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| author | Corentin Labbe <clabbe@baylibre.com> | 2018-09-19 12:10:54 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-28 06:46:25 +0200 |
| commit | cac5818c25d0423bda73e2b6997404ed0a7ed9e3 (patch) | |
| tree | 3a443fa0e9a8e96799e2802552cd1f6435213569 /include/crypto/hash.h | |
| parent | crypto: skcipher - Remove SKCIPHER_REQUEST_ON_STACK() (diff) | |
| download | linux-cac5818c25d0423bda73e2b6997404ed0a7ed9e3.tar.xz linux-cac5818c25d0423bda73e2b6997404ed0a7ed9e3.zip | |
crypto: user - Implement a generic crypto statistics
This patch implement a generic way to get statistics about all crypto
usages.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/hash.h')
| -rw-r--r-- | include/crypto/hash.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h index 21587011ab0f..bc7796600338 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -412,6 +412,32 @@ static inline void *ahash_request_ctx(struct ahash_request *req) int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen); +static inline void crypto_stat_ahash_update(struct ahash_request *req, int ret) +{ +#ifdef CONFIG_CRYPTO_STATS + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + + if (ret && ret != -EINPROGRESS && ret != -EBUSY) + atomic_inc(&tfm->base.__crt_alg->hash_err_cnt); + else + atomic64_add(req->nbytes, &tfm->base.__crt_alg->hash_tlen); +#endif +} + +static inline void crypto_stat_ahash_final(struct ahash_request *req, int ret) +{ +#ifdef CONFIG_CRYPTO_STATS + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + + if (ret && ret != -EINPROGRESS && ret != -EBUSY) { + atomic_inc(&tfm->base.__crt_alg->hash_err_cnt); + } else { + atomic_inc(&tfm->base.__crt_alg->hash_cnt); + atomic64_add(req->nbytes, &tfm->base.__crt_alg->hash_tlen); + } +#endif +} + /** * crypto_ahash_finup() - update and finalize message digest * @req: reference to the ahash_request handle that holds all information @@ -526,7 +552,11 @@ static inline int crypto_ahash_init(struct ahash_request *req) */ static inline int crypto_ahash_update(struct ahash_request *req) { - return crypto_ahash_reqtfm(req)->update(req); + int ret; + + ret = crypto_ahash_reqtfm(req)->update(req); + crypto_stat_ahash_update(req, ret); + return ret; } /** |