From patchwork Fri Feb 25 02:52:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gow X-Patchwork-Id: 12759562 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2591FC433EF for ; Fri, 25 Feb 2022 02:53:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236865AbiBYCyX (ORCPT ); Thu, 24 Feb 2022 21:54:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236856AbiBYCyX (ORCPT ); Thu, 24 Feb 2022 21:54:23 -0500 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BB27278CB1 for ; Thu, 24 Feb 2022 18:53:52 -0800 (PST) Received: by mail-pj1-x104a.google.com with SMTP id j10-20020a17090a7e8a00b001bbef243093so4708766pjl.1 for ; Thu, 24 Feb 2022 18:53:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=V1rQ4nquNp18jfgzfW9vZ+glyyMNehUDY2htsrduhLY=; b=BZmWVijfvQImtZ6KfmIcvMhyC1etJR7CWjsko9mlIe0tq5RLpWAsjNcMKR8wyzqXJR nYTEMgzfFeB9SJ3lQjC9u7f+7tBAVYHLsAdLY8Mb4qEJLDV0iXBhpws9Mqq5LEHWyRWb K6KUA5ClL5grlHnjFsu44kuWjMedffDqmxIh52krhWg2RqIL+/4wpKXmwhVFfProTrHY xNoJANmXL4yJ/MkDTXTCrgGhiHpwbpEwtCiCa/WlIZgRVopwIzgfPgFPacQch7tyMgLj S4KuD69r+6hpk4LOtKFSbzLBDV59eKDCfuVGZdmgA5maLkIfBry6mSulKZYFYN/x5NHs /8IA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=V1rQ4nquNp18jfgzfW9vZ+glyyMNehUDY2htsrduhLY=; b=OUTOkbUN2dD7FDksKpH9DKLHKBFfSwjo9Jcq+0e6cMzSByWVHFtCmgjssN1ehkeNpK g2UOR4/MHgX8ltPENiV7PzWIuIP6jiIP2Cop7VfSkXzWYktKSowTHdSJLX5t/7IFL/k6 MDafW+qkcsPp68AnegyFABhIIiHTQuwGfDdS46f7nXNC1tpqkGMJqhF+AwwoAo2sQFyB GV1T5f5aRUqC1TKkknF5WVDncweSIz3s2O6Awk1t/hSlykxR8rs5L/dKZWj4EI1YjCnH PF+7S0ySpX7fdKqMD1dxBYJ9e2a6ZXpuZQCv5YMr1dGj9g7emcmqnr7zkyozqXE30Tip l4Iw== X-Gm-Message-State: AOAM530XGYeiFcWQpEY9cpe8Tt6CgLRfr8a7QWrA8sRxbqSJ4saV5yvB qB0MzVQ7kxTv4SKALt3XHknNGBJWOJ0l/Q== X-Google-Smtp-Source: ABdhPJyET4zKPHUz257ncAUxuaxKKi7dMHrY4HWUqKL5zPsnxifIleo7FNHDaCAiF1dwtX2n/rX/AdH+KX3BTQ== X-Received: from slicestar.c.googlers.com ([fda3:e722:ac3:cc00:4f:4b78:c0a8:20a1]) (user=davidgow job=sendgmr) by 2002:a17:90a:6001:b0:1bb:83e8:1694 with SMTP id y1-20020a17090a600100b001bb83e81694mr1078322pji.127.1645757632007; Thu, 24 Feb 2022 18:53:52 -0800 (PST) Date: Fri, 25 Feb 2022 10:52:49 +0800 In-Reply-To: <20220225025247.1888244-1-davidgow@google.com> Message-Id: <20220225025247.1888244-3-davidgow@google.com> Mime-Version: 1.0 References: <20220225025247.1888244-1-davidgow@google.com> X-Mailer: git-send-email 2.35.1.574.g5d30c73bfb-goog Subject: [PATCH v4 3/3] list: test: Add a test for list_entry_is_head() From: David Gow To: Shuah Khan , Andy Shevchenko , Linus Torvalds , Brendan Higgins Cc: David Gow , Daniel Latypov , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The list_entry_is_head() macro was added[1] after the list KUnit tests, so wasn't tested. Add a new KUnit test to complete the set. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e130816164e244b692921de49771eeb28205152d Signed-off-by: David Gow Acked-by: Daniel Latypov Acked-by: Brendan Higgins Reviewed-by: Andy Shevchenko --- Changes since v3: https://lore.kernel.org/lkml/20220209052813.854014-3-davidgow@google.com/ - Add Reviewed-by tags. Changes since v2: https://lore.kernel.org/linux-kselftest/20220208040122.695258-3-davidgow@google.com/ - Use the _MSG variants of the assert macros, as suggested by Daniel Latypov. Changes since v1: https://lore.kernel.org/linux-kselftest/20220205061539.273330-3-davidgow@google.com/ - Rework the test entirely to better match the improved list_is_head() test. --- lib/list-test.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/lib/list-test.c b/lib/list-test.c index 3870ebfd84aa..035ef6597640 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -549,6 +549,26 @@ static void list_test_list_entry(struct kunit *test) struct list_test_struct, list)); } +static void list_test_list_entry_is_head(struct kunit *test) +{ + struct list_test_struct test_struct1, test_struct2, test_struct3; + + INIT_LIST_HEAD(&test_struct1.list); + INIT_LIST_HEAD(&test_struct3.list); + + list_add_tail(&test_struct2.list, &test_struct1.list); + + KUNIT_EXPECT_TRUE_MSG(test, + list_entry_is_head((&test_struct1), &test_struct1.list, list), + "Head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, + list_entry_is_head((&test_struct2), &test_struct1.list, list), + "Non-head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, + list_entry_is_head((&test_struct3), &test_struct1.list, list), + "Head element of different list"); +} + static void list_test_list_first_entry(struct kunit *test) { struct list_test_struct test_struct1, test_struct2; @@ -764,6 +784,7 @@ static struct kunit_case list_test_cases[] = { KUNIT_CASE(list_test_list_splice_init), KUNIT_CASE(list_test_list_splice_tail_init), KUNIT_CASE(list_test_list_entry), + KUNIT_CASE(list_test_list_entry_is_head), KUNIT_CASE(list_test_list_first_entry), KUNIT_CASE(list_test_list_last_entry), KUNIT_CASE(list_test_list_first_entry_or_null),