[PATCH v2 00/20] IRQF_ONESHOT clean up

[PATCH v2 00/20] IRQF_ONESHOT clean up

[Sebastian Andrzej Siewior]

There was a bug report about setting IRQF_ONESHOT where it should have
not been set. I looked around for other mistakes in that area. There are
the following categories:

- Using custom primary irq handler doing exactly what  
  irq_default_primary_handler() does

- Not using IRQF_ONESHOT but it looks like it is needed

- Using IRQF_ONESHOT but it looks like it should not have been used

- Using IRQF_ONESHOT but IRQF_NO_THREAD should be used

The outcome varies from harmless to problematic. Some examples:
- Missing IRQF_ONESHOT for a threaded interrupt.
  For level-typed interrupts it is essential to disable the interrupt
  while the thread is running in order to make progress. Missing it
  means the interrupt remains active and the thread has little chance to
  make progress.
  The irq-core will reject such request_irq() invocations but only if
  the primary handler is NULL, not if it is a copy of the default
  handler.

- Using IRQF_ONESHOT for a non-threaded interrupt.
  This makes no sense since the threaded handler is missing. It can
  lead to errors in forced-threaded environments such as PREEMPT_RT
  especially if the handler uses functions which can sleep only on
  PREEMPT_RT.

This series is touching multiple subsystems. Instead of sending many
single patches I decided to make one series. It would be nice if the
individual subsystems could apply the changes individually, there are no
dependencies as far as I can tell (except for int0002 but this is a
different story).

v1…v2: https://lore.kernel.org/all/20260123113708.416727-1-bigeasy@linutronix.de/
  - iio
   - Splitted replacement of ad7766_irq() in its own patch (David
     Lechner)
   - Swapped the ordering of some flags, missing re-idents and a few
     other things to make it look nicer (Andy Shevchenko)
  - picked up tags and dropped applied patches

Sebastian Andrzej Siewior (20):
  genirq: Set IRQF_COND_ONESHOT in devm_request_irq().
  platform/x86: int0002: Remove IRQF_ONESHOT from request_irq()
  iommu/amd: Use core's primary handler and set IRQF_ONESHOT
  mailbox: bcm-ferxrm-mailbox: Use default primary handler
  bus: fsl-mc: Use default primary handler
  Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler
  scsi: efct: Use IRQF_ONESHOT and default primary handler
  ARM: versatile: Remove IRQF_ONESHOT
  char: tpm: cr50: Remove IRQF_ONESHOT
  EDAC/altera: Remove IRQF_ONESHOT
  usb: typec: fusb302: Remove IRQF_ONESHOT
  rtc: amlogic-a4: Remove IRQF_ONESHOT
  thermal/qcom/lmh: Replace IRQF_ONESHOT with IRQF_NO_THREAD
  perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
  mfd: wm8350-core: Use IRQF_ONESHOT
  iio: Use IRQF_NO_THREAD
  iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD
  iio: magnetometer: Remove IRQF_ONESHOT
  iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()
  media: pci: mg4b: Use IRQF_NO_THREAD

 arch/arm/mach-versatile/spc.c              |  4 ++--
 drivers/bluetooth/btintel_pcie.c           |  9 ++-------
 drivers/bus/fsl-mc/dprc-driver.c           | 13 +------------
 drivers/char/tpm/tpm_tis_i2c_cr50.c        |  3 +--
 drivers/char/tpm/tpm_tis_spi_cr50.c        |  2 +-
 drivers/edac/altera_edac.c                 | 11 ++++-------
 drivers/iio/accel/adxl355_core.c           |  5 ++---
 drivers/iio/accel/adxl372.c                |  9 ++++-----
 drivers/iio/accel/bma180.c                 |  5 +++--
 drivers/iio/accel/mxc4005.c                | 11 ++++-------
 drivers/iio/accel/stk8ba50.c               | 11 ++++-------
 drivers/iio/adc/ad4170-4.c                 |  2 +-
 drivers/iio/adc/ad7766.c                   | 10 ++--------
 drivers/iio/adc/ad7768-1.c                 |  5 ++---
 drivers/iio/adc/ad7779.c                   |  2 +-
 drivers/iio/adc/mcp3911.c                  |  2 +-
 drivers/iio/adc/ti-ads131e08.c             |  2 +-
 drivers/iio/chemical/ens160_core.c         |  9 +++------
 drivers/iio/gyro/adxrs290.c                |  2 +-
 drivers/iio/gyro/itg3200_buffer.c          |  8 +++-----
 drivers/iio/health/afe4403.c               |  9 ++++-----
 drivers/iio/health/afe4404.c               |  9 ++++-----
 drivers/iio/light/si1145.c                 |  2 +-
 drivers/iio/magnetometer/ak8975.c          |  2 +-
 drivers/iio/magnetometer/bmc150_magn.c     |  9 +++------
 drivers/iio/pressure/dlhl60d.c             |  7 +++----
 drivers/iio/temperature/tmp006.c           | 10 ++++------
 drivers/iommu/amd/amd_iommu.h              |  1 -
 drivers/iommu/amd/init.c                   | 12 ++++--------
 drivers/iommu/amd/iommu.c                  |  5 -----
 drivers/mailbox/bcm-flexrm-mailbox.c       | 14 ++------------
 drivers/media/pci/mgb4/mgb4_trigger.c      |  2 +-
 drivers/perf/cxl_pmu.c                     |  2 +-
 drivers/platform/x86/intel/int0002_vgpio.c |  4 ++--
 drivers/rtc/rtc-amlogic-a4.c               |  2 +-
 drivers/scsi/elx/efct/efct_driver.c        |  8 +-------
 drivers/thermal/qcom/lmh.c                 |  2 +-
 drivers/usb/typec/tcpm/fusb302.c           |  3 +--
 include/linux/interrupt.h                  |  2 +-
 include/linux/mfd/wm8350/core.h            |  2 +-
 40 files changed, 79 insertions(+), 153 deletions(-)

-- 
2.51.0

[PATCH v2 01/20] genirq: Set IRQF_COND_ONESHOT in devm_request_irq().

[Sebastian Andrzej Siewior]

The flag IRQF_COND_ONESHOT was already force-added to request_irq()
because the ACPI SCI interrupt handler is using the ONESHOT and it
breaks all shared handler.
devm_request_irq() needs the same change since some users, such as
int0002_vgpio, are using this function instead.

Add IRQF_COND_ONESHOT to flags passed to devm_request_irq().

Fixes: c37927a203fa2 ("genirq: Set IRQF_COND_ONESHOT in request_irq()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 include/linux/interrupt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 266f2b39213a0..b2bb878abd113 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -228,7 +228,7 @@ static inline int __must_check
 devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler,
 		 unsigned long irqflags, const char *devname, void *dev_id)
 {
-	return devm_request_threaded_irq(dev, irq, handler, NULL, irqflags,
+	return devm_request_threaded_irq(dev, irq, handler, NULL, irqflags | IRQF_COND_ONESHOT,
 					 devname, dev_id);
 }
 
-- 
2.51.0

[PATCH v2 02/20] platform/x86: int0002: Remove IRQF_ONESHOT from request_irq()

[Sebastian Andrzej Siewior]

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.

Reported-by: Borah, Chaitanya Kumar <chaitanya.kumar.borah@intel.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()")
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Hans de Goede <hansg@kernel.org>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: platform-driver-x86@vger.kernel.org
---
 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

[PATCH v2 03/20] iommu/amd: Use core's primary handler and set IRQF_ONESHOT

[Sebastian Andrzej Siewior]

request_threaded_irq() is invoked with a primary and a secondary handler
and no flags are passed. The primary handler is the same as
irq_default_primary_handler() so there is no need to have an identical
copy.
The lack of the IRQF_ONESHOT can be dangerous because the interrupt
source is not masked while the threaded handler is active. This means,
especially on LEVEL typed interrupt lines, the interrupt can fire again
before the threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 72fe00f01f9a3 ("x86/amd-iommu: Use threaded interupt handler")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: iommu@lists.linux.dev
---
 drivers/iommu/amd/amd_iommu.h |  1 -
 drivers/iommu/amd/init.c      | 12 ++++--------
 drivers/iommu/amd/iommu.c     |  5 -----
 3 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index b742ef1adb352..df1c238dc8885 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -15,7 +15,6 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_evtlog(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_pprlog(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_galog(int irq, void *data);
-irqreturn_t amd_iommu_int_handler(int irq, void *data);
 void amd_iommu_restart_log(struct amd_iommu *iommu, const char *evt_type,
 			   u8 cntrl_intr, u8 cntrl_log,
 			   u32 status_run_mask, u32 status_overflow_mask);
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 384c90b4f90a0..62a7a718acf8f 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -2356,12 +2356,8 @@ static int iommu_setup_msi(struct amd_iommu *iommu)
 	if (r)
 		return r;
 
-	r = request_threaded_irq(iommu->dev->irq,
-				 amd_iommu_int_handler,
-				 amd_iommu_int_thread,
-				 0, "AMD-Vi",
-				 iommu);
-
+	r = request_threaded_irq(iommu->dev->irq, NULL, amd_iommu_int_thread,
+				 IRQF_ONESHOT, "AMD-Vi", iommu);
 	if (r) {
 		pci_disable_msi(iommu->dev);
 		return r;
@@ -2535,8 +2531,8 @@ static int __iommu_setup_intcapxt(struct amd_iommu *iommu, const char *devname,
 		return irq;
 	}
 
-	ret = request_threaded_irq(irq, amd_iommu_int_handler,
-				   thread_fn, 0, devname, iommu);
+	ret = request_threaded_irq(irq, NULL, thread_fn, IRQF_ONESHOT, devname,
+				   iommu);
 	if (ret) {
 		irq_domain_free_irqs(irq, 1);
 		irq_domain_remove(domain);
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 7c12be1b247f4..0f9045ce93af1 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1151,11 +1151,6 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-irqreturn_t amd_iommu_int_handler(int irq, void *data)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 /****************************************************************************
  *
  * IOMMU command queuing functions
-- 
2.51.0

[PATCH v2 04/20] mailbox: bcm-ferxrm-mailbox: Use default primary handler

[Sebastian Andrzej Siewior]

request_threaded_irq() is invoked with a primary and a secondary handler
and no flags are passed. The primary handler is the same as
irq_default_primary_handler() so there is no need to have an identical
copy.
The lack of the IRQF_ONESHOT can be dangerous because the interrupt
source is not masked while the threaded handler is active. This means,
especially on LEVEL typed interrupt lines, the interrupt can fire again
before the threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Jassi Brar <jassisinghbrar@gmail.com>
---
 drivers/mailbox/bcm-flexrm-mailbox.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index 41f79e51d9e5a..4255fefc3a5a0 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1173,14 +1173,6 @@ static int flexrm_debugfs_stats_show(struct seq_file *file, void *offset)
 
 /* ====== FlexRM interrupt handler ===== */
 
-static irqreturn_t flexrm_irq_event(int irq, void *dev_id)
-{
-	/* We only have MSI for completions so just wakeup IRQ thread */
-	/* Ring related errors will be informed via completion descriptors */
-
-	return IRQ_WAKE_THREAD;
-}
-
 static irqreturn_t flexrm_irq_thread(int irq, void *dev_id)
 {
 	flexrm_process_completions(dev_id);
@@ -1271,10 +1263,8 @@ static int flexrm_startup(struct mbox_chan *chan)
 		ret = -ENODEV;
 		goto fail_free_cmpl_memory;
 	}
-	ret = request_threaded_irq(ring->irq,
-				   flexrm_irq_event,
-				   flexrm_irq_thread,
-				   0, dev_name(ring->mbox->dev), ring);
+	ret = request_threaded_irq(ring->irq, NULL, flexrm_irq_thread,
+				   IRQF_ONESHOT, dev_name(ring->mbox->dev), ring);
 	if (ret) {
 		dev_err(ring->mbox->dev,
 			"failed to request ring%d IRQ\n", ring->num);
-- 
2.51.0

[PATCH v2 05/20] bus: fsl-mc: Use default primary handler

[Sebastian Andrzej Siewior]

There is no added value in dprc_irq0_handler() compared to
irq_default_primary_handler().

