From nobody Mon Feb 9 08:12:01 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1557497017; cv=none; d=zoho.com; s=zohoarc; b=e6IOCsOyq46MIO+FARGuzGf1JWA3Q2Zkma3JacsGUyFFukiEJHJrTHgfsfL3gaN3TsSufpgLcLUqPHlaNMyRvuGnC0xQGdijoYOTWqzhAFedCmceMDBwHYfeFcw/3nLRhpHVxPE1itclXjkNwLmItzAKFgvuhRnv1epwxB6bzWA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1557497017; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=52P/wDQZRtkXTJzPhfHEAhuwOO2EXJWZ3WCHYndprnc=; b=iZ199DrqYOjkuuVUTn4jF8G9OXyuWc4t9P+mm5JhA81kDxzgdRRjL9UHDb6r3YCaHH/PaQ015XW12rgqGjg9kCnlPgxg2NjCS43ltGS8b63BBEj1G9A8wfJHojfxp2Dhoh5+BBDP/QIzjMbaKsnfj5czBTD2Cm8VpjlE21mHdUI= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1557497017765878.7241680165276; Fri, 10 May 2019 07:03:37 -0700 (PDT) Received: from localhost ([127.0.0.1]:43903 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP67X-0000Rh-L1 for importer@patchew.org; Fri, 10 May 2019 10:03:31 -0400 Received: from eggs.gnu.org ([209.51.188.92]:40419) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP65G-00075m-PS for qemu-devel@nongnu.org; Fri, 10 May 2019 10:01:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hP65F-00020P-OV for qemu-devel@nongnu.org; Fri, 10 May 2019 10:01:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59274) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hP65F-0001zx-EQ for qemu-devel@nongnu.org; Fri, 10 May 2019 10:01:09 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C2995309E9B2 for ; Fri, 10 May 2019 14:01:08 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-117-74.ams2.redhat.com [10.36.117.74]) by smtp.corp.redhat.com (Postfix) with ESMTP id F059F1001E78; Fri, 10 May 2019 14:01:03 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 3250EA1E4; Fri, 10 May 2019 16:01:03 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Fri, 10 May 2019 16:00:56 +0200 Message-Id: <20190510140103.3834-2-kraxel@redhat.com> In-Reply-To: <20190510140103.3834-1-kraxel@redhat.com> References: <20190510140103.3834-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Fri, 10 May 2019 14:01:08 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 1/8] libvhost-user: fix -Waddress-of-packed-member X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Marc-Andr=C3=A9 Lureau /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function = =E2=80=98vu_set_mem_table_exec_postcopy=E2=80=99: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:546:31: warnin= g: taking address of packed member of =E2=80=98struct VhostUserMsg=E2=80=99= may result in an unaligned pointer value [-Waddress-of-packed-member] 546 | VhostUserMemory *memory =3D &vmsg->payload.memory; | ^~~~~~~~~~~~~~~~~~~~~ /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function = =E2=80=98vu_set_mem_table_exec=E2=80=99: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:688:31: warnin= g: taking address of packed member of =E2=80=98struct VhostUserMsg=E2=80=99= may result in an unaligned pointer value [-Waddress-of-packed-member] 688 | VhostUserMemory *memory =3D &vmsg->payload.memory; | ^~~~~~~~~~~~~~~~~~~~~ /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function = =E2=80=98vu_set_vring_addr_exec=E2=80=99: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:817:36: warnin= g: taking address of packed member of =E2=80=98struct VhostUserMsg=E2=80=99= may result in an unaligned pointer value [-Waddress-of-packed-member] 817 | struct vhost_vring_addr *vra =3D &vmsg->payload.addr; | ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Marc-Andr=C3=A9 Lureau Message-id: 20190503130034.24916-2-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- contrib/libvhost-user/libvhost-user.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/= libvhost-user.c index e08d6c7b9741..dcf4a969f238 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -542,7 +542,7 @@ static bool vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg *vmsg) { int i; - VhostUserMemory *memory =3D &vmsg->payload.memory; + VhostUserMemory m =3D vmsg->payload.memory, *memory =3D &m; dev->nregions =3D memory->nregions; =20 DPRINT("Nregions: %d\n", memory->nregions); @@ -684,7 +684,7 @@ static bool vu_set_mem_table_exec(VuDev *dev, VhostUserMsg *vmsg) { int i; - VhostUserMemory *memory =3D &vmsg->payload.memory; + VhostUserMemory m =3D vmsg->payload.memory, *memory =3D &m; =20 for (i =3D 0; i < dev->nregions; i++) { VuDevRegion *r =3D &dev->regions[i]; @@ -813,7 +813,7 @@ vu_set_vring_num_exec(VuDev *dev, VhostUserMsg *vmsg) static bool vu_set_vring_addr_exec(VuDev *dev, VhostUserMsg *vmsg) { - struct vhost_vring_addr *vra =3D &vmsg->payload.addr; + struct vhost_vring_addr addr =3D vmsg->payload.addr, *vra =3D &addr; unsigned int index =3D vra->index; VuVirtq *vq =3D &dev->vq[index]; =20 --=20 2.18.1