linux-kernel - Re: Bug in "genirq: record trigger type"

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Message-Id: <1224574343.7654.244.camel@pasglop>
Date:	Tue, 21 Oct 2008 18:32:23 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Yinghai Lu <yinghai@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linuxppc-dev list <linuxppc-dev@...abs.org>
Subject: Re: Bug in "genirq: record trigger type"

On Tue, 2008-10-21 at 09:28 +0200, Ingo Molnar wrote:

> From: Chris Friesen <cfriesen@...tel.com>
> Date: Mon, 20 Oct 2008 12:41:58 -0600
> Subject: [PATCH] genirq: fix set_irq_type() when recording trigger type
> 
> In set_irq_type() we want to pass the type rather than the current
> interrupt state.
> 
> Signed-off-by: Chris Friesen <cfriesen@...tel.com>
> Signed-off-by: Ingo Molnar <mingo@...e.hu>

Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>

> ---
>  kernel/irq/chip.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
> index 4895fde..3de6ea3 100644
> --- a/kernel/irq/chip.c
> +++ b/kernel/irq/chip.c
> @@ -127,7 +127,7 @@ int set_irq_type(unsigned int irq, unsigned int type)
>  		return 0;
>  
>  	spin_lock_irqsave(&desc->lock, flags);
> -	ret = __irq_set_trigger(desc, irq, flags);
> +	ret = __irq_set_trigger(desc, irq, type);
>  	spin_unlock_irqrestore(&desc->lock, flags);
>  	return ret;
>  }

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