Use the default primary interrupt handler by specifying NULL.

Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Ioana Ciornei <ioana.ciornei@nxp.com>
Cc: linuxppc-dev@lists.ozlabs.org
---
 drivers/bus/fsl-mc/dprc-driver.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/bus/fsl-mc/dprc-driver.c b/drivers/bus/fsl-mc/dprc-driver.c
index c63a7e688db6a..db67442addad2 100644
--- a/drivers/bus/fsl-mc/dprc-driver.c
+++ b/drivers/bus/fsl-mc/dprc-driver.c
@@ -380,17 +380,6 @@ int dprc_scan_container(struct fsl_mc_device *mc_bus_dev,
 }
 EXPORT_SYMBOL_GPL(dprc_scan_container);
 
-/**
- * dprc_irq0_handler - Regular ISR for DPRC interrupt 0
- *
- * @irq_num: IRQ number of the interrupt being handled
- * @arg: Pointer to device structure
- */
-static irqreturn_t dprc_irq0_handler(int irq_num, void *arg)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 /**
  * dprc_irq0_handler_thread - Handler thread function for DPRC interrupt 0
  *
@@ -527,7 +516,7 @@ static int register_dprc_irq_handler(struct fsl_mc_device *mc_dev)
 	 */
 	error = devm_request_threaded_irq(&mc_dev->dev,
 					  irq->virq,
-					  dprc_irq0_handler,
+					  NULL,
 					  dprc_irq0_handler_thread,
 					  IRQF_NO_SUSPEND | IRQF_ONESHOT,
 					  dev_name(&mc_dev->dev),
-- 
2.51.0

[PATCH v2 06/20] Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler

[Sebastian Andrzej Siewior]

There is no added value in btintel_pcie_msix_isr() compared to
irq_default_primary_handler().
Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: c2b636b3f788d ("Bluetooth: btintel_pcie: Add support for PCIe transport")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: linux-bluetooth@vger.kernel.org
---
 drivers/bluetooth/btintel_pcie.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c
index 2936b535479f2..704767b334b98 100644
--- a/drivers/bluetooth/btintel_pcie.c
+++ b/drivers/bluetooth/btintel_pcie.c
@@ -1431,11 +1431,6 @@ static void btintel_pcie_msix_rx_handle(struct btintel_pcie_data *data)
 	}
 }
 
-static irqreturn_t btintel_pcie_msix_isr(int irq, void *data)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 static inline bool btintel_pcie_is_rxq_empty(struct btintel_pcie_data *data)
 {
 	return data->ia.cr_hia[BTINTEL_PCIE_RXQ_NUM] == data->ia.cr_tia[BTINTEL_PCIE_RXQ_NUM];
@@ -1537,9 +1532,9 @@ static int btintel_pcie_setup_irq(struct btintel_pcie_data *data)
 
 		err = devm_request_threaded_irq(&data->pdev->dev,
 						msix_entry->vector,
-						btintel_pcie_msix_isr,
+						NULL,
 						btintel_pcie_irq_msix_handler,
-						IRQF_SHARED,
+						IRQF_ONESHOT | IRQF_SHARED,
 						KBUILD_MODNAME,
 						msix_entry);
 		if (err) {
-- 
2.51.0

[PATCH v2 07/20] scsi: efct: Use IRQF_ONESHOT and default primary handler

[Sebastian Andrzej Siewior]

There is no added value in efct_intr_msix() compared to
irq_default_primary_handler().

Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 4df84e8466242 ("scsi: elx: efct: Driver initialization routines")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Ram Vegesna <ram.vegesna@broadcom.com>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Cc: target-devel@vger.kernel.org
---
 drivers/scsi/elx/efct/efct_driver.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/scsi/elx/efct/efct_driver.c b/drivers/scsi/elx/efct/efct_driver.c
index 1bd42f7db1773..528399f725d42 100644
--- a/drivers/scsi/elx/efct/efct_driver.c
+++ b/drivers/scsi/elx/efct/efct_driver.c
@@ -415,12 +415,6 @@ efct_intr_thread(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t
-efct_intr_msix(int irq, void *handle)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 static int
 efct_setup_msix(struct efct *efct, u32 num_intrs)
 {
@@ -450,7 +444,7 @@ efct_setup_msix(struct efct *efct, u32 num_intrs)
 		intr_ctx->index = i;
 
 		rc = request_threaded_irq(pci_irq_vector(efct->pci, i),
-					  efct_intr_msix, efct_intr_thread, 0,
+					  NULL, efct_intr_thread, IRQF_ONESHOT,
 					  EFCT_DRIVER_NAME, intr_ctx);
 		if (rc) {
 			dev_err(&efct->pci->dev,
-- 
2.51.0

[PATCH v2 08/20] ARM: versatile: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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.

Revert adding IRQF_ONESHOT to irqflags.

Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Linus Walleij <linusw@kernel.org>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm/mach-versatile/spc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-versatile/spc.c b/arch/arm/mach-versatile/spc.c
index 812db32448fcd..2d27777a00d33 100644
--- a/arch/arm/mach-versatile/spc.c
+++ b/arch/arm/mach-versatile/spc.c
@@ -459,8 +459,8 @@ int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid, int irq)
 
 	readl_relaxed(info->baseaddr + PWC_STATUS);
 
-	ret = request_irq(irq, ve_spc_irq_handler, IRQF_TRIGGER_HIGH
-				| IRQF_ONESHOT, "vexpress-spc", info);
+	ret = request_irq(irq, ve_spc_irq_handler, IRQF_TRIGGER_HIGH,
+			  "vexpress-spc", info);
 	if (ret) {
 		pr_err(SPCLOG "IRQ %d request failed\n", irq);
 		kfree(info);
-- 
2.51.0

[PATCH v2 09/20] char: tpm: cr50: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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.

Remove IRQF_ONESHOT from irqflags.

Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-integrity@vger.kernel.org
---
 drivers/char/tpm/tpm_tis_i2c_cr50.c | 3 +--
 drivers/char/tpm/tpm_tis_spi_cr50.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_i2c_cr50.c b/drivers/char/tpm/tpm_tis_i2c_cr50.c
index fc6891a0b6936..b48cacacc0664 100644
--- a/drivers/char/tpm/tpm_tis_i2c_cr50.c
+++ b/drivers/char/tpm/tpm_tis_i2c_cr50.c
@@ -749,8 +749,7 @@ static int tpm_cr50_i2c_probe(struct i2c_client *client)
 
 	if (client->irq > 0) {
 		rc = devm_request_irq(dev, client->irq, tpm_cr50_i2c_int_handler,
-				      IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
-				      IRQF_NO_AUTOEN,
+				      IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN,
 				      dev->driver->name, chip);
 		if (rc < 0) {
 			dev_err(dev, "Failed to probe IRQ %d\n", client->irq);
diff --git a/drivers/char/tpm/tpm_tis_spi_cr50.c b/drivers/char/tpm/tpm_tis_spi_cr50.c
index f4937280e9406..32920b4cecfb4 100644
--- a/drivers/char/tpm/tpm_tis_spi_cr50.c
+++ b/drivers/char/tpm/tpm_tis_spi_cr50.c
@@ -287,7 +287,7 @@ int cr50_spi_probe(struct spi_device *spi)
 	if (spi->irq > 0) {
 		ret = devm_request_irq(&spi->dev, spi->irq,
 				       cr50_spi_irq_handler,
-				       IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				       IRQF_TRIGGER_RISING,
 				       "cr50_spi", cr50_phy);
 		if (ret < 0) {
 			if (ret == -EPROBE_DEFER)
-- 
2.51.0

[PATCH v2 10/20] EDAC/altera: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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.

Remove IRQF_ONESHOT from irqflags.

Fixes: a29d64a45eed1 ("EDAC, altera: Add IRQ Flags to disable IRQ while handling")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac@vger.kernel.org
---
 drivers/edac/altera_edac.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 0c5b94e64ea15..4edd2088c2db6 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -1563,8 +1563,7 @@ static int altr_portb_setup(struct altr_edac_device_dev *device)
 		goto err_release_group_1;
 	}
 	rc = devm_request_irq(&altdev->ddev, altdev->sb_irq,
-			      prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      prv->ecc_irq_handler, IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "PortB SBERR IRQ error\n");
@@ -1587,8 +1586,7 @@ static int altr_portb_setup(struct altr_edac_device_dev *device)
 		goto err_release_group_1;
 	}
 	rc = devm_request_irq(&altdev->ddev, altdev->db_irq,
-			      prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      prv->ecc_irq_handler, IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "PortB DBERR IRQ error\n");
@@ -1970,8 +1968,7 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac,
 		goto err_release_group1;
 	}
 	rc = devm_request_irq(edac->dev, altdev->sb_irq, prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
-			      ecc_name, altdev);
+			      IRQF_TRIGGER_HIGH, ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "No SBERR IRQ resource\n");
 		goto err_release_group1;
@@ -1993,7 +1990,7 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac,
 		goto err_release_group1;
 	}
 	rc = devm_request_irq(edac->dev, altdev->db_irq, prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "No DBERR IRQ resource\n");
-- 
2.51.0

[PATCH v2 11/20] usb: typec: fusb302: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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.

Remove IRQF_ONESHOT from irqflags.

Fixes: 309b6341d5570 ("usb: typec: fusb302: Revert incorrect threaded irq fix")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
---
 drivers/usb/typec/tcpm/fusb302.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index 870a71f953f6c..19ff8217818e7 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -1756,8 +1756,7 @@ static int fusb302_probe(struct i2c_client *client)
 	}
 
 	ret = request_irq(chip->gpio_int_n_irq, fusb302_irq_intn,
-			  IRQF_ONESHOT | IRQF_TRIGGER_LOW,
-			  "fsc_interrupt_int_n", chip);
+			  IRQF_TRIGGER_LOW, "fsc_interrupt_int_n", chip);
 	if (ret < 0) {
 		dev_err(dev, "cannot request IRQ for GPIO Int_N, ret=%d", ret);
 		goto tcpm_unregister_port;
-- 
2.51.0

[PATCH v2 12/20] rtc: amlogic-a4: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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.

Remove IRQF_ONESHOT from irqflags.

Fixes: c89ac9182ee29 ("rtc: support for the Amlogic on-chip RTC")
Reviewed-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Yiting Deng <yiting.deng@amlogic.com>
Cc: Xianwei Zhao <xianwei.zhao@amlogic.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-amlogic@lists.infradead.org
Cc: linux-rtc@vger.kernel.org
---
 drivers/rtc/rtc-amlogic-a4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-amlogic-a4.c b/drivers/rtc/rtc-amlogic-a4.c
index 123fb372fc9fe..50938c35af36a 100644
--- a/drivers/rtc/rtc-amlogic-a4.c
+++ b/drivers/rtc/rtc-amlogic-a4.c
@@ -369,7 +369,7 @@ static int aml_rtc_probe(struct platform_device *pdev)
 		return PTR_ERR(rtc->rtc_dev);
 
 	ret = devm_request_irq(dev, rtc->irq, aml_rtc_handler,
-			       IRQF_ONESHOT, "aml-rtc alarm", rtc);
+			       0, "aml-rtc alarm", rtc);
 	if (ret) {
 		dev_err_probe(dev, ret, "IRQ%d request failed, ret = %d\n",
 			      rtc->irq, ret);
-- 
2.51.0

[PATCH v2 13/20] thermal/qcom/lmh: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[Sebastian Andrzej Siewior]

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 intention here was probably not allowing forced-threading.

