linux-kernel - Re: [S390] Use generic bug.

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Date:	Mon, 05 Mar 2007 14:56:29 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	schwidefsky@...ibm.com
Cc:	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	heiko.carstens@...ibm.com
Subject: Re: [S390] Use generic bug.

From: Martin Schwidefsky <schwidefsky@...ibm.com>
Date: Mon, 5 Mar 2007 23:43:54 +0100

> +	if (__builtin_constant_p(__ret_warn_on)) {	\
> +		if (__ret_warn_on)			\
> +			__EMIT_BUG(BUGFLAG_WARNING);	\

I see we'll have this construct on powerpc, parisc and now s390.

But if it's going to trigger essentially at compile time, I
think it's much better to BUILD_BUG_ON() in this case instead
of counting on the code path to actually run and the user to
notice and report the kernel log message.
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