linux-kernel - Re: [PATCH 14/16] dynamic_debug: add trim_prefix() to provide source-root relative paths

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Date:	Wed, 21 Dec 2011 16:32:01 -0500
From:	Jason Baron <jbaron@...hat.com>
To:	greg@...ah.com, Bart Van Assche <bvanassche@....org>
Cc:	jim.cromie@...il.com, joe@...ches.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 14/16] dynamic_debug: add trim_prefix() to provide
 source-root relative paths

On Tue, Dec 20, 2011 at 08:15:55AM +0000, Bart Van Assche wrote:
> On Mon, Dec 19, 2011 at 10:13 PM, Jason Baron <jbaron@...hat.com> wrote:
> > +/* Return the path relative to source root */
> > +static inline const char *trim_prefix(const char *path)
> > +{
> > +       int skip = strlen(__FILE__) - strlen("lib/dynamic_debug.c");
> > +
> > +       if (strncmp(path, __FILE__, skip))
> > +               skip = 0; /* prefix mismatch, don't skip */
> > +
> > +       return path + skip;
> > +}
> 
> Isn't the preferred style to write if (strncmp(...) != 0) ..., i.e. to
> mention "!= 0" explicitly instead of leaving it out when comparing
> strings ?
> 
> Bart.

Greg,

Again, no functional change here, just a style thing. Let me know if you
want a re-post. I am fine with it as-is.

Thanks,

-Jason
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