From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m16.yeah.net (mail-m16.yeah.net [1.95.21.14]) (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 A45504078CE for ; Thu, 17 Sep 2026 12:57:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=1.95.21.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789649843; cv=none; b=aU9+trSflkdgPHJYt+JSQKkMZ7DipTBquAgS1VInpbAvDbi0OZy8glufBYmgWirzYqyY3hZD/uEXBd8r7JRP+A5Key2mLOAlHWvYe/EZjrQuXlA/75Gt9Ky9M6fIVDB2gxu28lpNZJ7alzdHOnPCLqRiF430hoXQmMOnQVzw80s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789649843; c=relaxed/simple; bh=M2ZZ19PlWxkgQmDhKpvRmx7Qw5KFrYNlF5amEtCurM0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HIcKA64r4u3kwmA9x26YhAljSntJtRakD4kdpmhz36XG7lCHFULySaS5TfNEkDLH6dgjkQU4We9n/JSBYtkkLSnUq5UIMn6swcIbJrycOT95wE98Uv2AWczBtM+Aw2zyX/RIk5rNBd4dOpEXP2EEy3g/A7lS9z/wDhD/y/jLJIc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yeah.net; spf=pass smtp.mailfrom=yeah.net; dkim=pass (1024-bit key) header.d=yeah.net header.i=@yeah.net header.b=JAWvd3Bh; arc=none smtp.client-ip=1.95.21.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yeah.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=yeah.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=yeah.net header.i=@yeah.net header.b="JAWvd3Bh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yeah.net; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=cm TtdDTXxHY73xmx+ock/xF/s1fMYLbpV9qVemOyTWg=; b=JAWvd3Bh/dqzSYBJkZ oHjCXa+swiQZRZtU8CgAs/jFXHlDwdzEcOgGR0nUfL04zr7hb3jlaQxhLrXvyd4t +f2JPXaN+UicQ0J4e5XETofsAHYzziC1M3eyKhdp49NfYhNgjkSKS8pSdIFCiCh7 hTwWQgbKjSc6rv1ikbkGGf/tU= Received: from deepin (unknown []) by gzsmtp3 (Coremail) with UTF8SMTPA id M88vCgD3r5dQ46tqBSYYAA--.16246S2; Thu, 17 Sep 2026 20:55:45 +0800 (CST) From: Ziran Zhang To: Andy Shevchenko Cc: "Paul E . McKenney" , David Howells , Jonathan Corbet , Jordan R Abrahams-Whitehead , Marco Elver , Nilay Shroff , Edward Cree , Simona Vetter , linux-kernel@vger.kernel.org, Ziran Zhang Subject: [PATCH v2 0/2] list: add missing empty list check to list_cut_before() Date: Thu, 17 Sep 2026 20:55:03 +0800 Message-ID: <20260917125505.50897-1-zhangcoder@yeah.net> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:M88vCgD3r5dQ46tqBSYYAA--.16246S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKr1kWrWxXFWDKrykWw45ZFb_yoWxtrb_W3 40k3s5Jr1DZF4UtayIyFn3tFZ8u3y7Jrn5XF1xWry7Cr9Fkw1UAF1kGr1DJ3Z5Wr9Ygryx G34kA3Z5Xrn0yjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: x2kd0wpfrgv2o61htxgoqh3/1tbiNBGSU2qr41HrAgAA3+ v2: - Add a KUnit test case as requested by Andy Shevchenko. - Patch 1 adds the missing list_empty() guard, patch 2 adds the test case. v1: - https://lore.kernel.org/all/20260916100001.10634-1-zhangcoder@yeah.net/ Tested with: tools/testing/kunit/kunit.py run --kernel_args=kunit.filter_glob='list-kunit-test' Test result: [PASSED] list_test_list_cut_before_empty Testing complete. Ran 40 tests: passed: 40 Ziran Zhang (2): list: add missing empty list check to list_cut_before() list: add KUnit test for list_cut_before() empty list case include/linux/list.h | 5 +++++ lib/tests/list-test.c | 18 ++++++++++++++++++ 2 files changed, 23 insertions(+) -- 2.51.0