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 E0E584B8DC3; Wed, 29 Jul 2026 14:03:05 +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=1785333787; cv=none; b=OBx9LfI83eLRZEgZJBvV1on6/d8VgOO29Kd2g/PHAxEHTzn71R/hCKJqMbQZD7uPqKKe3b2AME+2iWfcIKo1nf36FIzKFuUEa9DH6ODi93yU6enl7zciWsHRskjO908DQxpKMqJSszQEzs5ZWY/T/vtIDKCVjVrFfN2DKxda9kw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785333787; c=relaxed/simple; bh=PrDKIsNzBcOI2wImwGKxiCXSpt5whZrLxV5oplnveaM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EnEqZB8cm78GCvEAXXf3onS3e1eKjb6pR+19ExBJxfvxavU9FfV62Zw5FChD7jG7dpKy5xmQl7SaRa/CtGf8iS+5ClKVpk+X+RU85PuIfRJu3cb5WMaxwDm3GHQ9ZP5h1YtTHP3j+vtSLU/pjM5s1EM/Oq/j1vMuqI9LFH7DrxY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=D3SJ02dr; 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="D3SJ02dr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8214D1F00A3A; Wed, 29 Jul 2026 14:03:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785333785; bh=SOFGYop7G5CT0IvbShe/iVSTs0keWEcjAd/ooP0VIE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=D3SJ02droipthfU1VEMG1xJ84auTvUbx2K3kVN1erJ3EjWV42hpmN6ojM0ZLjJ708 Y40xwMtAkHekYBB9J/MBmW8Jfw3nAuSmatvTs5eVTraWv5PkN/vaFyXu3+RhRanz81 Gmfv8gMIZbSSEA1AoLENDMJqj+Hf5fFxHn0AcDuHVjOw02QRXJ5UCT4dMnFI9cKSzr vB9vVYMxfVTwi7K/rEyo2UuGwac4ps6SNXGsoZlvKEdEJC2Qyohapy1Ut6jfET+saN untQQD9KtqlRZBw9Ah4bDmKhdNZ21LcM4ZiADWA4twN30jGzMkWvnpvLguQEJhKRRJ XUZ9Ub1m9OdEg== From: SJ Park To: Cc: SJ Park , Andrew Morton , 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: [RFC PATCH v1.2 07/12] mm/damon/tests/core-kunit: test <=0 size damon_set_regions() inputs Date: Wed, 29 Jul 2026 07:02:47 -0700 Message-ID: <20260729140253.87753-8-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260729140253.87753-1-sj@kernel.org> References: <20260729140253.87753-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev 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 befc1196d6d60..ac15393a7935b 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -592,6 +592,20 @@ 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