linux-kernel - Re: [PATCH] potential parse error, drivers/serial/dz.h

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Date:	Mon, 16 Jul 2007 18:14:30 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Yoann Padioleau <padator@...adoo.fr>,
	linux-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] potential parse error, drivers/serial/dz.h

On Mon, 16 Jul 2007, Andrew Morton wrote:

> On Mon, 16 Jul 2007 17:02:13 +0200
> Yoann Padioleau <padator@...adoo.fr> wrote:
>
> >
> > potential parse error in declaration under a #ifdef.
>
> A certain parse error, I'd say.  How come nobody is reporting it?
>
> > Signed-off-by: Yoann Padioleau <padator@...adoo.fr>
> >
> >
> > diff --git a/drivers/serial/dz.h b/drivers/serial/dz.h
> > index 9674d4e..9141c37 100644
> > --- a/drivers/serial/dz.h
> > +++ b/drivers/serial/dz.h
> > @@ -125,8 +125,8 @@ #define DZ_XMIT_SIZE   4096
> >  #define DZ_WAKEUP_CHARS   DZ_XMIT_SIZE/4
> >
> >  #ifdef MODULE
> > -int init_module (void)
> > -void cleanup_module (void)
> > +int init_module (void);
> > +void cleanup_module (void);
> >  #endif
> >
> >  #endif /* DZ_SERIAL_H */
>
> I don't think these symbols are actually implemented in anything
> which uses this header.  If they _do_ exist then they are awfully
> named and should be renamed ASAP.  Or they should be made static.
>
> However I suspect they just don't exist, and this stuff should be
> simply deleted.

that header file is included only by drivers/serial/dz.c, whose
Kconfig controlling setting is:

config SERIAL_DZ
        bool "DECstation DZ serial driver"
	...

so, since it's "bool," there's no way "#ifdef MODULE" can ever be
true, yes?

rday
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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