linux-kernel - Re: [PATCH 2/3] kgdb, mips: add arch support for the kernel's kgdb core

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Date:	Sat, 19 Jul 2008 02:31:16 +0900 (JST)
From:	Atsushi Nemoto <anemo@....ocn.ne.jp>
To:	jason.wessel@...driver.com
Cc:	linux-kernel@...r.kernel.org, ralf@...ux-mips.org,
	linux-mips@...ux-mips.org
Subject: Re: [PATCH 2/3] kgdb, mips: add arch support for the kernel's kgdb
 core

On Fri, 18 Jul 2008 12:08:47 -0500, Jason Wessel <jason.wessel@...driver.com> wrote:
> The new kgdb architecture specific handler registers and unregisters
> dynamically for exceptions depending on when you configure a kgdb I/O
> driver.  Asside from initializing the exceptions earlier in the boot
> process, kgdb should have no impact on a device when it is compiled in
> so long as an I/O module is not configured for use.
...
> @@ -133,5 +138,15 @@ void __init init_IRQ(void)
>  	for (i = 0; i < NR_IRQS; i++)
>  		set_irq_noprobe(i);
>  
> +#ifdef CONFIG_KGDB
> +	if (kgdb_early_setup)
> +		return;
> +#endif
> +
>  	arch_init_irq();
> +
> +#ifdef CONFIG_KGDB
> +	if (!kgdb_early_setup)
> +		kgdb_early_setup = 1;
> +#endif
>  }

The kgdb_ealy_setup check should be at beginning of init_IRQ (before
set_irq_noprobe loop)?

---
Atsushi Nemoto
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