On Tue, 2013-06-11 at 17:54 -0700, Sören Brinkmann wrote:
> Hi Pintu,
>
> On Mon, Jun 10, 2013 at 11:49:00AM -0700, PINTU KUMAR wrote:
> > >________________________________
> > > From: anish singh <anish198519851...@gmail.com>
> > >To: PINTU KUMAR <pintu_agar...@yahoo.com>
> > >Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>;
> > >"linux...@kvack.org" <linux...@kvack.org>
> > >Sent: Sunday, 9 June 2013 10:58 PM
> > >Subject: Re: [checkpatch] - Confusion
> > >
> > >
> > >On Mon, Jun 10, 2013 at 11:21 AM, PINTU KUMAR <pintu_agar...@yahoo.com>
> > >wrote:
> > >> Hi,
> > >>
> > >> I wanted to submit my first patch.
> > >> But I have some confusion about the /scripts/checkpatch.pl errors.
> > >>
> > >> After correcting some checkpatch errors, when I run checkpatch.pl, it
> > >> showed me 0 errors.
> > >> But when I create patches are git format-patch, it is showing me 1 error.
> > >did you run the checkpatch.pl on the file which gets created
> > >after git format-patch?
> > >If yes, then I think it is not necessary.You can use git-am to apply
> > >your own patch on a undisturbed file and if it applies properly then
> > >you are good to go i.e. you can send your patch.
> >
> > Yes, first I ran checkpatch directly on the file(mm/page_alloc.c) and fixed
> > all the errors.
> > It showed me (0) errors.
> > Then I created a patch using _git format-patch_ and ran checkpatch again on
> > the created patch.
> > But now it is showing me 1 error.
> > According to me this error is false positive (irrelevant), because I did
> > not change anything related to the error and also the similar change
> > already exists somewhere else too.
> > Do you mean, shall I go ahead and submit the patch with this 1 error??
> > ERROR: need consistent spacing around '*' (ctx:WxV)
> >
> > #153: FILE: mm/page_alloc.c:5476:
> > +int min_free_kbytes_sysctl_handler(ctl_table *table, int write,
> Rather a shot into the dark, but it looks like checkpatch is
> misinterpreting 'ctl_table' as an arithmetic operand instead of a type.
> I don't know how checkpatch learns about types created by typedefs, but
> my guess is, that this line
> typedef struct ctl_table ctl_table; (include/linux/sysctl.h)
> is not correctly picked up by checkpatch.
checkpatch isn't a c compiler.
It assumes any <foo>_t is a typedef.
> So, I assume this actually is a false positive.
Yup.
Maybe this would work?
---
scripts/checkpatch.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index b954de5..e673bec 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -264,7 +264,7 @@ our $UTF8 = qr{
our $typeTypedefs = qr{(?x:
(?:__)?(?:u|s|be|le)(?:8|16|32|64)|
- atomic_t
+ atomic_t|ctl_table
)};
our $logFunctions = qr{(?x:
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