linux-kernel - [PATCH 02/21] platform/x86: int0002: Remove IRQF_ONESHOT from request

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Message-ID: <20260123113708.416727-3-bigeasy@linutronix.de>
Date: Fri, 23 Jan 2026 12:36:48 +0100
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: linux-kernel@...r.kernel.org
Cc: linux-rt-devel@...ts.linux.dev,
	Thomas Gleixner <tglx@...nel.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Hans de Goede <hansg@...nel.org>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	platform-driver-x86@...r.kernel.org,
	"Borah, Chaitanya Kumar" <chaitanya.kumar.borah@...el.com>
Subject: [PATCH 02/21] platform/x86: int0002: Remove IRQF_ONESHOT from request_irq()

Passing IRQF_ONESHOT ensures that the interrupt source is masked until
the secondary (threaded) handler is done. If only a primary handler is
used then the flag makes no sense because the interrupt can not fire
(again) while its handler is running.
The flag also disallows force-threading of the primary handler and the
irq-core will warn about this.

The flag was added to match the flag on the shared handler which uses a
threaded handler and therefore IRQF_ONESHOT. This is no longer needed
because devm_request_irq() now passes IRQF_COND_ONESHOT for this case.

Revert adding IRQF_ONESHOT to irqflags.

Cc: Hans de Goede <hansg@...nel.org>
Cc: "Ilpo Järvinen" <ilpo.jarvinen@...ux.intel.com>
Cc: platform-driver-x86@...r.kernel.org
Reported-by: "Borah, Chaitanya Kumar" <chaitanya.kumar.borah@...el.com>
Closes: https://lore.kernel.org/all/555f1c56-0f74-41bf-8bd2-6217e0aab0c6@intel.com
Fixes: 8f812373d1958 ("platform/x86: intel: int0002_vgpio: Pass IRQF_ONESHOT to request_irq()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---
 drivers/platform/x86/intel/int0002_vgpio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/intel/int0002_vgpio.c b/drivers/platform/x86/intel/int0002_vgpio.c
index 6f5629dc3f8db..562e880256436 100644
--- a/drivers/platform/x86/intel/int0002_vgpio.c
+++ b/drivers/platform/x86/intel/int0002_vgpio.c
@@ -206,8 +206,8 @@ static int int0002_probe(struct platform_device *pdev)
 	 * FIXME: augment this if we managed to pull handling of shared
 	 * IRQs into gpiolib.
 	 */
-	ret = devm_request_irq(dev, irq, int0002_irq,
-			       IRQF_ONESHOT | IRQF_SHARED, "INT0002", chip);
+	ret = devm_request_irq(dev, irq, int0002_irq, IRQF_SHARED, "INT0002",
+			       chip);
 	if (ret) {
 		dev_err(dev, "Error requesting IRQ %d: %d\n", irq, ret);
 		return ret;
-- 
2.51.0