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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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: B3B43180002 X-Stat-Signature: ddhyti5ry4u68qai7k9hn5potzfrjdxt X-HE-Tag: 1785296282-540696 X-HE-Meta: U2FsdGVkX199EFrVyFAI+LVlLbujhOYNj7Ku6++mx4IlLptiWjUSG6jByupULK0E5Wu2GgmCKGYEKWlsWDTCTBAglr+UG+hrGjKrbD3im79GNoTwFO4kx5n1if5r1eovP5Xtr3RkPXzbl4KLh0S8ROdvPhnCHu3RBp/jFegwGyK8EHZEaOsToPJRepSpf/vsZRPL4BlkbtcF1fbrkIe/ajXd3WdzqVo3jSd4hdeW0uqQXsRBwoH0i+TqsvgtlX9o05Afdjpg5sAfT32cdKsgWzwGPMo5d8JvbmBPx+ng6u7OG6f3man3cLS+gegLOxuDgVFhWbKbZ1/YO3zcNTE1f/DsejiEcaXyR569/8MuaXIFssDzv2sdUoHqv5GADUUNxiO407m75N2euPrsX8Cs3RlN6OFI9d0slKoo2oIga519F4WlW9d/oJUX783/0fmPI19oKZjb6YX/70tFWj9wk8UQMEQGk7EsFAZr+F7pjVTlm8+r3vSQ4xNf1hpSk5Dzz3c6YAyHYuxHJ4F9tKfHt+LdOt17S7UqdLIR5gZZ+q2e5y6Bkcs6S/7z+/AWkEtD66rL9ZtwujwwarViRD5mHUvAGXHBViVN/IZpX2XI69ykxAjk/kysz8YB+bOdFsqczxEoh1pODNkuh19IRsTyGX2KyJvw0JVD8jup91E16X0aycqUc0nClXY9VDyTvSklVorWAN1uqcqEL2BkKUC2SEWBR31DL+N9v84tr+Q0OT4O2TOVvu7jaq7BlgaPUXceM8aHViuhAw5vlqnVyHdGbxbEyLaFsdyKvRMqCGOtqF/b9Nlor4VF7yyy+MDbS1Mgnu7xocPcEFjWSwnp4M2GBRibk4R+tRDzj7PP/qCvJ9Ht7Nhgeb2XfljbDo9WA7lAKZd0vZoIKdet6q4hWimWnkZfFscXYxjp0CAhAFk6PZYFshYJ+Ia54ivjKu3X0DaWQmffRUPfoNCFeoB9fSh GW0wc2Fn k6AAMX3GQOBYrSswO86XJcmseDbIcns9lzeMfJZNwxQ2m5D64QbfBo08RDAB2oqMQyNiN6LaQSIyq2M3YSUCbgg5PQoebgB4IX4tZx0TdeIavGTNaQ5rOEkItjo93MitvU9FTFK4HTggh4bpDSROt5QHeaMuSzPewln5SUlV0KvKe2fNzNQ7QfRwA+TuuczKABURPiHWuSuxRYO4XoaVGlGyx8uLYhKRd09zUgEqu8lOWvKHlDvX6LJC2bSd6v7aNcer8XFkvkL9Bm1JXp1dP3ma0nQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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