From patchwork Thu Jan 14 07:07:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Miroslav Rezanina X-Patchwork-Id: 12018711 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=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 8F661C433E0 for ; Thu, 14 Jan 2021 07:09:04 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DEEBE2396F for ; Thu, 14 Jan 2021 07:09:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DEEBE2396F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41372 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzwkg-0001Om-QU for qemu-devel@archiver.kernel.org; Thu, 14 Jan 2021 02:09:02 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49996) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzwjV-0008RU-1c for qemu-devel@nongnu.org; Thu, 14 Jan 2021 02:07:49 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:48977) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kzwjQ-00043r-Ps for qemu-devel@nongnu.org; Thu, 14 Jan 2021 02:07:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1610608063; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=nAZxhJwDUYHs5Yh1LJgvGVq+wXgRTzPPSKqjg87TAVc=; b=P4K+uqvRyiSsrudaqlzh5eNUWIEpViCDoAcExpbeGxiqsnn3eJVehCxkLXh4qjqlYKAyzk R8DlkivlopoCI1jEGGZrY8mbMrThHI+l3WqZjHrtsoebt6mTb7qhi1+0r75NNQvRACckXl wAHcZRMcHL11iSGlfAkwrr3qxNpWnZg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-108-C5KD4rBMORqke-RtILWr0g-1; Thu, 14 Jan 2021 02:07:41 -0500 X-MC-Unique: C5KD4rBMORqke-RtILWr0g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 249F3814266 for ; Thu, 14 Jan 2021 07:07:40 +0000 (UTC) Received: from workimage2020.rezanina.moe.rezanina.moe (unknown [10.40.195.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6FD5A1F434 for ; Thu, 14 Jan 2021 07:07:39 +0000 (UTC) From: Miroslav Rezanina To: qemu-devel@nongnu.org Subject: [PATCH v3 1/2] Fix net.c warning on GCC 11 Date: Thu, 14 Jan 2021 08:07:35 +0100 Message-Id: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mrezanin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=mrezanin@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When building qemu with GCC 11, compiling eth.c file produce following warning: warning: array subscript 'struct ip6_ext_hdr_routing[0]' is partly outside array bounds of 'struct ip6_ext_hdr[1]' [-Warray-bounds] This is caused by retyping from ip6_ext_hdr to ip6_ext_hdr_routing that has more attributes. As this usage is expected, suppress the warning temporarily through the function using this retyping. Signed-off-by: Miroslav Rezanina Nacked-by: Philippe Mathieu-Daudé --- net/eth.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/eth.c b/net/eth.c index 1e0821c5f8..b9bdd0435c 100644 --- a/net/eth.c +++ b/net/eth.c @@ -405,6 +405,8 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int pkt_frags, struct ip6_ext_hdr *ext_hdr, struct in6_address *dst_addr) { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Warray-bounds" struct ip6_ext_hdr_routing *rthdr = (struct ip6_ext_hdr_routing *) ext_hdr; if ((rthdr->rtype == 2) && @@ -426,6 +428,7 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int pkt_frags, } return false; +#pragma GCC diagnostic pop } static bool