linux-kernel - Re: [PATCH] isdn: hysdn: Fix error spaces around '*'

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Message-ID: <20190803112432.GA22063@kroah.com>
Date:   Sat, 3 Aug 2019 13:24:32 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Joe Perches <joe@...ches.com>
Cc:     Jose Carlos Cazarin Filho <joseespiriki@...il.com>,
        devel@...verdev.osuosl.org, netdev@...r.kernel.org,
        isdn@...ux-pingi.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] isdn: hysdn: Fix error spaces around '*'

On Sat, Aug 03, 2019 at 04:15:05AM -0700, Joe Perches wrote:
> On Sat, 2019-08-03 at 08:32 +0200, Greg KH wrote:
> > On Fri, Aug 02, 2019 at 07:56:02PM +0000, Jose Carlos Cazarin Filho wrote:
> > > Fix checkpath error:
> > > CHECK: spaces preferred around that '*' (ctx:WxV)
> > > +extern hysdn_card *card_root;        /* pointer to first card */
> []
> > > diff --git a/drivers/staging/isdn/hysdn/hysdn_defs.h b/drivers/staging/isdn/hysdn/hysdn_defs.h
> []
> > > @@ -220,7 +220,7 @@ typedef struct hycapictrl_info hycapictrl_info;
> > >  /*****************/
> > >  /* exported vars */
> > >  /*****************/
> > > -extern hysdn_card *card_root;	/* pointer to first card */
> > > +extern hysdn_card * card_root;	/* pointer to first card */
> > 
> > The original code here is correct, checkpatch must be reporting this
> > incorrectly.
> 
> Here checkpatch thinks that hydsn_card is an identifier rather
> than a typedef.
> 
> It's defined as:
> 	typedef struct HYSDN_CARD {
> 	...
> 	} hysdn_card;
> 
> And that confuses checkpatch.
> 
> kernel source code style would not use a typedef for a struct.
> 
> A change would be to remove the typedef and declare this as:
> 	struct hysdn_card {
> 		...
> 	};
> 
> And then do a global:
> 	sed 's/\bhysdn_card\b/struct hysdn_card/g'
> 
> But that's not necessary as the driver is likely to be removed.

Ah, that makes sense why checkpatch did this, thanks for the
information.

And yes, it's not worth being changed, as this is going to be deleted.
But, I bet we get this sent a lot until it is as it's "easy pickings" :)

thanks,

greg k-h