Merge tag 'pull-error-2025-03-21' of https://repo.or.cz/qemu/armbru into staging

Error reporting patches for 2025-03-21

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# gpg: Signature made Fri 21 Mar 2025 10:36:25 EDT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-error-2025-03-21' of https://repo.or.cz/qemu/armbru:
  target/loongarch: Clean up virt_cpu_irq_init() error handling
  target/loongarch: Remove unnecessary temporary variable assignment
  hw/loongarch/virt: Eliminate error_propagate()
  target/loongarch: Fix error handling of KVM feature checks
  hw/xen: Downgrade a xen_bus_realize() non-error to warning
  hw/xen: Fix xen_bus_realize() error handling
  error: Strip trailing '\n' from an error string argument
  cryptodev: Fix error handling in cryptodev_lkcf_execute_task()

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

backends/cryptodev-lkcf.c

@@ -330,6 +330,8 @@ static void cryptodev_lkcf_execute_task(CryptoDevLKCFTask *task)
             cryptodev_lkcf_set_op_desc(&session->akcipher_opts, op_desc,
                                        sizeof(op_desc), &local_error) != 0) {
             error_report_err(local_error);
+            status = -VIRTIO_CRYPTO_ERR;
+            goto out;
         } else {
             key_id = add_key(KCTL_KEY_TYPE_PKEY, "lkcf-backend-priv-key",
                              p8info, p8info_len, KCTL_KEY_RING);
@@ -346,6 +348,7 @@ static void cryptodev_lkcf_execute_task(CryptoDevLKCFTask *task)
                                         session->key, session->keylen,
                                         &local_error);
         if (!akcipher) {
+            error_report_err(local_error);
             status = -VIRTIO_CRYPTO_ERR;
             goto out;
         }

hw/loongarch/virt.c

@@ -328,7 +328,6 @@ static void virt_cpu_irq_init(LoongArchVirtMachineState *lvms)
     MachineClass *mc = MACHINE_GET_CLASS(ms);
     const CPUArchIdList *possible_cpus;
     CPUState *cs;
-    Error *err = NULL;
 
     /* cpu nodes */
     possible_cpus = mc->possible_cpu_arch_ids(ms);
@@ -338,8 +337,10 @@ static void virt_cpu_irq_init(LoongArchVirtMachineState *lvms)
             continue;
         }
 
-        hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), DEVICE(cs), &err);
-        hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs), &err);
+        hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), DEVICE(cs),
+                             &error_abort);
+        hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs),
+                             &error_abort);
     }
 }
 
@@ -860,30 +861,29 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug_dev,
     LoongArchCPU *cpu = LOONGARCH_CPU(dev);
     CPUState *cs = CPU(dev);
     CPUArchId *cpu_slot;
-    Error *err = NULL;
     LoongArchCPUTopo topo;
     int arch_id;
 
     if (lvms->acpi_ged) {
         if ((cpu->thread_id < 0) || (cpu->thread_id >= 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;
         }
 
         if ((cpu->core_id < 0) || (cpu->core_id >= 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;
         }
 
         if ((cpu->socket_id < 0) || (cpu->socket_id >= 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;
         }
 
         topo.socket_id = cpu->socket_id;
@@ -892,11 +892,11 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug_dev,
         arch_id =  virt_get_arch_id_from_topo(ms, &topo);
         cpu_slot = virt_find_cpu_slot(ms, arch_id);
         if (CPU(cpu_slot->cpu)) {
-            error_setg(&err,
+            error_setg(errp,
                        "cpu(id%d=%d:%d:%d) with arch-id %" PRIu64 " exists",
                        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 */
@@ -912,33 +912,24 @@ static void virt_cpu_pre_plug(HotplugHandler *hotplug_dev,
     cpu->env.address_space_iocsr = &lvms->as_iocsr;
     cpu->phy_id = cpu_slot->arch_id;
     cs->cpu_index = 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);
 }
 
 static void virt_cpu_unplug_request(HotplugHandler *hotplug_dev,
                                     DeviceState *dev, Error **errp)
 {
     LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
-    Error *err = NULL;
     LoongArchCPU *cpu = LOONGARCH_CPU(dev);
     CPUState *cs = CPU(dev);
 
     if (cs->cpu_index == 0) {
-        error_setg(&err, "hot-unplug of boot cpu(id%d=%d:%d:%d) not supported",
+        error_setg(errp, "hot-unplug of boot cpu(id%d=%d:%d:%d) not supported",
                    cs->cpu_index, cpu->socket_id,
                    cpu->core_id, cpu->thread_id);
-        error_propagate(errp, err);
         return;
     }
 
