From patchwork Thu Jul 2 11:09:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 11638529 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6D2BC92A for ; Thu, 2 Jul 2020 11:12:52 +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 345022070C for ; Thu, 2 Jul 2020 11:12:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="hbj9lj0V" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 345022070C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:41530 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jqx99-0004Ge-Ds for patchwork-qemu-devel@patchwork.kernel.org; Thu, 02 Jul 2020 07:12:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52610) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jqx6E-0006n4-Df for qemu-devel@nongnu.org; Thu, 02 Jul 2020 07:09:50 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:47001 helo=us-smtp-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 1jqx67-00010I-0t for qemu-devel@nongnu.org; Thu, 02 Jul 2020 07:09:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593688182; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8EA/CwHO1eJSEz1Eu9idfGd5hAUrTWXpEbvrQZVSQBI=; b=hbj9lj0Vcly5bnzoaFCNqbofwDviM4NPkJ0pxt4lJ2NOFpx9vBf04td8mcVH9OkK9+pvGx lDMdiEfTAYD+PgGtWio0pG33K8o+1Oh7E0OFe6tlMIf2iv2OXg20r0ZfAn4S6cikyhC9LW GTvqM1rJEw/cmKjEK1f/Pmols/tJfxs= 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-15-CsQI5KtKNQSmXII93Hle1w-1; Thu, 02 Jul 2020 07:09:39 -0400 X-MC-Unique: CsQI5KtKNQSmXII93Hle1w-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 359F0107ACF2 for ; Thu, 2 Jul 2020 11:09:38 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-143.ams2.redhat.com [10.36.112.143]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A91C019C66; Thu, 2 Jul 2020 11:09:37 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id EB2C7113847C; Thu, 2 Jul 2020 13:09:31 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 16/28] qdev: Drop qbus_set_hotplug_handler() parameter @errp Date: Thu, 2 Jul 2020 13:09:19 +0200 Message-Id: <20200702110931.2953148-17-armbru@redhat.com> In-Reply-To: <20200702110931.2953148-1-armbru@redhat.com> References: <20200702110931.2953148-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/02 03:23:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" qbus_set_hotplug_handler() is a simple wrapper around object_property_set_link(). object_property_set_link() fails when the property doesn't exist, is not settable, or its .check() method fails. These are all programming errors here, so passing &error_abort to qbus_set_hotplug_handler() is appropriate. Most of its callers do. Exceptions: * pcie_cap_slot_init(), shpc_init(), spapr_phb_realize() pass NULL, i.e. they ignore errors. * spapr_machine_init() passes &error_fatal. * s390_pcihost_realize(), virtio_serial_device_realize(), s390_pcihost_plug() pass the error to their callers. The latter two keep going after the error, which looks wrong. Drop the @errp parameter, and instead pass &error_abort to object_property_set_link(). Cc: Paolo Bonzini Cc: "Daniel P. Berrangé" Cc: Eduardo Habkost Signed-off-by: Markus Armbruster Message-Id: <20200630090351.1247703-15-armbru@redhat.com> --- include/hw/qdev-core.h | 3 +-- hw/acpi/pcihp.c | 3 +-- hw/acpi/piix4.c | 2 +- hw/char/virtio-serial-bus.c | 4 ++-- hw/core/bus.c | 6 +++--- hw/pci/pcie.c | 2 +- hw/pci/shpc.c | 2 +- hw/ppc/spapr.c | 3 +-- hw/ppc/spapr_pci.c | 4 ++-- hw/s390x/ap-bridge.c | 2 +- hw/s390x/css-bridge.c | 2 +- hw/s390x/s390-pci-bus.c | 14 +++----------- hw/scsi/virtio-scsi.c | 4 ++-- hw/scsi/vmw_pvscsi.c | 2 +- hw/usb/dev-smartcard-reader.c | 2 +- 15 files changed, 22 insertions(+), 33 deletions(-) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 78acdeaed6..fe78073c70 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -535,8 +535,7 @@ extern bool qdev_hot_removed; char *qdev_get_dev_path(DeviceState *dev); -void qbus_set_hotplug_handler(BusState *bus, Object *handler, Error **errp); - +void qbus_set_hotplug_handler(BusState *bus, Object *handler); void qbus_set_bus_hotplug_handler(BusState *bus); static inline bool qbus_is_hotpluggable(BusState *bus) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 33ea2b76ae..9e31ab2da4 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -246,8 +246,7 @@ void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s, object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) { PCIBus *sec = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev)); - qbus_set_hotplug_handler(BUS(sec), OBJECT(hotplug_dev), - &error_abort); + qbus_set_hotplug_handler(BUS(sec), OBJECT(hotplug_dev)); /* We don't have to overwrite any other hotplug handler yet */ assert(QLIST_EMPTY(&sec->child)); } diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 630ca6ec87..283422e0d3 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -506,7 +506,7 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp) piix4_acpi_system_hot_add_init(pci_address_space_io(dev), pci_get_bus(dev), s); - qbus_set_hotplug_handler(BUS(pci_get_bus(dev)), OBJECT(s), &error_abort); + qbus_set_hotplug_handler(BUS(pci_get_bus(dev)), OBJECT(s)); piix4_pm_add_propeties(s); } diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c index 262089c0c9..f9a4428bd6 100644 --- a/hw/char/virtio-serial-bus.c +++ b/hw/char/virtio-serial-bus.c @@ -1056,7 +1056,7 @@ static void virtio_serial_device_realize(DeviceState *dev, Error **errp) /* Spawn a new virtio-serial bus on which the ports will ride as devices */ qbus_create_inplace(&vser->bus, sizeof(vser->bus), TYPE_VIRTIO_SERIAL_BUS, dev, vdev->bus_name); - qbus_set_hotplug_handler(BUS(&vser->bus), OBJECT(vser), errp); + qbus_set_hotplug_handler(BUS(&vser->bus), OBJECT(vser)); vser->bus.vser = vser; QTAILQ_INIT(&vser->ports); @@ -1147,7 +1147,7 @@ static void virtio_serial_device_unrealize(DeviceState *dev) g_free(vser->post_load); } - qbus_set_hotplug_handler(BUS(&vser->bus), NULL, &error_abort); + qbus_set_hotplug_handler(BUS(&vser->bus), NULL); virtio_cleanup(vdev); } diff --git a/hw/core/bus.c b/hw/core/bus.c index 8d4e810d7f..544dd8a6fa 100644 --- a/hw/core/bus.c +++ b/hw/core/bus.c @@ -23,15 +23,15 @@ #include "qemu/module.h" #include "qapi/error.h" -void qbus_set_hotplug_handler(BusState *bus, Object *handler, Error **errp) +void qbus_set_hotplug_handler(BusState *bus, Object *handler) { object_property_set_link(OBJECT(bus), handler, - QDEV_HOTPLUG_HANDLER_PROPERTY, errp); + QDEV_HOTPLUG_HANDLER_PROPERTY, &error_abort); } void qbus_set_bus_hotplug_handler(BusState *bus) { - qbus_set_hotplug_handler(bus, OBJECT(bus), &error_abort); + qbus_set_hotplug_handler(bus, OBJECT(bus)); } int qbus_walk_children(BusState *bus, diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 086d0dfceb..5b48bae0f6 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -574,7 +574,7 @@ void pcie_cap_slot_init(PCIDevice *dev, PCIESlot *s) dev->exp.hpev_notified = false; qbus_set_hotplug_handler(BUS(pci_bridge_get_sec_bus(PCI_BRIDGE(dev))), - OBJECT(dev), NULL); + OBJECT(dev)); } void pcie_cap_slot_reset(PCIDevice *dev) diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c index 99d65d5c4c..b00dce629c 100644 --- a/hw/pci/shpc.c +++ b/hw/pci/shpc.c @@ -649,7 +649,7 @@ int shpc_init(PCIDevice *d, PCIBus *sec_bus, MemoryRegion *bar, shpc_cap_update_dword(d); memory_region_add_subregion(bar, offset, &shpc->mmio); - qbus_set_hotplug_handler(BUS(sec_bus), OBJECT(d), NULL); + qbus_set_hotplug_handler(BUS(sec_bus), OBJECT(d)); d->cap_present |= QEMU_PCI_CAP_SHPC; return 0; diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 44fd578ea9..f6f034d039 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3033,8 +3033,7 @@ static void spapr_machine_init(MachineState *machine) register_savevm_live("spapr/htab", VMSTATE_INSTANCE_ID_ANY, 1, &savevm_htab_handlers, spapr); - qbus_set_hotplug_handler(sysbus_get_default(), OBJECT(machine), - &error_fatal); + qbus_set_hotplug_handler(sysbus_get_default(), OBJECT(machine)); qemu_register_boot_set(spapr_boot_set, spapr); diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 329002ac04..0f00e2421f 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1719,7 +1719,7 @@ static void spapr_phb_unrealize(DeviceState *dev) address_space_remove_listeners(&sphb->iommu_as); address_space_destroy(&sphb->iommu_as); - qbus_set_hotplug_handler(BUS(phb->bus), NULL, &error_abort); + qbus_set_hotplug_handler(BUS(phb->bus), NULL); pci_unregister_root_bus(phb->bus); memory_region_del_subregion(get_system_memory(), &sphb->iowindow); @@ -1868,7 +1868,7 