linux-kernel - Re: [PATCH v2 1/2] Replace if statement with WARN_ON_ONCE() in cmci

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Message-ID: <20121023095234.GA22715@liondog.tnic>
Date:	Tue, 23 Oct 2012 11:52:34 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	tony.luck@...el.com, tglx@...utronix.de, mingo@...hat.com,
	hpa@...or.com, miaox@...fujitsu.com, laijs@...fujitsu.com,
	wency@...fujitsu.com, x86@...nel.org, linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] Replace if statement with WARN_ON_ONCE() in
 cmci_rediscover().

On Tue, Oct 23, 2012 at 10:55:13AM +0800, Tang Chen wrote:
> So, how about warn once, and continue:
> 	if (cpu == dying) {
> 		WARN_ON_ONCE(cpu == dying);
> 		continue;
> 	}
> 
> or, use BUG_ON() instead ?

Let me ask you again, but I want you to think real hard this time:

"Why do we need to warn? What good would that bring us?"

-- 
Regards/Gruss,
    Boris.
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