[PATCH 15/31] conf: cpu: Remove NULL check from virCPUDefCopyWithoutModel

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Make all callers always pass a valid pointer which in turn allows us to
remove return value check from the callers.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/conf/cpu_conf.c     |  7 +++----
 src/conf/cpu_conf.h     |  3 ++-
 src/cpu/cpu_arm.c       |  5 +----
 src/cpu/cpu_s390.c      |  5 +----
 src/cpu/cpu_x86.c       | 13 ++++---------
 src/qemu/qemu_domain.c  |  6 ------
 src/qemu/qemu_driver.c  |  3 +--
 src/qemu/qemu_process.c |  3 +--
 8 files changed, 13 insertions(+), 32 deletions(-)

diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c
index 1227db1201..3b824e85d2 100644
--- a/src/conf/cpu_conf.c
+++ b/src/conf/cpu_conf.c
@@ -233,9 +233,6 @@ virCPUDefCopyWithoutModel(const virCPUDef *cpu)
 {
     g_autoptr(virCPUDef) copy = NULL;

-    if (!cpu)
-        return NULL;
-
     copy = virCPUDefNew();
     copy->type = cpu->type;
     copy->mode = cpu->mode;
@@ -276,9 +273,11 @@ virCPUDefCopy(const virCPUDef *cpu)
 {
     g_autoptr(virCPUDef) copy = NULL;

-    if (!(copy = virCPUDefCopyWithoutModel(cpu)))
+    if (!cpu)
         return NULL;

+    copy = virCPUDefCopyWithoutModel(cpu);
+
     virCPUDefCopyModel(copy, cpu, false);

     return g_steal_pointer(&copy);
diff --git a/src/conf/cpu_conf.h b/src/conf/cpu_conf.h
index 5d69b4d2e0..560b597777 100644
--- a/src/conf/cpu_conf.h
+++ b/src/conf/cpu_conf.h
@@ -204,7 +204,8 @@ virCPUDef *
 virCPUDefCopy(const virCPUDef *cpu);

 virCPUDef *
-virCPUDefCopyWithoutModel(const virCPUDef *cpu);
+virCPUDefCopyWithoutModel(const virCPUDef *cpu)
+    ATTRIBUTE_NONNULL(1);

 int
 virCPUDefParseXMLString(const char *xml,
diff --git a/src/cpu/cpu_arm.c b/src/cpu/cpu_arm.c
index a890ed6ba3..8e562bd7a3 100644
--- a/src/cpu/cpu_arm.c
+++ b/src/cpu/cpu_arm.c
@@ -450,7 +450,7 @@ virCPUarmUpdate(virCPUDef *guest,
                 const virCPUDef *host,
                 bool relative)
 {
-    g_autoptr(virCPUDef) updated = NULL;
+    g_autoptr(virCPUDef) updated = virCPUDefCopyWithoutModel(guest);

     if (!relative || guest->mode != VIR_CPU_MODE_HOST_MODEL)
         return 0;
@@ -461,9 +461,6 @@ virCPUarmUpdate(virCPUDef *guest,
         return -1;
     }

-    if (!(updated = virCPUDefCopyWithoutModel(guest)))
-        return -1;
-
     updated->mode = VIR_CPU_MODE_CUSTOM;
     virCPUDefCopyModel(updated, host, true);

diff --git a/src/cpu/cpu_s390.c b/src/cpu/cpu_s390.c
index 0f3b5c6820..1de5251974 100644
--- a/src/cpu/cpu_s390.c
+++ b/src/cpu/cpu_s390.c
@@ -44,7 +44,7 @@ virCPUs390Update(virCPUDef *guest,
                  const virCPUDef *host,
                  bool relative)
 {
-    g_autoptr(virCPUDef) updated = NULL;
+    g_autoptr(virCPUDef) updated = virCPUDefCopyWithoutModel(guest);
     size_t i;

     if (!relative)
@@ -68,9 +68,6 @@ virCPUs390Update(virCPUDef *guest,
         return -1;
     }