Replace IRQF_ONESHOT with IRQF_NO_THREAD.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Amit Kucheria <amitk@kernel.org>
Cc: Thara Gopinath <thara.gopinath@gmail.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Lukasz Luba <lukasz.luba@arm.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org
---
 drivers/thermal/qcom/lmh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/lmh.c b/drivers/thermal/qcom/lmh.c
index ddadcfada5136..3d072b7a4a6dd 100644
--- a/drivers/thermal/qcom/lmh.c
+++ b/drivers/thermal/qcom/lmh.c
@@ -220,7 +220,7 @@ static int lmh_probe(struct platform_device *pdev)
 	/* Disable the irq and let cpufreq enable it when ready to handle the interrupt */
 	irq_set_status_flags(lmh_data->irq, IRQ_NOAUTOEN);
 	ret = devm_request_irq(dev, lmh_data->irq, lmh_handle_irq,
-			       IRQF_ONESHOT | IRQF_NO_SUSPEND,
+			       IRQF_NO_THREAD | IRQF_NO_SUSPEND,
 			       "lmh-irq", lmh_data);
 	if (ret) {
 		dev_err(dev, "Error %d registering irq %x\n", ret, lmh_data->irq);
-- 
2.51.0

[PATCH v2 14/20] perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[Sebastian Andrzej Siewior]

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 intention here was probably not allowing forced-threading.

Replace IRQF_ONESHOT with IRQF_NO_THREAD.

Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-cxl@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/perf/cxl_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/cxl_pmu.c b/drivers/perf/cxl_pmu.c
index d094030220bf2..68a54d97d2a8a 100644
--- a/drivers/perf/cxl_pmu.c
+++ b/drivers/perf/cxl_pmu.c
@@ -877,7 +877,7 @@ static int cxl_pmu_probe(struct device *dev)
 	if (!irq_name)
 		return -ENOMEM;
 
-	rc = devm_request_irq(dev, irq, cxl_pmu_irq, IRQF_SHARED | IRQF_ONESHOT,
+	rc = devm_request_irq(dev, irq, cxl_pmu_irq, IRQF_SHARED | IRQF_NO_THREAD,
 			      irq_name, info);
 	if (rc)
 		return rc;
-- 
2.51.0

[PATCH v2 15/20] mfd: wm8350-core: Use IRQF_ONESHOT

[Sebastian Andrzej Siewior]

Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Mark explained that this should not happen with this hardware since it
is a slow irqchip which is behind an I2C/ SPI bus but the IRQ-core will
refuse to accept such a handler.

Set IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 1c6c69525b40e ("genirq: Reject bogus threaded irq requests")
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Lee Jones <lee@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: patches@opensource.cirrus.com
Cc: Mark Brown <broonie@kernel.org>
---
 include/linux/mfd/wm8350/core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h
index 5f70d3b5d1b1a..097ef4dfcdac8 100644
--- a/include/linux/mfd/wm8350/core.h
+++ b/include/linux/mfd/wm8350/core.h
@@ -667,7 +667,7 @@ static inline int wm8350_register_irq(struct wm8350 *wm8350, int irq,
 		return -ENODEV;
 
 	return request_threaded_irq(irq + wm8350->irq_base, NULL,
-				    handler, flags, name, data);
+				    handler, flags | IRQF_ONESHOT, name, data);
 }
 
 static inline void wm8350_free_irq(struct wm8350 *wm8350, int irq, void *data)
-- 
2.51.0

[PATCH v2 16/20] iio: Use IRQF_NO_THREAD

[Sebastian Andrzej Siewior]

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

Use IRQF_NO_THREAD to forbid forced-threading.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: David Lechner <dlechner@baylibre.com>
Cc: Nuno Sá <nuno.sa@analog.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: linux-iio@vger.kernel.org
---
 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 8925f5279e627..7bc6761f51354 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 4d570383ef025..1e6bfe8765ab3 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 a624400a239cb..cf97adfa97274 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 f8eb251eca8dc..ef0abc4499b74 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) {
-- 
2.51.0

[PATCH v2 17/20] iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[Sebastian Andrzej Siewior]

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 intention here was probably not allowing forced-threading for
handlers such as iio_trigger_generic_data_rdy_poll() will intends to
invoke hard-interrupt handlers.

Replace IRQF_ONESHOT with IRQF_NO_THREAD.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Puranjay Mohan <puranjay@kernel.org>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: David Lechner <dlechner@baylibre.com>
Cc: Nuno Sá <nuno.sa@analog.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Marcelo Schmitt <marcelo.schmitt@analog.com>
Cc: Marcus Folkesson <marcus.folkesson@gmail.com>
Cc: Kent Gustavsson <kent@minoris.se>
Cc: Gustavo Silva <gustavograzs@gmail.com>
Cc: Nishant Malpani <nish.malpani25@gmail.com>
Cc: linux-iio@vger.kernel.org
---
 drivers/iio/accel/adxl355_core.c       |  5 ++---
 drivers/iio/accel/adxl372.c            |  9 ++++-----
 drivers/iio/accel/mxc4005.c            | 11 ++++-------
 drivers/iio/accel/stk8ba50.c           | 11 ++++-------
 drivers/iio/adc/ad4170-4.c             |  2 +-
 drivers/iio/adc/ad7768-1.c             |  5 ++---
 drivers/iio/adc/ad7779.c               |  2 +-
 drivers/iio/adc/mcp3911.c              |  2 +-
 drivers/iio/adc/ti-ads131e08.c         |  2 +-
 drivers/iio/chemical/ens160_core.c     |  9 +++------
 drivers/iio/gyro/adxrs290.c            |  2 +-
 drivers/iio/health/afe4403.c           |  9 ++++-----
 drivers/iio/health/afe4404.c           |  9 ++++-----
 drivers/iio/magnetometer/bmc150_magn.c |  9 +++------
 drivers/iio/pressure/dlhl60d.c         |  7 +++----
 drivers/iio/temperature/tmp006.c       | 10 ++++------
 16 files changed, 42 insertions(+), 62 deletions(-)

diff --git a/drivers/iio/accel/adxl355_core.c b/drivers/iio/accel/adxl355_core.c
index 5fc7f814b9077..1c1d64d5cbcb2 100644
--- a/drivers/iio/accel/adxl355_core.c
+++ b/drivers/iio/accel/adxl355_core.c
@@ -768,9 +768,8 @@ static int adxl355_probe_trigger(struct iio_dev *indio_dev, int irq)
 	data->dready_trig->ops = &adxl355_trigger_ops;
 	iio_trigger_set_drvdata(data->dready_trig, indio_dev);
 
-	ret = devm_request_irq(data->dev, irq,
-			       &iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT, "adxl355_irq", data->dready_trig);
+	ret = devm_request_irq(data->dev, irq, &iio_trigger_generic_data_rdy_poll,
+			       IRQF_NO_THREAD, "adxl355_irq", data->dready_trig);
 	if (ret)
 		return dev_err_probe(data->dev, ret, "request irq %d failed\n",
 				     irq);
diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index 46d518a2a0291..2f6aa52aeba51 100644
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -1247,11 +1247,10 @@ int adxl372_probe(struct device *dev, struct regmap *regmap,
 
 		indio_dev->trig = iio_trigger_get(st->dready_trig);
 
-		ret = devm_request_threaded_irq(dev, st->irq,
-					iio_trigger_generic_data_rdy_poll,
-					NULL,
-					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					indio_dev->name, st->dready_trig);
+		ret = devm_request_irq(dev, st->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       indio_dev->name, st->dready_trig);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index ac973d871c8bb..a2c3cf13d0981 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -486,13 +486,10 @@ static int mxc4005_probe(struct i2c_client *client)
 		if (!data->dready_trig)
 			return -ENOMEM;
 
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL,
-						IRQF_TRIGGER_FALLING |
-						IRQF_ONESHOT,
-						"mxc4005_event",
-						data->dready_trig);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_TRIGGER_FALLING | IRQF_NO_THREAD,
+				       "mxc4005_event", data->dready_trig);
 		if (ret) {
 			dev_err(&client->dev,
 				"failed to init threaded irq\n");
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 384f1fbcbcb37..a9ff2a273fe1c 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -428,13 +428,10 @@ static int stk8ba50_probe(struct i2c_client *client)
 	}
 
 	if (client->irq > 0) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						stk8ba50_data_rdy_trig_poll,
-						NULL,
-						IRQF_TRIGGER_RISING |
-						IRQF_ONESHOT,
-						"stk8ba50_event",
-						indio_dev);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       stk8ba50_data_rdy_trig_poll,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       "stk8ba50_event", indio_dev);
 		if (ret < 0) {
 			dev_err(&client->dev, "request irq %d failed\n",
 				client->irq);
diff --git a/drivers/iio/adc/ad4170-4.c b/drivers/iio/adc/ad4170-4.c
index efaed92191f1b..82205bfae531e 100644
--- a/drivers/iio/adc/ad4170-4.c
+++ b/drivers/iio/adc/ad4170-4.c
@@ -2973,7 +2973,7 @@ static int ad4170_probe(struct spi_device *spi)
 
 	if (spi->irq) {
 		ret = devm_request_irq(dev, spi->irq, &ad4170_irq_handler,
-				       IRQF_ONESHOT, indio_dev->name, indio_dev);
+				       IRQF_NO_THREAD, indio_dev->name, indio_dev);
 		if (ret)
 			return ret;
 
diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c
index d96802b7847a6..84ce23c8e5782 100644
--- a/drivers/iio/adc/ad7768-1.c
+++ b/drivers/iio/adc/ad7768-1.c
@@ -1394,9 +1394,8 @@ static int ad7768_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = devm_request_irq(&spi->dev, spi->irq,
-			       &ad7768_interrupt,
-			       IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+	ret = devm_request_irq(&spi->dev, spi->irq, &ad7768_interrupt,
+			       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
 			       indio_dev->name, indio_dev);
 	if (ret)
 		return ret;
diff --git a/drivers/iio/adc/ad7779.c b/drivers/iio/adc/ad7779.c
index aac5049c9a07b..695cc79e78da5 100644
--- a/drivers/iio/adc/ad7779.c
+++ b/drivers/iio/adc/ad7779.c
@@ -840,7 +840,7 @@ static int ad7779_setup_without_backend(struct ad7779_state *st, struct iio_dev
 	iio_trigger_set_drvdata(st->trig, st);
 
 	ret = devm_request_irq(dev, st->spi->irq, iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name,
+			       IRQF_NO_THREAD | IRQF_NO_AUTOEN, indio_dev->name,
 			       st->trig);
 	if (ret)
 		return dev_err_probe(dev, ret, "request IRQ %d failed\n",
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index a6f21791c6859..ddc3721f3f688 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -815,7 +815,7 @@ static int mcp3911_probe(struct spi_device *spi)
 		 * don't enable the interrupt to avoid extra load on the system.
 		 */
 		ret = devm_request_irq(dev, spi->irq, &iio_trigger_generic_data_rdy_poll,
-				       IRQF_NO_AUTOEN | IRQF_ONESHOT,
+				       IRQF_NO_AUTOEN | IRQF_NO_THREAD,
 				       indio_dev->name, adc->trig);
 		if (ret)
 			return ret;
diff --git a/drivers/iio/adc/ti-ads131e08.c b/drivers/iio/adc/ti-ads131e08.c
index c9a20024d6b11..a585621b0bc30 100644
--- a/drivers/iio/adc/ti-ads131e08.c
+++ b/drivers/iio/adc/ti-ads131e08.c
@@ -827,7 +827,7 @@ static int ads131e08_probe(struct spi_device *spi)
 	if (spi->irq) {
 		ret = devm_request_irq(&spi->dev, spi->irq,
 			ads131e08_interrupt,
-			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			IRQF_TRIGGER_FALLING | IRQF_NO_THREAD,
 			spi->dev.driver->name, indio_dev);
 		if (ret)
 			return dev_err_probe(&spi->dev, ret,
diff --git a/drivers/iio/chemical/ens160_core.c b/drivers/iio/chemical/ens160_core.c
index 86bde4a91bf7e..bbc96c4c62838 100644
--- a/drivers/iio/chemical/ens160_core.c
+++ b/drivers/iio/chemical/ens160_core.c
@@ -316,12 +316,9 @@ static int ens160_setup_trigger(struct iio_dev *indio_dev, int irq)
 
 	indio_dev->trig = iio_trigger_get(trig);
 
