Thread (7 messages) 7 messages, 4 authors, 2016-09-09

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

From: Sebastian Andrzej Siewior <hidden>
Date: 2016-09-09 13:14:40
Also in: linux-serial, lkml

Possibly related (same subject, not in this thread)

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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