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

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Message-ID: <20260102182748.GB2294@sol>
Date: Fri, 2 Jan 2026 10:27:48 -0800
From: Eric Biggers <ebiggers@...nel.org>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>,
	Ard Biesheuvel <ardb@...nel.org>, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] lib/crypto: tests: polyval_kunit: Increase iterations
 for preparekey in IRQs

On Fri, Jan 02, 2026 at 08:32:03AM +0100, Thomas Weißschuh wrote:
> 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>

Glad to see that people are running these tests!  I actually already
applied
https://lore.kernel.org/linux-crypto/20251219085259.1163048-1-davidgow@google.com/
for this issue, which should be sufficient by itself.  Might be worth
increasing the iteration count as well, but I'd like to check whether
any other tests could use a similar change as well.

- Eric