From nobody Sat Sep 6 17:31:54 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.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=reject dis=none) header.from=rsg.ci.i.u-tokyo.ac.jp Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1757125674216549.0211613748181; Fri, 5 Sep 2025 19:27:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uuiWD-0001Ng-8N; Fri, 05 Sep 2025 22:19:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uuiW5-0001AF-Qa; Fri, 05 Sep 2025 22:19:01 -0400 Received: from www3579.sakura.ne.jp ([49.212.243.89]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uuiVr-0008BC-EM; Fri, 05 Sep 2025 22:18:58 -0400 Received: from [10.40.4.92] (93-51-222-138.ip268.fastwebnet.it [93.51.222.138]) (authenticated bits=0) by www3579.sakura.ne.jp (8.16.1/8.16.1) with ESMTPSA id 5862BtnX041566 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 6 Sep 2025 11:12:29 +0900 (JST) (envelope-from odaki@rsg.ci.i.u-tokyo.ac.jp) DKIM-Signature: a=rsa-sha256; bh=pI7a0m1fI57fmHlHi8KpEqhcrE4H2Aca0FHoIemSJqk=; c=relaxed/relaxed; d=rsg.ci.i.u-tokyo.ac.jp; h=From:Date:Subject:Message-Id:To; s=rs20250326; t=1757124761; v=1; b=aJNzl5jgDVDS16/icaYiiXgvoNmwSF4RsDf72tV8ZCNl9ziQ341OIP79qT+fTjGr T1gI9kKnXZ44BWbJEplqWshoA+YYb07m3isKndtH/JJUnI7shAHdZQROvaA15Z9X qOOIcLB262MjRI45RA7TwSTVcaedtta4b+CUk9Sbm0bxmzIw6A1tPkR8B1Ul3hgZ OL31nmRtDCl082icfGLWOT/JKLSKc3x2wo8EzT8XHfu1EDiso9tchWmuV/CX51Y1 JOZhJJCj6aFdtjO51RL3IhpJhf6S+pnx2gD/0DVDRMQ/rRe3y+LQvDZQTb2Fwod4 J6Ny4XRZ5QUBfWDclSCO2g== From: Akihiko Odaki Date: Sat, 06 Sep 2025 04:11:11 +0200 Subject: [PATCH 02/22] vfio/pci: Do not unparent in instance_finalize() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250906-use-v1-2-c51caafd1eb7@rsg.ci.i.u-tokyo.ac.jp> References: <20250906-use-v1-0-c51caafd1eb7@rsg.ci.i.u-tokyo.ac.jp> In-Reply-To: <20250906-use-v1-0-c51caafd1eb7@rsg.ci.i.u-tokyo.ac.jp> To: qemu-devel@nongnu.org Cc: Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Peter Xu , David Hildenbrand , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Richard Henderson , Helge Deller , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , "Michael S. Tsirkin" , Gerd Hoffmann , John Snow , qemu-block@nongnu.org, Keith Busch , Klaus Jensen , Jesper Devantier , Marcel Apfelbaum , Nicholas Piggin , qemu-ppc@nongnu.org, John Levon , Thanos Makatos , Yanan Wang , BALATON Zoltan , Jiaxun Yang , Daniel Henrique Barboza , David Gibson , Harsh Prateek Bora , Alexey Kardashevskiy , =?utf-8?q?Alex_Benn=C3=A9e?= , Fabiano Rosas , Thomas Huth , Laurent Vivier , Peter Maydell , Aurelien Jarno , Aleksandar Rikalo , Max Filippov , =?utf-8?q?Herv=C3=A9_Poussineau?= , Mark Cave-Ayland , Artyom Tarasenko , Akihiko Odaki X-Mailer: b4 0.14.2 Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=49.212.243.89; envelope-from=odaki@rsg.ci.i.u-tokyo.ac.jp; helo=www3579.sakura.ne.jp X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1757125675866116600 Children are automatically unparented so manually unparenting is unnecessary. Worse, automatic unparenting happens before the insntance_finalize() callback of the parent gets called, so object_unparent() calls in the callback will refer to objects that are already unparented, which is semantically incorrect. Signed-off-by: Akihiko Odaki --- hw/vfio/pci.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 07257d0fa049b09fc296ac2279a6fafbdf93d277..2e909c190f86a722e1022fa7c45= a96d2dde8d58e 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2000,7 +2000,6 @@ static void vfio_bars_finalize(VFIOPCIDevice *vdev) vfio_region_finalize(&bar->region); if (bar->mr) { assert(bar->size); - object_unparent(OBJECT(bar->mr)); g_free(bar->mr); bar->mr =3D NULL; } @@ -2008,9 +2007,6 @@ static void vfio_bars_finalize(VFIOPCIDevice *vdev) =20 if (vdev->vga) { vfio_vga_quirk_finalize(vdev); - for (i =3D 0; i < ARRAY_SIZE(vdev->vga->region); i++) { - object_unparent(OBJECT(&vdev->vga->region[i].mem)); - } g_free(vdev->vga); } } --=20 2.51.0