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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67BFFCCA487 for ; Tue, 5 Jul 2022 12:31:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237269AbiGEMbG (ORCPT ); Tue, 5 Jul 2022 08:31:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237745AbiGEMZx (ORCPT ); Tue, 5 Jul 2022 08:25:53 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D6E626E; Tue, 5 Jul 2022 05:18:20 -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 0CB0E619A6; Tue, 5 Jul 2022 12:18:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A718C341C7; Tue, 5 Jul 2022 12:18:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1657023499; bh=xgkfMj/ziNqkWgpfYcZR3Nfsmb5KIJGi8ArqSi3+8n8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CwPYWrEagk1gSMS1IqBKflApXtFKuZdINkacYmuBbDSgCrXWOAOucFDwI2CiAZ2VG lPi+aeMc549Oy+h+wRFhTqWEU4ZorJbNPlMmt21FuGb5X3FmiOyofPWF2VuxRPbIh6 teNzrG0mAH9dkrJrHPNtqgJhTtiDN8zSUwi5q3P0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Paolo Abeni , Mat Martineau , Jakub Kicinski Subject: [PATCH 5.18 041/102] selftests: mptcp: Initialize variables to quiet gcc 12 warnings Date: Tue, 5 Jul 2022 13:58:07 +0200 Message-Id: <20220705115619.577318866@linuxfoundation.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220705115618.410217782@linuxfoundation.org> References: <20220705115618.410217782@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mat Martineau commit fd37c2ecb21f7aee04ccca5f561469f07d00063c upstream. In a few MPTCP selftest tools, gcc 12 complains that the 'sock' variable might be used uninitialized. This is a false positive because the only code path that could lead to uninitialized access is where getaddrinfo() fails, but the local xgetaddrinfo() wrapper exits if such a failure occurs. Initialize the 'sock' variable anyway to allow the tools to build with gcc 12. Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp") Acked-by: Paolo Abeni Signed-off-by: Mat Martineau Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/net/mptcp/mptcp_connect.c | 2 +- tools/testing/selftests/net/mptcp/mptcp_inq.c | 2 +- tools/testing/selftests/net/mptcp/mptcp_sockopt.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -265,7 +265,7 @@ static void sock_test_tcpulp(int sock, i static int sock_listen_mptcp(const char * const listenaddr, const char * const port) { - int sock; + int sock = -1; struct addrinfo hints = { .ai_protocol = IPPROTO_TCP, .ai_socktype = SOCK_STREAM, --- a/tools/testing/selftests/net/mptcp/mptcp_inq.c +++ b/tools/testing/selftests/net/mptcp/mptcp_inq.c @@ -88,7 +88,7 @@ static void xgetaddrinfo(const char *nod static int sock_listen_mptcp(const char * const listenaddr, const char * const port) { - int sock; + int sock = -1; struct addrinfo hints = { .ai_protocol = IPPROTO_TCP, .ai_socktype = SOCK_STREAM, --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -136,7 +136,7 @@ static void xgetaddrinfo(const char *nod static int sock_listen_mptcp(const char * const listenaddr, const char * const port) { - int sock; + int sock = -1; struct addrinfo hints = { .ai_protocol = IPPROTO_TCP, .ai_socktype = SOCK_STREAM,