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 lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BB82BC61DD6 for ; Wed, 2 Sep 2026 10:12:58 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1x1hxM-00047s-3j; Wed, 02 Sep 2026 06:12:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x1hxK-00047b-LW; Wed, 02 Sep 2026 06:12:34 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x1hxJ-0004Ps-3x; Wed, 02 Sep 2026 06:12:34 -0400 Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6829Vf5L2682817; 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Wed, 2 Sep 2026 10:12:30 GMT Received: from smtprelay07.dal12v.mail.ibm.com ([172.16.1.9]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4gcark91hh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Sep 2026 10:12:30 +0000 (GMT) Received: from smtpav05.dal12v.mail.ibm.com (smtpav05.dal12v.mail.ibm.com [10.241.53.104]) by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 682ACTwK27067058 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 2 Sep 2026 10:12:29 GMT Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6389C58068; Wed, 2 Sep 2026 10:12:29 +0000 (GMT) Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6707558067; Wed, 2 Sep 2026 10:12:28 +0000 (GMT) Received: from [9.61.24.241] (unknown [9.61.24.241]) by smtpav05.dal12v.mail.ibm.com (Postfix) with ESMTP; Wed, 2 Sep 2026 10:12:28 +0000 (GMT) Message-ID: Date: Wed, 2 Sep 2026 06:12:27 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 4/7] pc-bios/s390-ccw: Add support for virtio-net-pci IPL To: Zhuoying Cai , Jared Rossi , qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: mst@redhat.com, borntraeger@linux.ibm.com, jjherne@linux.ibm.com, cohuck@redhat.com, mjrosato@linux.ibm.com, pasic@linux.ibm.com, farosas@suse.de, lvivier@redhat.com, pbonzini@redhat.com References: <20260818205324.580199-1-zycai@linux.ibm.com> <20260818205324.580199-5-zycai@linux.ibm.com> <5a7ed440-ed57-448a-9baa-4626464ee9f8@linux.ibm.com> Content-Language: en-US From: Eric Farman Autocrypt: addr=farman@linux.ibm.com; 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envelope-from=farman@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=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: 2.1.29 Precedence: list List-Id: qemu development 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 8/31/26 2:36 PM, Zhuoying Cai wrote: > One thing worth noting is that virtio_net_init() calls virtio_*_setup(), > which performs virtio_is_supported() as its first step. However, the > return value of virtio_*_setup() is currently ignored in > virtio_net_init(). This is pre-existing behavior and applies to both the > CCW and PCI paths. If setup fails, execution still proceeds to MAC > negotiation and buffer allocation. > > Since we are removing the network-specific setup from the PCI path, > would it make sense to also fix virtio_net_init() to check and propagate > the return value of virtio_*_setup()? The error is already reported by > virtio_*_setup(), but execution currently continues into MAC negotiation > and buffer allocation even when device initialization has failed. Yes, I would recommend making that change here as well, just as Jared is doing in the virtio-scsi path.