linux-kernel - Re: [PATCH v2 0/4] lib: list_sort: Various minor improvements

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Message-Id: <20140625153246.3d3dbda781ce1af5524269ab@linux-foundation.org>
Date:	Wed, 25 Jun 2014 15:32:46 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	Don Mullis <don.mullis@...il.com>,
	Dave Chinner <david@...morbit.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/4] lib: list_sort: Various minor improvements

On Thu, 26 Jun 2014 00:28:18 +0200 Rasmus Villemoes <linux@...musvillemoes.dk> wrote:

> > We may as well do the pr_foo() conversion as well.  As often happens,
> > the results are quite pleasing.
> >
> > --- a/lib/list_sort.c~lib-list_sortc-convert-to-pr_foo
> > +++ a/lib/list_sort.c
> > @@ -1,3 +1,6 @@
> > +
> > +#define pr_fmt(fmt) "list_sort_test: " fmt
> > +
> >  #include <linux/kernel.h>
> >  #include <linux/module.h>
> >  #include <linux/list_sort.h>
> > @@ -125,9 +128,8 @@ void list_sort(void *priv, struct list_h
> >  		}
> >  		if (lev > max_lev) {
> >  			if (unlikely(lev >= ARRAY_SIZE(part)-1)) {
> > -				printk_once(KERN_DEBUG "list passed to"
> > -					" list_sort() too long for"
> > -					" efficiency\n");
> > +				pr_debug_once("list passed to list_sort() too "
> > +					      "long for efficiency\n");
> 
> Minor comment: Won't this end up saying "list_sort_test: list passed to
> ...", despite the list coming from a 'real' user? Maybe change the first
> #define to '"list_sort: " fmt', the above message to "passed list too
> long for efficiency", and redefine pr_fmt right after #ifdef
> CONFIG_TEST_LIST_SORT.

Yeah, I was hoping nobody would notice that ;)

How about just

		printk_once(KERN_DEBUG "list too long for efficiency\n");


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