linux-kernel - Re: BUG: checkpatch

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Date:	Tue, 26 Aug 2008 15:28:25 +0100
From:	Andy Whitcroft <andyw@...ibm.com>
To:	Jaswinder Singh <jaswinder@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, davej@...emonkey.org.uk,
	jschopp@...tin.ibm.com, David Woodhouse <dwmw2@...radead.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: BUG: checkpatch

On Mon, Aug 18, 2008 at 07:50:00PM +0530, Jaswinder Singh wrote:
> [jsr@...winder jaswinder-git]$ cat test.c
> void test(int i, int j, int k)
> {
> 	printk(KERN_INFO "/* Testing i, j, k */\n");
> 	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
> }
> [jsr@...winder jaswinder-git]$ ./linux-2.6/scripts/checkpatch.pl --file test.c
> ERROR: spaces required around that ':' (ctx:VxW)
> #4: FILE: test.c:4:
> +	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  	                   ^
> 
> ERROR: need consistent spacing around '%' (ctx:WxV)
> #4: FILE: test.c:4:
> +	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  	                     ^
> 
> ERROR: spaces required around that ':' (ctx:VxW)
> #4: FILE: test.c:4:
> +	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  	                         ^
> 
> ERROR: need consistent spacing around '%' (ctx:WxV)
> #4: FILE: test.c:4:
> +	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  	                           ^
> 
> ERROR: spaces required around that ':' (ctx:VxO)
> #4: FILE: test.c:4:
> +	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  	                               ^
> 
> total: 5 errors, 0 warnings, 5 lines checked
> 
> test.c has style problems, please review.  If any of these errors
> are false positives report them to the maintainer, see
> CHECKPATCH in MAINTAINERS.
> [jsr@...winder jaswinder-git]$ cat test_working.c 
> void test(int i, int j, int k)
> {
> 	printk(KERN_INFO "/* Testing i, j, k * /\n");
> 	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
> }
> [jsr@...winder jaswinder-git]$ ./linux-2.6/scripts/checkpatch.pl --file test_working.c 
> total: 0 errors, 0 warnings, 5 lines checked
> 
> test_working.c has no obvious style problems and is ready for submission.
> [jsr@...winder jaswinder-git]$ diff -uN test.c test_working.c 
> --- test.c	2008-08-18 19:38:32.000000000 +0530
> +++ test_working.c	2008-08-18 19:38:37.000000000 +0530
> @@ -1,5 +1,5 @@
>  void test(int i, int j, int k)
>  {
> -	printk(KERN_INFO "/* Testing i, j, k */\n");
> +	printk(KERN_INFO "/* Testing i, j, k * /\n");
>  	printk(KERN_INFO "i: %d j: %d k:%d\n", i, j, k);
>  }
> [jsr@...winder jaswinder-git]$ cp test.c test
> [jsr@...winder jaswinder-git]$ ./linux-2.6/scripts/checkpatch.pl --file test
> total: 0 errors, 0 warnings, 5 lines checked
> 
> test has no obvious style problems and is ready for submission.
> [jsr@...winder jaswinder-git]$ 

Bah, a trivial bug in the comments/quote matcher leading to the apparent
close comment taking effect when quoted.  Should be fixed in my next
batch of updates to akpm (0.23).

-apw
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