linux-kernel - [tip: irq/cleanups] iio: Use IRQF_NO

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Message-ID: <176996601825.2495410.13199624263948391923.tip-bot2@tip-bot2>
Date: Sun, 01 Feb 2026 17:13:38 -0000
From: "tip-bot2 for Sebastian Andrzej Siewior" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 Thomas Gleixner <tglx@...nel.org>,
 Andy Shevchenko <andriy.shevchenko@...el.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: irq/cleanups] iio: Use IRQF_NO_THREAD

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

Commit-ID:     ff8fd3753999718f1305b16c438f50f10cbd375a
Gitweb:        https://git.kernel.org/tip/ff8fd3753999718f1305b16c438f50f10cbd375a
Author:        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:36 +01:00
Committer:     Thomas Gleixner <tglx@...nel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:17 +01:00

iio: Use IRQF_NO_THREAD

The interrupt handler iio_trigger_generic_data_rdy_poll() will invoke other
interrupt handlers and this os supposed to happen from within the hard
interrupt.

Use IRQF_NO_THREAD to forbid forced-threading.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...nel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...el.com>
Link: https://patch.msgid.link/20260128095540.863589-17-bigeasy@linutronix.de
---
 drivers/iio/accel/bma180.c        | 5 +++--
 drivers/iio/adc/ad7766.c          | 2 +-
 drivers/iio/gyro/itg3200_buffer.c | 8 +++-----
 drivers/iio/light/si1145.c        | 2 +-
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 8925f52..7bc6761 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -986,8 +986,9 @@ static int bma180_probe(struct i2c_client *client)
 		}
 
 		ret = devm_request_irq(dev, client->irq,
-			iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING,
-			"bma180_event", data->trig);
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       "bma180_event", data->trig);
 		if (ret) {
 			dev_err(dev, "unable to request IRQ\n");
 			goto err_trigger_free;
diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c
index 4d57038..1e6bfe8 100644
--- a/drivers/iio/adc/ad7766.c
+++ b/drivers/iio/adc/ad7766.c
@@ -261,7 +261,7 @@ static int ad7766_probe(struct spi_device *spi)
 		 * don't enable the interrupt to avoid extra load on the system
 		 */
 		ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq,
-				       IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN,
+				       IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN | IRQF_NO_THREAD,
 				       dev_name(&spi->dev),
 				       ad7766->trig);
 		if (ret < 0)
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index a624400..cf97adf 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -118,11 +118,9 @@ int itg3200_probe_trigger(struct iio_dev *indio_dev)
 	if (!st->trig)
 		return -ENOMEM;
 
-	ret = request_irq(st->i2c->irq,
-			  &iio_trigger_generic_data_rdy_poll,
-			  IRQF_TRIGGER_RISING,
-			  "itg3200_data_rdy",
-			  st->trig);
+	ret = request_irq(st->i2c->irq, &iio_trigger_generic_data_rdy_poll,
+			  IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+			  "itg3200_data_rdy", st->trig);
 	if (ret)
 		goto error_free_trig;
 
diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index f8eb251..ef0abc4 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -1248,7 +1248,7 @@ static int si1145_probe_trigger(struct iio_dev *indio_dev)
 
 	ret = devm_request_irq(&client->dev, client->irq,
 			  iio_trigger_generic_data_rdy_poll,
-			  IRQF_TRIGGER_FALLING,
+			  IRQF_TRIGGER_FALLING | IRQF_NO_THREAD,
 			  "si1145_irq",
 			  trig);
 	if (ret < 0) {