-	ret = devm_request_threaded_irq(dev, irq,
-					iio_trigger_generic_data_rdy_poll,
-					NULL,
-					IRQF_ONESHOT,
-					indio_dev->name,
-					indio_dev->trig);
+	ret = devm_request_irq(dev, irq, iio_trigger_generic_data_rdy_poll,
+			       IRQF_NO_THREAD, indio_dev->name,
+			       indio_dev->trig);
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to request irq\n");
 
diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c
index 8fcb41f45baac..3efe385ebedc4 100644
--- a/drivers/iio/gyro/adxrs290.c
+++ b/drivers/iio/gyro/adxrs290.c
@@ -597,7 +597,7 @@ static int adxrs290_probe_trigger(struct iio_dev *indio_dev)
 
 	ret = devm_request_irq(&st->spi->dev, st->spi->irq,
 			       &iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT, "adxrs290_irq", st->dready_trig);
+			       IRQF_NO_THREAD, "adxrs290_irq", st->dready_trig);
 	if (ret < 0)
 		return dev_err_probe(&st->spi->dev, ret,
 				     "request irq %d failed\n", st->spi->irq);
diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c
index 0e5a512e3bb8f..d358f4d5e5da8 100644
--- a/drivers/iio/health/afe4403.c
+++ b/drivers/iio/health/afe4403.c
@@ -540,11 +540,10 @@ static int afe4403_probe(struct spi_device *spi)
 			return ret;
 		}
 
-		ret = devm_request_threaded_irq(dev, afe->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL, IRQF_ONESHOT,
-						AFE4403_DRIVER_NAME,
-						afe->trig);
+		ret = devm_request_irq(dev, afe->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, AFE4403_DRIVER_NAME,
+				       afe->trig);
 		if (ret) {
 			dev_err(dev, "Unable to request IRQ\n");
 			return ret;
diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index 768d794e574b9..032da52a96d0e 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -547,11 +547,10 @@ static int afe4404_probe(struct i2c_client *client)
 			return ret;
 		}
 
-		ret = devm_request_threaded_irq(dev, afe->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL, IRQF_ONESHOT,
-						AFE4404_DRIVER_NAME,
-						afe->trig);
+		ret = devm_request_irq(dev, afe->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, AFE4404_DRIVER_NAME,
+				       afe->trig);
 		if (ret) {
 			dev_err(dev, "Unable to request IRQ\n");
 			return ret;
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 6a73f6e2f1f06..a022e1805dff7 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -906,12 +906,9 @@ int bmc150_magn_probe(struct device *dev, struct regmap *regmap,
 			goto err_poweroff;
 		}
 
-		ret = request_threaded_irq(irq,
-					   iio_trigger_generic_data_rdy_poll,
-					   NULL,
-					   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					   "bmc150_magn_event",
-					   data->dready_trig);
+		ret = request_irq(irq, iio_trigger_generic_data_rdy_poll,
+				  IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				  "bmc150_magn_event", data->dready_trig);
 		if (ret < 0) {
 			dev_err(dev, "request irq %d failed\n", irq);
 			goto err_trigger_unregister;
diff --git a/drivers/iio/pressure/dlhl60d.c b/drivers/iio/pressure/dlhl60d.c
index 8bad7162fec64..46feb27fe632f 100644
--- a/drivers/iio/pressure/dlhl60d.c
+++ b/drivers/iio/pressure/dlhl60d.c
@@ -306,10 +306,9 @@ static int dlh_probe(struct i2c_client *client)
 	indio_dev->num_channels = ARRAY_SIZE(dlh_channels);
 
 	if (client->irq > 0) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-			dlh_interrupt, NULL,
-			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-			st->info->name, indio_dev);
+		ret = devm_request_irq(&client->dev, client->irq, dlh_interrupt,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       st->info->name, indio_dev);
 		if (ret) {
 			dev_err(&client->dev, "failed to allocate threaded irq");
 			return ret;
diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 10bd3f221929d..d8d8c8936d177 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -356,12 +356,10 @@ static int tmp006_probe(struct i2c_client *client)
 
 		indio_dev->trig = iio_trigger_get(data->drdy_trig);
 
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL,
-						IRQF_ONESHOT,
-						"tmp006_irq",
-						data->drdy_trig);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, "tmp006_irq",
+				       data->drdy_trig);
 		if (ret < 0)
 			return ret;
 	}
-- 
2.51.0

[PATCH v2 18/20] iio: magnetometer: Remove IRQF_ONESHOT

[Sebastian Andrzej Siewior]

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 force-threading functionality is required on PREEMPT_RT because the
handler is using locks with can sleep on PREEMPT_RT.

Remove IRQF_ONESHOT from irqflags.

Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: David Lechner <dlechner@baylibre.com>
Cc: Nuno Sá <nuno.sa@analog.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: linux-iio@vger.kernel.org
---
 drivers/iio/magnetometer/ak8975.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 3fd0171e5d69b..d30315ad85ded 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -581,7 +581,7 @@ static int ak8975_setup_irq(struct ak8975_data *data)
 		irq = gpiod_to_irq(data->eoc_gpiod);
 
 	rc = devm_request_irq(&client->dev, irq, ak8975_irq_handler,
-			      IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+			      IRQF_TRIGGER_RISING,
 			      dev_name(&client->dev), data);
 	if (rc < 0) {
 		dev_err(&client->dev, "irq %d request failed: %d\n", irq, rc);
-- 
2.51.0

[PATCH v2 19/20] iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()

[Sebastian Andrzej Siewior]

ad7766_irq() is identical to iio_trigger_generic_data_rdy_poll().

Use iio_trigger_generic_data_rdy_poll() instead of ad7766_irq().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: David Lechner <dlechner@baylibre.com>
Cc: "Nuno Sá" <nuno.sa@analog.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: linux-iio@vger.kernel.org
---
 drivers/iio/adc/ad7766.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c
index 1e6bfe8765ab3..9e4a66477d2d0 100644
--- a/drivers/iio/adc/ad7766.c
+++ b/drivers/iio/adc/ad7766.c
@@ -184,12 +184,6 @@ static const struct iio_info ad7766_info = {
 	.read_raw = &ad7766_read_raw,
 };
 
-static irqreturn_t ad7766_irq(int irq, void *private)
-{
-	iio_trigger_poll(private);
-	return IRQ_HANDLED;
-}
-
 static int ad7766_set_trigger_state(struct iio_trigger *trig, bool enable)
 {
 	struct ad7766 *ad7766 = iio_trigger_get_drvdata(trig);
@@ -260,7 +254,7 @@ static int ad7766_probe(struct spi_device *spi)
 		 * Some platforms might not allow the option to power it down so
 		 * don't enable the interrupt to avoid extra load on the system
 		 */
-		ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq,
+		ret = devm_request_irq(&spi->dev, spi->irq, iio_trigger_generic_data_rdy_poll,
 				       IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN | IRQF_NO_THREAD,
 				       dev_name(&spi->dev),
 				       ad7766->trig);
-- 
2.51.0

[PATCH v2 20/20] media: pci: mg4b: Use IRQF_NO_THREAD

[Sebastian Andrzej Siewior]

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

Use IRQF_NO_THREAD to forbid forced-threading.

Fixes: 0ab13674a9bd1 ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
Cc: Martin Tuma <martin.tuma@digiteqautomotive.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org
---
 drivers/media/pci/mgb4/mgb4_trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mgb4/mgb4_trigger.c b/drivers/media/pci/mgb4/mgb4_trigger.c
index 4f9a35904b418..70cad324df608 100644
--- a/drivers/media/pci/mgb4/mgb4_trigger.c
+++ b/drivers/media/pci/mgb4/mgb4_trigger.c
@@ -115,7 +115,7 @@ static int probe_trigger(struct iio_dev *indio_dev, int irq)
 	if (!st->trig)
 		return -ENOMEM;
 
-	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, 0,
+	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, IRQF_NO_THREAD,
 			  "mgb4-trigger", st->trig);
 	if (ret)
 		goto error_free_trig;
-- 
2.51.0

Re: (subset) [PATCH v2 12/20] rtc: amlogic-a4: Remove IRQF_ONESHOT

[Alexandre Belloni]

On Wed, 28 Jan 2026 10:55:32 +0100, Sebastian Andrzej Siewior wrote:
> 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.
> 
> [...]

Applied, thanks!

[12/20] rtc: amlogic-a4: Remove IRQF_ONESHOT
        https://git.kernel.org/abelloni/c/1932db202c93

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH v2 16/20] iio: Use IRQF_NO_THREAD

[Andy Shevchenko]

On Wed, Jan 28, 2026 at 10:55:36AM +0100, Sebastian Andrzej Siewior wrote:
> The interrupt handler iio_trigger_generic_data_rdy_poll() will invoke
> other interrupt handler and this supposed to happen from within the
> hardirq.
> 
> Use IRQF_NO_THREAD to forbid forced-threading.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 18/20] iio: magnetometer: Remove IRQF_ONESHOT

[Andy Shevchenko]

On Wed, Jan 28, 2026 at 10:55:38AM +0100, Sebastian Andrzej Siewior wrote:
> 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 force-threading functionality is required on PREEMPT_RT because the
> handler is using locks with can sleep on PREEMPT_RT.
> 
> Remove IRQF_ONESHOT from irqflags.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 19/20] iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()

[Andy Shevchenko]

On Wed, Jan 28, 2026 at 10:55:39AM +0100, Sebastian Andrzej Siewior wrote:
> ad7766_irq() is identical to iio_trigger_generic_data_rdy_poll().
> 
> Use iio_trigger_generic_data_rdy_poll() instead of ad7766_irq().

