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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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8
crypto/api.c
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@@ -31,8 +31,10 @@ EXPORT_SYMBOL_GPL(crypto_alg_sem);
BLOCKING_NOTIFIER_HEAD(crypto_chain);
EXPORT_SYMBOL_GPL(crypto_chain);
DEFINE_STATIC_KEY_FALSE(crypto_boot_test_finished);
EXPORT_SYMBOL_GPL(crypto_boot_test_finished);
#ifndef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
DEFINE_STATIC_KEY_FALSE(__crypto_boot_test_finished);
EXPORT_SYMBOL_GPL(__crypto_boot_test_finished);
#endif
static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg);
@@ -202,7 +204,7 @@ static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg)
struct crypto_larval *larval = (void *)alg;
long timeout;
if (!static_branch_likely(&crypto_boot_test_finished))
if (!crypto_boot_test_finished())
crypto_start_test(larval);
timeout = wait_for_completion_killable_timeout(