cpu: remove unnecessary #ifdef CONFIG_TCG

"if (tcg_enabled())" allows elision of the code inside it; we only need
the prototype to exist, so that the code compile even for the --disable-tcg
case.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

cpu.c

@@ -137,12 +137,10 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp)
     if (!accel_cpu_realizefn(cpu, errp)) {
         return;
     }
-#ifdef CONFIG_TCG
     /* NB: errp parameter is unused currently */
     if (tcg_enabled()) {
         tcg_exec_realizefn(cpu, errp);
     }
-#endif /* CONFIG_TCG */
 
 #ifdef CONFIG_USER_ONLY
     assert(qdev_get_vmsd(DEVICE(cpu)) == NULL ||
@@ -169,12 +167,9 @@ void cpu_exec_unrealizefn(CPUState *cpu)
         vmstate_unregister(NULL, &vmstate_cpu_common, cpu);
     }
 #endif
-#ifdef CONFIG_TCG
-    /* NB: errp parameter is unused currently */
     if (tcg_enabled()) {
         tcg_exec_unrealizefn(cpu);
     }
-#endif /* CONFIG_TCG */
 
     cpu_list_remove(cpu);
 }

include/exec/cpu-all.h

@@ -437,12 +437,10 @@ void dump_opcount_info(GString *buf);
 
 #endif /* !CONFIG_USER_ONLY */
 
-#ifdef CONFIG_TCG
 /* accel/tcg/cpu-exec.c */
 int cpu_exec(CPUState *cpu);
 void tcg_exec_realizefn(CPUState *cpu, Error **errp);
 void tcg_exec_unrealizefn(CPUState *cpu);
-#endif /* CONFIG_TCG */
 
 /* Returns: 0 on success, -1 on error */
 int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,