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Date: Wed, 9 Oct 2002 12:19:24 +0100
From: Jamie Lokier <lk@tantalophile.demon.co.uk>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Christer Weinigel <christer@weinigel.se>, simon@baydel.com,
       "David S. Miller" <davem@redhat.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: The end of embedded Linux?
Message-ID: <20021009111924.GA6939@bjl1.asuk.net>
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Alan Cox wrote:
> On Mon, 2002-10-07 at 23:22, Christer Weinigel wrote:
> > #define printk_debug(xxx...) printk(KERN_DEBUG, xxx...)
> > #define printk_info(xxx...) printk(KERN_INFO, xx...)
> > #else
> > #define printk_debug(xxx...) do { } while (0)
> > #define printk_info(xxx...) do { } while (0)
> 
> That might make a lot of sense. The macros in question would need a bit
> of hand checking for side effects in calls but yes this is the kind of
> thing that can be good

You can write the macros so the side effects are still executed if you
prefer.  Untested:

#define printk_debug(xxx...) do { (void) (xxx ## , 0); } while (0)

-- Jamie

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