From nobody Thu Apr 3 11:38:24 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1742526868170981.2213456107947; Thu, 20 Mar 2025 20:14:28 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tvSow-0002Mk-FM; Thu, 20 Mar 2025 23:13:18 -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 1tvSor-0002L2-HG for qemu-devel@nongnu.org; Thu, 20 Mar 2025 23:13:13 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tvSom-0005Ks-Ms for qemu-devel@nongnu.org; Thu, 20 Mar 2025 23:13:12 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxdWlB2dxnC5WfAA--.7431S3; Fri, 21 Mar 2025 11:13:05 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMCxLcU82dxnczRXAA--.54409S6; Fri, 21 Mar 2025 11:13:05 +0800 (CST) From: Bibo Mao To: Song Gao , Markus Armbruster Cc: Jiaxun Yang , qemu-devel@nongnu.org, Paolo Bonzini Subject: [PATCH v6 4/6] hw/loongarch/virt: Eliminate error_propagate() Date: Fri, 21 Mar 2025 11:12:57 +0800 Message-Id: <20250321031259.2419842-5-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250321031259.2419842-1-maobibo@loongson.cn> References: <20250321031259.2419842-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMCxLcU82dxnczRXAA--.54409S6 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 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: 1742526871973019100 Content-Type: text/plain; charset="utf-8" When there is an error, it is put into a local variable and then propagated to somewhere else. Instead the error can be set right away, error propagation can be removed. Signed-off-by: Bibo Mao Reviewed-by: Markus Armbruster --- hw/loongarch/virt.c | 32 +++++++++++--------------------- 1 file changed, 11 insertions(+), 21 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 503362a69e..562e44e112 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -859,30 +859,29 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, LoongArchCPU *cpu =3D LOONGARCH_CPU(dev); CPUState *cs =3D CPU(dev); CPUArchId *cpu_slot; - Error *err =3D NULL; LoongArchCPUTopo topo; int arch_id; =20 if (lvms->acpi_ged) { if ((cpu->thread_id < 0) || (cpu->thread_id >=3D ms->smp.threads))= { - error_setg(&err, + error_setg(errp, "Invalid thread-id %u specified, must be in range 1= :%u", cpu->thread_id, ms->smp.threads - 1); - goto out; + return; } =20 if ((cpu->core_id < 0) || (cpu->core_id >=3D ms->smp.cores)) { - error_setg(&err, + error_setg(errp, "Invalid core-id %u specified, must be in range 1:%= u", cpu->core_id, ms->smp.cores - 1); - goto out; + return; } =20 if ((cpu->socket_id < 0) || (cpu->socket_id >=3D ms->smp.sockets))= { - error_setg(&err, + error_setg(errp, "Invalid socket-id %u specified, must be in range 1= :%u", cpu->socket_id, ms->smp.sockets - 1); - goto out; + return; } =20 topo.socket_id =3D cpu->socket_id; @@ -891,11 +890,11 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, arch_id =3D virt_get_arch_id_from_topo(ms, &topo); cpu_slot =3D virt_find_cpu_slot(ms, arch_id); if (CPU(cpu_slot->cpu)) { - error_setg(&err, + error_setg(errp, "cpu(id%d=3D%d:%d:%d) with arch-id %" PRIu64 " exis= ts", cs->cpu_index, cpu->socket_id, cpu->core_id, cpu->thread_id, cpu_slot->arch_id); - goto out; + return; } } else { /* For cold-add cpu, find empty cpu slot */ @@ -911,33 +910,24 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug= _dev, cpu->env.address_space_iocsr =3D &lvms->as_iocsr; cpu->phy_id =3D cpu_slot->arch_id; cs->cpu_index =3D cpu_slot - ms->possible_cpus->cpus; - numa_cpu_pre_plug(cpu_slot, dev, &err); -out: - if (err) { - error_propagate(errp, err); - } + numa_cpu_pre_plug(cpu_slot, dev, errp); } =20 static void virt_cpu_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(hotplug_dev= ); - Error *err =3D NULL; LoongArchCPU *cpu =3D LOONGARCH_CPU(dev); CPUState *cs =3D CPU(dev); =20 if (cs->cpu_index =3D=3D 0) { - error_setg(&err, "hot-unplug of boot cpu(id%d=3D%d:%d:%d) not supp= orted", + error_setg(errp, "hot-unplug of boot cpu(id%d=3D%d:%d:%d) not supp= orted", cs->cpu_index, cpu->socket_id, cpu->core_id, cpu->thread_id); - error_propagate(errp, err); return; } =20 - hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &= err); - if (err) { - error_propagate(errp, err); - } + hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, e= rrp); } =20 static void virt_cpu_unplug(HotplugHandler *hotplug_dev, --=20 2.39.3