-    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, errp);
 }
 
 static void virt_cpu_unplug(HotplugHandler *hotplug_dev,

hw/xen/xen-bus.c

@@ -353,10 +353,10 @@ static void xen_bus_realize(BusState *bus, Error **errp)
             xs_node_watch(xenbus->xsh, node, key, xen_bus_backend_changed,
                           xenbus, &local_err);
         if (local_err) {
-            /* This need not be treated as a hard error so don't propagate */
-            error_reportf_err(local_err,
-                              "failed to set up '%s' enumeration watch: ",
-                              type[i]);
+            warn_reportf_err(local_err,
+                             "failed to set up '%s' enumeration watch: ",
+                             type[i]);
+            local_err = NULL;
         }
 
         g_free(node);

net/vmnet-common.m

@@ -94,7 +94,7 @@ ssize_t vmnet_receive_common(NetClientState *nc,
 
     if_status = vmnet_write(s->vmnet_if, &packet, &pkt_cnt);
     if (if_status != VMNET_SUCCESS) {
-        error_report("vmnet: write error: %s\n",
+        error_report("vmnet: write error: %s",
                      vmnet_status_map_str(if_status));
         return -1;
     }

target/loongarch/kvm/kvm.c

@@ -1081,7 +1081,6 @@ int kvm_arch_init_vcpu(CPUState *cs)
     int ret;
     Error *local_err = NULL;
 
-    ret = 0;
     qemu_add_vm_change_state_handler(kvm_loongarch_vm_stage_change, cs);
 
     if (!kvm_get_one_reg(cs, KVM_REG_LOONGARCH_DEBUG_INST, &val)) {
@@ -1091,29 +1090,34 @@ int kvm_arch_init_vcpu(CPUState *cs)
     ret = kvm_cpu_check_lsx(cs, &local_err);
     if (ret < 0) {
         error_report_err(local_err);
+        return ret;
     }
 
     ret = kvm_cpu_check_lasx(cs, &local_err);
     if (ret < 0) {
         error_report_err(local_err);
+        return ret;
     }
 
     ret = kvm_cpu_check_lbt(cs, &local_err);
     if (ret < 0) {
         error_report_err(local_err);
+        return ret;
     }
 
     ret = kvm_cpu_check_pmu(cs, &local_err);
     if (ret < 0) {
         error_report_err(local_err);
+        return ret;
     }
 
     ret = kvm_cpu_check_pv_features(cs, &local_err);
     if (ret < 0) {
         error_report_err(local_err);
+        return ret;
     }
 
-    return ret;
+    return 0;
 }
 
 static bool loongarch_get_lbt(Object *obj, Error **errp)

target/loongarch/tcg/tlb_helper.c

@@ -543,7 +543,7 @@ target_ulong helper_lddir(CPULoongArchState *env, target_ulong base,
                           target_ulong level, uint32_t mem_idx)
 {
     CPUState *cs = env_cpu(env);
-    target_ulong badvaddr, index, phys, ret;
+    target_ulong badvaddr, index, phys;
     uint64_t dir_base, dir_width;
 
     if (unlikely((level == 0) || (level > 4))) {
@@ -571,8 +571,7 @@ target_ulong helper_lddir(CPULoongArchState *env, target_ulong base,
     get_dir_base_width(env, &dir_base, &dir_width, level);
     index = (badvaddr >> dir_base) & ((1 << dir_width) - 1);
     phys = base | index << 3;
-    ret = ldq_phys(cs->as, phys) & TARGET_PHYS_MASK;
-    return ret;
+    return ldq_phys(cs->as, phys) & TARGET_PHYS_MASK;
 }
 
 void helper_ldpte(CPULoongArchState *env, target_ulong base, target_ulong odd,