Re: [PATCH] sc16is7xx: drop bogus use of IRQF_ONESHOT

From: Sebastian Andrzej Siewior
Date: Fri Sep 09 2016 - 09:14:44 EST


On 2016-02-18 11:26:12 [-0600], Josh Cartwright wrote:
> The use of IRQF_ONESHOT when registering an interrupt handler with
> request_irq() is non-sensical.
>
> Not only that, it also prevents the handler from being threaded when it
> otherwise should be w/ IRQ_FORCED_THREADING is enabled. This causes the
> following deadlock observed by Sean Nyekjaer on -rt:

So we this patch
http://lkml.iu.edu/hypermail/linux/kernel/1602.2/02637.html

sitting in -RT. Then someone posted
http://www.spinics.net/lists/linux-rt-users/msg14975.html
which depends on it.
Before I was are of the first patch, I posted
http://www.spinics.net/lists/linux-rt-users/msg14666.html

and nobody seems to care if anything of this gets merged upstream
where it belongs. Could some please carry this to Greg upstream?

Sebastian