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 2037D38229A; Wed, 29 Jul 2026 03:38:02 +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=1785296283; cv=none; b=G0ZNUjxesNILpV8jR0kY02rHLJAJ3bUJSeg2Y43g8KCC5WAJslxGYuvKk5jLHBMA4AyIOa01MM/IaoL9YCp4wQUEvtTtlZNAWVgm6BDgakOnwG/r5fCMsPIMxixRYhS/2QiSCOnxwN+PKlARBA3MBlLwbu2eQrTgKAGYDsjawAg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785296283; c=relaxed/simple; bh=PrDKIsNzBcOI2wImwGKxiCXSpt5whZrLxV5oplnveaM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FRy6+/+/ZVN50MlcfQZN/ZQA/hPGbS2ldjgoMUWqCByebQG5jYcoZGvL0uvBzkNwltxa0D6UGhW1Bdj4cpkd0g9PjM2BK7I3Kgql6UK2cNPGt1DEIvnqaqT7d9Z+PacWggiewQgzShEemHq7GwghmQRUAtXnRajUlMEJA0CPFyI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=C5pDGgIN; 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="C5pDGgIN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B530E1F000E9; Wed, 29 Jul 2026 03:38:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785296282; bh=SOFGYop7G5CT0IvbShe/iVSTs0keWEcjAd/ooP0VIE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=C5pDGgIN1BNBNCCrOVAQdq3u/aP8trwRWE/SzIzIZ5pKpA40eYss4h0obNSblP7rL ceXTtPz5LIMJwEZzsvFB7t0oVinV3pyHVEYcF7EelyWCwzqt9fIzAtZYp+LkCtPTg6 ePMoKBLO3qAHwznxKmBDAlOq5+E4alGg+ZU+aGGWDQfstk6cD6AKi3hyc78UbxTj/t Vs95TksPCk67EK23TzkhQeHbCoi0FyRF3cJt2GASVAG2Nkljpfh9DeNrFDpzVEV3Qx wGSRm+ixDkj4PLYtEr3+Fc7/7EBzOhmGU64W1fymptEsfLOoINXX6nwTFME7eyCEg9 o71crohI4CzfA== 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 v1.1 05/10] mm/damon/tests/core-kunit: test <=0 size damon_set_regions() inputs Date: Tue, 28 Jul 2026 20:37:45 -0700 Message-ID: <20260729033751.131213-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260729033751.131213-1-sj@kernel.org> References: <20260729033751.131213-1-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 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