crypto: aead - un-inline encrypt and decrypt functions
crypto_aead_encrypt() and crypto_aead_decrypt() have grown to be more
than a single indirect function call. They now also check whether a key
has been set, the decryption side checks whether the input is at least
as long as the authentication tag length, and with CONFIG_CRYPTO_STATS=y
they also update the crypto statistics. That can add up to a lot of
bloat at every call site. Moreover, these always involve a function
call anyway, which greatly limits the benefits of inlining.
So change them to be non-inline.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/aead.c b/crypto/aead.c
index 4908b5e8..fc1d7ad 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -89,6 +89,42 @@ int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
}
EXPORT_SYMBOL_GPL(crypto_aead_setauthsize);
+int crypto_aead_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct crypto_alg *alg = aead->base.__crt_alg;
+ unsigned int cryptlen = req->cryptlen;
+ int ret;
+
+ crypto_stats_get(alg);
+ if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
+ ret = -ENOKEY;
+ else
+ ret = crypto_aead_alg(aead)->encrypt(req);
+ crypto_stats_aead_encrypt(cryptlen, alg, ret);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_aead_encrypt);
+
+int crypto_aead_decrypt(struct aead_request *req)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct crypto_alg *alg = aead->base.__crt_alg;
+ unsigned int cryptlen = req->cryptlen;
+ int ret;
+
+ crypto_stats_get(alg);
+ if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
+ ret = -ENOKEY;
+ else if (req->cryptlen < crypto_aead_authsize(aead))
+ ret = -EINVAL;
+ else
+ ret = crypto_aead_alg(aead)->decrypt(req);
+ crypto_stats_aead_decrypt(cryptlen, alg, ret);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_aead_decrypt);
+
static void crypto_aead_exit_tfm(struct crypto_tfm *tfm)
{
struct crypto_aead *aead = __crypto_aead_cast(tfm);
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 9ad595f..020d581 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -322,21 +322,7 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
*
* Return: 0 if the cipher operation was successful; < 0 if an error occurred
*/
-static inline int crypto_aead_encrypt(struct aead_request *req)
-{
- struct crypto_aead *aead = crypto_aead_reqtfm(req);
- struct crypto_alg *alg = aead->base.__crt_alg;
- unsigned int cryptlen = req->cryptlen;
- int ret;
-
- crypto_stats_get(alg);
- if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else
- ret = crypto_aead_alg(aead)->encrypt(req);
- crypto_stats_aead_encrypt(cryptlen, alg, ret);
- return ret;
-}
+int crypto_aead_encrypt(struct aead_request *req);
/**
* crypto_aead_decrypt() - decrypt ciphertext
@@ -360,23 +346,7 @@ static inline int crypto_aead_encrypt(struct aead_request *req)
* integrity of the ciphertext or the associated data was violated);
* < 0 if an error occurred.
*/
-static inline int crypto_aead_decrypt(struct aead_request *req)
-{
- struct crypto_aead *aead = crypto_aead_reqtfm(req);
- struct crypto_alg *alg = aead->base.__crt_alg;
- unsigned int cryptlen = req->cryptlen;
- int ret;
-
- crypto_stats_get(alg);
- if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else if (req->cryptlen < crypto_aead_authsize(aead))
- ret = -EINVAL;
- else
- ret = crypto_aead_alg(aead)->decrypt(req);
- crypto_stats_aead_decrypt(cryptlen, alg, ret);
- return ret;
-}
+int crypto_aead_decrypt(struct aead_request *req);
/**
* DOC: Asynchronous AEAD Request Handle
