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crypto: skcipher - Count error stats differently

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Move all stat code specific to skcipher into the skcipher code.

While we're at it, change the stats so that bytes and counts
are always incremented even in case of error.  This allows the
reference counting to be removed as we can now increment the
counters prior to the operation.

After the operation we simply increase the error count if necessary.
This is safe as errors can only occur synchronously (or rather,
the existing code already ignored asynchronous errors which are
only visible to the callback function).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2023-02-16 18:35:21 +08:00
parent e2950bf166
commit 1085680bbb
5 changed files with 109 additions and 79 deletions
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26
crypto/algapi.c
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@@ -1073,32 +1073,6 @@ void crypto_stats_rng_generate(struct crypto_alg *alg, unsigned int dlen,
crypto_alg_put(alg);
}
EXPORT_SYMBOL_GPL(crypto_stats_rng_generate);
void crypto_stats_skcipher_encrypt(unsigned int cryptlen, int ret,
struct crypto_alg *alg)
{
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic64_inc(&alg->stats.cipher.err_cnt);
} else {
atomic64_inc(&alg->stats.cipher.encrypt_cnt);
atomic64_add(cryptlen, &alg->stats.cipher.encrypt_tlen);
}
crypto_alg_put(alg);
}
EXPORT_SYMBOL_GPL(crypto_stats_skcipher_encrypt);
void crypto_stats_skcipher_decrypt(unsigned int cryptlen, int ret,
struct crypto_alg *alg)
{
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic64_inc(&alg->stats.cipher.err_cnt);
} else {
atomic64_inc(&alg->stats.cipher.decrypt_cnt);
atomic64_add(cryptlen, &alg->stats.cipher.decrypt_tlen);
}
crypto_alg_put(alg);
}
EXPORT_SYMBOL_GPL(crypto_stats_skcipher_decrypt);
#endif
static void __init crypto_start_tests(void)