From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Tue, 22 Nov 2011 14:20:33 -0600
Subject: [U-Boot] [PATCH v3] arm: printf() is not available in some SPL
 configurations
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	<4ECB622A.3070408@gmail.com>
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On 11/22/2011 02:49 AM, Andreas Bie?mann wrote:
> Well, you can do it that way but I guess there are several places where
> printf() will be needed by some drivers in SPL. Therefore I think it is
> better to provide printf() for SPL than to ifdef out all the printf's.
> 
> So how about providing an empty
> 
> #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
> #define printf(x)
> #endif
> 
> somewhere in the SPL code?

Use an inline function instead so the arguments are consumed and it
doesn't cause unused-variable warnings.

-Scott