diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 47ed31c41d37..68ad687c0656 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -145,7 +145,10 @@ static ssize_t write_irq_affinity(int type, struct file *file,
 	cpumask_var_t new_value;
 	int err;
 
+#ifdef CONFIG_IRQ_SBALANCE
 	return count;
+#endif
+
 	if (!irq_can_set_affinity_usr(irq) || no_irq_affinity)
 		return -EIO;