linux-kernel - Re: [PATCH 03/16] trivial: fix assorted "through" typos

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Message-Id: <20091101095208.10d57e8f.rdunlap@xenotime.net>
Date:	Sun, 1 Nov 2009 09:52:08 -0800
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Tilman Schmidt <tilman@...p.cc>
Cc:	Nigel Cunningham <ncunningham@...a.org.au>,
	André Goddard Rosa <andre.goddard@...il.com>,
	trivial@...nel.org, linux list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/16] trivial: fix assorted "through" typos

On Sat, 31 Oct 2009 13:11:29 +0100 Tilman Schmidt wrote:

> Am 31.10.2009 11:17 schrieb Nigel Cunningham:
> > I've only looked at this one, but something caught my eye...
> > 
> > André Goddard Rosa wrote:
> >> diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> >> b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> >> index f7b9cdc..b52c1f8 100644
> >> --- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> >> +++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> >> @@ -38,7 +38,7 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
> >>
> >>  #ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
> >>  	d_cache = CPLB_L1_CHBL;
> >> -#ifdef CONFIG_BFIN_EXTMEM_WRITETROUGH
> >> +#ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH
> >>  	d_cache |= CPLB_L1_AOW | CPLB_WT;
> >>  #endif
> >>  #endif
> > 
> > "Surely that can't be the only time?", I thought. But it is - all of the
> > other #ifdefs are spelled correctly, so you're probably fixing a
> > hard-to-find bug here! Good catch!
> > 
> > Makes me wonder if anyone's written a tool to find things like this -
> > #ifdefs that will never be defined...
> 
> I seem to remember someone (Joe Perches?) did, and regularly posted
> results to LKML in the past, but at some point switched to publishing
> them on a web page instead.

It was Robert PJ Day.
See http://www.crashcourse.ca/wiki/index.php/Kernel_cleanup


---
~Randy
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