From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 30 Jan 2006 17:37:35 +0200
From: Heikki Lindholm <holindho@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] [BUG?] dead code in ipipe_grab_irq
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To: Anders Blomdell <anders.blomdell@domain.hid>
Cc: xenomai@xenomai.org

Anders Blomdell kirjoitti:
> In the following code (ppc), shouldn't first be either declared static 
> or deleted? To me it looks like first is always equal to one when the 
> else clause is evaluated.

You're right. "first" doesn't need to be there at all, it's probably an 
old copy of something in the kernel.

> asmlinkage int __ipipe_grab_irq(struct pt_regs *regs)
> {
>         extern int ppc_spurious_interrupts;
>         ipipe_declare_cpuid;
>         int irq, first = 1;
> 
>         if ((irq = ppc_md.get_irq(regs)) >= 0) {
>                 __ipipe_handle_irq(irq, regs);
>                 first = 0;
>         } else if (irq != -2 && first)
>                 ppc_spurious_interrupts++;
> 
>         ipipe_load_cpuid();
> 
>         return (ipipe_percpu_domain[cpuid] == ipipe_root_domain &&
>                 !test_bit(IPIPE_STALL_FLAG,
>                           &ipipe_root_domain->cpudata[cpuid].status));
> }
> 
> 
> Regards
> 
> Anders Blomdell
> 
> 
> 
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