linux-kernel - [tip: irq/urgent] genirq/chip: Add buslock back in to irq_set

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Message-ID: <176129909186.2601451.9949829768587454748.tip-bot2@tip-bot2>
Date: Fri, 24 Oct 2025 09:44:51 -0000
From: "tip-bot2 for Charles Keepax" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Charles Keepax <ckeepax@...nsource.cirrus.com>,
 Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
 linux-kernel@...r.kernel.org, maz@...nel.org
Subject:
 [tip: irq/urgent] genirq/chip: Add buslock back in to irq_set_handler()

The following commit has been merged into the irq/urgent branch of tip:

Commit-ID:     5d7e45dd670e42df4836afeaa9baf9d41ca4b434
Gitweb:        https://git.kernel.org/tip/5d7e45dd670e42df4836afeaa9baf9d41ca4b434
Author:        Charles Keepax <ckeepax@...nsource.cirrus.com>
AuthorDate:    Thu, 23 Oct 2025 16:48:59 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Fri, 24 Oct 2025 11:38:39 +02:00

genirq/chip: Add buslock back in to irq_set_handler()

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: 5cd05f3e2315 ("genirq/chip: Rework irq_set_handler() variants")
Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://patch.msgid.link/20251023154901.1333755-2-ckeepax@opensource.cirrus.com
---
 kernel/irq/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 3ffa0d8..d1917b2 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -1030,7 +1030,7 @@ __irq_do_set_handler(struct irq_desc *desc, irq_flow_handler_t handle,
 void __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 		       const char *name)
 {
-	scoped_irqdesc_get_and_lock(irq, 0)
+	scoped_irqdesc_get_and_buslock(irq, 0)
 		__irq_do_set_handler(scoped_irqdesc, handle, is_chained, name);
 }
 EXPORT_SYMBOL_GPL(__irq_set_handler);