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 X-Spam-Level: X-Spam-Status: No, score=-12.3 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT 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 9DB14C4727C for ; Tue, 29 Sep 2020 23:58:25 +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 05947206CD for ; Tue, 29 Sep 2020 23:58:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mqBRxmtm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 05947206CD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33274 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNPVn-0006hh-V2 for qemu-devel@archiver.kernel.org; Tue, 29 Sep 2020 19:58:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43098) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNPL5-0001dV-7d; Tue, 29 Sep 2020 19:47:19 -0400 Received: from mail-ej1-x642.google.com ([2a00:1450:4864:20::642]:40236) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNPL3-0003Dd-8A; Tue, 29 Sep 2020 19:47:18 -0400 Received: by mail-ej1-x642.google.com with SMTP id p15so68653ejm.7; Tue, 29 Sep 2020 16:47:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:mime-version:date:message-id:subject:to:cc; bh=KhSGaXrogwd/Fi04sIgiySppfiPQ9ooG3Z4HZ+ITPnI=; b=mqBRxmtm67ioXMInTZjemci+6L/dxaP7U/eHHOx4u8PVx45jI2aGXkeTwRcw5L+wTD WrfxicpZFzeu2ojzrL+btYIK23QXrk0gv59lAvoRtOP3Ak51NG8txKqbyUp+4c5K2cvv IGkVksu45z6jSVr4xkFqtrAPb8nZI4WHG8NJPXX1J6KvK6KpnnJCPb9RwF95KgsCI5SU P8LRv/guuX6QYhShVVxqRmGhDZq/OysfiFOw89jvE1PmeiIstHeUEmABCMq2IIYD/fd2 Eo7s+/YrBjNPl+rkM+LzjGpxnGSpZfHNJG1d5je45Qbbzcl6Oi2uViPCAHxwCd7dmWpf N8eA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:date:message-id:subject:to:cc; bh=KhSGaXrogwd/Fi04sIgiySppfiPQ9ooG3Z4HZ+ITPnI=; b=h43JXERzyvQEMrvcGp2HrnXKYoTH0w5pSChoIZ34P3vt4/XFOgmBqPb85knO/vtDsH PEPjneW89vx1lOwaeVdOm3q4oorVWhcmdlT6/djsPYLH9uGlhqjnWph3fUpJAUOlIck4 ufx3qzC6OkgwSSypNJiJV42zJcuCvMJtZPidg3RGm1kDn4e8NNQO/MexYDQdbnxDSzsU cithU92ZvLMaaVOKN10pKreGnBHH9K5i3UJy44iOlyLr0jVEd2dzInDC1qeuSsY5FF7V EJWd03sNgGt50sIroyGwHRkvKxRz3lC75l5WSAcCl4p+qlTWLdPx2B6IS/5aR7RVP8an XcBg== X-Gm-Message-State: AOAM531a3KZnU0dxwBdk4z7Wa7ddaGXlZwWdssY2k65b8hsM0Ng822w6 rqsJ3Ru1hb4Xp5PIwPVzihkODDBuDcoi0ngv+1/9BnEL3lkD1Q== X-Google-Smtp-Source: ABdhPJzbtkEQEJ8RtOxDAdrNjzt8PRm+KRaHRT6zE6umW4T9ZFW74esZAFsEH45wVwHuBNasp873LHxbUtoMYB7T4pk= X-Received: by 2002:a17:906:30cf:: with SMTP id b15mr60606ejb.351.1601423235078; Tue, 29 Sep 2020 16:47:15 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Tue, 29 Sep 2020 16:47:14 -0700 From: Sergey Nizovtsev X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Date: Tue, 29 Sep 2020 16:47:14 -0700 Message-ID: Subject: [PATCH] qom: fix objects with improper parent type To: qemu-devel@nongnu.org Content-Type: text/plain; charset="UTF-8" Received-SPF: pass client-ip=2a00:1450:4864:20::642; envelope-from=snizovtsev@gmail.com; helo=mail-ej1-x642.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Cc: Ben Warren , "Michael S. Tsirkin" , qemu-trivial@nongnu.org, Jason Wang , Markus Armbruster , Sergey Nizovtsev , =?UTF-8?B?TWFyYy1BbmRyw6kgTHVyZWF1?