linux-kernel - Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers

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Date:	Mon, 20 Nov 2006 10:20:18 -0800
From:	Daniel Walker <dwalker@...sta.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi
	type IRQ handlers

On Mon, 2006-11-20 at 18:55 +0100, Ingo Molnar wrote:
> Index: linux/kernel/irq/chip.c
> ===================================================================
> --- linux.orig/kernel/irq/chip.c
> +++ linux/kernel/irq/chip.c
> @@ -238,8 +238,10 @@ static inline void mask_ack_irq(struct i
>         if (desc->chip->mask_ack)
>                 desc->chip->mask_ack(irq);
>         else {
> -               desc->chip->mask(irq);
> -               desc->chip->ack(irq);
> +               if (desc->chip->mask)
> +                       desc->chip->mask(irq);
> +               if (desc->chip->mask)
> +                       desc->chip->ack(irq);
>         }
>  } 


Did you mean to check ->mask both times here?

Daniel

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