Messages in this thread | | | Subject | Re: [PATCH] iio: trigger: sysfs: Disable irqs before calling iio_trigger_poll() | From | Lars-Peter Clausen <> | Date | Sun, 2 Aug 2020 17:05:51 +0200 |
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On 8/1/20 6:02 PM, Jonathan Cameron wrote: > On Mon, 27 Jul 2020 16:57:13 +0200 > Christian Eggers <ceggers@arri.de> wrote: > >> iio_trigger_poll() calls generic_handle_irq(). This function expects to >> be run with local IRQs disabled. > Was there an error or warning that lead to this patch? > Or can you point to what call in generic_handle_irq is making the > assumption that we are breaking? > > Given this is using the irq_work framework I'm wondering if this is > a more general problem? > > Basically more info please!
There is this series https://lkml.org/lkml/2020/3/6/433 which causes generic_handle_irq() to issue an warning if it is called with IRQs on, for a IRQ controller that can't handle it.
But I'm not convinced this applies to the IIO code, since this is a purely virtual interrupt and is not interfering with any interrupt controller hardware.
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