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Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts

From Eric Anholt <eric@anholt.net>
Newsgroups linux.kernel
Subject Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts
Date 2016-10-28 18:00 +0200
Message-ID <sxhJv-1LS-17@gated-at.bofh.it> (permalink)
References <swXB7-5us-13@gated-at.bofh.it> <sxdcR-7xJ-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Thomas Gleixner <tglx@linutronix.de> writes:

> On Thu, 27 Oct 2016, Eric Anholt wrote:
>
>> From: Phil Elwell <phil@raspberrypi.org>
>> 
>> The old arch-specific IRQ macros included a dsb to ensure the
>> write to clear the mailbox interrupt completed before returning
>> from the interrupt. The BCM2836 irqchip driver needs the same
>> precaution to avoid spurious interrupts.
>
> This is missing a fixes tag. I have no idea when that problem was
> introduced, so I have no way to decide whether this needs to be tagged
> stable or not.

This code has been there since introduction of the driver, so:

Fixes: 1a15aaa998dc ("irqchip: Add bcm2836 interrupt controller for Raspberry Pi 2")

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Thread

[PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Eric Anholt <eric@anholt.net> - 2016-10-27 20:30 +0200
  Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Thomas Gleixner <tglx@linutronix.de> - 2016-10-28 13:10 +0200
    Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Eric Anholt <eric@anholt.net> - 2016-10-28 18:00 +0200
      Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Thomas Gleixner <tglx@linutronix.de> - 2016-10-28 22:40 +0200
        Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Eric Anholt <eric@anholt.net> - 2016-10-31 19:00 +0100
          Re: [PATCH v2] irqchip/bcm2836: Prevent spurious interrupts Thomas Gleixner <tglx@linutronix.de> - 2016-10-31 19:20 +0100

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