linux-kernel - [PATCH] lib/crypto: tests: polyval_kunit: Increase iterations for preparekey in IRQs

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Message-Id: <20260102-kunit-polyval-fix-v1-1-5313b5a65f35@linutronix.de>
Date: Fri, 02 Jan 2026 08:32:03 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Eric Biggers <ebiggers@...nel.org>, 
 "Jason A. Donenfeld" <Jason@...c4.com>, Ard Biesheuvel <ardb@...nel.org>
Cc: linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH] lib/crypto: tests: polyval_kunit: Increase iterations for
 preparekey in IRQs

On my development machine the generic, memcpy()-only implementation of
polyval_preparekey() is too fast for the IRQ workers to actually fire.
The test fails.

Increase the iterations to make the test more robust.
The test will run for a maximum of one second in any case.

Fixes: b3aed551b3fc ("lib/crypto: tests: Add KUnit tests for POLYVAL")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 lib/crypto/tests/polyval_kunit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/crypto/tests/polyval_kunit.c b/lib/crypto/tests/polyval_kunit.c
index e59f598c1572..f47f41a39a41 100644
--- a/lib/crypto/tests/polyval_kunit.c
+++ b/lib/crypto/tests/polyval_kunit.c
@@ -183,7 +183,7 @@ static void test_polyval_preparekey_in_irqs(struct kunit *test)

 	rand_bytes(state.raw_key, sizeof(state.raw_key));
 	polyval_preparekey(&state.expected_key, state.raw_key);
-	kunit_run_irq_test(test, polyval_irq_test_func, 20000, &state);
+	kunit_run_irq_test(test, polyval_irq_test_func, 200000, &state);
 }

 static int polyval_suite_init(struct kunit_suite *suite)

---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251230-kunit-polyval-fix-cd018aaabef1

Best regards,
-- 
Thomas Weißschuh <thomas.weissschuh@...utronix.de>