From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE68AC32771 for ; Fri, 24 Jan 2020 11:37:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C4638206D4 for ; Fri, 24 Jan 2020 11:37:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="aGYdZJEs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391970AbgAXLhy (ORCPT ); Fri, 24 Jan 2020 06:37:54 -0500 Received: from mail-wm1-f66.google.com ([209.85.128.66]:37390 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404136AbgAXL37 (ORCPT ); Fri, 24 Jan 2020 06:29:59 -0500 Received: by mail-wm1-f66.google.com with SMTP id f129so1375677wmf.2 for ; Fri, 24 Jan 2020 03:29:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=cJ4TZV5cXZ/8q9QBQvb7gjQiJz0uB/MAQITB1sj0NIA=; b=aGYdZJEshwF1cDJSP1sWdrNLBZhS7I1RyF6A+y71axz3sMiUBhYP2IE6Kd9mNUgg5W IECZ+kHefZaSIFM+5Bg2JehMCd3qN0v0qS3ULjoDIz6rpsX8FxCiZGK6BXNJbtHF3X4T sv57upHc3Gx34c2KFseWNntiHUPIsA2RuSJ9A= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cJ4TZV5cXZ/8q9QBQvb7gjQiJz0uB/MAQITB1sj0NIA=; b=UGwCvdSb5wSpvMnfgEvvqFS4Y4hXBTT+bmtlGCUk8Jxeo3JTU86k4kWqyikAQEK0fa pcDX54C8loweVkFJgnFAa9U1LwmFlSQh6n1cOKtYWluP+VGz6E8L30KhGmAS7QUWUTz+ aoEaEf14dBm5pbkHy+oo7L/csLYfacHmWgFB2K5qbGEJ6ylHE7ICtZStlm0eFCsXKv9d ypZKGDUa+4YoZlzznwzGMjJWXqNqcfbp99cSOKptJ/R+6sb539rZKxkQqoclWKmGHSou yd1GwlRZU3ohiQM6+idiZuoZR3lZ8i7xhal4tID9CxU9eJBEFL67mDSnhHh6hrfvMieL 4aTg== X-Gm-Message-State: APjAAAXAHnPo6+ih7ZzJioKVuKZBOWZXZfRNvBpAjCMJepprQG+lKV9+ 6cR6yZM2hmZss/EIC4ZbHDKYzA== X-Google-Smtp-Source: APXvYqxsibd4gK6MTr1ppba1secKSIQp1ayf0Ni0amvJDL4rkRNpwnjnQZ1jK6nkDlO+g5yIu8e9hQ== X-Received: by 2002:a7b:c450:: with SMTP id l16mr2846104wmi.166.1579865397394; Fri, 24 Jan 2020 03:29:57 -0800 (PST) Received: from antares.lan (3.a.c.b.c.e.9.a.8.e.c.d.e.4.1.6.f.f.6.2.a.5.a.7.0.b.8.0.1.0.0.2.ip6.arpa. [2001:8b0:7a5a:26ff:614e:dce8:a9ec:bca3]) by smtp.gmail.com with ESMTPSA id n189sm6808688wme.33.2020.01.24.03.29.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jan 2020 03:29:56 -0800 (PST) From: Lorenz Bauer To: Shuah Khan , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko Cc: Lorenz Bauer , linux-kselftest@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next v2 4/4] selftests: bpf: reset global state between reuseport test runs Date: Fri, 24 Jan 2020 11:27:54 +0000 Message-Id: <20200124112754.19664-5-lmb@cloudflare.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200124112754.19664-1-lmb@cloudflare.com> References: <20200123165934.9584-1-lmb@cloudflare.com> <20200124112754.19664-1-lmb@cloudflare.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Currently, there is a lot of false positives if a single reuseport test fails. This is because expected_results and the result map are not cleared. Zero both after individual test runs, which fixes the mentioned false positives. Signed-off-by: Lorenz Bauer Fixes: 91134d849a0e ("bpf: Test BPF_PROG_TYPE_SK_REUSEPORT") --- .../selftests/bpf/prog_tests/select_reuseport.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c index e7e56929751c..098bcae5f827 100644 --- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c +++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c @@ -33,7 +33,7 @@ #define REUSEPORT_ARRAY_SIZE 32 static int result_map, tmp_index_ovr_map, linum_map, data_check_map; -static enum result expected_results[NR_RESULTS]; +static __u32 expected_results[NR_RESULTS]; static int sk_fds[REUSEPORT_ARRAY_SIZE]; static int reuseport_array = -1, outer_map = -1; static int select_by_skb_data_prog; @@ -697,7 +697,19 @@ static void setup_per_test(int type, sa_family_t family, bool inany, static void cleanup_per_test(bool no_inner_map) { - int i, err; + int i, err, zero = 0; + + memset(expected_results, 0, sizeof(expected_results)); + + for (i = 0; i < NR_RESULTS; i++) { + err = bpf_map_update_elem(result_map, &i, &zero, BPF_ANY); + RET_IF(err, "reset elem in result_map", + "i:%u err:%d errno:%d\n", i, err, errno); + } + + err = bpf_map_update_elem(linum_map, &zero, &zero, BPF_ANY); + RET_IF(err, "reset line number in linum_map", "err:%d errno:%d\n", + err, errno); for (i = 0; i < REUSEPORT_ARRAY_SIZE; i++) close(sk_fds[i]); -- 2.20.1