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 15/20] mfd: wm8350-core: Use IRQF_ONESHOT

[Andy Shevchenko]

On Wed, Jan 28, 2026 at 10:55:35AM +0100, Sebastian Andrzej Siewior wrote:
> Using a threaded interrupt without a dedicated primary handler mandates
> the IRQF_ONESHOT flag to mask the interrupt source while the threaded
> handler is active. Otherwise the interrupt can fire again before the
> threaded handler had a chance to run.
> 
> Mark explained that this should not happen with this hardware since it
> is a slow irqchip which is behind an I2C/ SPI bus but the IRQ-core will
> refuse to accept such a handler.
> 
> Set IRQF_ONESHOT so the interrupt source is masked until the secondary
> handler is done.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 00/20] IRQF_ONESHOT clean up

[Will Deacon]

On Wed, 28 Jan 2026 10:55:20 +0100, Sebastian Andrzej Siewior wrote:
> There was a bug report about setting IRQF_ONESHOT where it should have
> not been set. I looked around for other mistakes in that area. There are
> the following categories:
> 
> - Using custom primary irq handler doing exactly what
>   irq_default_primary_handler() does
> 
> [...]

Applied the CXL PMU patch to will (for-next/perf), thanks!

[14/20] perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
        https://git.kernel.org/will/c/ab26d9c85554

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev

Re: [PATCH v2 16/20] iio: Use IRQF_NO_THREAD

[Jonathan Cameron]

On Wed, 28 Jan 2026 15:03:06 +0200
Andy Shevchenko <andriy.shevchenko@intel.com> wrote:

> On Wed, Jan 28, 2026 at 10:55:36AM +0100, Sebastian Andrzej Siewior wrote:
> > The interrupt handler iio_trigger_generic_data_rdy_poll() will invoke
> > other interrupt handler and this supposed to happen from within the
> > hardirq.
> > 
> > Use IRQF_NO_THREAD to forbid forced-threading.  
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
> 
Applied.

Thanks for fixing these up.

Jonathan

Re: [PATCH v2 17/20] iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[Jonathan Cameron]

On Wed, 28 Jan 2026 10:55:37 +0100
Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:

> 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 intention here was probably not allowing forced-threading for
> handlers such as iio_trigger_generic_data_rdy_poll() will intends to
> invoke hard-interrupt handlers.
> 
> Replace IRQF_ONESHOT with IRQF_NO_THREAD.
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
> Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Applied

Thanks.

Re: [PATCH v2 18/20] iio: magnetometer: Remove IRQF_ONESHOT

[Jonathan Cameron]

On Wed, 28 Jan 2026 15:04:30 +0200
Andy Shevchenko <andriy.shevchenko@intel.com> wrote:

> On Wed, Jan 28, 2026 at 10:55:38AM +0100, Sebastian Andrzej Siewior wrote:
> > 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 force-threading functionality is required on PREEMPT_RT because the
> > handler is using locks with can sleep on PREEMPT_RT.
> > 
> > Remove IRQF_ONESHOT from irqflags.  
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
> 
Applied.
Thanks

Re: [PATCH v2 19/20] iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()

[Jonathan Cameron]

On Wed, 28 Jan 2026 15:05:37 +0200
Andy Shevchenko <andriy.shevchenko@intel.com> wrote:

> On Wed, Jan 28, 2026 at 10:55:39AM +0100, Sebastian Andrzej Siewior wrote:
> > ad7766_irq() is identical to iio_trigger_generic_data_rdy_poll().
> > 
> > Use iio_trigger_generic_data_rdy_poll() instead of ad7766_irq().  
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
> 
Applied.

Thanks,

Jonathan

[tip: irq/cleanups] media: pci: mg4b: Use IRQF_NO_THREAD

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     8b8a7a56a9a2eb7c8995df7073b1a19852edea97
Gitweb:        https://git.kernel.org/tip/8b8a7a56a9a2eb7c8995df7073b1a19852edea97
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:40 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:18 +01:00

media: pci: mg4b: Use IRQF_NO_THREAD

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

Use IRQF_NO_THREAD to forbid forced-threading.

Fixes: 0ab13674a9bd1 ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-21-bigeasy@linutronix.de
---
 drivers/media/pci/mgb4/mgb4_trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mgb4/mgb4_trigger.c b/drivers/media/pci/mgb4/mgb4_trigger.c
index 4f9a359..70cad32 100644
--- a/drivers/media/pci/mgb4/mgb4_trigger.c
+++ b/drivers/media/pci/mgb4/mgb4_trigger.c
@@ -115,7 +115,7 @@ static int probe_trigger(struct iio_dev *indio_dev, int irq)
 	if (!st->trig)
 		return -ENOMEM;
 
-	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, 0,
+	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, IRQF_NO_THREAD,
 			  "mgb4-trigger", st->trig);
 	if (ret)
 		goto error_free_trig;

[tip: irq/cleanups] iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     44c9ec4096cdfd18a84f30d011482914ff73c66b
Gitweb:        https://git.kernel.org/tip/44c9ec4096cdfd18a84f30d011482914ff73c66b
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:39 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:17 +01:00

iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()

ad7766_irq() is identical to iio_trigger_generic_data_rdy_poll().

Use iio_trigger_generic_data_rdy_poll() instead of ad7766_irq().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260128095540.863589-20-bigeasy@linutronix.de
---
 drivers/iio/adc/ad7766.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c
index 1e6bfe8..9e4a664 100644
--- a/drivers/iio/adc/ad7766.c
+++ b/drivers/iio/adc/ad7766.c
@@ -184,12 +184,6 @@ static const struct iio_info ad7766_info = {
 	.read_raw = &ad7766_read_raw,
 };
 
-static irqreturn_t ad7766_irq(int irq, void *private)
-{
-	iio_trigger_poll(private);
-	return IRQ_HANDLED;
-}
-
 static int ad7766_set_trigger_state(struct iio_trigger *trig, bool enable)
 {
 	struct ad7766 *ad7766 = iio_trigger_get_drvdata(trig);
@@ -260,7 +254,7 @@ static int ad7766_probe(struct spi_device *spi)
 		 * Some platforms might not allow the option to power it down so
 		 * don't enable the interrupt to avoid extra load on the system
 		 */
-		ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq,
+		ret = devm_request_irq(&spi->dev, spi->irq, iio_trigger_generic_data_rdy_poll,
 				       IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN | IRQF_NO_THREAD,
 				       dev_name(&spi->dev),
 				       ad7766->trig);

[tip: irq/cleanups] iio: magnetometer: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     25974af8028aa638f33ef46cb9ae6a9b4206aa49
Gitweb:        https://git.kernel.org/tip/25974af8028aa638f33ef46cb9ae6a9b4206aa49
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:38 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:17 +01:00

iio: magnetometer: Remove IRQF_ONESHOT

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

The force-threading functionality is required on PREEMPT_RT because the
handler is using locks with can sleep on PREEMPT_RT.

Remove IRQF_ONESHOT from irqflags.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260128095540.863589-19-bigeasy@linutronix.de
---
 drivers/iio/magnetometer/ak8975.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 3fd0171..d30315a 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -581,7 +581,7 @@ static int ak8975_setup_irq(struct ak8975_data *data)
 		irq = gpiod_to_irq(data->eoc_gpiod);
 
 	rc = devm_request_irq(&client->dev, irq, ak8975_irq_handler,
-			      IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+			      IRQF_TRIGGER_RISING,
 			      dev_name(&client->dev), data);
 	if (rc < 0) {
 		dev_err(&client->dev, "irq %d request failed: %d\n", irq, rc);

[tip: irq/cleanups] iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     c04731b5f1502e619dec24a8005fbbcbb8cd0e50
Gitweb:        https://git.kernel.org/tip/c04731b5f1502e619dec24a8005fbbcbb8cd0e50
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:37 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:17 +01:00

iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

The intention here was probably not allowing forced-threading for
handlers such as iio_trigger_generic_data_rdy_poll().

Replace IRQF_ONESHOT with IRQF_NO_THREAD.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://patch.msgid.link/20260128095540.863589-18-bigeasy@linutronix.de
---
 drivers/iio/accel/adxl355_core.c       |  5 ++---
 drivers/iio/accel/adxl372.c            |  9 ++++-----
 drivers/iio/accel/mxc4005.c            | 11 ++++-------
 drivers/iio/accel/stk8ba50.c           | 11 ++++-------
 drivers/iio/adc/ad4170-4.c             |  2 +-
 drivers/iio/adc/ad7768-1.c             |  5 ++---
 drivers/iio/adc/ad7779.c               |  2 +-
 drivers/iio/adc/mcp3911.c              |  2 +-
 drivers/iio/adc/ti-ads131e08.c         |  2 +-
 drivers/iio/chemical/ens160_core.c     |  9 +++------
 drivers/iio/gyro/adxrs290.c            |  2 +-
 drivers/iio/health/afe4403.c           |  9 ++++-----
 drivers/iio/health/afe4404.c           |  9 ++++-----
 drivers/iio/magnetometer/bmc150_magn.c |  9 +++------
 drivers/iio/pressure/dlhl60d.c         |  7 +++----
 drivers/iio/temperature/tmp006.c       | 10 ++++------
 16 files changed, 42 insertions(+), 62 deletions(-)

diff --git a/drivers/iio/accel/adxl355_core.c b/drivers/iio/accel/adxl355_core.c
index 5fc7f81..1c1d64d 100644
--- a/drivers/iio/accel/adxl355_core.c
+++ b/drivers/iio/accel/adxl355_core.c
@@ -768,9 +768,8 @@ static int adxl355_probe_trigger(struct iio_dev *indio_dev, int irq)
 	data->dready_trig->ops = &adxl355_trigger_ops;
 	iio_trigger_set_drvdata(data->dready_trig, indio_dev);
 
-	ret = devm_request_irq(data->dev, irq,
-			       &iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT, "adxl355_irq", data->dready_trig);
+	ret = devm_request_irq(data->dev, irq, &iio_trigger_generic_data_rdy_poll,
+			       IRQF_NO_THREAD, "adxl355_irq", data->dready_trig);
 	if (ret)
 		return dev_err_probe(data->dev, ret, "request irq %d failed\n",
 				     irq);
diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index 46d518a..2f6aa52 100644
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -1247,11 +1247,10 @@ int adxl372_probe(struct device *dev, struct regmap *regmap,
 
 		indio_dev->trig = iio_trigger_get(st->dready_trig);
 
-		ret = devm_request_threaded_irq(dev, st->irq,
-					iio_trigger_generic_data_rdy_poll,
-					NULL,
-					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					indio_dev->name, st->dready_trig);
+		ret = devm_request_irq(dev, st->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       indio_dev->name, st->dready_trig);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index ac973d8..a2c3cf1 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -486,13 +486,10 @@ static int mxc4005_probe(struct i2c_client *client)
 		if (!data->dready_trig)
 			return -ENOMEM;
 
