AES_to_HASH_and_DOUT; + } + // for gcm and rfc4106. cc_set_ghash_desc(req, desc, seq_size); /* process(ghash) assoc data */ |