= , Igor Mammedov Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Some objects accidentally inherit ObjectClass instead of Object. They compile silently but may crash after downcasting. In this patch, we introduce a coccinelle script to find broken declarations and fix them manually with proper base type. Signed-off-by: Sergey Nizovtsev --- scripts/coccinelle/qobject-parent-type.cocci | 26 ++++++++++++++++++++ include/hw/acpi/vmgenid.h | 2 +- include/hw/misc/vmcoreinfo.h | 2 +- include/net/can_host.h | 2 +- MAINTAINERS | 1 + 5 files changed, 30 insertions(+), 3 deletions(-) create mode 100644 scripts/coccinelle/qobject-parent-type.cocci diff --git a/scripts/coccinelle/qobject-parent-type.cocci b/scripts/coccinelle/qobject-parent-type.cocci new file mode 100644 index 0000000000..9afb3edd97 --- /dev/null +++ b/scripts/coccinelle/qobject-parent-type.cocci @@ -0,0 +1,26 @@ +// Highlight object declarations that don't look like object class but +// accidentally inherit from it. + +@match@ +identifier obj_t, fld; +type parent_t =~ ".*Class$"; +@@ +struct obj_t { + parent_t fld; + ... +}; + +@script:python filter depends on match@ +obj_t << match.obj_t; +@@ +is_class_obj = obj_t.endswith('Class') +cocci.include_match(not is_class_obj) + +@replacement depends on filter@ +identifier match.obj_t, match.fld; +type match.parent_t; +@@ +struct obj_t { +* parent_t fld; + ... +}; diff --git a/include/hw/acpi/vmgenid.h b/include/hw/acpi/vmgenid.h index d50fbacb8e..cb4ad37fc5 100644 --- a/include/hw/acpi/vmgenid.h +++ b/include/hw/acpi/vmgenid.h @@ -19,7 +19,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(VmGenIdState, VMGENID) struct VmGenIdState { - DeviceClass parent_obj; + DeviceState parent_obj; QemuUUID guid; /* The 128-bit GUID seen by the guest */ uint8_t vmgenid_addr_le[8]; /* Address of the GUID (little-endian) */ }; diff --git a/include/hw/misc/vmcoreinfo.h b/include/hw/misc/vmcoreinfo.h index ebada6617a..0b7b55d400 100644 --- a/include/hw/misc/vmcoreinfo.h +++ b/include/hw/misc/vmcoreinfo.h @@ -24,7 +24,7 @@ DECLARE_INSTANCE_CHECKER(VMCoreInfoState, VMCOREINFO, typedef struct fw_cfg_vmcoreinfo FWCfgVMCoreInfo; struct VMCoreInfoState { - DeviceClass parent_obj; + DeviceState parent_obj; bool has_vmcoreinfo; FWCfgVMCoreInfo vmcoreinfo; diff --git a/include/net/can_host.h b/include/net/can_host.h index 4e3ce3f954..caab71bdda 100644 --- a/include/net/can_host.h +++ b/include/net/can_host.h @@ -35,7 +35,7 @@ OBJECT_DECLARE_TYPE(CanHostState, CanHostClass, CAN_HOST) struct CanHostState { - ObjectClass oc; + Object oc; CanBusState *bus; CanBusClientState bus_client; diff --git a/MAINTAINERS b/MAINTAINERS index 5eed1e692b..2160b8196a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2402,6 +2402,7 @@ F: qobject/ F: include/qapi/qmp/ X: include/qapi/qmp/dispatch.h F: scripts/coccinelle/qobject.cocci +F: scripts/coccinelle/qobject-parent-type.cocci F: tests/check-qdict.c F: tests/check-qjson.c F: tests/check-qlist.c -- 2.28.0