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL,
-						IRQF_TRIGGER_FALLING |
-						IRQF_ONESHOT,
-						"mxc4005_event",
-						data->dready_trig);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_TRIGGER_FALLING | IRQF_NO_THREAD,
+				       "mxc4005_event", data->dready_trig);
 		if (ret) {
 			dev_err(&client->dev,
 				"failed to init threaded irq\n");
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 384f1fb..a9ff2a2 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -428,13 +428,10 @@ static int stk8ba50_probe(struct i2c_client *client)
 	}
 
 	if (client->irq > 0) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						stk8ba50_data_rdy_trig_poll,
-						NULL,
-						IRQF_TRIGGER_RISING |
-						IRQF_ONESHOT,
-						"stk8ba50_event",
-						indio_dev);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       stk8ba50_data_rdy_trig_poll,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       "stk8ba50_event", indio_dev);
 		if (ret < 0) {
 			dev_err(&client->dev, "request irq %d failed\n",
 				client->irq);
diff --git a/drivers/iio/adc/ad4170-4.c b/drivers/iio/adc/ad4170-4.c
index efaed92..82205bf 100644
--- a/drivers/iio/adc/ad4170-4.c
+++ b/drivers/iio/adc/ad4170-4.c
@@ -2973,7 +2973,7 @@ static int ad4170_probe(struct spi_device *spi)
 
 	if (spi->irq) {
 		ret = devm_request_irq(dev, spi->irq, &ad4170_irq_handler,
-				       IRQF_ONESHOT, indio_dev->name, indio_dev);
+				       IRQF_NO_THREAD, indio_dev->name, indio_dev);
 		if (ret)
 			return ret;
 
diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c
index d96802b..84ce23c 100644
--- a/drivers/iio/adc/ad7768-1.c
+++ b/drivers/iio/adc/ad7768-1.c
@@ -1394,9 +1394,8 @@ static int ad7768_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = devm_request_irq(&spi->dev, spi->irq,
-			       &ad7768_interrupt,
-			       IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+	ret = devm_request_irq(&spi->dev, spi->irq, &ad7768_interrupt,
+			       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
 			       indio_dev->name, indio_dev);
 	if (ret)
 		return ret;
diff --git a/drivers/iio/adc/ad7779.c b/drivers/iio/adc/ad7779.c
index aac5049..695cc79 100644
--- a/drivers/iio/adc/ad7779.c
+++ b/drivers/iio/adc/ad7779.c
@@ -840,7 +840,7 @@ static int ad7779_setup_without_backend(struct ad7779_state *st, struct iio_dev 
 	iio_trigger_set_drvdata(st->trig, st);
 
 	ret = devm_request_irq(dev, st->spi->irq, iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name,
+			       IRQF_NO_THREAD | IRQF_NO_AUTOEN, indio_dev->name,
 			       st->trig);
 	if (ret)
 		return dev_err_probe(dev, ret, "request IRQ %d failed\n",
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index a6f2179..ddc3721 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -815,7 +815,7 @@ static int mcp3911_probe(struct spi_device *spi)
 		 * don't enable the interrupt to avoid extra load on the system.
 		 */
 		ret = devm_request_irq(dev, spi->irq, &iio_trigger_generic_data_rdy_poll,
-				       IRQF_NO_AUTOEN | IRQF_ONESHOT,
+				       IRQF_NO_AUTOEN | IRQF_NO_THREAD,
 				       indio_dev->name, adc->trig);
 		if (ret)
 			return ret;
diff --git a/drivers/iio/adc/ti-ads131e08.c b/drivers/iio/adc/ti-ads131e08.c
index c9a2002..a585621 100644
--- a/drivers/iio/adc/ti-ads131e08.c
+++ b/drivers/iio/adc/ti-ads131e08.c
@@ -827,7 +827,7 @@ static int ads131e08_probe(struct spi_device *spi)
 	if (spi->irq) {
 		ret = devm_request_irq(&spi->dev, spi->irq,
 			ads131e08_interrupt,
-			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			IRQF_TRIGGER_FALLING | IRQF_NO_THREAD,
 			spi->dev.driver->name, indio_dev);
 		if (ret)
 			return dev_err_probe(&spi->dev, ret,
diff --git a/drivers/iio/chemical/ens160_core.c b/drivers/iio/chemical/ens160_core.c
index 86bde4a..bbc96c4 100644
--- a/drivers/iio/chemical/ens160_core.c
+++ b/drivers/iio/chemical/ens160_core.c
@@ -316,12 +316,9 @@ static int ens160_setup_trigger(struct iio_dev *indio_dev, int irq)
 
 	indio_dev->trig = iio_trigger_get(trig);
 
-	ret = devm_request_threaded_irq(dev, irq,
-					iio_trigger_generic_data_rdy_poll,
-					NULL,
-					IRQF_ONESHOT,
-					indio_dev->name,
-					indio_dev->trig);
+	ret = devm_request_irq(dev, irq, iio_trigger_generic_data_rdy_poll,
+			       IRQF_NO_THREAD, indio_dev->name,
+			       indio_dev->trig);
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to request irq\n");
 
diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c
index 8fcb41f..3efe385 100644
--- a/drivers/iio/gyro/adxrs290.c
+++ b/drivers/iio/gyro/adxrs290.c
@@ -597,7 +597,7 @@ static int adxrs290_probe_trigger(struct iio_dev *indio_dev)
 
 	ret = devm_request_irq(&st->spi->dev, st->spi->irq,
 			       &iio_trigger_generic_data_rdy_poll,
-			       IRQF_ONESHOT, "adxrs290_irq", st->dready_trig);
+			       IRQF_NO_THREAD, "adxrs290_irq", st->dready_trig);
 	if (ret < 0)
 		return dev_err_probe(&st->spi->dev, ret,
 				     "request irq %d failed\n", st->spi->irq);
diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c
index 0e5a512..d358f4d 100644
--- a/drivers/iio/health/afe4403.c
+++ b/drivers/iio/health/afe4403.c
@@ -540,11 +540,10 @@ static int afe4403_probe(struct spi_device *spi)
 			return ret;
 		}
 
-		ret = devm_request_threaded_irq(dev, afe->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL, IRQF_ONESHOT,
-						AFE4403_DRIVER_NAME,
-						afe->trig);
+		ret = devm_request_irq(dev, afe->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, AFE4403_DRIVER_NAME,
+				       afe->trig);
 		if (ret) {
 			dev_err(dev, "Unable to request IRQ\n");
 			return ret;
diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index 768d794..032da52 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -547,11 +547,10 @@ static int afe4404_probe(struct i2c_client *client)
 			return ret;
 		}
 
-		ret = devm_request_threaded_irq(dev, afe->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL, IRQF_ONESHOT,
-						AFE4404_DRIVER_NAME,
-						afe->trig);
+		ret = devm_request_irq(dev, afe->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, AFE4404_DRIVER_NAME,
+				       afe->trig);
 		if (ret) {
 			dev_err(dev, "Unable to request IRQ\n");
 			return ret;
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 6a73f6e..a022e18 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -906,12 +906,9 @@ int bmc150_magn_probe(struct device *dev, struct regmap *regmap,
 			goto err_poweroff;
 		}
 
-		ret = request_threaded_irq(irq,
-					   iio_trigger_generic_data_rdy_poll,
-					   NULL,
-					   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					   "bmc150_magn_event",
-					   data->dready_trig);
+		ret = request_irq(irq, iio_trigger_generic_data_rdy_poll,
+				  IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				  "bmc150_magn_event", data->dready_trig);
 		if (ret < 0) {
 			dev_err(dev, "request irq %d failed\n", irq);
 			goto err_trigger_unregister;
diff --git a/drivers/iio/pressure/dlhl60d.c b/drivers/iio/pressure/dlhl60d.c
index 8bad716..46feb27 100644
--- a/drivers/iio/pressure/dlhl60d.c
+++ b/drivers/iio/pressure/dlhl60d.c
@@ -306,10 +306,9 @@ static int dlh_probe(struct i2c_client *client)
 	indio_dev->num_channels = ARRAY_SIZE(dlh_channels);
 
 	if (client->irq > 0) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-			dlh_interrupt, NULL,
-			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-			st->info->name, indio_dev);
+		ret = devm_request_irq(&client->dev, client->irq, dlh_interrupt,
+				       IRQF_TRIGGER_RISING | IRQF_NO_THREAD,
+				       st->info->name, indio_dev);
 		if (ret) {
 			dev_err(&client->dev, "failed to allocate threaded irq");
 			return ret;
diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 10bd3f2..d8d8c89 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -356,12 +356,10 @@ static int tmp006_probe(struct i2c_client *client)
 
 		indio_dev->trig = iio_trigger_get(data->drdy_trig);
 
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						iio_trigger_generic_data_rdy_poll,
-						NULL,
-						IRQF_ONESHOT,
-						"tmp006_irq",
-						data->drdy_trig);
+		ret = devm_request_irq(&client->dev, client->irq,
+				       iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_THREAD, "tmp006_irq",
+				       data->drdy_trig);
 		if (ret < 0)
 			return ret;
 	}

[tip: irq/cleanups] iio: Use IRQF_NO_THREAD

[tip-bot2 for Sebastian Andrzej Siewior]

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@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:36 +01:00
Committer:     Thomas Gleixner <tglx@kernel.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@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.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) {

[tip: irq/cleanups] mfd: wm8350-core: Use IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     553b4999cbe231b5011cb8db05a3092dec168aca
Gitweb:        https://git.kernel.org/tip/553b4999cbe231b5011cb8db05a3092dec168aca
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:35 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:16 +01:00

mfd: wm8350-core: Use IRQF_ONESHOT

Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Mark explained that this should not happen with this hardware since it
is a slow irqchip which is behind an I2C/ SPI bus but the IRQ-core will
refuse to accept such a handler.

Set IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 1c6c69525b40e ("genirq: Reject bogus threaded irq requests")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260128095540.863589-16-bigeasy@linutronix.de
---
 include/linux/mfd/wm8350/core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h
index 5f70d3b..097ef4d 100644
--- a/include/linux/mfd/wm8350/core.h
+++ b/include/linux/mfd/wm8350/core.h
@@ -667,7 +667,7 @@ static inline int wm8350_register_irq(struct wm8350 *wm8350, int irq,
 		return -ENODEV;
 
 	return request_threaded_irq(irq + wm8350->irq_base, NULL,
-				    handler, flags, name, data);
+				    handler, flags | IRQF_ONESHOT, name, data);
 }
 
 static inline void wm8350_free_irq(struct wm8350 *wm8350, int irq, void *data)

[tip: irq/cleanups] thermal/qcom/lmh: Replace IRQF_ONESHOT with IRQF_NO_THREAD

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     781b391557a74f6630d46a0813b389a8ca30b6c8
Gitweb:        https://git.kernel.org/tip/781b391557a74f6630d46a0813b389a8ca30b6c8
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:33 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:16 +01:00

thermal/qcom/lmh: Replace IRQF_ONESHOT with IRQF_NO_THREAD

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

The intention here was probably to not allow forced-threading.

Replace IRQF_ONESHOT with IRQF_NO_THREAD.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-14-bigeasy@linutronix.de
---
 drivers/thermal/qcom/lmh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/lmh.c b/drivers/thermal/qcom/lmh.c
index ddadcfa..3d072b7 100644
--- a/drivers/thermal/qcom/lmh.c
+++ b/drivers/thermal/qcom/lmh.c
@@ -220,7 +220,7 @@ static int lmh_probe(struct platform_device *pdev)
 	/* Disable the irq and let cpufreq enable it when ready to handle the interrupt */
 	irq_set_status_flags(lmh_data->irq, IRQ_NOAUTOEN);
 	ret = devm_request_irq(dev, lmh_data->irq, lmh_handle_irq,
-			       IRQF_ONESHOT | IRQF_NO_SUSPEND,
+			       IRQF_NO_THREAD | IRQF_NO_SUSPEND,
 			       "lmh-irq", lmh_data);
 	if (ret) {
 		dev_err(dev, "Error %d registering irq %x\n", ret, lmh_data->irq);

[tip: irq/cleanups] rtc: amlogic-a4: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     18d28446231390e4ea3634fb16200865df2c6506
Gitweb:        https://git.kernel.org/tip/18d28446231390e4ea3634fb16200865df2c6506
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:32 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:16 +01:00

rtc: amlogic-a4: Remove IRQF_ONESHOT

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT from irqflags.

