linux-kernel - Re: [PATCH V2 2/2] thinkpad_acpi: Convert printks to pr

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Date:	Mon, 04 Apr 2011 11:10:13 -0700
From:	Joe Perches <joe@...ches.com>
To:	sedat.dilek@...il.com
Cc:	Matthew Garrett <mjg@...hat.com>,
	Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	ibm-acpi-devel@...ts.sourceforge.net,
	platform-driver-x86@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 2/2] thinkpad_acpi: Convert printks to pr_<level>

On Mon, 2011-04-04 at 20:03 +0200, Sedat Dilek wrote:
> On Mon, Apr 4, 2011 at 7:06 PM, Joe Perches <joe@...ches.com> wrote:
> > diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> [...]
> >  #ifdef CONFIG_THINKPAD_ACPI_DEBUG
> >  #define vdbg_printk dbg_printk
> >  static const char *str_supported(int is_supported);
> >  #else
> > -#define vdbg_printk(a_dbg_level, format, arg...) \
> > -       do { } while (0)
> > +static inline const char *str_supported(int is_supported) { return ""; }
> > +#define vdbg_printk(a_dbg_level, format, arg...)       \
> > +       no_printk(format, ##arg)
> >  #endif
> 
> Should be...
> +       do { } while (0)
> ...not...
> +       no_printk(format, ##arg)

I disagree.  No printk serves as a mechanism to verify
printk arguments when !CONFIG_THINKPAD_ACPI_DEBUG.


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