[PATCH 4/4] hw/cpu: Call object_class_dynamic_cast() once in cpu_class_by_name()

[Philippe Mathieu-Daudé]

Leverage the public CPUClass::cpu_resolving_type field and
call object_class_dynamic_cast() once in cpu_class_by_name().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/core/cpu-common.c   | 3 ++-
 target/alpha/cpu.c     | 3 +--
 target/arm/cpu.c       | 4 +---
 target/avr/cpu.c       | 4 +---
 target/cris/cpu.c      | 4 +---
 target/hexagon/cpu.c   | 4 +---
 target/loongarch/cpu.c | 5 +----
 target/m68k/cpu.c      | 4 +---
 target/openrisc/cpu.c  | 4 +---
 target/riscv/cpu.c     | 4 +---
 target/rx/cpu.c        | 2 +-
 target/tricore/cpu.c   | 4 +---
 target/xtensa/cpu.c    | 4 +---
 13 files changed, 14 insertions(+), 35 deletions(-)

diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c
index 2d24261a6a..f4a2ccebea 100644
--- a/hw/core/cpu-common.c
+++ b/hw/core/cpu-common.c
@@ -157,7 +157,8 @@ ObjectClass *cpu_class_by_name(const char *typename, const 
char *cpu_model)
     cc = CPU_CLASS(oc);
     assert(cc->cpu_resolving_type && cc->class_by_name);
     oc = cc->class_by_name(cpu_model);
-    if (oc == NULL || object_class_is_abstract(oc)) {
+    if (oc == NULL || object_class_is_abstract(oc)
+                   || !object_class_dynamic_cast(oc, cc->cpu_resolving_type)) {
         return NULL;
     }
     return oc;
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index 0ddea8004c..b184fcc123 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -126,8 +126,7 @@ static ObjectClass *alpha_cpu_class_by_name(const char 
*cpu_model)
     int i;
 
     oc = object_class_by_name(cpu_model);
-    if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
-        !object_class_is_abstract(oc)) {
+    if (oc != NULL && !object_class_is_abstract(oc)) {
         return oc;
     }
 
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 9e51bde170..d29040cd8c 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2300,9 +2300,7 @@ static ObjectClass *arm_cpu_class_by_name(const char 
*cpu_model)
     oc = object_class_by_name(typename);
     g_strfreev(cpuname);
     g_free(typename);
-    if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index f6004169ac..53735ff1dd 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -159,9 +159,7 @@ static ObjectClass *avr_cpu_class_by_name(const char 
*cpu_model)
     ObjectClass *oc;
 
     oc = object_class_by_name(cpu_model);
-    if (object_class_dynamic_cast(oc, TYPE_AVR_CPU) == NULL) {
-        oc = NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/cris/cpu.c b/target/cris/cpu.c
index adde4f599d..b307d0b9db 100644
--- a/target/cris/cpu.c
+++ b/target/cris/cpu.c
@@ -95,9 +95,7 @@ static ObjectClass *cris_cpu_class_by_name(const char 
*cpu_model)
     typename = g_strdup_printf(CRIS_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_CRIS_CPU)) {
-        oc = NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 2d4fed838d..4b8d63c4a7 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -63,9 +63,7 @@ static ObjectClass *hexagon_cpu_class_by_name(const char 
*cpu_model)
     oc = object_class_by_name(typename);
     g_strfreev(cpuname);
     g_free(typename);
-    if (!oc || !object_class_dynamic_cast(oc, TYPE_HEXAGON_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index 189dfd32d1..1eb2c579eb 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -646,10 +646,7 @@ static ObjectClass *loongarch_cpu_class_by_name(const char 
*cpu_model)
         }
     }
 
-    if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)) {
-        return oc;
-    }
-    return NULL;
+    return oc;
 }
 
 void loongarch_cpu_dump_state(CPUState *cs, FILE *f, int flags)
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index bd7bb103d7..e8b86c80f1 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -111,9 +111,7 @@ static ObjectClass *m68k_cpu_class_by_name(const char 
*cpu_model)
     typename = g_strdup_printf(M68K_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc != NULL && object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index 5e1e0576e0..7aac9105bd 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -168,9 +168,7 @@ static ObjectClass *openrisc_cpu_class_by_name(const char 
*cpu_model)
     typename = g_strdup_printf(OPENRISC_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index e8f04ef82b..0170e288e7 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -619,9 +619,7 @@ static ObjectClass *riscv_cpu_class_by_name(const char 
*cpu_model)
     oc = object_class_by_name(typename);
     g_strfreev(cpuname);
     g_free(typename);
-    if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 2a6df418a8..879d4fcdef 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -111,7 +111,7 @@ static ObjectClass *rx_cpu_class_by_name(const char 
*cpu_model)
     char *typename;
 
     oc = object_class_by_name(cpu_model);
-    if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL) {
+    if (oc != NULL) {
         return oc;
     }
     typename = g_strdup_printf(RX_CPU_TYPE_NAME("%s"), cpu_model);
diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c
index ffe5158786..f65b8761b0 100644
--- a/target/tricore/cpu.c
+++ b/target/tricore/cpu.c
@@ -140,9 +140,7 @@ static ObjectClass *tricore_cpu_class_by_name(const char 
*cpu_model)
     typename = g_strdup_printf(TRICORE_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index 13bed05d0c..6d96e5ab27 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -141,9 +141,7 @@ static ObjectClass *xtensa_cpu_class_by_name(const char 
*cpu_model)
     typename = g_strdup_printf(XTENSA_CPU_TYPE_NAME("%s"), cpu_model);
     oc = object_class_by_name(typename);
     g_free(typename);
-    if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU)) {
-        return NULL;
-    }
+
     return oc;
 }
 
-- 
2.41.0