diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ca1cd7459c4a3e60c73de7f4169484b03804cdbc..248ee7e5bebdd2736a48b1d164321e51ae0a924e 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -304,7 +304,7 @@ void notrace restore_interrupts(void)
  * being re-enabled and generally sanitized the lazy irq state,
  * and in the latter case it will leave with interrupts hard
  * disabled and marked as such, so the local_irq_enable() call
- * in cpu_idle() will properly re-enable everything.
+ * in arch_cpu_idle() will properly re-enable everything.
  */
 bool prep_irq_for_idle(void)
 {