linux-kernel - Re: Fwd: [PATCH] Fix arch/i386/kernel/nmi.c - 'unknown_nmi_panic_callback' declared 'static' but never defined warning

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Date:	Wed, 25 Jul 2007 16:51:27 +0200
From:	Gabriel C <crazy@...pmylinux.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Ingo Molnar <mingo@...hat.com>
Subject: Re: Fwd: [PATCH] Fix arch/i386/kernel/nmi.c - 'unknown_nmi_panic_callback'
 declared 'static' but never defined warning

Gabriel C wrote:
> ---------- Forwarded message ----------
> From: Andrew Morton <akpm@...ux-foundation.org>
> Date: 25.07.2007 03:36
> Subject: Re: [PATCH] Fix arch/i386/kernel/nmi.c -
> 'unknown_nmi_panic_callback' declared 'static' but never defined warning
> To: Gabriel C <nix.or.die@...glemail.com>
> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Ingo Molnar <
> mingo@...hat.com>, Andi Kleen <ak@...e.de>
> 
> On Sun, 22 Jul 2007 21:20:38 +0200 Gabriel C <nix.or.die@...glemail.com>
> wrote:
> 
>> I get this warning when CONFIG_SYSCTL is not set :
>>
>> ...
>>
>> arch/i386/kernel/nmi.c:52: warning: 'unknown_nmi_panic_callback' declared
> 'static' but never defined
>> ...
>>
>> Signed-off-by: Gabriel Craciunescu <nix.or.die@...glemail.com>
>>
>> ---
>>
>> diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
>> index 03b7f55..cf11121 100644
>> --- a/arch/i386/kernel/nmi.c
>> +++ b/arch/i386/kernel/nmi.c
>> @@ -49,8 +49,9 @@ static unsigned int nmi_hz = HZ;
>>  static DEFINE_PER_CPU(short, wd_enabled);
>>
>>  /* local prototypes */
>> +#ifdef CONFIG_SYSCTL
>>  static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu);
>> -
>> +#endif
>>  static int endflag __initdata = 0;
> 
> guys, please take a closer look at the code which you're changing?  We can
> obviously move do_nmi_callback() down to above
> __trigger_all_cpu_backtrace() and then do away with this declaration
> altogether.
> 

I will try to do it better next time , sorry.

Oh and I just realized the fix ( whatever it will be at least ) need be done for arch/x86_64/kernel/nmi.c too.


Regards,

Gabriel




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