commit 451c6905899da0cdcd23bffef93504f93fd48d5e
author Greg Kurz <groug@kaod.org> Mon Sep 14 14:35:02 2020 +0200
committer David Gibson <david@gibson.dropbear.id.au> Fri Oct 09 10:15:06 2020 +1100
tree 3618e54756735c25635e503fb5b06475097ec7e6
parent a5af92e2e9377f753d3df6b2e050b3db6f64fb7d

spapr: Add a return value to spapr_nvdimm_validate()

As recommended in "qapi/error.h", return true on success and false on
failure. This allows to reduce error propagation overhead in the callers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200914123505.612812-13-groug@kaod.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

hw/ppc/spapr_nvdimm.c

diff --git a/hw/ppc/spapr_nvdimm.c b/hw/ppc/spapr_nvdimm.c
index c06f903..b3a489e 100644
--- a/hw/ppc/spapr_nvdimm.c
+++ b/hw/ppc/spapr_nvdimm.c
@@ -33,7 +33,7 @@
 #include "sysemu/sysemu.h"
 #include "hw/ppc/spapr_numa.h"
 
-void spapr_nvdimm_validate(HotplugHandler *hotplug_dev, NVDIMMDevice *nvdimm,
+bool spapr_nvdimm_validate(HotplugHandler *hotplug_dev, NVDIMMDevice *nvdimm,
                            uint64_t size, Error **errp)
 {
     const MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
@@ -45,7 +45,7 @@
 
     if (!mc->nvdimm_supported) {
         error_setg(errp, "NVDIMM hotplug not supported for this machine");
-        return;
+        return false;
     }
 
     /*
@@ -59,20 +59,20 @@
      */
     if (!ms->nvdimms_state->is_enabled && nvdimm_opt) {
         error_setg(errp, "nvdimm device found but 'nvdimm=off' was set");
-        return;
+        return false;
     }
 
     if (object_property_get_int(OBJECT(nvdimm), NVDIMM_LABEL_SIZE_PROP,
                                 &error_abort) == 0) {
         error_setg(errp, "PAPR requires NVDIMM devices to have label-size set");
-        return;
+        return false;
     }
 
     if (size % SPAPR_MINIMUM_SCM_BLOCK_SIZE) {
         error_setg(errp, "PAPR requires NVDIMM memory size (excluding label)"
                    " to be a multiple of %" PRIu64 "MB",
                    SPAPR_MINIMUM_SCM_BLOCK_SIZE / MiB);
-        return;
+        return false;
     }
 
     uuidstr = object_property_get_str(OBJECT(nvdimm), NVDIMM_UUID_PROP,
@@ -82,8 +82,10 @@
 
     if (qemu_uuid_is_null(&uuid)) {
         error_setg(errp, "NVDIMM device requires the uuid to be set");
-        return;
+        return false;
     }
+
+    return true;
 }