linux-kernel - Re: [PATCH 5/5] lib: Add error string support to printks

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Date:	Fri, 20 Sep 2013 14:07:38 +0100
From:	David Howells <dhowells@...hat.com>
To:	Joe Perches <joe@...ches.com>
Cc:	dhowells@...hat.com, Daniel Santos <daniel.santos@...ox.com>,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Michal Marek <mmarek@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	George Spelvin <linux@...izon.com>
Subject: Re: [PATCH 5/5] lib: Add error string support to printks

Joe Perches <joe@...ches.com> wrote:

> > Yeah, I do agree, I just don't see how to do it without introducing 
> > unnecessary bloat.
> 
> I think the code size cost of %pE is pretty trivial
> compared to the log size/runtime cost.
> 
> I would not want to see it used generically.

I suspect he doesn't really need to implement a "strerror()" function but
should rather build it straight into printk()/vsprintf().

David
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