From patchwork Mon Sep 14 12:35:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kurz X-Patchwork-Id: 273813 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=-9.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS 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 629F0C433E2 for ; Mon, 14 Sep 2020 12:41:39 +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 116B720771 for ; Mon, 14 Sep 2020 12:41:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 116B720771 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33568 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kHnne-0000bT-2u for qemu-devel@archiver.kernel.org; Mon, 14 Sep 2020 08:41:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37898) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kHni5-00078o-UT for qemu-devel@nongnu.org; Mon, 14 Sep 2020 08:35:55 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:54949 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kHni2-0000pT-G0 for qemu-devel@nongnu.org; Mon, 14 Sep 2020 08:35:52 -0400 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-360-RztJe6czPCCMT3mXO8w4Xw-1; Mon, 14 Sep 2020 08:35:36 -0400 X-MC-Unique: RztJe6czPCCMT3mXO8w4Xw-1 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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id BBE7E1021D22; Mon, 14 Sep 2020 12:35:34 +0000 (UTC) Received: from bahia.redhat.com (ovpn-112-218.ams2.redhat.com [10.36.112.218]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6AF8B1002393; Mon, 14 Sep 2020 12:35:33 +0000 (UTC) From: Greg Kurz To: qemu-devel@nongnu.org Subject: [PATCH 11/15] spapr: Simplify error handling in spapr_cpu_core_realize() Date: Mon, 14 Sep 2020 14:35:01 +0200 Message-Id: <20200914123505.612812-12-groug@kaod.org> In-Reply-To: <20200914123505.612812-1-groug@kaod.org> References: <20200914123505.612812-1-groug@kaod.org> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=groug@kaod.org X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: kaod.org Received-SPF: softfail client-ip=205.139.110.61; envelope-from=groug@kaod.org; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/14 02:33:07 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no 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: Greg Kurz , Vladimir Sementsov-Ogievskiy , qemu-ppc@nongnu.org, Markus Armbruster , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" As recommended in "qapi/error.h", add a bool return value to spapr_realize_vcpu() and use it in spapr_cpu_core_realize() in order to get rid of the error propagation overhead. Signed-off-by: Greg Kurz Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Philippe Mathieu-Daudé --- hw/ppc/spapr_cpu_core.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 0c879d4da262..b03620823adb 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -227,14 +227,14 @@ static void spapr_cpu_core_unrealize(DeviceState *dev) g_free(sc->threads); } -static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, +static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, SpaprCpuCore *sc, Error **errp) { CPUPPCState *env = &cpu->env; CPUState *cs = CPU(cpu); if (!qdev_realize(DEVICE(cpu), NULL, errp)) { - return; + return false; } /* Set time-base frequency to 512 MHz */ @@ -245,13 +245,14 @@ static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, if (spapr_irq_cpu_intc_create(spapr, cpu, errp) < 0) { cpu_remove_sync(CPU(cpu)); - return; + return false; } if (!sc->pre_3_0_migration) { vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state, cpu->machine_data); } + return true; } static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp) @@ -312,7 +313,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) TYPE_SPAPR_MACHINE); SpaprCpuCore *sc = SPAPR_CPU_CORE(OBJECT(dev)); CPUCore *cc = CPU_CORE(OBJECT(dev)); - Error *local_err = NULL; int i, j; if (!spapr) { @@ -322,15 +322,14 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) sc->threads = g_new(PowerPCCPU *, cc->nr_threads); for (i = 0; i < cc->nr_threads; i++) { - sc->threads[i] = spapr_create_vcpu(sc, i, &local_err); - if (local_err) { + sc->threads[i] = spapr_create_vcpu(sc, i, errp); + if (!sc->threads[i]) { goto err; } } for (j = 0; j < cc->nr_threads; j++) { - spapr_realize_vcpu(sc->threads[j], spapr, sc, &local_err); - if (local_err) { + if (!spapr_realize_vcpu(sc->threads[j], spapr, sc, errp)) { goto err_unrealize; } } @@ -347,7 +346,6 @@ err: spapr_delete_vcpu(sc->threads[i], sc); } g_free(sc->threads); - error_propagate(errp, local_err); } static Property spapr_cpu_core_properties[] = {