[v4,06/28] cpu: Directly use get_memory_mapping() fallback handlers in place

Commit Message

Philippe Mathieu-Daudé March 3, 2021, 9:46 p.m. UTC

No code uses CPUClass::get_memory_mapping() outside of hw/core/cpu.c:

  $ git grep -F -- '->get_memory_mapping'
  hw/core/cpu.c:87:    cc->get_memory_mapping(cpu, list, errp);
  hw/core/cpu.c:439:    k->get_memory_mapping = cpu_common_get_memory_mapping;
  target/i386/cpu.c:7422:    cc->get_memory_mapping = x86_cpu_get_memory_mapping;

Check the handler presence in place and remove the common fallback code.

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
---
 hw/core/cpu.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

Patch

diff --git a/hw/core/cpu.c b/hw/core/cpu.c
index 1de00bbb474..5abf8bed2e4 100644
--- a/hw/core/cpu.c
+++ b/hw/core/cpu.c
@@ -83,13 +83,11 @@  void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
 
-    cc->get_memory_mapping(cpu, list, errp);
-}
+    if (cc->get_memory_mapping) {
+        cc->get_memory_mapping(cpu, list, errp);
+        return;
+    }
 
-static void cpu_common_get_memory_mapping(CPUState *cpu,
-                                          MemoryMappingList *list,
-                                          Error **errp)
-{
     error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
 }
 
@@ -419,7 +417,6 @@  static void cpu_class_init(ObjectClass *klass, void *data)
     k->parse_features = cpu_common_parse_features;
     k->get_arch_id = cpu_common_get_arch_id;
     k->has_work = cpu_common_has_work;
-    k->get_memory_mapping = cpu_common_get_memory_mapping;
     k->gdb_read_register = cpu_common_gdb_read_register;
     k->gdb_write_register = cpu_common_gdb_write_register;
     set_bit(DEVICE_CATEGORY_CPU, dc->categories);