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

From	Sebastian Andrzej Siewior <sebastian.siewior@linutronix.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH] sc16is7xx: drop bogus use of IRQF_ONESHOT
Date	2016-09-09 15:20 +0200
Message-ID	<sftSN-3gY-1@gated-at.bofh.it> (permalink)
References	<r3AyU-uN-61@gated-at.bofh.it> <r3AyU-uN-59@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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

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Re: [PATCH] sc16is7xx: drop bogus use of IRQF_ONESHOT Sebastian Andrzej Siewior <sebastian.siewior@linutronix.de> - 2016-09-09 15:20 +0200

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