linux-kernel - Re: [patch/rfc 1/4] GPIO implementation framework

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Date:	Sat, 17 Nov 2007 11:38:55 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	David Brownell <david-b@...bell.net>
Cc:	"eric miao" <eric.y.miao@...il.com>,
	"Linux Kernel list" <linux-kernel@...r.kernel.org>,
	"Felipe Balbi" <felipebalbi@...rs.sourceforge.net>,
	"Bill Gatliff" <bgat@...lgatliff.com>,
	"Haavard Skinnemoen" <hskinnemoen@...el.com>,
	"Andrew Victor" <andrew@...people.com>,
	"Tony Lindgren" <tony@...mide.com>,
	"Kevin Hilman" <khilman@...sta.com>,
	"Paul Mundt" <lethal@...ux-sh.org>,
	"Ben Dooks" <ben@...nity.fluff.org>
Subject: Re: [patch/rfc 1/4] GPIO implementation framework

On Tue, 13 Nov 2007 20:36:13 -0800, David Brownell wrote:
> On Tuesday 13 November 2007, eric miao wrote:
> >  	if (!requested)
> > -		printk(KERN_DEBUG "GPIO-%d autorequested\n",
> > -				chip->base + offset);
> > +		pr_debug("GPIO-%d autorequested\n", gpio);
> 
> Leave the printk in ... this is the sort of thing we want
> to see fixed, which becomes unlikely once you hide such
> diagnostics.  And for that matter, what would be enabling
> the "-DDEBUG" that would trigger a pr_debug() message?

The original code isn't correct either. Either this is a debug message
and indeed pr_debug() should be used, or it's not and KERN_DEBUG should
be replaced by a lower log level.

-- 
Jean Delvare
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