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Date: Wed, 31 Jan 2018 09:21:34 +0200 (EET)
From: Meelis Roos <mroos@linux.ee>
To: Thomas Gleixner <tglx@linutronix.de>
cc: Linux Kernel list <linux-kernel@vger.kernel.org>, x86@kernel.org
Subject: Re: 4.15: WARNING: CPU: 3 PID: 258 at kernel/irq/chip.c:244
 __irq_startup+0x80/0x100
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> > Your supply of vintage hardware is amazing.

:-)

> Does the patch below fix the issue for you?

  CC      kernel/irq/autoprobe.o
kernel/irq/autoprobe.c: In function Ąprobe_irq_oną:
kernel/irq/autoprobe.c:74:8: error: void value not ignored as it ought to be
    if (irq_activate_and_startup(desc, IRQ_NORESEND))
        ^~~~~~~~~~~~~~~~~~~~~~~~
Just 
irq_activate_and_startup(desc, IRQ_NORESEND);

cures the warning and at least the first bootup was working otherwise 
too.

-- 
Meelis Roos (mroos@linux.ee)