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linux/drivers/iio
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Lars-Peter Clausen 0449fc4eea iio: sysfs-trigger: Mark irq_work to expire in hardirq context 
Mark the IIO sysfs-trigger irq_work with IRQ_WORK_HARD_IRQ to ensure that
it is always executed in hard interrupt context, even with PREEMPT_RT=y.

The IIO sysfs-trigger irq_work needs to run in hard interrupt context since
it will end up calling generic_handle_irq() which has the requirement to
run in hard interrupt context.

Note that the IRQ_WORK_HARD_IRQ flag, while it exists, does not seem to do
anything in the mainline kernel yet. It does have an effect in the RT
patchset though and presumably this is sooner or later going to be added to
mainline as well.

Reported-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20201117103751.16131-2-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-12-03 19:40:30 +00:00
..
accel iio: accel: bmc150: Get mount-matrix from ACPI 2020-12-03 19:40:30 +00:00
adc iio:adc:ti-ads124s08: Fix alignment and data leak issues. 2020-12-03 19:40:29 +00:00
afe iio: afe: iio-rescale: Simplify with dev_err_probe() 2020-09-03 19:40:50 +01:00
amplifiers iio: amplifiers: hmc425a: Simplify with dev_err_probe() 2020-09-03 19:40:50 +01:00
buffer iio: buffer: Return error if no callback is given 2020-12-03 19:32:40 +00:00
chemical Second set of features and cleanups for IIO in 5.10 2020-09-22 09:45:11 +02:00
common First set of new device support, features and cleanups for IIO in the 5.11 cycle 2020-11-24 08:30:08 +01:00
dac iio: dac: ad7303: remove platform data header 2020-10-10 18:03:28 +01:00
dummy iio: dummy: iio_dummy_evgen: Demote file header and supply description for 'irq_sim_domain' 2020-09-21 18:41:36 +01:00
frequency iio: frequency: adf4350: Replace indio_dev->mlock with own device lock 2020-09-16 18:58:01 +01:00
gyro iio:gyro:mpu3050 Treat otp value as a __le64 and use FIELD_GET() to break up 2020-12-03 19:40:29 +00:00
health Second set of features and cleanups for IIO in 5.10 2020-09-22 09:45:11 +02:00
humidity iio: humidity: hts221: add vdd voltage regulator 2020-12-03 19:32:39 +00:00
imu iio:imu:bmi160: Fix alignment and data leak issues 2020-12-03 19:40:28 +00:00
light iio:light:st_uvis25: Fix timestamp alignment and prevent data leak. 2020-12-03 19:40:27 +00:00
magnetometer iio:magnetometer:mag3110: Fix alignment and data leak issues. 2020-12-03 19:40:27 +00:00
multiplexer iio: multiplexer: iio-mux: Simplify with dev_err_probe() 2020-09-03 19:40:51 +01:00
orientation iio: remove left-over parent assignments 2020-06-14 11:50:04 +01:00
position iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
potentiometer iio: potentiometer: ad5272: Correct polarity of reset 2020-12-03 19:32:42 +00:00
potentiostat iio:potentiostat:lmp91000: Drop of_match_ptr and use generic fw accessors 2020-09-21 18:41:29 +01:00
pressure iio:pressure:mpl3115: Force alignment of buffer 2020-12-03 19:40:28 +00:00
proximity iio: proximity: vl53l0x-i2c add i2c_device_id 2020-11-01 15:28:32 +00:00
resolver iio:resolver:ad2s1200: Drop of_match_ptr protection 2020-09-21 18:41:31 +01:00
temperature iio: ltc2983: Fix of_node refcounting 2020-09-29 17:34:18 +01:00
trigger iio: sysfs-trigger: Mark irq_work to expire in hardirq context 2020-12-03 19:40:30 +00:00
iio_core.h iio: core: centralize ioctl() calls to the main chardev 2020-11-14 15:31:25 +00:00
iio_core_trigger.h iio: trigger: make stub functions static inline 2020-08-22 10:53:18 +01:00
industrialio-buffer.c iio: buffer: Fix demux update 2020-12-03 19:32:44 +00:00
industrialio-configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-core.c iio: core: Simplify iio_format_list() 2020-12-03 19:32:44 +00:00
industrialio-event.c iio: core: centralize ioctl() calls to the main chardev 2020-11-14 15:31:25 +00:00
industrialio-sw-device.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-sw-trigger.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-trigger.c iio:trigger: rename try_reenable() to reenable() plus return void 2020-12-03 19:40:26 +00:00
industrialio-triggered-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inkern.c io:core: In iio_map_array_register() cleanup in case of error 2020-12-03 19:40:25 +00:00
Kconfig iio: Kconfig: Provide title for IIO_TRIGGERED_EVENT symbol 2020-09-29 17:27:08 +01:00
Makefile iio: position: Add support for Azoteq IQS624/625 angle sensors 2020-03-27 08:25:59 +00:00
TODO iio: add a TODO 2020-03-08 17:28:53 +00:00