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) bus->flags |= PCI_BUS_EXTENDED_CONFIG_SPACE; } phb->bus = bus; - qbus_set_hotplug_handler(BUS(phb->bus), OBJECT(sphb), NULL); + qbus_set_hotplug_handler(BUS(phb->bus), OBJECT(sphb)); /* * Initialize PHB address space. diff --git a/hw/s390x/ap-bridge.c b/hw/s390x/ap-bridge.c index c4e3188ad6..8bcf8ece9d 100644 --- a/hw/s390x/ap-bridge.c +++ b/hw/s390x/ap-bridge.c @@ -58,7 +58,7 @@ void s390_init_ap(void) bus = qbus_create(TYPE_AP_BUS, dev, TYPE_AP_BUS); /* Enable hotplugging */ - qbus_set_hotplug_handler(bus, OBJECT(dev), &error_abort); + qbus_set_hotplug_handler(bus, OBJECT(dev)); } static void ap_bridge_class_init(ObjectClass *oc, void *data) diff --git a/hw/s390x/css-bridge.c b/hw/s390x/css-bridge.c index e37a54d3f2..9d793d671e 100644 --- a/hw/s390x/css-bridge.c +++ b/hw/s390x/css-bridge.c @@ -111,7 +111,7 @@ VirtualCssBus *virtual_css_bus_init(void) cbus = VIRTUAL_CSS_BUS(bus); /* Enable hotplugging */ - qbus_set_hotplug_handler(bus, OBJECT(dev), &error_abort); + qbus_set_hotplug_handler(bus, OBJECT(dev)); css_register_io_adapters(CSS_IO_ADAPTER_VIRTIO, true, false, 0, &error_abort); diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index a13978bb37..142e52a8ff 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -751,19 +751,11 @@ static void s390_pcihost_realize(DeviceState *dev, Error **errp) pci_setup_iommu(b, s390_pci_dma_iommu, s); bus = BUS(b); - qbus_set_hotplug_handler(bus, OBJECT(dev), &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } + qbus_set_hotplug_handler(bus, OBJECT(dev)); phb->bus = b; s->bus = S390_PCI_BUS(qbus_create(TYPE_S390_PCI_BUS, dev, NULL)); - qbus_set_hotplug_handler(BUS(s->bus), OBJECT(dev), &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } + qbus_set_hotplug_handler(BUS(s->bus), OBJECT(dev)); s->iommu_table = g_hash_table_new_full(g_int64_hash, g_int64_equal, NULL, g_free); @@ -921,7 +913,7 @@ static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev, pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq); pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s); - qbus_set_hotplug_handler(BUS(&pb->sec_bus), OBJECT(s), errp); + qbus_set_hotplug_handler(BUS(&pb->sec_bus), OBJECT(s)); if (dev->hotplugged) { pci_default_write_config(pdev, PCI_PRIMARY_BUS, diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 9b72094a61..b49775269e 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -934,7 +934,7 @@ static void virtio_scsi_device_realize(DeviceState *dev, Error **errp) scsi_bus_new(&s->bus, sizeof(s->bus), dev, &virtio_scsi_scsi_info, vdev->bus_name); /* override default SCSI bus hotplug-handler, with virtio-scsi's one */ - qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(dev), &error_abort); + qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(dev)); virtio_scsi_dataplane_setup(s, errp); } @@ -958,7 +958,7 @@ static void virtio_scsi_device_unrealize(DeviceState *dev) { VirtIOSCSI *s = VIRTIO_SCSI(dev); - qbus_set_hotplug_handler(BUS(&s->bus), NULL, &error_abort); + qbus_set_hotplug_handler(BUS(&s->bus), NULL); virtio_scsi_common_unrealize(dev); } diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c index ec5bf9ea34..df07ab6bfb 100644 --- a/hw/scsi/vmw_pvscsi.c +++ b/hw/scsi/vmw_pvscsi.c @@ -1147,7 +1147,7 @@ pvscsi_realizefn(PCIDevice *pci_dev, Error **errp) scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(pci_dev), &pvscsi_scsi_info, NULL); /* override default SCSI bus hotplug-handler, with pvscsi's one */ - qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(s), &error_abort); + qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(s)); pvscsi_reset_state(s); } diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c index ada18c1983..fcfe216594 100644 --- a/hw/usb/dev-smartcard-reader.c +++ b/hw/usb/dev-smartcard-reader.c @@ -1320,7 +1320,7 @@ static void ccid_realize(USBDevice *dev, Error **errp) usb_desc_init(dev); qbus_create_inplace(&s->bus, sizeof(s->bus), TYPE_CCID_BUS, DEVICE(dev), NULL); - qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(dev), &error_abort); + qbus_set_hotplug_handler(BUS(&s->bus), OBJECT(dev)); s->intr = usb_ep_get(dev, USB_TOKEN_IN, CCID_INT_IN_EP); s->bulk = usb_ep_get(dev, USB_TOKEN_IN, CCID_BULK_IN_EP); s->card = NULL;