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crypto: api - compile out crypto_boot_test_finished when tests disabled

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The crypto_boot_test_finished static key is unnecessary when self-tests
are disabled in the kconfig, so optimize it out accordingly, along with
the entirety of crypto_start_tests().  This mainly avoids the overhead
of an unnecessary static_branch_enable() on every boot.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2022-11-13 16:12:35 -08:00
committed by Herbert Xu
parent 9cadd73ade
commit 06bd9c967e
3 changed files with 29 additions and 6 deletions
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7
crypto/algapi.c
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@@ -454,7 +454,7 @@ int crypto_register_alg(struct crypto_alg *alg)
down_write(&crypto_alg_sem);
larval = __crypto_register_alg(alg, &algs_to_put);
if (!IS_ERR_OR_NULL(larval)) {
test_started = static_key_enabled(&crypto_boot_test_finished);
test_started = crypto_boot_test_finished();
larval->test_started = test_started;
}
up_write(&crypto_alg_sem);
@@ -1253,6 +1253,9 @@ EXPORT_SYMBOL_GPL(crypto_stats_skcipher_decrypt);
static void __init crypto_start_tests(void)
{
if (IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS))
return;
for (;;) {
struct crypto_larval *larval = NULL;
struct crypto_alg *q;
@@ -1286,7 +1289,7 @@ static void __init crypto_start_tests(void)
crypto_wait_for_test(larval);
}
static_branch_enable(&crypto_boot_test_finished);
set_crypto_boot_test_finished();
}
static int __init crypto_algapi_init(void)