diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-06-02 22:45:51 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-06-13 14:31:40 +0800 |
| commit | 81bcbb1ee75d44f270a2905ea09c8a5861cf0086 (patch) | |
| tree | b13f81e5da5f4f2eee5e2f3bb0c10e91ca9be6fe /crypto/skcipher.c | |
| parent | f2fe1154542e69976f859e573dc4d9aa0b76a495 (diff) | |
| download | linux-rt-81bcbb1ee75d44f270a2905ea09c8a5861cf0086.tar.gz | |
crypto: skcipher - un-inline encrypt and decrypt functions
crypto_skcipher_encrypt() and crypto_skcipher_decrypt() have grown to be
more than a single indirect function call. They now also check whether
a key has been set, 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>
Diffstat (limited to 'crypto/skcipher.c')
| -rw-r--r-- | crypto/skcipher.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/crypto/skcipher.c b/crypto/skcipher.c index 2e66f312e2c4..2828e27d7fbc 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -842,6 +842,40 @@ static int skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, return 0; } +int crypto_skcipher_encrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_alg *alg = tfm->base.__crt_alg; + unsigned int cryptlen = req->cryptlen; + int ret; + + crypto_stats_get(alg); + if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) + ret = -ENOKEY; + else + ret = tfm->encrypt(req); + crypto_stats_skcipher_encrypt(cryptlen, ret, alg); + return ret; +} +EXPORT_SYMBOL_GPL(crypto_skcipher_encrypt); + +int crypto_skcipher_decrypt(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct crypto_alg *alg = tfm->base.__crt_alg; + unsigned int cryptlen = req->cryptlen; + int ret; + + crypto_stats_get(alg); + if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) + ret = -ENOKEY; + else + ret = tfm->decrypt(req); + crypto_stats_skcipher_decrypt(cryptlen, ret, alg); + return ret; +} +EXPORT_SYMBOL_GPL(crypto_skcipher_decrypt); + static void crypto_skcipher_exit_tfm(struct crypto_tfm *tfm) { struct crypto_skcipher *skcipher = __crypto_skcipher_cast(tfm); |