linux-kernel - Re: checkpatch, a patch checking script.

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Message-Id: <20070429174319.222cfac5.randy.dunlap@oracle.com>
Date:	Sun, 29 Apr 2007 17:43:19 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: checkpatch, a patch checking script.

On Fri, 27 Apr 2007 20:36:17 -0700 Roland Dreier wrote:

>  > http://www.codemonkey.org.uk/projects/checkpatch/example.log shows
>  > what fell out of running it on my mbox of lkml from the past month.
>  > Some of them are kinda noisy, and perhaps should be moved under --pedantic
>  > 
>  > I'm all ears for additional regexps, bug reports or other suggestions.
> 
> Looks great... however I notice a few obvious false positives in the
> example log:
> 
>  > Don't init statics to 0/NULL:
>  > 94312:+static const struct in6_addr in6addr_v4mapped = { { { [10] = 0xff, [11] = 0xff } } };
> 
> ummm?

fixed

>  > 137054:+static uint32_t drvr_ver  = 0x02200207;
> 
> that ain't zero...

not?  fixed.

>  > 230079:+                path->static_rate = 0;
> 
> and that ain't a static variable.

ack, fixed.

> I guess trying to parse C in a regexp is a little tricky.
> 
> Also, it would be nice to be able to do something like
> 
>     git diff v2.6.20..|perl ~/checkpatch.pl -

I'll check into how to treat "-" as STDIN.

> rather than having to create a temp file -- as it stands that command
> produces
> 
>     unknown option: -
>     usage: findbugs.pl [-options] file(s)
>       -allsource : check entire source file, not just '+' patch lines
>       -pedantic : TBD
>       -style : TBD
>       -v, --verbose : verbose
>       -h, --help : this help text
>     Version: 002
> 
> And even worse
> 
>     git diff v2.6.20..|perl ~/checkpatch.pl
> 
> just silently does nothing (maybe a "no input files" warning would be
> a good clue for people).

or print usage info?


Thanks.
---
~Randy
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