linux-kernel - [PATCH] irq/manage: use raw_spinlock_irq in irq_set_affinity

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Message-ID: <20251118012754.61805-1-pilgrimtao@gmail.com>
Date: Tue, 18 Nov 2025 09:27:54 +0800
From: chengkaitao <pilgrimtao@...il.com>
To: tglx@...utronix.de
Cc: linux-kernel@...r.kernel.org,
	Chengkaitao <chengkaitao@...inos.cn>
Subject: [PATCH] irq/manage: use raw_spinlock_irq in irq_set_affinity_notifier

From: Chengkaitao <chengkaitao@...inos.cn>

Since irq_set_affinity_notifier may sleep, there is no disable_irq nesting
scenario, so raw_spinlock_irqsave can be replaced with raw_spinlock_irq.

Signed-off-by: Chengkaitao <chengkaitao@...inos.cn>
---
 kernel/irq/manage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 400856abf672..065040028bda 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -547,7 +547,7 @@ int irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *noti
 		INIT_WORK(&notify->work, irq_affinity_notify);
 	}
 
-	scoped_guard(raw_spinlock_irqsave, &desc->lock) {
+	scoped_guard(raw_spinlock_irq, &desc->lock) {
 		old_notify = desc->affinity_notify;
 		desc->affinity_notify = notify;
 	}
-- 
2.50.1 (Apple Git-155)