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Date: Wed, 6 Dec 2017 16:01:55 +0100 (CET)
From: Rolf Evers-Fischer <embedded24@evers-fischer.de>
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To: Joe Perches <joe@perches.com>
cc: Rolf Evers-Fischer <embedded24@evers-fischer.de>, apw@canonical.com,
        linux-kernel@vger.kernel.org
Subject: Re: Checkpatch ignores spelling error by using -f
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On Wed, 6 Dec 2017, Joe Perches wrote:

> On Wed, 2017-12-06 at 15:13 +0100, Rolf Evers-Fischer wrote:
> > Hello,
> > I've just checked the file drivers/tty/serial/8250/8250_omap.c, using 
> > checkpatch.pl, but I forgot the '-f' option (for file).
> > 
> > Surprisingly the checkpatch script reported a misspelling:
> > 
> > "WARNING: 'additionaly' may be misspelled - perhaps 'additionally'?
> > #417: 
> >          * We enable TRIG_GRANU for RX and TX and additionaly we set"
> > 
> > Additionally it reported that the file does not appear to be a 
> > unified-diff (due to my mistake).
> > 
> > Running checkpatch again with '-f', it didn't report any problems:
> > 
> > "drivers/tty/serial/8250/8250_omap.c has no obvious style problems and is 
> > ready for submission."
> > 
> > Is this a bug in checkpatch.pl? Or is it a feature?
> 
> feature.  kinda.
> 
> checkpatch reports spelling errors in commit messages.
> 
> Without the -f, checkpatch is reading its input as a
> commit message before expecting to find a diff/patch.
> 
> 
> 
> 

Thank you very much for this explanation.

Best regards,
 Rolf