linux-kernel - Re: [PATCH v2] of/address: replace printk() with pr_debug() / pr

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Message-ID: <1449594231.13275.2.camel@perches.com>
Date:	Tue, 08 Dec 2015 09:03:51 -0800
From:	Joe Perches <joe@...ches.com>
To:	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	devicetree@...r.kernel.org
Cc:	Frank Rowand <frowand.list@...il.com>,
	Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...aro.org>
Subject: Re: [PATCH v2] of/address: replace printk() with pr_debug() /
 pr_err()

On Tue, 2015-12-08 at 08:16 -0800, Joe Perches wrote:
> On Wed, 2015-12-09 at 01:07 +0900, Masahiro Yamada wrote:
> > Trivial changes suggested by checkpatch.pl.
> []
> > diff --git a/drivers/of/address.c b/drivers/of/address.c
> []
> > @@ -23,7 +23,7 @@ static int __of_address_to_resource(struct device_node *dev,
> >  #ifdef DEBUG
> >  static void of_dump_addr(const char *s, const __be32 *addr, int na)
> >  {
> > -	printk(KERN_DEBUG "%s", s);
> > +	pr_debug("%s", s);
> >  	while (na--)
> >  		printk(" %08x", be32_to_cpu(*(addr++)));
> >  	printk("\n");
> 
> mixing pr_debug and printk doesn't make much sense.
> 
> It might be nicer to use
> 
> static void of_dumpaddr(const char *s, const __be32 *addr, int na)
> {
> #ifdef DEBUG
> 	...
> #endif
> }
> 
> to avoid the other static declaration

Or more simply:

static void of_dumpaddr(const char *s, const __be32 *addr, int na)
{
	print_hex_dump_debug(s, DUMP_PREFIX_NONE, 16, 1,
			     addr, na * sizeof(__be32), false);
}
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