From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 26E0D38DC69; Wed, 2 Sep 2026 05:47:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788328078; cv=none; b=LV7vAqiTzMKWPOSTMQbcsrk4wQH5AvxBOBCPW/dpn3xwOozL/nveE9LCbNlZfA4lgEAxb4vMQyR7lFo2qbeQYnML6E1V427pLGPMpeio7cxxempeLU5pEHHSlem96p6+rf73ykIFwVRc9yZzf5Udccu/RUPDu6HeYsmkQgPanLw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788328078; c=relaxed/simple; bh=u+oZCoOKdySThIkJPUr4RxCiZbFXrkCX08oE+VOZRT4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X3X9CyMleJy/pQvNrrkk1B7aPJaXxuA/zX8+0coxSVuzBPOOgTawuT87tQjqujdNz8OXXRYxAJdgsFQe9lX4fhvbD1t2+iO411k7qtJ0T+hp5Bs2opAJvzEkZuWtCvU0ktht8Tt+trkwcClM8MqYEGrheaIGGYSpJi4MF5RrSdo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g/bSpy1o; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="g/bSpy1o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC6491F00A3A; Wed, 2 Sep 2026 05:47:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788328077; bh=KmA3XIkDsEGWw9Q0yqvFSyXfLgWn5kQtFO0BvVaBzPA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=g/bSpy1oP6r9W1m5m4QtCcakQBc2X9gSn8wCas9R2qnb8rZfo0TiEGsjmLT0SsUz1 Y5JhKg7MqDK+IPWptQ+GXfm7P2YCBQxEutJhb89J0+QettPXBWEAe8ICmMz/2D6ROw mCIQ/WW8hq3EPMKg7LrOqwLvcs86GZQu72nmLWV7sXxCr3I6g2t7caVI94oheqG5hi kcx3PpznSKVhwaBpYSpy/Ky35l7a1/yny/YvbvjDcxd1S+j1OqEe8gcmrEfBPPWROw dgViNOVYb1iI4882eDw2Q6RF53sfLGTEMOdhApqlbbWYFhfdTd5u0eX16kTTDAivu4 OPTlUF0FemY4Q== From: SJ Park To: Andrew Morton Cc: SJ Park , Brendan Higgins , David Gow , damon@lists.linux.dev, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 07/12] mm/damon/tests/core-kunit: test <=0 size damon_set_regions() inputs Date: Tue, 1 Sep 2026 22:47:40 -0700 Message-ID: <20260902054747.99370-8-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260902054747.99370-1-sj@kernel.org> References: <20260902054747.99370-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Commit 1292c0ecb1ca ("mm/damon/core: validate ranges in damon_set_regions()") disallowed passing zero or negative size input ranges to damon_set_regions(). Add kunit test cases for those inputs. Signed-off-by: SJ Park --- mm/damon/tests/core-kunit.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h index 2bcf3bafe2e29..3cbbbcbfbef8f 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -598,6 +598,20 @@ static void damon_test_set_regions(struct kunit *test) {.start = 25, .end = 40}, {.start = 44, .end = 50}, }, 3, 0); + /* Zero size regions should return -EINVAL. */ + damon_test_set_regions_for(test, + (struct damon_addr_range[]){}, 0, + (struct damon_addr_range[]){ + {.start = 42, .end = 42}, + }, 1, 1, + (struct damon_addr_range[]){}, 0, -EINVAL); + /* Negative size regions should return -EINVAL. */ + damon_test_set_regions_for(test, + (struct damon_addr_range[]){}, 0, + (struct damon_addr_range[]){ + {.start = 42, .end = 21}, + }, 1, 1, + (struct damon_addr_range[]){}, 0, -EINVAL); } static void damon_test_update_monitoring_result(struct kunit *test) -- 2.47.3