linux-kernel - [PATCH 2/3] genirq/manage: Add buslock back in to __disable_irq

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Message-ID: <20251023154901.1333755-3-ckeepax@opensource.cirrus.com>
Date: Thu, 23 Oct 2025 16:49:00 +0100
From: Charles Keepax <ckeepax@...nsource.cirrus.com>
To: tglx@...utronix.de
Cc: peterz@...radead.org, broonie@...nel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] genirq/manage: Add buslock back in to __disable_irq_nosync()

The locking was changed from a buslock to a plain lock, but the patch
description states there was no functional change. Assuming this was
accidental so reverting to using the buslock.

Fixes: 1b7444446724 ("genirq/manage: Rework __disable_irq_nosync()")
Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
---
 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 c94837382037e..7d68fb5dc2428 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -659,7 +659,7 @@ void __disable_irq(struct irq_desc *desc)
 
 static int __disable_irq_nosync(unsigned int irq)
 {
-	scoped_irqdesc_get_and_lock(irq, IRQ_GET_DESC_CHECK_GLOBAL) {
+	scoped_irqdesc_get_and_buslock(irq, IRQ_GET_DESC_CHECK_GLOBAL) {
 		__disable_irq(scoped_irqdesc);
 		return 0;
 	}
-- 
2.47.3