linux-kernel - Re: [PATCH 2/3] powerpc: Bail out of KGDB when we've been triggered

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Date:	Wed, 22 Aug 2012 15:07:00 +0000
From:	Tabi Timur-B04825 <B04825@...escale.com>
To:	Tiejun Chen <tiejun.chen@...driver.com>
CC:	"benh@...nel.crashing.org" <benh@...nel.crashing.org>,
	"jason.wessel@...driver.com" <jason.wessel@...driver.com>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] powerpc: Bail out of KGDB when we've been triggered

On Wed, Aug 22, 2012 at 5:43 AM, Tiejun Chen <tiejun.chen@...driver.com> wrote:

> +int kgdb_skipexception(int exception, struct pt_regs *regs)
> +{
> +       if (kgdb_isremovedbreak(regs->nip))
> +               return 1;
> +
> +       return 0;
> +}

int kgdb_skipexception(int exception, struct pt_regs *regs)
{
        return !!kgdb_isremovedbreak(regs->nip));
}

If the caller only cares about zero vs. non-zero, you can drop the !!.

-- 
Timur Tabi
Linux kernel developer at Freescale
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