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bh=SOFGYop7G5CT0IvbShe/iVSTs0keWEcjAd/ooP0VIE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=FRUjvaI8UZK0DqChqTkQHSOQHLIsAkK1WBKhqUbCViUNDznXWW13+m+Wv0t2Zfar4 2tgCS+aASXEOfu2mTKuWp8nRGw+pCEYCatqsLeiAHftk13ktR79nyz9u/96cj0fpGa hncLVZZ41bENBYxUDK+/UjZ2i7c0dWJRg8M5tlzgzMMelPqiKwFXXN8NhqFk94JuBL tWp9yS895Ckly9pVOinHuvasKapBoQHoxsWKexSoRmrWVChD0WMKjgfOX2BtCY3v6H D3UYt0v71VcY3LzAGANEF3XCcyOrRO15euSEUW6HOwDiGlfeW20qqgQPprS/ObT1Y/ Y/TKShU0ENTWA== 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 05/10] mm/damon/tests/core-kunit: test <=0 size damon_set_regions() inputs Date: Mon, 27 Jul 2026 22:28:04 -0700 Message-ID: <20260728052811.192712-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260728052811.192712-1-sj@kernel.org> References: <20260728052811.192712-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: egh8smq664mi5bup534pthacxmde9git X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: A3D82180008 X-Rspam-User: X-HE-Tag: 1785216498-430270 X-HE-Meta: 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 y+ZCYDL+ RsDI33AGQZLjdgmCz6ShENqwfJeZeSQ+VUl7/sZ1XN2vIOS6kI3400WeDPGb0nqEyEGWpbYt55IWOA2labmlt+cPUnLkowHnYab5wVKbc1OTepWlyuoH8+1xUiz0fvFCmln3b7iRDxqKamWcdyBgkGPaqDbVUpc9p8elB6tTDs5Nv8GYrtHm2JkoG4tszKyen9BeXIT1SucdNx/Ui1L6DR0FM+oz3KrFjLohzwhZGswP3NOlCj42SzXXrS2X9ZL3FGvFZzPt69FgEIUAqnBcQMtpe3g== 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