diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0576ce0e0af2..3a798ec36824 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2484,8 +2484,6 @@ static u32 __compute_runnable_contrib(u64 n)
 	return contrib + runnable_avg_yN_sum[n];
 }
 
-unsigned long __weak arch_scale_freq_capacity(struct sched_domain *sd, int cpu);
-
 /*
  * We can represent the historical contribution to runnable average as the
  * coefficients of a geometric series.  To do this we sub-divide our runnable
@@ -6010,16 +6008,6 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
 	return load_idx;
 }
 
-static unsigned long default_scale_capacity(struct sched_domain *sd, int cpu)
-{
-	return SCHED_CAPACITY_SCALE;
-}
-
-unsigned long __weak arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
-{
-	return default_scale_capacity(sd, cpu);
-}
-
 static unsigned long default_scale_cpu_capacity(struct sched_domain *sd, int cpu)
 {
 	if ((sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1))
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index dd532c558ad4..91c6736d2522 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1387,7 +1387,14 @@ static inline int hrtick_enabled(struct rq *rq)
 
 #ifdef CONFIG_SMP
 extern void sched_avg_update(struct rq *rq);
-extern unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu);
+
+#ifndef arch_scale_freq_capacity
+static __always_inline
+unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
+{
+	return SCHED_CAPACITY_SCALE;
+}
+#endif
 
 static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
 {