-    if (!(updated = virCPUDefCopyWithoutModel(guest)))
-        return -1;
-
     updated->mode = VIR_CPU_MODE_CUSTOM;
     virCPUDefCopyModel(updated, host, true);

diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index 2fede8e5fa..6560b7a502 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -2935,12 +2935,9 @@ static int
 x86UpdateHostModel(virCPUDef *guest,
                    const virCPUDef *host)
 {
-    g_autoptr(virCPUDef) updated = NULL;
+    g_autoptr(virCPUDef) updated = virCPUDefCopyWithoutModel(host);
     size_t i;

-    if (!(updated = virCPUDefCopyWithoutModel(host)))
-        return -1;
-
     updated->type = VIR_CPU_TYPE_GUEST;
     updated->mode = VIR_CPU_MODE_CUSTOM;
     virCPUDefCopyModel(updated, host, true);
@@ -3169,7 +3166,7 @@ static int
 virCPUx86Translate(virCPUDef *cpu,
                    virDomainCapsCPUModels *models)
 {
-    g_autoptr(virCPUDef) translated = NULL;
+    g_autoptr(virCPUDef) translated = virCPUDefCopyWithoutModel(cpu);
     virCPUx86Map *map;
     g_autoptr(virCPUx86Model) model = NULL;
     size_t i;
@@ -3191,9 +3188,6 @@ virCPUx86Translate(virCPUDef *cpu,
             return -1;
     }

-    if (!(translated = virCPUDefCopyWithoutModel(cpu)))
-        return -1;
-
     if (x86Decode(translated, &model->data, models, NULL, false) < 0)
         return -1;

@@ -3280,9 +3274,10 @@ virCPUx86CopyMigratable(virCPUDef *cpu)
     if (!(map = virCPUx86GetMap()))
         return NULL;

-    if (!(copy = virCPUDefCopyWithoutModel(cpu)))
+    if (!cpu)
         return NULL;

+    copy = virCPUDefCopyWithoutModel(cpu);
     virCPUDefCopyModelFilter(copy, cpu, false, x86FeatureFilterMigratable, map);

     return g_steal_pointer(&copy);
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 9791fa1dca..707fa92cf4 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -10778,9 +10778,6 @@ qemuDomainFixupCPUs(virDomainObj *vm,
     if (virCPUDefFindFeature(vm->def->cpu, "cmt")) {
         g_autoptr(virCPUDef) fixedCPU = virCPUDefCopyWithoutModel(vm->def->cpu);

-        if (!fixedCPU)
-            return -1;
-
         virCPUDefCopyModelFilter(fixedCPU, vm->def->cpu, false,
                                  virQEMUCapsCPUFilterFeatures, &arch);

@@ -10791,9 +10788,6 @@ qemuDomainFixupCPUs(virDomainObj *vm,
     if (virCPUDefFindFeature(*origCPU, "cmt")) {
         g_autoptr(virCPUDef) fixedOrig = virCPUDefCopyWithoutModel(*origCPU);

-        if (!fixedOrig)
-            return -1;
-
         virCPUDefCopyModelFilter(fixedOrig, *origCPU, false,
                                  virQEMUCapsCPUFilterFeatures, &arch);

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 146318c6db..e64a061843 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12193,8 +12193,7 @@ qemuConnectBaselineCPU(virConnectPtr conn G_GNUC_UNUSED,
                                     !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
         goto cleanup;

-    if (!(cpu = virCPUDefCopyWithoutModel(baseline)))
-        goto cleanup;
+    cpu = virCPUDefCopyWithoutModel(baseline);

     virCPUDefCopyModelFilter(cpu, baseline, false, virQEMUCapsCPUFilterFeatures,
                              &cpus[0]->arch);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 27973a2e03..eb1797688c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8853,8 +8853,7 @@ qemuProcessRefreshCPU(virQEMUDriver *driver,
         if (!(hostmig = virCPUCopyMigratable(host->arch, host)))
             return -1;

-        if (!(cpu = virCPUDefCopyWithoutModel(hostmig)))
-            return -1;
+        cpu = virCPUDefCopyWithoutModel(hostmig);

         virCPUDefCopyModelFilter(cpu, hostmig, false, virQEMUCapsCPUFilterFeatures,
                                  &host->arch);
-- 
2.39.2




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