From patchwork Mon Nov 25 15:40:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1200472 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="UCwVOL4G"; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 47MBFd5J5jz9sPJ for ; Tue, 26 Nov 2019 02:45:41 +1100 (AEDT) Received: from localhost ([::1]:45558 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGYV-0004ea-4b for incoming@patchwork.ozlabs.org; Mon, 25 Nov 2019 10:45:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33918) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGTO-00007y-81 for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iZGTN-0002Ik-1S for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:22 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:33744 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iZGTM-0002Gm-Ti for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574696420; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RBpsFCVeMRCzlLpskwT+ExfayS9Zv6LYuKZdvR/1r7k=; b=UCwVOL4GwrRGj1ZlSD/Jw2YZ5nfQ4wurhJYqN8ux1SsveK9hN1qSTQcoX2cbQEmF3tLbCR IAzxFb44sPIwcGws5PcRbxy8ckwCnzSjU256dvQIDBVRIAkuxgFcJfyQcAJxnK0CtXVNvY TUwAYfPZ1dVWnkit/gHN/fjqmBJxvgA= 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-383-VYFjNEEsNN2gp2x3m_iziw-1; Mon, 25 Nov 2019 10:40:16 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 79F77802B9F; Mon, 25 Nov 2019 15:40:15 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-31.pek2.redhat.com [10.72.12.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id 728E85D9CA; Mon, 25 Nov 2019 15:40:11 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 1/4] net/virtio: fix dev_unplug_pending Date: Mon, 25 Nov 2019 23:40:04 +0800 Message-Id: <1574696407-4188-2-git-send-email-jasowang@redhat.com> In-Reply-To: <1574696407-4188-1-git-send-email-jasowang@redhat.com> References: <1574696407-4188-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: VYFjNEEsNN2gp2x3m_iziw-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 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: , Cc: Jason Wang , Jens Freimann , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Jens Freimann .dev_unplug_pending is set up by virtio-net code indepent of failover support was set for the device or not. This gives a wrong result when we check for existing primary devices in migration code. Fix this by actually calling dev_unplug_pending() instead of just checking if the function pointer was set. When the feature was not negotiated dev_unplug_pending() will always return false. This prevents us from going into the wait-unplug state when there's no primary device present. Fixes: 9711cd0dfc3f ("net/virtio: add failover support") Signed-off-by: Jens Freimann Reported-by: Dr. David Alan Gilbert Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- hw/net/virtio-net.c | 3 +++ migration/savevm.c | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 97a5113..946039c 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3124,6 +3124,9 @@ static bool primary_unplug_pending(void *opaque) VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIONet *n = VIRTIO_NET(vdev); + if (!virtio_vdev_has_feature(vdev, VIRTIO_NET_F_STANDBY)) { + return false; + } return n->primary_dev ? n->primary_dev->pending_deleted_event : false; } diff --git a/migration/savevm.c b/migration/savevm.c index 966a9c3..a71b930 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1119,7 +1119,8 @@ int qemu_savevm_nr_failover_devices(void) int n = 0; QTAILQ_FOREACH(se, &savevm_state.handlers, entry) { - if (se->vmsd && se->vmsd->dev_unplug_pending) { + if (se->vmsd && se->vmsd->dev_unplug_pending && + se->vmsd->dev_unplug_pending(se->opaque)) { n++; } } From patchwork Mon Nov 25 15:40:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1200471 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="XgNCCi4Q"; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 47MBDQ3fsTz9sPJ for ; Tue, 26 Nov 2019 02:44:38 +1100 (AEDT) Received: from localhost ([::1]:45542 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGXU-0003V4-1e for incoming@patchwork.ozlabs.org; Mon, 25 Nov 2019 10:44:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33945) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGTQ-0000C0-Ro for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iZGTP-0002OC-Bn for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:24 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:27820 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iZGTP-0002N2-7U for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574696422; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/r48QDVkIew/2iuv/vLqFDvHS62as2rMwRzoaxrIwbM=; b=XgNCCi4Qsz6VFJBWPMCL3DB3UNvo7FZv452jtenotAVeJd8D22pA7gpbElunlR4Jq8I1WU 40LQOoIcasLQtJlN/Itywgy0iDAE3AFQD09VFjiZopb8+WtP4VNgzcGJccXvSz2ykXcmea Fcxu9mw/7ynkx2nSqlJKf34IOx8Q2K4= 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-275-gTf_oTU9M3KT0l9EDZvcJg-1; Mon, 25 Nov 2019 10:40:18 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A5633DBB0; Mon, 25 Nov 2019 15:40:17 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-31.pek2.redhat.com [10.72.12.