qos: Disable irq notifier when qos request is removed

When a qos request is added with IRQ affinity, irq notifier for that irq is added and without disabling the irq notifier if the irq is free it throws a warning. So disable irq notifier when the qos request is removed. Change-Id: I50faa4ecbe1b632c0f0f203ca52faf18753c33d4 Signed-off-by: Srinivas Rao L <[email protected]> Signed-off-by: Lina Iyer <[email protected]> [fix checkpatch issues] Signed-off-by: celtare21 <[email protected]>
celtare21 · Dec 16, 2022 · 0c01510 · 0c01510
1 parent f21ab7f
commit 0c01510
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
@@ -512,6 +512,16 @@ void cpu_latency_qos_remove_request(struct pm_qos_request *req)
 		return;
 	}
 
+#ifdef CONFIG_SMP
+	if (req->type == PM_QOS_REQ_AFFINE_IRQ) {
+		int ret = 0;
+		/* Get the current affinity */
+		ret = irq_set_affinity_notifier(req->irq, NULL);
+		if (ret)
+			WARN(1, "IRQ affinity notify set failed\n");
+	}
+#endif
+
 	trace_pm_qos_remove_request(PM_QOS_DEFAULT_VALUE);
 
 	cpu_latency_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);