From patchwork Tue Apr 5 07:25:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 557468 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 C08DCC3527A for ; Tue, 5 Apr 2022 09:52:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243155AbiDEJjE (ORCPT ); Tue, 5 Apr 2022 05:39:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244455AbiDEJJ7 (ORCPT ); Tue, 5 Apr 2022 05:09:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 00531255BA; Tue, 5 Apr 2022 01:59:23 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7AAC6614E4; Tue, 5 Apr 2022 08:59:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 850DAC385B3; Tue, 5 Apr 2022 08:59:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649149160; bh=KkqvdNudypKbbtIijKOGeT0cNlIeNDr+yKjHsjcNilc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hc8ARRFLolOsNf2veBfQruC/r4k1z8oP9Rii9hzmBLNTEz5SyjJHwO1rrmVVvXgqb 6liwPf6iUHO/D4yrCuV3Vn6ZLKMJ/Pwccef9OSvyND1n7cWI3dapAfkHGf0ogQHA9V ou9DOUEnrAL9ngJyOhojFsElj7Vx8sAnIZV5POow= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jakub Sitnicki , Daniel Borkmann , Martin KaFai Lau , Sasha Levin Subject: [PATCH 5.16 0616/1017] selftests/bpf: Fix error reporting from sock_fields programs Date: Tue, 5 Apr 2022 09:25:29 +0200 Message-Id: <20220405070412.567745590@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jakub Sitnicki [ Upstream commit a4c9fe0ed4a13e25e43fcd44d9f89bc19ba8fbb7 ] The helper macro that records an error in BPF programs that exercise sock fields access has been inadvertently broken by adaptation work that happened in commit b18c1f0aa477 ("bpf: selftest: Adapt sock_fields test to use skel and global variables"). BPF_NOEXIST flag cannot be used to update BPF_MAP_TYPE_ARRAY. The operation always fails with -EEXIST, which in turn means the error never gets recorded, and the checks for errors always pass. Revert the change in update flags. Fixes: b18c1f0aa477 ("bpf: selftest: Adapt sock_fields test to use skel and global variables") Signed-off-by: Jakub Sitnicki Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20220317113920.1068535-2-jakub@cloudflare.com Signed-off-by: Sasha Levin --- tools/testing/selftests/bpf/progs/test_sock_fields.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/test_sock_fields.c b/tools/testing/selftests/bpf/progs/test_sock_fields.c index 81b57b9aaaea..7967348b11af 100644 --- a/tools/testing/selftests/bpf/progs/test_sock_fields.c +++ b/tools/testing/selftests/bpf/progs/test_sock_fields.c @@ -113,7 +113,7 @@ static void tpcpy(struct bpf_tcp_sock *dst, #define RET_LOG() ({ \ linum = __LINE__; \ - bpf_map_update_elem(&linum_map, &linum_idx, &linum, BPF_NOEXIST); \ + bpf_map_update_elem(&linum_map, &linum_idx, &linum, BPF_ANY); \ return CG_OK; \ })