linux-kernel - Re: checkpatch false positon on EXPORT

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Date:	Mon, 11 Apr 2016 15:09:42 -0700
From:	Joe Perches <joe@...ches.com>
To:	Daniel Walker <danielwa@...co.com>,
	Andy Whitcroft <apw@...onical.com>,
	open list <linux-kernel@...r.kernel.org>,
	Daniel Walker <dwalker@...o99.com>,
	"xe-kernel@...ernal.cisco.com" <xe-kernel@...ernal.cisco.com>
Subject: Re: checkpatch false positon on EXPORT_SYMBOL

On Mon, 2016-04-11 at 14:51 -0700, Daniel Walker wrote:
> On 03/31/2016 12:21 PM, Joe Perches wrote:
> > 
> > On Thu, 2016-03-31 at 08:01 -0700, Daniel Walker wrote:
> > > 
> > > The below looks like normal code but the last export symbol gets the
> > > warning,
> > > 
> > > 
> > > WARNING:EXPORT_SYMBOL: EXPORT_SYMBOL(foo); should immediately follw its
> > > function/variable
> > > #16: FILE: kernel/acct.c:70:
> > > +EXPORT_SYMBOL(test_export);    /* Error ! */
> > > 
> > > It seems to have to do with the comments at the end of the line. The
> > > first two examples don't have warnings because I removed the comments on
> > > different lines. comments on the variable and export symbol lines gets
> > > the error tho.
> > That looks like a false positive I'll leave for Andy.
> > 
> > $ cat ~/export_symbol.c
> > int test_export_no_comment;
> > EXPORT_SYMBOL(test_export_no_comment);
> > int test_export_comment_int;		/* comment int */
> > EXPORT_SYMBOL(test_export_int);
> > int test_export_comment_symbol;
> > EXPORT_SYMBOL(test_export_symbol);	/* comment symbol */
> > int test_export_both;			/* comment both 1 */
> > EXPORT_SYMBOL(test_export_both);	/* comment both 2 */
> > $
> > 
> > Something's a bit off with the $stat variable:
> > 
> > test_export_int doesn't match the EXPORT_SYMBOL test.
> > test_export_symbol and test_export_both get warnings.
> > 
> 
> Did this get solved? I haven't see anything else on it.

Not by me.

I punted to Andy and I haven't heard from him.

There aren't many cases of this defect in the current
kernel tree, so I don't know how much he might care.