From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A14952561AC; Tue, 22 Apr 2025 21:07:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745356065; cv=none; b=bVFzR/N2cu/BwCfjexo909L1Tu/JoV+A8OmvFEAegvFBUegC/euOaHfCHVHhIGlyhfD9l5scEQetAMRe2ZGnbBVsGb+sX+MzWLTKWavxAfrLbLAsBplYZS2p7FGfKXG+AWlM4cTlELqJZJ7Q8eWXSXaMmWtQxoFNWhRZ+TK9BAE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745356065; c=relaxed/simple; bh=9JSlKwjDOZWbObZH/GEonA6F4eOl4NiGxW9Zajz1h8o=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=a/bB+L062eWOPHiwiZ1k0hYs3pl7WxYSLsfxfc1rFLYHrxf5N1fbRBErs7MjgYyoecywjqe5wPTT6GHHAsiPqcNsFQvq23QQbhbHErDF0YOxK3wIngUt4YRJmM2MEldefZI/gq4GsYf3KdvAUndMBT1h73zjoC5BO5oNSriA/z8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=U/N8gWSM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="U/N8gWSM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7D3B7C4CEE9; Tue, 22 Apr 2025 21:07:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745356065; bh=9JSlKwjDOZWbObZH/GEonA6F4eOl4NiGxW9Zajz1h8o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=U/N8gWSM3DNP6z4j6+0fsmMKv8+7IxNVWZ7aiQXxC8UopH08GW1Ia/DGGjCQsD4We 8/OQYWd5fY6VYTRZ8GV6lCDx6fDdkOZ1RGtSS1N1zKsFiKF/iJ93MMDli8gWJSQh9L g3ubutNwMzrddEmkhucvYhX48jvGIGpCDOzEL1KJM3ol252hSbiWmF9NUoOiNSC8Rd 3cR7qfMq65znnQfZ8QfHGiNW/ynuHi3oQYGw9KukXffbmO5wq6k02hXCAhqr6scaly cSdc8m4izQ/yE024qiL9CNqSBaqVALgKa47PQdKeg+v2iIznL+Qf9jv3HiBh2Z5NHW 3L04gku7pwL3g== Date: Tue, 22 Apr 2025 15:07:41 -0600 From: "Gustavo A. R. Silva" To: Kees Cook , "Gustavo A. R. Silva" Cc: linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2][next] kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper Message-ID: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Add a couple of tests for new STACK_FLEX_ARRAY_SIZE() helper. Signed-off-by: Gustavo A. R. Silva --- Changes v2: - Add 0 test for `empty` instance. v1: - Link: https://lore.kernel.org/linux-hardening/8cf48c3f9d8ef9b999d87cc0a822ffe539bf7a64.1745342381.git.gustavoars@kernel.org/ lib/tests/overflow_kunit.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/tests/overflow_kunit.c b/lib/tests/overflow_kunit.c index 894691b4411a..19cb03b25dc5 100644 --- a/lib/tests/overflow_kunit.c +++ b/lib/tests/overflow_kunit.c @@ -1210,6 +1210,10 @@ static void DEFINE_FLEX_test(struct kunit *test) KUNIT_EXPECT_EQ(test, __struct_size(empty->array), 0); KUNIT_EXPECT_EQ(test, __member_size(empty->array), 0); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(two, array), 2); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(eight, array), 8); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(empty, array), 0); + /* If __counted_by is not being used, array size will have the on-stack size. */ if (!IS_ENABLED(CONFIG_CC_HAS_COUNTED_BY)) array_size_override = 2 * sizeof(s16); -- 2.43.0