diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ca941f1e83a9..916ddc4aac44 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -261,9 +261,16 @@ notrace void arch_local_irq_restore(unsigned long mask)
 	 */
 	irq_happened = get_irq_happened();
 	if (!irq_happened) {
-#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
-		WARN_ON(!(mfmsr() & MSR_EE));
-#endif
+		/*
+		 * FIXME. Here we'd like to be able to do:
+		 *
+		 * #ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
+		 *   WARN_ON(!(mfmsr() & MSR_EE));
+		 * #endif
+		 *
+		 * But currently it hits in a few paths, we should fix those and
+		 * enable the warning.
+		 */
 		return;
 	}