From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m16.yeah.net (mail-m16.yeah.net [220.197.32.19]) (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 9562B3C3F76 for ; Fri, 18 Sep 2026 08:12:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.32.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789719136; cv=none; b=BwBAZD0ZlKH4lGSXkI1e81QTBLZzwc4FmrnIaOOwreeWhLWdkGNo4e5cHYwBLxU2znl6umCxGIKq9DiET5DvZ09pwbWxl2lChHgXm0yJIUJVzU+/Ef9cVFelvCRq5uLffBw+3jDxZAb8CQWg2Wnw6SbzSVUww1fpF7WG2Wh1jvw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789719136; c=relaxed/simple; bh=hvh7Fm/j3aBL/wBpwy/HKc/4RjZNtLWRXqjw4OYPCZQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=SWnpylDxnQCp4kFl12Deg6MhUM8OfiDx/RbTrxfttjIM0ii+UTxnGm+6dE7dzjcySnyOzS557L4GHcM7KHp1kJVs9gSAqeQaqqb81sqtJFTnMx4NxpvqRvp5QCYIiZMwKjoVtng9qwws2WA2LJji7XJrLfveFi6hJNFQM22GOdk= 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=l71f0IUv; arc=none smtp.client-ip=220.197.32.19 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="l71f0IUv" 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=HG O/EJNlhwEgKvNl0pFOLbWwNg/SsXvmoRzHr86FwAY=; b=l71f0IUvljqiMCHUmS KwagzAd8hxC6oQ4U0PAyrIgib+dEnViQY6kbVoiQzx8dJ9xwiiVv8+DTT1tAxUBp 6QvgU02HvI6UknPHHnFW9Q+kCC/xzNaC0yAGRUKPx9GZ5Rd7WYSca23nlmYO1SLA F4VUskhHcbtQ1t/arAk+N66VQ= Received: from deepin (unknown []) by gzsmtp3 (Coremail) with UTF8SMTPA id M88vCgD3P5cQ8qxqHkUlAA--.61508S2; Fri, 18 Sep 2026 16:10:57 +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 v3 0/2] list: add missing empty list check to list_cut_before() Date: Fri, 18 Sep 2026 16:10:24 +0800 Message-ID: <20260918081026.8050-1-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:M88vCgD3P5cQ8qxqHkUlAA--.61508S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7Gr4DKr4DGFWUWr18Cr48Zwb_yoW3KFg_W3 40k3s5Cr4kZa1UtayxJF9ayFZ5uay7Xrn5ZF1xWr13Cry29w1UGFykCrnxX3Z5Wr9YqFyx W34kA3Z5ZrnYvjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: x2kd0wpfrgv2o61htxgoqh3/1tbiNBGGR2qs8hES+gAA3p v3: - Elaborate the rationale in the commit message, as requested by Andy Shevchenko. - Add Reviewed-by from Andy Shevchenko to patch 2/2. 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