Fixes: c89ac9182ee29 ("rtc: support for the Amlogic on-chip RTC")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://patch.msgid.link/20260128095540.863589-13-bigeasy@linutronix.de
---
 drivers/rtc/rtc-amlogic-a4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-amlogic-a4.c b/drivers/rtc/rtc-amlogic-a4.c
index 123fb37..50938c3 100644
--- a/drivers/rtc/rtc-amlogic-a4.c
+++ b/drivers/rtc/rtc-amlogic-a4.c
@@ -369,7 +369,7 @@ static int aml_rtc_probe(struct platform_device *pdev)
 		return PTR_ERR(rtc->rtc_dev);
 
 	ret = devm_request_irq(dev, rtc->irq, aml_rtc_handler,
-			       IRQF_ONESHOT, "aml-rtc alarm", rtc);
+			       0, "aml-rtc alarm", rtc);
 	if (ret) {
 		dev_err_probe(dev, ret, "IRQ%d request failed, ret = %d\n",
 			      rtc->irq, ret);

[tip: irq/cleanups] usb: typec: fusb302: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     a7fb84ea70aae9a92a842932206e70ed1b3c7007
Gitweb:        https://git.kernel.org/tip/a7fb84ea70aae9a92a842932206e70ed1b3c7007
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:31 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:16 +01:00

usb: typec: fusb302: Remove IRQF_ONESHOT

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT from irqflags.

Fixes: 309b6341d5570 ("usb: typec: fusb302: Revert incorrect threaded irq fix")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260128095540.863589-12-bigeasy@linutronix.de
---
 drivers/usb/typec/tcpm/fusb302.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index 870a71f..19ff821 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -1756,8 +1756,7 @@ static int fusb302_probe(struct i2c_client *client)
 	}
 
 	ret = request_irq(chip->gpio_int_n_irq, fusb302_irq_intn,
-			  IRQF_ONESHOT | IRQF_TRIGGER_LOW,
-			  "fsc_interrupt_int_n", chip);
+			  IRQF_TRIGGER_LOW, "fsc_interrupt_int_n", chip);
 	if (ret < 0) {
 		dev_err(dev, "cannot request IRQ for GPIO Int_N, ret=%d", ret);
 		goto tcpm_unregister_port;

[tip: irq/cleanups] EDAC/altera: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     5c858d6c66304b4c7579582ec5235f02d43578ea
Gitweb:        https://git.kernel.org/tip/5c858d6c66304b4c7579582ec5235f02d43578ea
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:30 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:15 +01:00

EDAC/altera: Remove IRQF_ONESHOT

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT from irqflags.

Fixes: a29d64a45eed1 ("EDAC, altera: Add IRQ Flags to disable IRQ while handling")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-11-bigeasy@linutronix.de
---
 drivers/edac/altera_edac.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 0c5b94e..4edd208 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -1563,8 +1563,7 @@ static int altr_portb_setup(struct altr_edac_device_dev *device)
 		goto err_release_group_1;
 	}
 	rc = devm_request_irq(&altdev->ddev, altdev->sb_irq,
-			      prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      prv->ecc_irq_handler, IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "PortB SBERR IRQ error\n");
@@ -1587,8 +1586,7 @@ static int altr_portb_setup(struct altr_edac_device_dev *device)
 		goto err_release_group_1;
 	}
 	rc = devm_request_irq(&altdev->ddev, altdev->db_irq,
-			      prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      prv->ecc_irq_handler, IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "PortB DBERR IRQ error\n");
@@ -1970,8 +1968,7 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac,
 		goto err_release_group1;
 	}
 	rc = devm_request_irq(edac->dev, altdev->sb_irq, prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
-			      ecc_name, altdev);
+			      IRQF_TRIGGER_HIGH, ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "No SBERR IRQ resource\n");
 		goto err_release_group1;
@@ -1993,7 +1990,7 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac,
 		goto err_release_group1;
 	}
 	rc = devm_request_irq(edac->dev, altdev->db_irq, prv->ecc_irq_handler,
-			      IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
+			      IRQF_TRIGGER_HIGH,
 			      ecc_name, altdev);
 	if (rc) {
 		edac_printk(KERN_ERR, EDAC_DEVICE, "No DBERR IRQ resource\n");

[tip: irq/cleanups] char: tpm: cr50: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     1affd29ffbd50125a5492c6be1dbb1f04be18d4f
Gitweb:        https://git.kernel.org/tip/1affd29ffbd50125a5492c6be1dbb1f04be18d4f
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:29 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:15 +01:00

char: tpm: cr50: Remove IRQF_ONESHOT

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 prevents force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT from irqflags.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-10-bigeasy@linutronix.de
---
 drivers/char/tpm/tpm_tis_i2c_cr50.c | 3 +--
 drivers/char/tpm/tpm_tis_spi_cr50.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_i2c_cr50.c b/drivers/char/tpm/tpm_tis_i2c_cr50.c
index fc6891a..b48caca 100644
--- a/drivers/char/tpm/tpm_tis_i2c_cr50.c
+++ b/drivers/char/tpm/tpm_tis_i2c_cr50.c
@@ -749,8 +749,7 @@ static int tpm_cr50_i2c_probe(struct i2c_client *client)
 
 	if (client->irq > 0) {
 		rc = devm_request_irq(dev, client->irq, tpm_cr50_i2c_int_handler,
-				      IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
-				      IRQF_NO_AUTOEN,
+				      IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN,
 				      dev->driver->name, chip);
 		if (rc < 0) {
 			dev_err(dev, "Failed to probe IRQ %d\n", client->irq);
diff --git a/drivers/char/tpm/tpm_tis_spi_cr50.c b/drivers/char/tpm/tpm_tis_spi_cr50.c
index f493728..32920b4 100644
--- a/drivers/char/tpm/tpm_tis_spi_cr50.c
+++ b/drivers/char/tpm/tpm_tis_spi_cr50.c
@@ -287,7 +287,7 @@ int cr50_spi_probe(struct spi_device *spi)
 	if (spi->irq > 0) {
 		ret = devm_request_irq(&spi->dev, spi->irq,
 				       cr50_spi_irq_handler,
-				       IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				       IRQF_TRIGGER_RISING,
 				       "cr50_spi", cr50_phy);
 		if (ret < 0) {
 			if (ret == -EPROBE_DEFER)

[tip: irq/cleanups] ARM: versatile: Remove IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     a82bf786500a011c0ecc63ce1511b7fc471137cd
Gitweb:        https://git.kernel.org/tip/a82bf786500a011c0ecc63ce1511b7fc471137cd
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:28 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:15 +01:00

ARM: versatile: Remove IRQF_ONESHOT

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.

Revert adding IRQF_ONESHOT to irqflags.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-9-bigeasy@linutronix.de
---
 arch/arm/mach-versatile/spc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-versatile/spc.c b/arch/arm/mach-versatile/spc.c
index 812db32..2d27777 100644
--- a/arch/arm/mach-versatile/spc.c
+++ b/arch/arm/mach-versatile/spc.c
@@ -459,8 +459,8 @@ int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid, int irq)
 
 	readl_relaxed(info->baseaddr + PWC_STATUS);
 
-	ret = request_irq(irq, ve_spc_irq_handler, IRQF_TRIGGER_HIGH
-				| IRQF_ONESHOT, "vexpress-spc", info);
+	ret = request_irq(irq, ve_spc_irq_handler, IRQF_TRIGGER_HIGH,
+			  "vexpress-spc", info);
 	if (ret) {
 		pr_err(SPCLOG "IRQ %d request failed\n", irq);
 		kfree(info);

[tip: irq/cleanups] scsi: efct: Use IRQF_ONESHOT and default primary handler

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     bd81f07e9a27c341cd7e72be95eb0b7cf3910926
Gitweb:        https://git.kernel.org/tip/bd81f07e9a27c341cd7e72be95eb0b7cf3910926
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:27 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:14 +01:00

scsi: efct: Use IRQF_ONESHOT and default primary handler

There is no added value in efct_intr_msix() compared to
irq_default_primary_handler().

Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 4df84e8466242 ("scsi: elx: efct: Driver initialization routines")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-8-bigeasy@linutronix.de
---
 drivers/scsi/elx/efct/efct_driver.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/scsi/elx/efct/efct_driver.c b/drivers/scsi/elx/efct/efct_driver.c
index 1bd42f7..528399f 100644
--- a/drivers/scsi/elx/efct/efct_driver.c
+++ b/drivers/scsi/elx/efct/efct_driver.c
@@ -415,12 +415,6 @@ efct_intr_thread(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t
-efct_intr_msix(int irq, void *handle)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 static int
 efct_setup_msix(struct efct *efct, u32 num_intrs)
 {
@@ -450,7 +444,7 @@ efct_setup_msix(struct efct *efct, u32 num_intrs)
 		intr_ctx->index = i;
 
 		rc = request_threaded_irq(pci_irq_vector(efct->pci, i),
-					  efct_intr_msix, efct_intr_thread, 0,
+					  NULL, efct_intr_thread, IRQF_ONESHOT,
 					  EFCT_DRIVER_NAME, intr_ctx);
 		if (rc) {
 			dev_err(&efct->pci->dev,

[tip: irq/cleanups] Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     28abed6569c87eab9071ab56c64433c2f0d9ce51
Gitweb:        https://git.kernel.org/tip/28abed6569c87eab9071ab56c64433c2f0d9ce51
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:26 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:14 +01:00

Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler

There is no added value in btintel_pcie_msix_isr() compared to
irq_default_primary_handler().

Using a threaded interrupt without a dedicated primary handler mandates
the IRQF_ONESHOT flag to mask the interrupt source while the threaded
handler is active. Otherwise the interrupt can fire again before the
threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: c2b636b3f788d ("Bluetooth: btintel_pcie: Add support for PCIe transport")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-7-bigeasy@linutronix.de
---
 drivers/bluetooth/btintel_pcie.c |  9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c
index 2936b53..704767b 100644
--- a/drivers/bluetooth/btintel_pcie.c
+++ b/drivers/bluetooth/btintel_pcie.c
@@ -1431,11 +1431,6 @@ static void btintel_pcie_msix_rx_handle(struct btintel_pcie_data *data)
 	}
 }
 
-static irqreturn_t btintel_pcie_msix_isr(int irq, void *data)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 static inline bool btintel_pcie_is_rxq_empty(struct btintel_pcie_data *data)
 {
 	return data->ia.cr_hia[BTINTEL_PCIE_RXQ_NUM] == data->ia.cr_tia[BTINTEL_PCIE_RXQ_NUM];
@@ -1537,9 +1532,9 @@ static int btintel_pcie_setup_irq(struct btintel_pcie_data *data)
 
 		err = devm_request_threaded_irq(&data->pdev->dev,
 						msix_entry->vector,
-						btintel_pcie_msix_isr,
+						NULL,
 						btintel_pcie_irq_msix_handler,
-						IRQF_SHARED,
+						IRQF_ONESHOT | IRQF_SHARED,
 						KBUILD_MODNAME,
 						msix_entry);
 		if (err) {

[tip: irq/cleanups] bus: fsl-mc: Use default primary handler

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     29d4ff55fe9866be7afa3669ff54da0e4bfd5fb8
Gitweb:        https://git.kernel.org/tip/29d4ff55fe9866be7afa3669ff54da0e4bfd5fb8
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:25 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:14 +01:00

bus: fsl-mc: Use default primary handler

There is no added value in dprc_irq0_handler() compared to
irq_default_primary_handler().