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id 054845D9CA; Mon, 25 Nov 2019 15:40:15 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 2/4] net/virtio: return early when failover primary alread added Date: Mon, 25 Nov 2019 23:40:05 +0800 Message-Id: <1574696407-4188-3-git-send-email-jasowang@redhat.com> In-Reply-To: <1574696407-4188-1-git-send-email-jasowang@redhat.com> References: <1574696407-4188-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: gTf_oTU9M3KT0l9EDZvcJg-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 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: , Cc: Jason Wang , Jens Freimann , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Jens Freimann Bail out when primary device was already added before. This avoids printing a wrong warning message during reboot. Fixes: 9711cd0dfc3f ("net/virtio: add failover support") Signed-off-by: Jens Freimann Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- hw/net/virtio-net.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 946039c..ac4d191 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -759,6 +759,10 @@ static void failover_add_primary(VirtIONet *n, Error **errp) { Error *err = NULL; + if (n->primary_dev) { + return; + } + n->primary_device_opts = qemu_opts_find(qemu_find_opts("device"), n->primary_device_id); if (n->primary_device_opts) { From patchwork Mon Nov 25 15:40:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1200470 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="F4E8q4fy"; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 47MBBG3M2zz9sPJ for ; Tue, 26 Nov 2019 02:42:44 +1100 (AEDT) Received: from localhost ([::1]:45518 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGVc-0001oa-W0 for incoming@patchwork.ozlabs.org; Mon, 25 Nov 2019 10:42:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33940) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZGTQ-0000Ay-7D for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iZGTO-0002Mm-U6 for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:24 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:51931 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iZGTO-0002LR-PT for qemu-devel@nongnu.org; Mon, 25 Nov 2019 10:40:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574696422; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FsLeO+lghsEcl92KqwNTr47O3Zogpop0sIHUKDu+20o=; b=F4E8q4fyRz1RCyZY7tC4XmbPjDszi+1MXqOGke24owUgBnypOnklSC64ABAqgJ+qjQWOnD mRDAmuRAy8yiGEAGpGM3e9mRzazp01mlpzLJHkD1qJgj5Pp6Ir+hiImw9hrxpdNU5pFkFa u7fs2SfgHmHyYwO6w/GkWR/DEtSxqZo= 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-342-plU76t1tN5q01cuewssWBA-1; Mon, 25 Nov 2019 10:40:20 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D2C8D8024CF; Mon, 25 Nov 2019 15:40:19 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-31.pek2.redhat.com [10.72.12.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id 319A45D9CA; Mon, 25 Nov 2019 15:40:17 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 3/4] net/virtio: fix re-plugging of primary device Date: Mon, 25 Nov 2019 23:40:06 +0800 Message-Id: <1574696407-4188-4-git-send-email-jasowang@redhat.com> In-Reply-To: <1574696407-4188-1-git-send-email-jasowang@redhat.com> References: <1574696407-4188-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: plU76t1tN5q01cuewssWBA-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: , Cc: Jason Wang , Jens Freimann , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Jens Freimann failover_replug_primary was returning true on failure which lead to re-plug not working when a migration failed. Fix this by returning success when hotplug worked. This is a bug that was missed in last round of testing but was tested succesfully with this version. Also make sure we don't pass NULL to qdev_set_parent_bus(). This fixes CID 1407224. Fixes: 9711cd0dfc3f ("net/virtio: add failover support") Signed-off-by: Jens Freimann Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- hw/net/virtio-net.c | 42 +++++++++++++++++++++++++----------------- 1 file changed, 25 insertions(+), 17 deletions(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index ac4d191..565dea0 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -2805,25 +2805,33 @@ static bool failover_replug_primary(VirtIONet *n, Error **errp) n->primary_device_opts = qemu_opts_from_qdict( qemu_find_opts("device"), n->primary_device_dict, errp); - } - if (n->primary_device_opts) { - if (n->primary_dev) { - n->primary_bus = n->primary_dev->parent_bus; - } - qdev_set_parent_bus(n->primary_dev, n->primary_bus); - n->primary_should_be_hidden = false; - qemu_opt_set_bool(n->primary_device_opts, - "partially_hotplugged", true, errp); - hotplug_ctrl = qdev_get_hotplug_handler(n->primary_dev); - if (hotplug_ctrl) { - hotplug_handler_pre_plug(hotplug_ctrl, n->primary_dev, errp); - hotplug_handler_plug(hotplug_ctrl, n->primary_dev, errp); + if (!n->primary_device_opts) { + error_setg(errp, "virtio_net: couldn't find primary device opts"); + goto out; } - if (!n->primary_dev) { + } + if (!n->primary_dev) { error_setg(errp, "virtio_net: couldn't find primary device"); - } + goto out; } - return *errp != NULL; + + n->primary_bus = n->primary_dev->parent_bus; + if (!n->primary_bus) { + error_setg(errp, "virtio_net: couldn't find primary bus"); + goto out; + } + qdev_set_parent_bus(n->primary_dev, n->primary_bus); + n->primary_should_be_hidden = false; + qemu_opt_set_bool(n->primary_device_opts, + "partially_hotplugged", true, errp); + hotplug_ctrl = qdev_get_hotplug_handler(n->primary_dev); + if (hotplug_ctrl) { + hotplug_handler_pre_plug(hotplug_ctrl, n->primary_dev, errp); + hotplug_handler_plug(hotplug_ctrl, n->primary_dev, errp); + } + +out: + return *errp == NULL; } static void virtio_net_handle_migration_primary(VirtIONet *n, @@ -2852,7 +2860,7 @@ static void virtio_net_handle_migration_primary(VirtIONet *n, warn_report("couldn't unplug primary device"); } } else if (migration_has_failed(s)) { - /* We already unplugged the device let's plugged it back */ + /* We already unplugged the device let's plug it back */ if (!failover_replug_primary(n, &err)) { if (err) { error_report_err(err); 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bh=sY61yhknOowK74+/u3ndk4J62lzQKRsHnDv4mPDXX3w=; b=gpwSqLpL0RquMw+x8z6CbG/RJcGdCt3Ze6zKcBa0wjv31eVZ6euLJYa0C2Z0ylwbLNmykP xqM4HW1M1YWNNC6wk+qWfP4hCq9RHju+gtkHST1tKzm0v0QpRU+YdcItDYFYAfsblImzoG vlIMGlGm2OQdi5x6Vxw/hMN+pTSZ9yw= 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-286-JDcknIFhOZCvvr7aBLAggg-1; Mon, 25 Nov 2019 10:40:22 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0B322104ED3F; Mon, 25 Nov 2019 15:40:22 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-31.pek2.redhat.com [10.72.12.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5E4F15D9CA; Mon, 25 Nov 2019 15:40:20 +0000 (UTC) From: Jason Wang To: peter.maydell@linaro.org Subject: [PULL 4/4] net/virtio: return error when device_opts arg is NULL Date: Mon, 25 Nov 2019 23:40:07 +0800 Message-Id: <1574696407-4188-5-git-send-email-jasowang@redhat.com> In-Reply-To: <1574696407-4188-1-git-send-email-jasowang@redhat.com> References: <1574696407-4188-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: JDcknIFhOZCvvr7aBLAggg-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.61 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: , Cc: Jason Wang , Jens Freimann , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Jens Freimann This fixes CID 1407222. Fixes: 9711cd0dfc3f ("net/virtio: add failover support") Signed-off-by: Jens Freimann Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- hw/net/virtio-net.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 565dea0..3c31471 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -2880,9 +2880,12 @@ static int virtio_net_primary_should_be_hidden(DeviceListener *listener, QemuOpts *device_opts) { VirtIONet *n = container_of(listener, VirtIONet, primary_listener); - bool match_found; - bool hide; + bool match_found = false; + bool hide = false; + if (!device_opts) { + return -1; + } n->primary_device_dict = qemu_opts_to_qdict(device_opts, n->primary_device_dict); if (n->primary_device_dict) { @@ -2890,7 +2893,7 @@ static int virtio_net_primary_should_be_hidden(DeviceListener *listener, n->standby_id = g_strdup(qdict_get_try_str(n->primary_device_dict, "failover_pair_id")); } - if (device_opts && g_strcmp0(n->standby_id, n->netclient_name) == 0) { + if (g_strcmp0(n->standby_id, n->netclient_name) == 0) { match_found = true; } else { match_found = false;