diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index 8300cb219d..9cdce6c6bd 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -490,13 +490,6 @@ static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb,
 /* Base/displacement are at the same locations. */
 #define decode_basedisp_rs decode_basedisp_s
 
-/* helper functions for run_on_cpu() */
-static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
-{
-    S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
-
-    scc->cpu_reset(cs);
-}
 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg)
 {
     cpu_reset(cs);
diff --git a/target/s390x/diag.c b/target/s390x/diag.c
index 10ac845bcd..1847cdb0ca 100644
--- a/target/s390x/diag.c
+++ b/target/s390x/diag.c
@@ -39,6 +39,13 @@ static int modified_clear_reset(S390CPU *cpu)
     return 0;
 }
 
+static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
+{
+    S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
+
+    scc->cpu_reset(cs);
+}
+
 static int load_normal_reset(S390CPU *cpu)
 {
     S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);