linux-kernel - Re: [PATCH] of: Custom printk format specifier for device node

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Date:	Wed, 21 Jan 2015 09:52:07 -0800
From:	Joe Perches <joe@...ches.com>
To:	Pantelis Antoniou <panto@...oniou-consulting.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <robherring2@...il.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	linux-doc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of: Custom printk format specifier for device node

On Wed, 2015-01-21 at 19:39 +0200, Pantelis Antoniou wrote:
> Hi Joe,
> 
> > On Jan 21, 2015, at 19:37 , Joe Perches <joe@...ches.com> wrote:
> > 
> > On Wed, 2015-01-21 at 19:06 +0200, Pantelis Antoniou wrote:
> >> 90% of the usage of device node's full_name is printing it out
> >> in a kernel message. Preparing for the eventual delayed allocation
> >> introduce a custom printk format specifier that is both more
> >> compact and more pleasant to the eye.
> >> 
> >> For instance typical use is:
> >> 	pr_info("Frobbing node %s\n", node->full_name);
> >> 
> >> Which can be written now as:
> >> 	pr_info("Frobbing node %pO\n", node);
> > 
> > Still disliking use of %p0.
> > 
> 
> Choices are limited. And it’s pO not p0.

Yet another reason to dislike it.

> > This isn't pretty.  Perhaps there's a better way?
> > 
> 
> No there isn’t.

There always is.


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