Re: [PATCH] iio: trigger: sysfs: Disable irqs before calling iio_trigger_poll()
From: Lars-Peter Clausen
Date: Sun Aug 02 2020 - 11:06:00 EST
On 8/1/20 6:02 PM, Jonathan Cameron wrote:
On Mon, 27 Jul 2020 16:57:13 +0200
Christian Eggers <ceggers@xxxxxxx> wrote:
iio_trigger_poll() calls generic_handle_irq(). This function expects to
Was there an error or warning that lead to this patch?
be run with local IRQs disabled.
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