> > There is no extra interrupt when registering a shared interrupt handler > > since 2011. Update the Kconfig text to make it clear and to avoid wrong > > assumptions when debugging issues found by it. > > > > I'm not sure. > I have recently fixed a bug in the IIO sensor during ->probe() due to > an issued test interrupt exactly as soon as the handler is registered. $ git grep DEBUG_SHIRQ_FIXME kernel/irq/manage.c:#ifdef CONFIG_DEBUG_SHIRQ_FIXME There is no place to enable this code. Maybe your case was like Krzysztof's case where the issue turned out to be the extra interrupt on deregistering after a deferred probe? He thought it was the initial interrupt but it wasn't.
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