Use the default primary interrupt handler by specifying NULL.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://patch.msgid.link/20260128095540.863589-6-bigeasy@linutronix.de
---
 drivers/bus/fsl-mc/dprc-driver.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/bus/fsl-mc/dprc-driver.c b/drivers/bus/fsl-mc/dprc-driver.c
index c63a7e6..db67442 100644
--- a/drivers/bus/fsl-mc/dprc-driver.c
+++ b/drivers/bus/fsl-mc/dprc-driver.c
@@ -381,17 +381,6 @@ int dprc_scan_container(struct fsl_mc_device *mc_bus_dev,
 EXPORT_SYMBOL_GPL(dprc_scan_container);
 
 /**
- * dprc_irq0_handler - Regular ISR for DPRC interrupt 0
- *
- * @irq_num: IRQ number of the interrupt being handled
- * @arg: Pointer to device structure
- */
-static irqreturn_t dprc_irq0_handler(int irq_num, void *arg)
-{
-	return IRQ_WAKE_THREAD;
-}
-
-/**
  * dprc_irq0_handler_thread - Handler thread function for DPRC interrupt 0
  *
  * @irq_num: IRQ number of the interrupt being handled
@@ -527,7 +516,7 @@ static int register_dprc_irq_handler(struct fsl_mc_device *mc_dev)
 	 */
 	error = devm_request_threaded_irq(&mc_dev->dev,
 					  irq->virq,
-					  dprc_irq0_handler,
+					  NULL,
 					  dprc_irq0_handler_thread,
 					  IRQF_NO_SUSPEND | IRQF_ONESHOT,
 					  dev_name(&mc_dev->dev),

[tip: irq/cleanups] mailbox: bcm-ferxrm-mailbox: Use default primary handler

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     03843d95a4a4e0ba22ad4fcda65ccf21822b104c
Gitweb:        https://git.kernel.org/tip/03843d95a4a4e0ba22ad4fcda65ccf21822b104c
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:24 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:14 +01:00

mailbox: bcm-ferxrm-mailbox: Use default primary handler

request_threaded_irq() is invoked with a primary and a secondary handler
and no flags are passed. The primary handler is the same as
irq_default_primary_handler() so there is no need to have an identical
copy.

The lack of the IRQF_ONESHOT flag can be dangerous because the interrupt
source is not masked while the threaded handler is active. This means,
especially on LEVEL typed interrupt lines, the interrupt can fire again
before the threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary handler
is done.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-5-bigeasy@linutronix.de
---
 drivers/mailbox/bcm-flexrm-mailbox.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index 41f79e5..4255fef 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1173,14 +1173,6 @@ static int flexrm_debugfs_stats_show(struct seq_file *file, void *offset)
 
 /* ====== FlexRM interrupt handler ===== */
 
-static irqreturn_t flexrm_irq_event(int irq, void *dev_id)
-{
-	/* We only have MSI for completions so just wakeup IRQ thread */
-	/* Ring related errors will be informed via completion descriptors */
-
-	return IRQ_WAKE_THREAD;
-}
-
 static irqreturn_t flexrm_irq_thread(int irq, void *dev_id)
 {
 	flexrm_process_completions(dev_id);
@@ -1271,10 +1263,8 @@ static int flexrm_startup(struct mbox_chan *chan)
 		ret = -ENODEV;
 		goto fail_free_cmpl_memory;
 	}
-	ret = request_threaded_irq(ring->irq,
-				   flexrm_irq_event,
-				   flexrm_irq_thread,
-				   0, dev_name(ring->mbox->dev), ring);
+	ret = request_threaded_irq(ring->irq, NULL, flexrm_irq_thread,
+				   IRQF_ONESHOT, dev_name(ring->mbox->dev), ring);
 	if (ret) {
 		dev_err(ring->mbox->dev,
 			"failed to request ring%d IRQ\n", ring->num);

[tip: irq/cleanups] iommu/amd: Use core's primary handler and set IRQF_ONESHOT

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     5bfcdccb4d18d3909b7f87942be67fd6bdc00c1d
Gitweb:        https://git.kernel.org/tip/5bfcdccb4d18d3909b7f87942be67fd6bdc00c1d
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:23 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:13 +01:00

iommu/amd: Use core's primary handler and set IRQF_ONESHOT

request_threaded_irq() is invoked with a primary and a secondary handler
and no flags are passed. The primary handler is the same as
irq_default_primary_handler() so there is no need to have an identical
copy.

The lack of the IRQF_ONESHOT can be dangerous because the interrupt
source is not masked while the threaded handler is active. This means,
especially on LEVEL typed interrupt lines, the interrupt can fire again
before the threaded handler had a chance to run.

Use the default primary interrupt handler by specifying NULL and set
IRQF_ONESHOT so the interrupt source is masked until the secondary
handler is done.

Fixes: 72fe00f01f9a3 ("x86/amd-iommu: Use threaded interupt handler")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-4-bigeasy@linutronix.de
---
 drivers/iommu/amd/amd_iommu.h |  1 -
 drivers/iommu/amd/init.c      | 12 ++++--------
 drivers/iommu/amd/iommu.c     |  5 -----
 3 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index b742ef1..df1c238 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -15,7 +15,6 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_evtlog(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_pprlog(int irq, void *data);
 irqreturn_t amd_iommu_int_thread_galog(int irq, void *data);
-irqreturn_t amd_iommu_int_handler(int irq, void *data);
 void amd_iommu_restart_log(struct amd_iommu *iommu, const char *evt_type,
 			   u8 cntrl_intr, u8 cntrl_log,
 			   u32 status_run_mask, u32 status_overflow_mask);
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 384c90b..62a7a71 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -2356,12 +2356,8 @@ static int iommu_setup_msi(struct amd_iommu *iommu)
 	if (r)
 		return r;
 
-	r = request_threaded_irq(iommu->dev->irq,
-				 amd_iommu_int_handler,
-				 amd_iommu_int_thread,
-				 0, "AMD-Vi",
-				 iommu);
-
+	r = request_threaded_irq(iommu->dev->irq, NULL, amd_iommu_int_thread,
+				 IRQF_ONESHOT, "AMD-Vi", iommu);
 	if (r) {
 		pci_disable_msi(iommu->dev);
 		return r;
@@ -2535,8 +2531,8 @@ static int __iommu_setup_intcapxt(struct amd_iommu *iommu, const char *devname,
 		return irq;
 	}
 
-	ret = request_threaded_irq(irq, amd_iommu_int_handler,
-				   thread_fn, 0, devname, iommu);
+	ret = request_threaded_irq(irq, NULL, thread_fn, IRQF_ONESHOT, devname,
+				   iommu);
 	if (ret) {
 		irq_domain_free_irqs(irq, 1);
 		irq_domain_remove(domain);
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 5d45795..bd57785 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1151,11 +1151,6 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-irqreturn_t amd_iommu_int_handler(int irq, void *data)
-{
-	return IRQ_WAKE_THREAD;
-}
-
 /****************************************************************************
  *
  * IOMMU command queuing functions

[tip: irq/cleanups] platform/x86: int0002: Remove IRQF_ONESHOT from request_irq()

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     f6bc712877f24dc89bdfd7bdbf1a32f3b9960b34
Gitweb:        https://git.kernel.org/tip/f6bc712877f24dc89bdfd7bdbf1a32f3b9960b34
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:22 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:13 +01:00

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 cannot fire (again)
while its handler is running.

The flag also prevents 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.

Fixes: 8f812373d1958 ("platform/x86: intel: int0002_vgpio: Pass IRQF_ONESHOT to request_irq()")
Reported-by: Borah, Chaitanya Kumar <chaitanya.kumar.borah@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://patch.msgid.link/20260128095540.863589-3-bigeasy@linutronix.de
Closes: https://lore.kernel.org/all/555f1c56-0f74-41bf-8bd2-6217e0aab0c6@intel.com
---
 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 6f5629d..562e880 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;

[tip: irq/cleanups] genirq: Set IRQF_COND_ONESHOT in devm_request_irq().

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     943b052ded21feb84f293d40b06af3181cd0d0d7
Gitweb:        https://git.kernel.org/tip/943b052ded21feb84f293d40b06af3181cd0d0d7
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:21 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Sun, 01 Feb 2026 17:37:13 +01:00

genirq: Set IRQF_COND_ONESHOT in devm_request_irq().

The flag IRQF_COND_ONESHOT was already force-added to request_irq() because
the ACPI SCI interrupt handler is using the IRQF_ONESHOT flag which breaks
all shared handlers.

devm_request_irq() needs the same change since some users, such as
int0002_vgpio, are using this function instead.

Add IRQF_COND_ONESHOT to the flags passed to devm_request_irq().

Fixes: c37927a203fa2 ("genirq: Set IRQF_COND_ONESHOT in request_irq()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-2-bigeasy@linutronix.de
---
 include/linux/interrupt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 266f2b3..b2bb878 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -228,7 +228,7 @@ static inline int __must_check
 devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler,
 		 unsigned long irqflags, const char *devname, void *dev_id)
 {
-	return devm_request_threaded_irq(dev, irq, handler, NULL, irqflags,
+	return devm_request_threaded_irq(dev, irq, handler, NULL, irqflags | IRQF_COND_ONESHOT,
 					 devname, dev_id);
 }
 

Re: [PATCH v2 04/20] mailbox: bcm-ferxrm-mailbox: Use default primary handler

[Jassi Brar]

On Wed, Jan 28, 2026 at 3:55 AM Sebastian Andrzej Siewior
<bigeasy@linutronix.de> wrote:
>
> request_threaded_irq() is invoked with a primary and a secondary handler
> and no flags are passed. The primary handler is the same as
> irq_default_primary_handler() so there is no need to have an identical
> copy.
> The lack of the IRQF_ONESHOT can be dangerous because the interrupt
> source is not masked while the threaded handler is active. This means,
> especially on LEVEL typed interrupt lines, the interrupt can fire again
> before the threaded handler had a chance to run.
>
> Use the default primary interrupt handler by specifying NULL and set
> IRQF_ONESHOT so the interrupt source is masked until the secondary
> handler is done.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

Applied to mailbox/for-next
Thanks
Jassi

[tip: irq/cleanups] media: pci: mg4b: Use IRQF_NO_THREAD

[tip-bot2 for Sebastian Andrzej Siewior]

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

Commit-ID:     ef92b98f5f6758a049898b53aa30476010db04fa
Gitweb:        https://git.kernel.org/tip/ef92b98f5f6758a049898b53aa30476010db04fa
Author:        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate:    Wed, 28 Jan 2026 10:55:40 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Tue, 03 Feb 2026 09:20:55 +01:00

media: pci: mg4b: Use IRQF_NO_THREAD

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

Use IRQF_NO_THREAD to forbid forced-threading.

Fixes: 0ab13674a9bd1 ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260128095540.863589-21-bigeasy@linutronix.de
---
 drivers/media/pci/mgb4/mgb4_trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mgb4/mgb4_trigger.c b/drivers/media/pci/mgb4/mgb4_trigger.c
index 4f9a359..70cad32 100644
--- a/drivers/media/pci/mgb4/mgb4_trigger.c
+++ b/drivers/media/pci/mgb4/mgb4_trigger.c
@@ -115,7 +115,7 @@ static int probe_trigger(struct iio_dev *indio_dev, int irq)
 	if (!st->trig)
 		return -ENOMEM;
 
-	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, 0,
+	ret = request_irq(irq, &iio_trigger_generic_data_rdy_poll, IRQF_NO_THREAD,
 			  "mgb4-trigger", st->trig);
 	if (ret)
 		goto error_free_trig;

Re: [PATCH v2 20/20] media: pci: mg4b: Use IRQF_NO_THREAD

[Martin Tůma]

Tested-by: Martin Tůma <martin.tuma@digiteqautomotive.com>