From: Igor Mammedov <imamm...@redhat.com>

both do nothing as for the first all callers
   parse_cpu_model() and qmp_query_cpu_model_()
should provide non NULL value, so just abort if it's not so.

While at it drop cpu_common_class_by_name() which is not need
any more as every target has CPUClass::class_by_name callback
by now, though abort in case a new arch will forget to define one.

Signed-off-by: Igor Mammedov <imamm...@redhat.com>
Message-Id: <1518013857-4372-1-git-send-email-imamm...@redhat.com>
Reviewed-by: Eduardo Habkost <ehabk...@redhat.com>
Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
---
 qom/cpu.c         | 14 ++------------
 target/i386/cpu.c |  8 +-------
 2 files changed, 3 insertions(+), 19 deletions(-)

diff --git a/qom/cpu.c b/qom/cpu.c
index 60292dfde9..92599f3541 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -286,21 +286,12 @@ static bool cpu_common_has_work(CPUState *cs)
 
 ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model)
 {
-    CPUClass *cc;
-
-    if (!cpu_model) {
-        return NULL;
-    }
-    cc = CPU_CLASS(object_class_by_name(typename));
+    CPUClass *cc = CPU_CLASS(object_class_by_name(typename));
 
+    assert(cpu_model && cc->class_by_name);
     return cc->class_by_name(cpu_model);
 }
 
-static ObjectClass *cpu_common_class_by_name(const char *cpu_model)
-{
-    return NULL;
-}
-
 static void cpu_common_parse_features(const char *typename, char *features,
                                       Error **errp)
 {
@@ -418,7 +409,6 @@ static void cpu_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     CPUClass *k = CPU_CLASS(klass);
 
-    k->class_by_name = cpu_common_class_by_name;
     k->parse_features = cpu_common_parse_features;
     k->reset = cpu_common_reset;
     k->get_arch_id = cpu_common_get_arch_id;
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index b5e431e769..acc853c871 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -741,13 +741,7 @@ static char *x86_cpu_type_name(const char *model_name)
 static ObjectClass *x86_cpu_class_by_name(const char *cpu_model)
 {
     ObjectClass *oc;
-    char *typename;
-
-    if (cpu_model == NULL) {
-        return NULL;
-    }
-
-    typename = x86_cpu_type_name(cpu_model);
+    char *typename = x86_cpu_type_name(cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
     return oc;
-- 
2.14.3


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