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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>
This commit is contained in:
Gilad Ben-Yossef 2020-03-08 17:57:07 +02:00 committed by Herbert Xu
parent 6429ccdd4f
commit 69cd3e16c0
1 changed files with 6 additions and 6 deletions
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12
drivers/crypto/ccree/cc_aead.c
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@ -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 */