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authorEric Biggers <ebiggers@google.com>2019-06-02 22:45:51 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2019-06-13 14:31:40 +0800
commit81bcbb1ee75d44f270a2905ea09c8a5861cf0086 (patch)
treeb13f81e5da5f4f2eee5e2f3bb0c10e91ca9be6fe /crypto/skcipher.c
parentf2fe1154542e69976f859e573dc4d9aa0b76a495 (diff)
downloadlinux-81bcbb1ee75d44f270a2905ea09c8a5861cf0086.tar.bz2
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.c34
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);